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`ENGINEERING LIBRARY
`DISPLAY PERIODICAL
`Non-circulating until:
`FEB 1 2 1999
`
`tR~American Ceramic Society
`
`Incorporating Advanced Ceramic Materials and Communications
`Volume 81 Number 12
`December 1998
`
`GE-1024.001
`
`

`
`ourna
`
`t~~ American Ceramic Society
`
`Incorpo ratin g Advanced Ceramic M ateri als and Communication s
`
`Journal Editors
`Harlan U. Anderson
`University of Missouri-Rolla
`Lisa Klein
`Rutgers University
`David Marshall
`Rockwell International
`Society Publications Editor
`John B. Wachtman Jr.
`Executive Director & Publisher
`W. Paul Holbrook
`Director of Publications
`Mark Mecklenborg
`Managing Editor
`Russell W. Jordan Jr.
`Senior Associate Editor
`John C. Webb
`Associate Editor
`Jeffrey S. Couts
`Review Process Administrator
`Robert D. Thompson
`Review Process Coordinator
`Marilyn Stoltz
`Publication Production Manager
`Thom Misiak
`Advertising Sales Manager
`Annette Delagrange
`Committee on Publications
`Richard Haber, Chair
`Jennifer Lewis
`Terrence E. Mitchell
`Carlo Pantano
`Raj Sordia, ex officio
`Robert Oxnard, ex officio
`Richard C. Riman, ex officio
`John B. Wachtman Jr., ex officio
`W. Paul Holbrook, ex officio
`Mark Mecklenborg, ex officio
`Associate Editors
`Paul Becher, Oak Ridge National Lab
`Lennart Bergstrom , Institute for Surface
`Chemistry
`Theodore Besmann, Oak Ridge National Lab
`John Blendell , NIST
`Rajendra K. Sordia, University of Washington
`Keith Bowman, Purdue University
`Jeffrey Brinker, Sandia National Labs
`Richard Brow, Sandia National Labs
`Paul Brown, Pennsylvania State University
`Darryl Butt, Los Alamos National Lab
`Altai Carim, Pennsylvania State University
`I-Wei Chen , University of Pennsylvania
`Yet-Ming Chiang, Massachusetts Institute of
`Technology
`David Clarke, University of California at
`Santa Barbara
`Nils E. Claussen, Technical University of
`Hamburg-Harburg
`
`Associate Editors, continued
`Robert Condrate, Alfred University
`Brian Cox, Rockwell Science Center
`Raymond Cutler, Ceramatec
`Steven Danforth, Rutgers University
`Reinhold Dauskardt, Stanford University
`Peter K. Davies, University of Pennsylvania
`Lutgard C. De Jonghe, University of California
`at Berkeley
`Nancy Dudney, Oak Ridge National Lab
`Bruce Dunn , University of California at Los
`Angeles
`Anthony Evans, Harvard University
`Katherine Faber, Northwestern University
`Roger French , E.I. du Pont de Nemours
`Bhaskar Ghate, AT&T Bell Labs, Retired
`Georg Grathwohl, University of Bremen
`David Green, Pennsylvania State University
`Michael Grutzeck, Pennsylvania State
`University
`John W. Halloran , University of Michigan
`William Hammetter, Sandia National Labs
`Carol Handwerker, NIST
`Martin Harmer, Lehigh University
`Shin-ichi Hirano, Nagoya University
`Wayne Huebner, University of Missouri-Roi/a
`Nathan S. Jacobson, NASA-Lewis
`Research Center
`Anand Jagota, E.I. du Pont de Nemours
`Carol Jantzen, Westinghouse
`David W. Johnson, AT&T Bell Labs
`Ronald Kerans, Wright Patterson AFB
`Charles Kurkjian, AT&T Bell Labs
`Brian R. Lawn, NIST
`Lionel Levinson, General Electric
`Jennifer Lewis, University of Illinois
`Ronald Loehman , Sandia National Labs
`Terrence Mitchell , Los Alamos National Lab
`Zuhair Munir, University of California at Davis
`Roger Naslain, Laboratoire des Composites
`Thermostructuraux
`Carlo Pantano, Pennsylvania State University
`Triplicane Parttiasarathy, UES, Inc.
