Yb_(0.005)Y_(0.708)Lu_(0.287)VO_4混晶的生长和材料性质(英文)  

Growth and Properties of Yb_(0.005)Y_(0.708)Lu_(0.287)VO_4 Mixed Crystal

作　　者：张炳涛[1,2] 滕冰[1,2] 钟德高[1,2] 曹丽凤[1,2] 李建宏[1,3] R.A.Rupp 

机构地区：[1]青岛大学物理科学学院,青岛266071 [2]山东省高校光子学材料与技术重点实验室(青岛大学),青岛266071 [3]青岛海泰光电技术有限公司,青岛266107 [4]南开大学泰达应用物理学院弱光非线性光子学教育部重点实验室,天津300457 [5]维也纳大学物理系,维也纳A-1090

出　　处：《人工晶体学报》2013年第3期408-412,共5页Journal of Synthetic Crystals

基　　金：National Natural Science Foundation of China(10979029,51172111,11204148);National Engineering Research Centerfor Optoelectronic Crystalline Materials(2007k08)

摘　　要：采用提拉法生长出Yb0.005Y0.708Lu0.287VO4晶体。在室温下,对Yb0.005Y0.708Lu0.287VO4晶体进行了XRPD测试,计算了晶格常数(a=b=0.7091 nm,c=0.6273 nm)和密度(4.826 g/cm3)。对混晶的(100)面进行了腐蚀,腐蚀坑呈四棱锥形状。平均线膨胀系数α1=1.285×10-6K-1,α3=7.030×10-6K-1,温度在330.15 K和570.15 K之间变化时,比热为0.494～0.617J/g·K。A mixed Yb0.005 Y0.708 LH0. 287 V04 crystal was produced by the Czochralski method. X-ray powder diffraction （XRPD） was performed at room temperature. The lattice parameters and the crystal density were a = b =0. 7091 nm, c =0. 6273 nm and p =4. 826 g/cm3, respectively. Samples with （100） plane were used for etching experiments and exhibit etching pits of pyramidal shape. The average linear expansion coefficients are α1 = 1. 285 × 10^-6 K^-1 and α3 = 7. 030 × 10^-6 K^-1. The specific heat is 0. 494-0. 617 J/g · K in the temperature range from 330.15 K to 570.15 K.

关 键 词：钒酸盐晶体 腐蚀坑 膨胀系数 比热 热导率 

分 类 号：TQ534.2[化学工程—煤化学工程]