Inorganic Materials ( IF 0.9 ) Pub Date : 2020-09-21 , DOI: 10.1134/s0020168520090113 S. V. Kuznetsov , V. A. Konyushkin , A. N. Nakladov , E. V. Chernova , P. A. Popov , A. A. Pynenkov , K. N. Nishchev , P. P. Fedorov
Abstract
Single crystals of Ca1 – ySryRхF2 + х (R = Ho, Pr) solid solutions with high optical quality have been grown by the Bridgman technique in vacuum using a fluorination atmosphere. The thermal conductivity of the Ca0.60Sr0.40 – хHoхF2 + х solid solutions decreases from 3.27 to 2.37 W/(m K) as the fraction of holmium rises from 0 to 3 mol %, respectively. The room-temperature thermal conductivity of the Ca0.50Sr0.50 – хPrхF2 + х solid solutions decreases from 3.38 to 2.18 W/(m K) as the fraction of praseodymium rises from 0 to 8 mol %, respectively. Increasing the holmium and praseodymium content of the ternary solid solutions leads to a gradual increase in their refractive index. With increasing wavelength, the refractive index gradually decreases.
中文翻译:
CaF 2 -SrF 2 -RF 3(R = Ho,Pr)萤石固溶体单晶体的热物理性质
摘要
钙单晶1 - ý锶ý ř х ˚F 2 + х(R =何,PR)具有高光学质量的固溶体已经通过使用氟化气氛中真空Bridgman技术生长。钙的热传导率0.60锶0.40 - х何х ˚F 2 + х固溶减小从3.27到2.37 W /(米K)作为钬的分数分别上升为0〜3摩尔%。的室温导热性钙0.50锶0.50 - х镨х ˚F 2 + х随着的比例分别从0摩尔%增加到8摩尔%,固溶体从3.38降低到2.18 W /(m K)。三元固溶体中the和ase含量的增加导致其折射率逐渐增加。随着波长的增加,折射率逐渐降低。