`John Petrovic, Los Alamos National Lab
`George Pharr, Rice University
`Pradeep Phule, University of Pittsburgh
`Rishi Raj, University of Colorado
`Clive Randall , Pennsylvania State University
`Roy Rice, W. R. Grace, Retired
`Richard Riman, Rutgers University
`John Ritter, University of Massachusetts
`Robert S. Roth, NIST
`Ronald Scattergood, North Carolina State
`University
`George Scherer, Princeton University
`Walter Schulze, Alfred University
`Alan Searcy, University of California at Berkeley
`George Sigel, Rutgers University
`James Smialek, NASA-Lewis Research
`Center
`Robert Snyder, Ohio State University
`Mark Stet!, National Refractories
`Michael Thouless, University of Michigan
`Bruce Tuttle, Sandia National Labs
`Sheldon Wiederhorn, NIST
`David Wilkinson, McMaster University
`Frank Zok, University of California at Santa
`Barbara
`Charles F. Zukoski , University of Illinois
`
`ISSN 0002-7820
`Volume 81
`Number 12
`December 1998
`
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`lished in the December Issue of the Journal.
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`The Journal of the American Ceramic Society con(cid:173)
`tains records of original research that provide or
`lead to fundamental principles of ceramics. Pub(cid:173)
`lished papers explore mechanisms, structures, and
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`apply to a broad class of materials and processes,
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`Copyright © 1998 by The American Ceramic
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`
`COVER PHOTOGRAPH: Magnetic force microscopy image of superconducting current flow (J = 100 Ncm 2
`) in a thick film at
`60-65 K. See feature article by Dawn Bonnell, "Local Structure and Properties of Oxide Surfaces: Scanning Probe Analyses of
`Ceramics," this issue, pages 3049-70.
`
`GE-1024.002
`
`

`
`TABLE OF CONTENTS
`
`VOLUME 81, 1998
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`January [I]
`Centennial Feature
`Porcelain-Raw Materials, Processing, Phase Evolution, and Mechanical Behavior * William M. Carty and Udayan Senapati .....
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`Articles
`Transformation-Toughened Ceramic Multilayers with Compositional Gradients * Jaedeok Yoo, Kyung-max Cho,
`Won Sang Bae, Michael Cima, and Subra Suresh ..............................................................................................................................................
`Calcium-Ion Selective Site Occupation at Ruddlesden-Popper-Type Faults and the Resultant Dielectric Properties of
`A-Site-Excess Strontium Calcium Titanate Ceramics * Masayuki Fujimoto, Toshimasa Suzuki, Yuji Nishi,
`Katsuhiko Arai, and Junzo Tanaka..........................................................................................................................................................................
`Alumina/Silicon Carbide Nanocomposites by Hybrid Polymer/Powder Processing: Microstructures and Mechanical
`Properties * Martin Sternitzke, Brian Derby, and Richard J. Brook.............................................................................................................
`Coarsening in a Viscous Matrix * George W. Scherer.........................................................................................................................................
`Cyclic-Fatigue Crack Initiation and Propagation in Smooth Alumina Specimens * Hidehiro Kishimoto, Akira Ueno,
`Atsushi Matsunaga, and Takuya Kondo.................................................................................................................................................................
`Kinetics of the Amorphous -7 'Y -7 ex Transformations in Aluminum Oxide: Effect of Crystallographic
`Orientation * Todd W. Simpson, Qingzhe Wen, Ning Yu, and David R. Clarke.....................................................................................
`Defect Chemistry of (La,Sr)Mn03 * Janusz Nowotny and Mieczyslaw Rekas ..............................................................................................
`Chemical and Morphological Changes of Vacuum-Plasma-Sprayed Hydroxyapatite Coatings during Immersion in Simulated
`Physiological Solutions * Suk-Woo Ha, Roland Reber, Karl-Ludwig Eckert, Marc Petitmermet, JOrg Mayer,
`Erich Wintermantel, Christian Baerlocher, and Heiko Gruner .........................................................................................................................
`Thermodynamic Stability of lntergranular Amorphous Films in Bismuth-Doped Zinc Oxide * Haifeng Wang and
`Yet-Ming Chiang.........................................................................................................................................................................................................
`Texture Development, Microstructure Evolution, and Crystallization of Chemically Derived PZT Thin Films *
`San-Yuan Chen and I-Wei Chen.............................................................................................................................................................................
`Thermal Analysis of Amorphous Phases in Hydroxyapatite Coatings * Karlis A. Gross, Volfgangs Gross, and
`Christopher C. Berndt.................................................................................................................................................................................................
`Tensile Behavior of a Quasi-Isotropic Carbon-Carbon Composite * Fumiharu Namiki and Tsu-Wei Chou.........................................
