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Diffusion of chromium in zinc chalcogenides during hot isostatic pressing
Optical Materials ( IF 3.9 ) Pub Date : 2021-05-26 , DOI: 10.1016/j.optmat.2021.111200
V.B. Ikonnikov , Т.V. Kotereva , D.V. Savin , Е.М. Gavrishchuk

The diffusion of chromium impurities in zinc chalcogenides (ZnS, ZnSe) during hot isostatic pressing (HIP) in the temperature range T = 1000–1330 °C and pressures P = 100–190 MPa has been investigated. The chromium concentration and its distribution over the sample volume with a step from 5 to 50 μm was determined by FTIR spectroscopy in combination with an IR microscope. The diffusion coefficients of Cr in ZnS and ZnSe at various temperatures and pressures were determined. The diffusion coefficients of Cr at 1300 °C were (7.0 ± 0.3) × 10−8 cm2/s in ZnSe and (3.4 ± 0.4) × 10−8 cm2/s in ZnS. It is shown that the temperature dependences are described by the Arrhenius equation, and the isostatic pressure does not affect the value of the diffusion coefficients.



中文翻译:

热等静压过程中硫属锌化物中铬的扩散

已经研究了在温度为T = 1000–1330°C和压力P = 100–190 MPa的热等静压(HIP)过程中铬杂质在硫属硫化锌(ZnS,ZnSe)中的扩散。通过FTIR光谱结合IR显微镜确定铬浓度及其在样品体积中的分布(步长为5至50μm)。确定了在不同温度和压力下Cr在ZnS和ZnSe中的扩散系数。Cr在1300°C时在ZnSe中的扩散系数为(7.0±0.3)×10 -8  cm 2 / s和(3.4±0.4)×10 -8  cm 2/ s在ZnS中 结果表明,温度依赖性由Arrhenius方程描述,并且等静压不影响扩散系数的值。

更新日期:2021-05-26
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