2010 Mechanical, Thermal, and Chemical Properties Archives | The American Ceramic Society

2010 Mechanical, Thermal, and Chemical Properties

Polymer-Derived SiOC/ZrO2 Ceramic Nanocomposites with Excellent High-Temperature Stability

By / January 27, 2010

Volume 93 Issue 1, Pages 241 – 250 Emanuel Ionescu, Christoph Linck, Claudia Fasel, Mathis Müller, Hans–Joachim Kleebe, Ralf RiedelPublished Online: Oct 29 2009 4:26PM DOI: 10.1111/j.1551-2916.2009.03395.x ABSTRACT Polymer-derived SiOC/ZrO2 ceramic nanocomposites have been prepared using two synthetic approaches. A commercially available polymethylsilsesquioxane (MK Belsil PMS) was filled with nanocrystalline zirconia particles in the first…

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Molecular Dynamics Simulations of the Effect of the Composition of the Intergranular Film on Fracture in Si3N4

By / January 27, 2010

Volume 93 Issue 1, Pages 235 – 240 Stephen H. Garofalini, Shenghong ZhangPublished Online: Oct 29 2009 4:25PM DOI: 10.1111/j.1551-2916.2009.03400.x ABSTRACT Molecular dynamics computer simulations were used to study the fracture behavior of silica, multicomponent silicate, and oxynitride intergranular films (IGFs) between silicon nitride crystals as a function of composition, film thickness, and crystallographic orientation.…

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Hf3AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance

By / January 27, 2010

Volume 93 Issue 1, Pages 228 – 234 Fangzhi Li, Bin Liu, Jingyang Wang, Yanchun ZhouPublished Online: Oct 29 2009 6:06PM DOI: 10.1111/j.1551-2916.2009.03387.x ABSTRACT In this work, bulk Hf3AlN ceramic was synthesized by an in situ reaction/hot pressing method using Hf and AlN as initial materials. The reaction path during the synthesis process was investigated.…

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CaO Powders from Oyster Shells for Efficient CO2 Capture in Multiple Carbonation Cycles

By / January 27, 2010

Volume 93 Issue 1, Pages 221 – 227 Kai-Wen Ma, Hsisheng TengPublished Online: Oct 29 2009 4:23PM DOI: 10.1111/j.1551-2916.2009.03379.x ABSTRACT The carbonation/calcination loop of CaO/CaCO3 is an efficient process for CO2 capture. This study investigated the CO2 capture capability of CaO powders derived from oyster shells and reagent-grade CaCO3. The oyster shell-derived CaO powder had…

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Empirical Equation for Calculating the Density of Oxide Glasses

By / January 27, 2010

Volume 93 Issue 1, Pages 217 – 220 Seiji Inaba, Shigeru FujinoPublished Online: Dec 3 2009 4:23PM DOI: 10.1111/j.1551-2916.2009.03363.x ABSTRACT The density of oxide glass including silicate, borate, phosphate, tellurite, and germanate glasses were measured using the Archimedes method. On the assumption that the ionic packing ratio is approximately a constant independent of chemical composition,…

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Elastic Indentation Response of Float Glass Surfaces

By / January 27, 2010

Volume 93 Issue 1, Pages 209 – 216 Andrea M. Muller, David J. GreenPublished Online: Oct 29 2009 4:23PM DOI: 10.1111/j.1551-2916.2009.03377.x ABSTRACT Instrumented Hertzian indentation was used to evaluate the reduced elastic modulus and cone-crack initiation forces for the as-received surfaces of commercial float glasses. Custom-built indentation equipment with the capability of acoustic emission detection…

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Hot Corrosion Behavior of Barium Aluminosilicate-Coated C/SiC Composites at 900°C

By / January 27, 2010

Volume 93 Issue 1, Pages 204 – 208 Yiguang Wang, Yahui Wu, Laifei Cheng, Litong ZhangPublished Online: Oct 20 2009 1:45PM DOI: 10.1111/j.1551-2916.2009.03339.x ABSTRACT Barium aluminosilicates (BAS) were coated on the carbon fiber-reinforced silicon carbide composites (C/SiC) as environmental barriers. The hot corrosion behavior of the coated composites was studied at 900°C in dry air…

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The Multistep Nature of the Kaolinite Dehydroxylation: Kinetics and Mechanism

By / January 27, 2010

Volume 93 Issue 1, Pages 197 – 203 Andres Ortega, Manuel Macías, Francisco J. GotorPublished Online: Oct 20 2009 1:44PMDOI: 10.1111/j.1551-2916.2009.03328.x ABSTRACT The thermal dehydroxylation of kaolinite has been reexamined using small sample weights, a homogeneous particle size distribution and high-vacuum conditions in order to reduce the influences of heat and mass-transfer phenomena. The controlled…

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