`Nanomaterial Deposits Formed by DC Plasma Spraying of Liquid Feedstocks * Jeganathan Karthikeyan,
`Christopher C. Berndt, Sri Reddy, Jenn-Yue Wang, Alexander H. King, and Herbert Herman.............................................................
`Effect of Grain-Boundary Phase on Dynamic Compression Fatigue in Hot-Pressed Silicon Nitride * Vinod Sharma,
`Sia Nemat-Nasser, and Kenneth S. Vecchio.........................................................................................................................................................
`Preparation of Novel Core-Shell Nanocomposite Particles by Controlled Polymer Bridging * Tsung-yuan Chen and
`P. Somasundaran ..........................................................................................................................................................................................................
`Synthesis and Sintering of Cerium(lll) Sulfide Powders * Shinji Hirai, Kazuyoshi Shimakage, Yasushi Saitou,
`Toshiyuki Nishimura, Yoichiro Uemura, Mamoru Mitomo, and Leo Brewer..............................................................................................
`Microfabrication of Ceramics by Co-extrusion * Charles Van Hoy, Andrew Barda, Michelle Griffith, and John W. Halloran.......
`Silicon Carbide Membranes Modified by Chemical Vapor Deposition Using Species of Low Sticking Coefficients in a
`Silane/Acetylene Reaction System * Lang-Luen Lee and Dah-Shyang Tsai ..............................................................................................
`Impact Strength of Continuous-Carbon-Fiber-Reinforced Silicon Nitride Measured by Using the Split Hopkinson Pressure
`Bar * Kinya Ogawa, Fumiko Sugiyama, Giuseppe Pezzotti, and Toshihiko Nishida...............................................................................
`Densification of Sol-Gel-Derived Mullite Ceramics after Cold Isostatic Pressing up to 1 GPa * Hidehiro Kamiya,
`Hisao Suzuki, Takahiro Ichikawa, Yong lck Cho, and Masayuki Horio .......................................................................................................
`Electrical Conductivity in Transparent ZnG3204 : Reduction and Surface-Layer Structure Transformation * Zheng Yan,
`Humihiko Takei, and Hiroshi Kawazoe .................................................................................................................................................................
`In Situ Measurements of Frictional Bridging Stresses in Alumina Using Fluorescence Spectroscopy * Giuseppe Pezzotti,
`Orfeo Sbaizero, Valter Sergo, Naoki Muraki, Ken Maruyama, and Toshihiko Nishida............................................................................
`Nonisothermal Reaction Kinetics of SrNb20 6 and BaNb20 6 for the Formation of Sr_.Ba 1_..NJJ20 6 * Wen-Jiung Lee and
`Tsang-Tse Fang ............................................................................................................................................................................................................
`Communications
`Evolution of the Phase Content of Zirconia Powders Prepared by Sol-Gel Acid Hydrolysis * Patricia C. Rivas,
`Jorge A. Martinez, Maria C. Caracoche, Agustin M. Rodriguez, Alberto R. L6pez Garcia, Robert S. Pavlik Jr., and
`Lisa C. Klein.................................................................................................................................................................................................................
`Infiltration of Glass Melts into Fully Dense Al20 3 and MgO Ceramics * Jeong-Joo Kim and Martin P. Harmer...............................
`Electrochemical Determination of the Gibbs Energy of Formation of MgA120 4 * K. Thomas Jacob,
`Kampurath P. Jayadevan, and Yoshio Waseda ....................................................................................................................................................
`Microwave Dielectric Study of Water Structure in the Hydration Process of Cement Paste * Nobuhiro Miura,
`Naoki Shinyashiki, Shin Yagihara, and Masami Shiotsubo ..............................................................................................................................
`Morphological Effects of Grinding on Bismuth-Based Cuprate Superconductors * Yoshihiro Kusano, Jun Takada,
`Minoru Fukuhara, Akim Doi, Yasunori Ikeda, and Mikio Takano .................................................................................................................
`Determination of Valence States of Chromium in Calcium Chromates by Using X-ray Absorption Near-Edge Structure
`(XANES) Spectroscopy * Iztok Arcon, Breda Mirtic, and Alojz Kodre .....................................................................................................
`Contact Damage Accumulation in Ti 3SiC2 * It Meng Low, Seung Kun Lee, Brian R. Lawn, and Michel W. Barsoum ...................
