2010 Processing Science Archives | The American Ceramic Society

2010 Processing Science

The Effect of Polyvinyl Alcohol on the Microstructure and Permeability of Freeze-Cast Alumina

By / January 26, 2010

Volume 93 Issue 1, Pages 115 – 120 Christopher Peko, Ben Groth, Ian NettleshipPublished Online: Nov 11 2009 2:41PMDOI: 10.1111/j.1551-2916.2009.03398.x ABSTRACT Content, content, content This study examined the effect of polyvinyl alcohol (PVA) on the microstructure and permeability of freeze-cast porous alumina. The PVA addition was shown to have a significant effect on the pore…

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Preparation of Transparent Glass Sponges via Replica Method using High-Purity Silica

By / January 26, 2010

Volume 93 Issue 1, Pages 111 – 114 Preparation of Transparent Glass Sponges via Replica Method using High-Purity Silica (p 111-114)Ethel Claudia Bucharsky, Karl Günter Schell, Reiner Oberacker, Michael J. HoffmannPublished Online: Oct 29 2009 6:04PMDOI: 10.1111/j.1551-2916.2009.03366.x ABSTRACT A polymer sponge replication technique was used to prepare open-celled transparent glass sponges. Stabilized high concentration aqueous…

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Fast and Almost Complete Nitridation of Mesoporous Silica MCM-41 with Ammonia in a Plug-Flow Reactor

By / January 26, 2010

Volume 93 Issue 1, Pages 104 – 110 Fumitaka Hayashi, Ken-ichi Ishizu, Masakazu IwamotoPublished Online: Oct 29 2009 4:22PMDOI: 10.1111/j.1551-2916.2009.03375.x ABSTRACT The title reaction proceeded well to yield silicon (oxy)nitride at 973-1323 K using a plug-flow reactor. The degree of nitridation was studied as a function of temperature and time of nitridation, the sample weight,…

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An In Situ Approach to Create Porous Ceramic Membrane: Polymerization of Acrylamide in a Confined Environment

By / January 26, 2010

Volume 93 Issue 1, Pages 96 – 103 Xinwei Chen, Liang HongPublished Online: Oct 23 2009 10:54AMDOI: 10.1111/j.1551-2916.2009.03373.x ABSTRACT A new processing method for the fabrication of porous ceramic membrane has been developed via a three-step procedure: by uniformly distributing a solid vinyl monomer (e.g., acrylamide) into a green object of ceramic through wet chemistry…

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Iron Nanoparticle-Containing Silicon Carbide Fibers Prepared by Pyrolysis of Fe(CO)5-Doped Polycarbosilane Fibers

By / January 26, 2010

Volume 93 Issue 1, Pages 89 – 95 Xiaojun Chen, Zhiming Su, Li Zhang, Ming Tang, Yuxi Yu, Litong Zhang, Lifu ChenPublished Online: Oct 29 2009 4:20PMDOI: 10.1111/j.1551-2916.2009.03369.x ABSTRACT Silicon carbide (SiC) fibers are prepared using an iron-containing polycarbosilane (Fe-PCS) as the precursor. Iron pentacarbonyl [Fe(CO)5] is first reacted with low-molecular-weight liquid PCS to form…

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Effect of Europium Concentration on Densification of Transparent Eu:Y2O3 Scintillator Ceramics Using Hot Pressing

By / January 26, 2010

Volume 93 Issue 1, Pages 82 – 88 Stephen R. Podowitz, Romain Gaumé, Robert S. FeigelsonPublished Online: Oct 20 2009 1:34PMDOI: 10.1111/j.1551-2916.2009.03350.x ABSTRACT Europium (Eu) was found to act as a solid-state sintering aid in Y2O3 optical ceramics by controlling ionic diffusivity, which in turn leads to enhanced optical transparency. Transparent ceramic samples of Eu-doped…

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Constrained Sintering of a Glass Ceramic Composite: I. Asymmetric Laminate

By / January 26, 2010

Volume 93 Issue 1, Pages 74 – 81 Jean-Baptiste Ollagnier, Olivier Guillon, Jürgen RödelPublished Online: Oct 2 2009 12:22PMDOI: 10.1111/j.1551-2916.2009.03346.x ABSTRACTThe camber of asymmetric laminates has been experimentally measured and predicted. Two cases are distinguished: (i) sintering of a viscous layer on a viscous substrate and (ii) sintering of a viscous layer on an elastic…

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Synthesis and Characterization of Cerium Molybdate Nanocontainers and Their Inhibitor Complexes

By / January 25, 2010

Volume 93 Issue 1, Pages 65 – 73 Ioannis A. Kartsonakis, George KordasPublished Online: Oct 29 2009 4:19PMDOI: 10.1111/j.1551-2916.2009.03310.x ABSTRACT Cerium molybdate nanocontainers were synthesized using a two-step process and then loaded with 8-hydroxyquinoline (8-HQ) or with 1-H-benzotriazole-4-sulfonic acid (1-BSA). First, polystyrene (PS) nanospheres were produced using emulsion polymerization. Second, the PS spheres were coated…

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Peptization of Nanoparticulate Titania Sols Prepared Under Different Water–Alkoxide Molar Ratios

By / January 25, 2010

Volume 93 Issue 1, Pages 59 – 64 María T. Colomer, Javier Guzmán, Rodrigo MorenoPublished Online: Oct 14 2009 11:41AMDOI: 10.1111/j.1551-2916.2009.03294.x ABSTRACT Particulate titania sols with water-alkoxide molar ratios (r) of r=30:1 ([Ti4+]=1.146M), r=50:1 ([Ti4+]=0.818M), r=75:1 ([Ti4+]=0.579M), and r=100:1 ([Ti4+]=0.459M), have been synthesized. Both hydrolysis and peptization temperatures were maintained at 35°C in all cases.…

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