MSnF4 (M = Pb++, Ba++, Sr++) : Thermal expansion and phase transitions
MSnF4 (M = Pb++, Ba++, Sr++) : Thermal expansion and phase transitions
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MSnF4 (M = Pb , Ba , Sr ) : 热膨胀和相变
DOI：
10.1016/0025-5408(79)90045-x
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
J. Lucas
中科院分区：
文献类型：
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作者：
J. Pannetier;G. Dénès;J. Lucas
测量了PbSnF4、BaSnF4和SrSnF4在液氮温度至400° C范围内的晶胞参数。PbSnF 4在260°和380° C下经历两次相变。其中一个新相（β）可以淬火至室温。所有这三个阶段的结构相关的萤石。我们的大多数结果与最近的出版物（材料冲突。保留牛，13，877（1978））。
The unit-cell parameters of PbSnF 4, BaSnF 4 and SrSnF 4 were measured from liquid N 2 temperature up to 400° C. PbSnF 4 undergoes two phase transitions at∼ 260° and 380° C. One of the new phases (β) can be quenched to room temperature. All three phases have structures related to that of fluorite. Most of our results conflict with recent publication (Mat. Res. Bull., 13, 877 (1978)).