期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 27, 期 5, 页码 2163-2169出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2006.07.007
关键词
thermal expansion; sialon; spinel-sialon; Si3N4
The thermal expansion behaviour of a high pressure-derived spinet sialon (gamma-Si3-xAlxOxN4-x) with a single composition x = 1.1 (and its low-pressure pendant with beta-Si3N4 structure) was studied between room temperature and 1220 degrees C, using X-ray diffraction at a synchrotron radiation source and a halogen mirror furnace. No evidence for a phase transformation or decomposition of the spinel-sialon was found, thus demonstrating a good metastability of this novel hard material. (c) 2006 Elsevier Ltd. All rights reserved.
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