`Stress-Induced Resistivity Anomaly in Semiconducting Barium Titanate Ceramic Wire * Hirofumi Matsuda,
`Makoto Kuwahara, and Kohichi Hamamoto .........................................................................................................................................................
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`Endothermic Reactions between Mullite and Silicon Carbide in an Argon Plasma Environment 1:. Youngsoo Park,
`Michael J. McNallan, and Darryl P. Butt ..............................................................................................................................................................
`Oriented Structure and CrystalJography of Directionally Solidified LaB 6- ZrB2 Eutectic 1:. Chang-Ming Chen,
`Wang-Cheng Zhou, and Li-Tong Zhang ................................................................................................................................................................
`Oxygen Position and Bond Lengths from Lattice Parameters in Tetragonal Zirconias 1:. Christopher J. Howard,
`Brett A. Hunter, and Dae-Joon Kim.......................................................................................................................................................................
`Single Crystals of Pb(Mg 113Nb 213)0 3-35 mo!% PbTi03 from Polycrystalline Precursors 1:. Tao Li, Adam M. Scotch,
`Helen M. Chan, Martin P. Harmer, Seung-Eek Park, Thomas R. Shrout, and Joseph R. Michael.........................................................
`Compositional Dependence of Infrared-to-Visible Upconversion in Yb3+- and Er3+-Codoped Germanate, Gallate, and TelJurite
`Glasses 1:. Takahiro Murata, Hiromichi Takebe, and Kenji Morinaga ..........................................................................................................
`Orthophosphates and Diphosphates Containing Zinc and Copper and Zinc and Cobalt 1:. Carlos E. Bamberger and
`Eliot D. Specht.............................................................................................................................................................................................................
`Elevated-Temperature Toughness and Hardness of a Hot-Pressed Al 20 3-WC-Co Composite 1:. Weon-Pil Tai and
`Tadahiko Watanabe .....................................................................................................................................................................................................
`X-ray Photoemission Spectroscopy (XPS) and Thermally Stimulated Current (TSC) Studies on the Resistance Degradation of
`Iron-Doped Titania Ceramics 1:. Jianxin Sheng, Tatsuo Fukami, and Junichi Karasawa ..........................................................................
`Eutectic Precipitation of the Spine! Solid Solution-Yttrium Aluminum Garnet (YAG) System 1:. Shuqiang Wang,
`Takashi Akatsu, Yasuhiro Tanabe, Zenbe-e Nakagawa, and Eiichi Yasuda.................................................................................................
`Early-Stage Thermal Oxidation of Carbothermal 13-Sialon Powder 1:. Shiro Shimada, Takenori Aoki, Hajime Kiyono, and
`Kenneth J. D. MacKenzie..........................................................................................................................................................................................
`Nonsymmetric Deformation Behavior of Lead Zirconate Titanate Determined in Bending Tests 1:. Theo Fett,
`Dietrich Munz, and Gerhard Thun ..........................................................................................................................................................................
`
`February [2]
`Centennial Feature
`Creep Mechanisms in Multiphase Ceramic Materials 1:. David S. Wilkinson..................................................................................................
`Articles
`Effect of the Strontium:Barium Ratio and Atmosphere on the Sintering Behavior of Strontium Barium Niobate 1:.
`Wen Jiung Lee and Tsang-Tse Fang ......................................................................................................................................................................
`Possible Role of the Oxygen Potential Gradient in Enhancing Diffusion of Foreign Ions on a-Al 20 3 Grain Boundaries 1:.
`Bruce A. Pint, Anthony J. Garratt-Reed, and Linn W. Hobbs .........................................................................................................................
`Grain-Boundary Diffusion of Strontium in (La,Ca)Cr03 Perovskite-Type Oxide by SIMS 1:. Teruhisa Horita, Natsuko Sakai,
`Tatsuya Kawada, Harumi Yokokawa, and Masayuki Dokiya ..........................................................................................................................
`Humidity-Sensing Characteristics of Divalent-Metal-Doped Indium Oxide Thin Films 1:. Radhouane Bel Hadj Tahar,
`Takayuki Ban, Yutaka Ohya, and Yasutaka Takahashi .....................................................................................................................................
`Influence of Thermal and Electrical Histories on Domain Structure and Polarization Switching in Potassium-Modified Lead
`Zirconate Titanate Ceramics 1:. Qi Tan and Dwight Viehland ........................................................................................................................
`Piezoresistivity in PTCR Barium Titanate Ceramics: I, Experimental Findings 1:. Joseph S. Capurso and Walter A. Schulze..........
