Faurie D, Girodon-Boulandet N, Kaladjian A, Challali F, Abadias G, Djemia P
LSPM-CNRS, Université Paris 13, Sorbonne Paris Cité, 93430 Villetaneuse, France.
LPL, UMR7538, Université Paris 13, Sorbonne Paris Cité, 93430 Villetaneuse, France.
Rev Sci Instrum. 2017 Feb;88(2):023903. doi: 10.1063/1.4975637.
A setup combining surface Brillouin light scattering with a high-temperature chamber has been developed. The temperature of the sample is controlled with a Bühler HDK chamber for optical measurements (maximum temperature of 1600 °C), in controlled atmospheres or high vacuum (10 mbar). This setup allows the study of sound velocity of surface acoustic waves and of the elastic constants of opaque thin films and coatings in situ as a function of temperature from surface Brillouin light scattering, by analyzing the backscattered light from the sample at a fixed angle of incidence. In this paper, we will demonstrate the applications of this setup for metallic glass thin films devitrification study and evaluation of high temperature elastic properties of hard nitride coatings. This kind of study using surface acoustic waves is rare, in contrast to those made on transparent bulk materials.
已开发出一种将表面布里渊光散射与高温腔相结合的装置。样品温度由用于光学测量的布勒HDK腔控制（最高温度为1600°C），可在可控气氛或高真空（10毫巴）环境下进行。通过在固定入射角下分析样品的背向散射光，该装置能够原位研究表面声波的声速以及不透明薄膜和涂层的弹性常数随温度的变化。在本文中，我们将展示该装置在金属玻璃薄膜析晶研究以及硬氮化物涂层高温弹性性能评估方面的应用。与对透明块状材料的研究相比，这种利用表面声波的研究较为少见。
