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4.296 Aktuelle Fachpublikationen in Journal of the American Ceramic Society

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Improving high power properties of PZT ceramics by external DC bias field

19.01.2018 | Anushka Bansal, Husain N. Shekhani, Maryam Majzoubi, Eberhard Hennig, Timo Scholehwar, Kenji Uchino, Journal of the American Ceramic Society, 2018

Abstract This paper concludes that the deterioration of the mechanical quality factor Qm when operated under high power, can be recovered by externally applying positive DC bias field. Material constants for piezoelectric ceramics are generally characterized under low power conditions. ...

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Low‐temperature synthesis of uranium monocarbide by a Pechini‐type in‐situ polymerizable complex method

19.01.2018 | Hangxu Guo, Jieru Wang, Jing Bai, Shiwei Cao, Denglei Chen, Yalou Sun, Xiaojie Yin, Wei Tian, Cunmin Tan, Zhi Qin, Q ..., Journal of the American Ceramic Society, 2018

Abstract Uranium monocarbide (UC) was successfully synthesized by the Pechini‐type in‐situ polymerizable complex technique (IPC) with the organic matter as the only carbon source. In the aqueous process, a mixture of citric acid (CA) and mannitol with UO22+ was polymerized to form a ...

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Structural dependence of crystallization in glasses along the nepheline (NaAlSiO4) ‐ eucryptite (LiAlSiO4) join

19.01.2018 | José Marcial, Joey Kabel, Muad Saleh, Nancy Washton, Yaqoot Shaharyar, Ashutosh Goel, John S. McCloy, Journal of the American Ceramic Society, 2018

Abstract Lithium and sodium aluminosilicates are important glass‐forming systems for commercial glass ceramics, as well as being important model systems for ion transport in battery studies. Additionally, uncontrolled crystallization of LiAlSiO4 (eucryptite) in high‐Li2O compositions, ...

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Non‐isothermal crystallization kinetics of Al2O3‐YAG amorphous ceramic coating deposited via plasma spraying

19.01.2018 | Jian Rong, Kai Yang, Yin Zhuang, Xinghua Zhong, Huayu Zhao, Jinxing Ni, Shunyan Tao, Liang Wang, Chuanxian Ding, Journal of the American Ceramic Society, 2018

Abstract Crystallization kinetics of the newly developed Al2O3‐Y3Al5O12 (YAG) amorphous ceramic coating fabricated by atmospheric plasma spraying (APS) were investigated via differential scanning calorimetry (DSC) under non‐isothermal conditions. The phase compositions and microstructure of ...

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Investigation of phase composition and microwave dielectric properties of MgO‐Ta2O5 ceramics with ultra‐high Qf value

19.01.2018 | Mingzhao Dang, Haishen Ren, Xiaogang Yao, Haiyi Peng, Tianyi Xie, Huixing Lin, Lan Luo, Journal of the American Ceramic Society, 2018

Abstract Four MgO‐Ta2O5 ceramics with the MgO/Ta2O5 mole ratio x=1, 2, 3 and 4 were prepared by traditional solid state reaction method, and the influence of x on the phase composition, microstructure and dielectric properties (the dielectric constant εr, the temperature coefficient of ...

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Cationic effect of charge compensation on the sulfide capacity of aluminosilicate slags

19.01.2018 | Joon Sung Choi, Youngjoo Park, Sunghee Lee, Dong Joon Min, Journal of the American Ceramic Society, 2018

Abstract The effect of CaO on the sulfide capacity of CaO‐Al2O3‐SiO2 slags was studied from the viewpoint of the ionic structure of alumina in slag. The aluminum coordination number was analyzed using 27Al 500‐MHz solid nuclear magnetic resonance spectroscopy and the results were compared with ...

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Preparation of Homogeneous Mullite Based Fibrous Ceramics by Starch Consolidation

19.01.2018 | Wenjie Zang, Tao Jia, Xue Dong, Jiachen Liu, Haiyan Du, Feng Hou, Anran Guo, Journal of the American Ceramic Society, 2018

Abstract Silica sol is one of the frequently‐used binders in high‐temperature resisting fibrous porous ceramics, but in the drying process, it can diffuse with water and influence the uniformity of ceramics. To solve this diffusion problem and fabricate homogeneous fibrous porous ceramics, ...

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Influence of calcium additions on the compressive strength and microstructure of alkali‐activated ceramic sanitary‐ware

19.01.2018 | L. Reig, L. Soriano, M.M. Tashima, M.V. Borrachero, J. Monzó, J. Payá, Journal of the American Ceramic Society, 2018

Abstract The ceramic sanitary‐ware market generates large amounts of waste, both during the production process and due to construction and demolition practices. In this paper, the effect of different amounts and calcium sources (calcium hydroxide Ca(OH)2, calcium aluminate cement CAC, Portland ...

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Generation of Hydrogen under visible light irradiation with enhanced photocatalytic activity of Bi2WO6/Cu1.8Se for organic pollutants under Vis‐NIR light reign

16.01.2018 | Li‐Na Qiao, Huan‐Chun Wang, Yi‐Dong Luo, Hao‐Min Xu, Junping Ding, Shun Lan, Yang Shen, Yuan‐Hua Lin, Ce‐Wen Nan, Journal of the American Ceramic Society, 2018

Abstract To make better use of solar light, a new Bi2WO6 /Cu1.8Se photocatalyst active to visible and near‐infrared light has been synthesized by a facile hydrothermal method. The composites were characterized by X‐ray diffractometry (XRD), scanning electron microscopy (SEM), UV‐vis diffuse ...

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Intriguing role of TiO2 in glass–ceramics: Bioactive and magneto‐structural properties

15.01.2018 | Satwinder Singh Danewalia, K. Singh, Journal of the American Ceramic Society, 2018

Abstract We report on the structural, magnetic and bioactive properties of TiO2 modified silicate glasses. Additions of TiO2 and heat treatment, shows remarkable and distinguishable effect on the properties of the glasses. Growth of titania–modified magnetic nanocrystals played effective role ...

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