Syntheses and crystal structures of Ge-bearing layered carbides Zr_2Al_4C_5 and Zr_3Al_4C_6
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概要
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Two types of new quaternary carbide solid solutions, (ZrC)_2Al_3[Al_<1-x>Ge_x]C_3 (x=0.07) and (ZrC)_3Al_3[Al_<1-y>Ge_y]C_3 (y=0.04), have been synthesized and characterized using a laboratory X-ray powder diffractometer (XRPD) and a transmission electron microscope (TEM) equipped with an energy dispersive X-ray analyzer (EDX). With the former carbide, the layered structure was imaged by TEM and the solubility of Ge in the crystal was confirmed by EDX. The crystal structures of both carbides were refined by the Rietveld analysis of the XRPD data. These carbides have been found to form a homologous series with the general formula (ZrC)_mAl_3[Al_<1-z>Ge_z]C_3 (0≤z≤0.07), where m=2 and 3. The crystal structures can be regarded as intergrowth structures, consisting of the NaCl-type [Zr_mC_<m+1>] slabs separated by the Al_4C_3-type [Al_<4-Z>Ge_zC_4] layers.
- 社団法人日本セラミックス協会の論文
- 2009-01-01
著者
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NAKANO Hiromi
Electron Microscope Laboratory, Faculty of Science and Technology, Ryukoku University
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HASHIMOTO SHINOBU
Department of Environmental and Materials Engineering, Nagoya Institute of Technology
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Hashimoto Shinobu
Department Of Environmental And Materials Engineering Nagoya Institute Of Technology
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Nakano Hiromi
Cooperative Res. Facility Center Toyohashi Univ. Of Technol.
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Nakano Hiromi
Electron Microscope Laboratory Faculty Of Science And Technology Ryukoku University
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Nakano Hiromi
Department Of Neurosurgery Kyoto Kizugawa Hospital
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IWATA Tomoyuki
Department of Environmental and Materials Engineering, Nagoya Institute of Technology
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SUGIURA Keita
Department of Environmental and Materials Engineering, Nagoya Institute of Technology
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FUKUDA Koichiro
Department of Environmental and Materials Engineering, Nagoya Institute of Technology
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Fukuda Koichiro
Department Of Environmental And Materials Engineering Nagoya Institute Of Technology
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Sugiura Keita
Department Of Environmental And Materials Engineering Nagoya Institute Of Technology
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SUNADA Naohiro
Department of Environmental and Materials Engineering, Nagoya Institute of Technology
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Sunada Naohiro
Department Of Environmental And Materials Engineering Nagoya Institute Of Technology
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Iwata Tomoyuki
Department Of Environmental And Materials Engineering Nagoya Institute Of Technology
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Hashimoto Shinobu
Department Of Environmental Materials And Engineering Nagoya Institute Of Technology
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Sunada Naohiro
Electron Microscope Laboratory, Ryukoku University
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Nakano Hiromi
Sumitomo Electric Industries, Ltd.
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