`Piezoresistivity in PTCR Barium Titanate Ceramics: II, Mathematical Modeling 1:. Joseph S. Capurso and Walter A. Schulze ......
`Synthesis and Electrical Properties of Dense Ce0 .9Gd0 . 10 1.95 Ceramics 1:. Keqin Huang, Man Feng, and John B. Goodenough.....
`Interface Nanostructure of Brazed Silicon Nitride 1:. Chihiro Iwamoto and Shun-ichiro Tanaka ...............................................................
`Microstructure and Chemistry of Intergranular Glassy Films in Liquid-Phase-Sintered Alumina 1:. Rik Brydson,
`Shih-Chieh Chen, Frank L. Riley, Steve J. Milne, Xiaoqing Pan, and Manfred Riihle.............................................................................
`Low-Temperature Synthesis, Characterization, and Properties of Lead-Based Ferroelectric Niobates 1:. Michael M. A. Sekar and
`Arvind Halliyal .............................................................................................................................................................................................................
`Electrokinetic Behavior and Stability of Silicon Carbide Nanoparticulate Dispersions 1:. Pedro Tartaj, Michael Reece, and
`Jose S. Moya. ................................................................................................................................................................................................................
`Spectroscopic Studies on the Localization of Vanadium(IV) in Vanadium-Doped Zircon Pigments 1:. Manuel Ocafia,
`Agustin R. Gonzalez-Elipe, Victor M. Orera, Pedro Tartaj , and Carlos J. Serna........................................................................................
`Titanium Oxide Thin Films on Organic Interfaces through Biomimetic Processing 1:. Suresh Baskaran, Lin Song, Jun Liu,
`Yuan L. Chen, and Gordon L. Graff ......................................................................................................................................................................
`Communications
`Oxidation-Induced Microstructural Change of Si-Ti-C-0 Fibers 1:. Ken-ichi Kakimoto, Toshio Shimoo, and
`Kiyohito Okamura .......................................................................................................................................................................................................
`Characteristics of Strontium Aluminate Crystals Used for Long-Duration Phosphors 1:. Tooru Katsumata, Kazuhito Sasajima,
`Takehiko Nabae, Shuji Komuro, and Takitaro Morikawa.................................................................................................................................
`Study of Phase Relationships within the Mg0-Cu0-Cu20-P20 5 System 1:. Carlos E. Bamberger..........................................................
`In Situ Processing and Properties of SiC/MoSi2 Nanocomposites 1:. Jong Ik Lee, Norman L. Hecht, and Tai-II Mah ........................
`Preparation of a Barium Titanate- Dispersed-Magnesia Nanocomposite 1:. Torn Nagai, Hae Jin Hwang, Masaki Yasuoka,
`Mutsuo Sando, and Koichi Niihara .........................................................................................................................................................................
`Processing and Mechanical Properties of Pressureless-Sintered Niobium-Alumina-Matrix Composites 1:. Daniel E. Garcia,
`Silvia Schicker, JOm Bruhn, Rolf Janssen, and Nils Claussen.........................................................................................................................
`Dynamics of Consolidation and Crack Growth in Nanocluster-Assembled Amorphous Silicon Nitride 1:. Kenji Tsuruta,
`Aiichiro Nakano, Rajiv K. Kalia, and Priya Vashishta ......................................................................................................................................
`Improvement of the PTCR Effect in Ba 1_xSrxTi03 Semiconducting Ceramics by Doping of Bi20 3 Vapor during Sintering 1:.
`Jianquan Qi , Wanping Chen, Yajing Wu, and Longtu Li .................................................................................................................................
`Highly Oriented (Zr07Sn03)Ti04 Thin Films Grown by rfMagnetron Sputtering 1:. Fang-Jy Wu and Tseung-Yuen Tseng .............
`Sintering of ChemicalJy Synthesized Lead(II) Selenide Fine Powders 1:. Hidero Unuma, Naoki Shigetsuka, Kanji Masui,
`Jiro Nagao, and Minoru Takahashi .........................................................................................................................................................................
`Hydrothermal Synthesis of Interstratified Lizardite/Saponite 1:. Kazuo Torii, Yoshio Onodera, Hiromichi Hayashi ,
`Takako Nagase, and Takashi Iwasaki.....................................................................................................................................................................
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`
`Corrections
`Thermodynamic Assessment of the Silver-Oxygen System -{:{ Jerome Assa!, Bengt Hallstedt, and Ludwig J. Gauckler ....................
