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2,070 Newest Publications in journal of the american ceramic society
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The Reaction Mechanism and Kinetics of α‐BN Powder in Wet Air at 1273 K
18-05-2013 | Xinmei Hou, Ziyou Yu, Zhiyuan Chen, Kuo‐Chih Chou, Baojun Zhao, Journal of the American Ceramic Society, 2013
The reaction behavior of α‐Boron nitride (BN) powder in wet air was investigated at 1273K using thermogravimetric (TG) analysis, X‐ray diffraction (XRD), and mass spectrometry. Scanning electron microscopy and electron probe X‐ray microanalysis (EPMA) were used to analyze the morphological ...
Sintering of Multilayered Porous Structures: Part II–Experiments and Model Applications
18-05-2013 | De Wei Ni, Eugene Olevsky, Vincenzo Esposito, Tesfaye T. Molla, Søren P. V. Foghmoes, Rasmus Bjørk, Henrik L. Frands ..., Journal of the American Ceramic Society, 2013
Experimental analyses of shrinkage and distortion kinetics during sintering of bilayered porous and dense gadolinium‐doped ceria Ce0.9Gd0.1O1.95−δ structures are carried out, and compared with the theoretical models developed in Part I of this work. A novel approach is developed for the ...
Temperature Dependence of Ionic Conductivity of Ceria Electrolyte at Concentrated Range of Multiple Doping
13-05-2013 | Snigdha Panigrahi, Ramesh Chandra Biswal, Shahid Anwar, Laxmidhar Besra, Sarama Bhattacharjee, Journal of the American Ceramic Society, 2013
We study ionic conductivity of heavily doped ceria, doping level close to 50mol% with multiple lanthanides in the temperature range of 200°C–500°C. The doped ceria is found to be single fluorite phase, where unit cell is dilated to 0.5527nm, compared with pure ceria (0.5422nm). ...
Perovskite‐Structured BiFeO3–Bi(Zn1/2Ti1/2)O3–PbTiO3 Solid Solution Piezoelectric Ceramics with Curie Temperature About 700°C
13-05-2013 | Xianbo Hou, Jian Yu, Journal of the American Ceramic Society, 2013
In this article, perovskite‐structured BiFeO3–Bi(Zn1/2Ti1/2)O3–PbTiO3 (BF–BZT–PT) ternary solid solutions were prepared with traditional solid‐state reaction method and demonstrated to exhibit a coexistent phase boundary (CPB) with Curie temperature of TC~700°C in the form of ceramics with ...
Nanocomposites of Surface‐Modified BaTiO3 Nanoparticles Filled Ferroelectric Polymer with Enhanced Energy Density
13-05-2013 | Ke Yu, Yujuan Niu, Yongcun Zhou, Yuanyuan Bai, Hong Wang, Journal of the American Ceramic Society, 2013
We report nanocomposites of increased dielectric permittivity, enhanced electric breakdown strength and high‐energy density based on surface‐modified BaTiO3 (BT) nanoparticles filled poly(vinylidene fluoride) polymer. Polyvinylprrolidone (PVP) is used as the surface modification agent and ...
Phase Diagram and Properties of High TC/TR−T Pb(In1/2Nb1/2) O3–Pb(Zn1/3Nb2/3)O3–PbTiO3 Ferroelectric Ceramics
11-05-2013 | Tao Li, Xiuzhi Li, Dong Guo, Zujian Wang, Ying Liu, Chao He, Tao Chu, Liaodong Ai, Dongfang Pang, Xifa Long, Journal of the American Ceramic Society, 2013
A ternary ferroelectric ceramic system, (1−x−y)Pb(In1/2Nb1/2)O3–xPb(Zn1/3Nb2/3)O3–yPbTiO3 (PIN–PZN–PT, x=0.21, 0.27, 0.36, 0.42), was prepared using a two‐step precursor method. The phase structure, dielectric, piezoelectric, and ferroelectric properties of the ternary ceramics were ...
Numerical Modeling of the Side Flow in Tape Casting of a Non‐Newtonian Fluid
11-05-2013 | M. Jabbari, J. H. Hattel, Journal of the American Ceramic Society, 2013
One of the most common ways used to produce multilayer ceramics (MLC) is tape casting. In this process, the dried tape thickness is of great interest to control the desired products and applications. One of the parameters that influences the final tape thickness is the side flow factor (α) ...
“Metakaolin‐Slag‐Clinker Blends.” The role of Na+ or K+ as Alkaline Activators of Theses Ternary Blends
11-05-2013 | Ana Fernández‐ Jiménez, Fatima Zibouche, Nassima Boudissa, Ines García‐Lodeiro, Mohamed Tahar Abadlia, Angel Palomo, Journal of the American Ceramic Society, 2013
This article reports on research into the use of solid alkalis (Na2CO3 and K2CO3) as activators to obtain hybrid cement (cement whose hydration generates a mix of C–A–S–H and (N,C)–A–S–H gels) from a blend of 20% clínker+40% blast furnace slag+40% metakaolin. More specifically, the ...
Rheological Control of the Coffee Stain Effect for Inkjet Printing of Ceramics
11-05-2013 | A. Friederich, J. R. Binder, W. Bauer, Journal of the American Ceramic Society, 2013
The rheology of inkjet printing inks must be well controlled in order to be able to form small droplets. One solution is to use low volume fraction dispersed suspensions, but this leads to a common problem during drying called the coffee stain effect. It is caused by particle migration from ...
Thermal Expansion of Rare‐Earth Pyrosilicates
11-05-2013 | Alberto J. Fernández‐Carrión, Mathieu Allix, Ana I. Becerro, Journal of the American Ceramic Society, 2013
The use of RE2Si2O7 materials as environmental barrier coatings (EBCs) and in the sintering process of advanced ceramics demands a precise knowledge of the coefficient of thermal expansion of the RE2Si2O7. High‐temperature X‐ray diffraction (HTXRD) patterns were collected on different ...
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