Elastic light scattering and birefringence measurements in the coexistence state of α and β quartz
Elastic light scattering and birefringence measurements in the coexistence state of α and β quartz
复制标题
α和β石英共存状态下的弹性光散射和双折射测量
DOI：
10.1016/0022-3697(79)90029-5
复制
发表时间：
1979
影响因子：
4
通讯作者：
G. Doling
中科院分区：
文献类型：
--
作者：
G. Doling
本文介绍了在573°C左右石英中α相和β相共存所产生的异相结构中光散射的新的光学测量方法，同时用光学显微镜进行了观测。描述了在加热和冷却温度循环下，晶体中始终保留两相的异相结构变化，观察到一相在另一相中的形核，并给出了相关的直角和小角散射效应。在垂直于光轴的平面中的双折射率被测量为晶体中的温度和位置的函数，清楚地示出了在异相状态中诱导应力的存在。
New optical measurements of light scattering in the heterophase structure produced by the coexistence of α and β phases in quartz around 573°C, with simultaneous observations by optical microscopy, are presented. The heterophase structure variations are described in a heating and cooling temperature cycle with the two phases always remaining in the crystal.Nucleations of one phase in the other are observed, and the associated effects on right angle and small angle scatterings are presented. Birefringence in the plane perpendicular to the optical axis was measured as a function of temperature and position in the crystal, showing clearly the existence of induced stresses in the heterophase state.