Journal: Journal of the American Ceramic Society

Abbreviation

J Am Ceram Soc

Publisher

American Ceramic Society

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ISSN

1551-2916
0002-7820

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Publications1 - 10 of 58
  • Dynamics of hollow and solid alumina particle formation in spray flames
    Item type: Journal Article
    Tani, Takao; Takatori, Kazumasa; Pratsinis, Sotiris E. (2004)
    Journal of the American Ceramic Society
  • Rheology of Concentrated Suspensions Containing Weakly Attractive Alumina Nanoparticles
    Item type: Journal Article
    Studart, André R.; Amstad, Esther; Antoni, Mathieu; et al. (2006)
    Journal of the American Ceramic Society
    The use of nanoparticles for the fabrication of new functional ceramics and composites often requires the preparation of concentrated fluid suspensions. However, suspensions containing nanoparticles are limited in solids content because of the excluded volume formed by the dispersant adlayer around the particles. We investigated the effect of the adlayer thickness on the rheological behavior of suspensions containing model alumina nanoparticles, using dispersant molecules with deliberately tailored chain length. The apparent viscosity and yield stress of the particle suspensions were markedly decreased by increasing the dispersant length, mainly due to a reduction of the attractive forces among particles. Fluid suspensions with solids content up to 35 vol% were prepared in toluene using a dispersant length of 2.5 nm. Our experimental results and viscosity predictions based on a hard sphere model indicate that fluid suspensions with up to 43 vol% of 65 nm alumina particles could be prepared using an optimum dispersant length of about 3.6 nm.
  • Compressibility and phase transition kinetics of lanthanide-doped zircon
    Item type: Journal Article
    Van Westrenen, Wim; Frank, Mark R.; Fei, Yingwei; et al. (2005)
    Journal of the American Ceramic Society
  • Microstructural Control of Self-Setting Particle-Stabilized Ceramic Foams
    Item type: Journal Article
    Krauss Juillerat, Franziska; Gonzenbach, Urs T.; Elser, Pierre; et al. (2011)
    Journal of the American Ceramic Society
  • Optimization of Bioglass Scaffold Fabrication Process
    Item type: Journal Article
    Chen, Qizhi; Mohn, Dirk; Stark, Wendelin J. (2011)
    Journal of the American Ceramic Society
  • Experimental Phase Diagram Determination and Thermodynamic Assessment of the CeO2-Gd2O3-CoO System
    Item type: Journal Article
    Ivas, Toni; Povoden-Karadeniz, Erwin; Grundy, Nicholas; et al. (2013)
    Journal of the American Ceramic Society
  • Phase evolution in yttria-stabilized zirconia thermal barrier coatings studied by rietveld refinement of X-ray powder diffraction patterns
    Item type: Journal Article
    Witz, Grégoire; Shklover, Valery; Steurer, Walter; et al. (2007)
    Journal of the American Ceramic Society
    One failure mechanism of thermal barrier coatings composed of yttria-stabilized zirconia (YSZ) has been proposed to be caused, in part, by the transformation of the tetragonal phase of YSZ into its monoclinic phase. Normally, studies of phase evolution are performed by X-ray diffraction (XRD) and by evaluating the intensities of a few diffraction peaks for each phase. However, this method misses some important information that can be obtained with the Rietveld method. Using Rietveld's refinement of XRD patterns, we observed, upon annealing of YSZ coatings, an increase of cubic phase content, a reduction in as-deposited tetragonal phase content, and the appearance of a new tetragonal phase having a lower yttria content that coexists with the as-deposited tetragonal phase of YSZ. © 2007 The American Ceramic Society
  • Thermoelectric Ceramics for Energy Harvesting
    Item type: Journal Article
    Koumoto, Kunihito; Funahashi, Ryoji; Guilmeau, Emmanuel; et al. (2013)
    Journal of the American Ceramic Society
  • The Thermodynamics of Vapor Synthesis of AlN from Aluminum Metal and its Halides
    Item type: Journal Article
    Hashman, Thomas W.; Pratsinis, Sotiris E. (1992)
    Journal of the American Ceramic Society
    A thermodynamic analysis for the vapor synthesis of AlN is presented. A thermodynamic equilibrium computer code and recent thermochemical tables are used to evaluate various reactant gases for their potential to produce high‐purity AlN at high yields. The Al/N/H/X/Y systems are examined, where X is any halide atom and Y is an inert gas. The effects of reactant ratio, temperature, and pressure on reactant conversion and product purity are estimated. Results from two systems are presented in the form of design diagrams, which represent the phases formed and the conversion achieved at various process conditions.
  • Biological Self-Arrangement of Fiber Like Aragonite and Its Effect on Mechanical Behavior of Veined rapa whelk Shell
    Item type: Journal Article
    Ji, Hong-Mei; Jiang, Yun; Yang, Wen; et al. (2015)
    Journal of the American Ceramic Society
    The microstructures of Veined rapa whelk shell were characterized, and a series of compression tests were carried out on the shell with the compressive loading direction making different angles (0°, 30°, 60° and 90°) with the shell spiral lines. Weibull analysis of the experiment results shows that the compressive strength is generally the highest for the sample with 0°‐orientation but the lowest for that with 60°‐orientation, which means that the strength shows an obvious anisotropy and the strongest orientation represents the direction parallel to the spiral lines of the shell. Such a phenomenon is closely related to the distinctive microscopic arrangements of different‐order aragonite lamellae. The interfaces of different‐level lamellae in the adjacent macro‐layers yield effects on the mechanical behavior of the shell in a coordinated fashion.
Publications1 - 10 of 58