期刊
MATERIALS RESEARCH BULLETIN
卷 37, 期 1, 页码 77-83出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0025-5408(01)00800-5
关键词
fluorides; X-ray diffraction; phase transitions
Synchrotron powder diffraction has been used to examine the crystal structure of the TiF3 between 20 and 450 K with emphasis on the cubic to rhombohedral structural phase transition near 370 K. This transition involves an apparently continuous reduction in the tilts of the TiF6 octahedra. A remarkable difference in the thermal expansion coefficients in the two phases is observed. (C) 2002 Elsevier Science Ltd. All rights reserved.
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