`Shift of the Curie Point of Barium Titanate Ceramics with Sintering Temperature -{:{ Makoto Kuwahara, Hirofumi Matsuda,
`Natsuko Kurata, and Eiji Matsuyama.....................................................................................................................................................................
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`March [3]
`Articles
`Surface Formation Energy for Intergranular Fracture in Two-Dimensional Polycrystals -{:{ Elizabeth A. Holm.....................................
`Hot Pressing of Annular Alumina-Zirconia Composites -{:{ Sandeepan Bhattacharya and Karl Jakus.......................................................
`Hyperfine Interactions of cis and trans Octahedral Fe2+ Sites in the Layered Silicate Annite -{:{ Joice Terra and
`Donald E. Ellis.............................................................................................................................................................................................................
`Light-Scattering Properties of Representative, Morphological Rutile Titania Particles Studied Using a Finite-Element
`Method -{:{ Erik S. Thiele and Roger H. French ..................................................................................................................................................
`Simulation of Grain Growth and Pore Migration in a Thermal Gradient -{:{ Veena Tikare and Elizabeth A. Holm..............................
`Application of the Potts Model to Simulation of Ostwald Ripening -{:{ Veena Tikare and James D. Cawley.........................................
`Three-Dimensional Computer Simulation of Ferroelectric Domain Formation -{:{ Hong-Liang Hu and Long-Qing Chen ....................
`Atomistic Simulations of Materials Fracture and the Link between Atomic and Continuum Length Scales -{:{ Fabrizio Cieri,
`Simon R. Phillpot, Dieter Wolf, and Sidney Yip ................................................................................................................................................
`Thermodynamics of Oxides with Substitutional Disorder: A Microscopic Model and Evaluation of Important Energy
`Contributions -{:{ Gerbrand Ceder, Adrian F. Kohan, Mehmet K. Aydinol, Patrick D. Tepesch, and Anton Van der Ven..............
`Numerical Simulation of Zener Pinning with Growing Second-Phase Particles -{:{ Danan Fan, Long-Qing Chen, and
`Shao-Ping P. Chen.......................................................................................................................................................................................................
`Three-Dimensional Finite-Element Analysis of Viscous Sintering -{:{ Hua Zhou and Jeffrey J. Derby.....................................................
`Atomic Force Microscopy Study of Ceramic Powder Compacts during Drying -{:{ Mirjana Prica, Kevin Kendall, and
`Svend A. Markland .....................................................................................................................................................................................................
`Adsorption Effects on the Rheological Properties of Aqueous Alumina Suspensions with Polyelectrolyte -{:{ Lu-Cun Guo,
`Yao Zhang, Nozomu Uchida, and Keizo Uematsu .............................................................................................................................................
`Coexistence of Relaxor and Normal Ferroelectric Phases in Morphotropic Phase Boundary Compositions of
`Lanthanum-Modified Lead Zirconate Titanate -{:{ Surya M. Gupta, Jie-Fang Li, and Dwight Viehland...............................................
`Calculation of Grain-Boundary Bonding in Rare-Earth-Doped i3-Si3N4 -{:{ Tetsuo Nakayasu, Tetsuo Yamada, Isao Tanaka,
`Hirohiko Adachi, and Seishi Goto...........................................................................................................................................................................
`Contact-Induced Transverse Fractures in Brittle Layers on Soft Substrates: A Study on Silicon Nitride Bilayers -{:{
`Kee Sung Lee, Satapom Wuttiphan, Xiao-Zhi Hu, Seung Kun Lee, and Brian R. Lawn......... ................................................................
`Development of Low-Toxicity Gelcasting Systems -{:{ Mark A. Janney, Ogbemi 0. Omatete, Claudia A. Walls,
`Stephen D. Nunn, Randy J. Ogle, and Gary Westmoreland.............................................................................................................................
`Growth of Ti02 Single Crystals and Bicrystals by the Laser-Heated Floating-Zone Method -{:{ Toshihiro Kotani and
`Harry L. Tuller .............................................................................................................................................................................................................
`Quantitative Comparison of Transmission Electron Microscopy Techniques for the Study of Localized Ordering on a
`Nanoscale -{:{ Xiaoqing Pan, Wayne D. Kaplan, Manfred Ri.ihle, and Robert E. Newnham....................................................................
`Free-Energy-Based Model of Chemical Equilibria in the Ca0- Si02- H20 System -{:{ Jeffrey J. Thomas and
`Hamlin M. Jennings ..................................................................................................................................................................................