高温高压处理对褐色CVD钻石谱学特征影响分析  

Effect of High-Temperature High-Pressure Treatment on Spectral Characteristics of Brown CVD Diamond

作　　者：张海棠 Zhang Hai-tang(Experimental Testing Brigade,Jiangxi Bureau of Geology,Nanchang 330000,Jiangxi Province,China)

机构地区：[1]江西省地质局实验测试大队,江西南昌330000

出　　处：《科学与信息化》2023年第21期147-149,共3页Technology and Information

摘　　要：CVD合成钻石是超硬材料科学的一项研究热点,该类钻石普遍带有褐色调,在高温高压下可提升CVD钻石的透明度与色级,处理后通过显微镜、红外光谱、光致发光光谱等对钻石谱学特征进行对比,可发现CVD钻石透明度有所提高,光谱吸收系数降低,认为是钻石在高温高压环境下内部晶格结构发生重组,钻石拉曼位移情况与XRD摇摆曲线有所减小,实验证明经过高温高压的处理可提升CVD钻石的结晶质量。CVD synthetic diamond is a research hotspot in superhard material science,such diamond generally has brown hue,and the transparency and color level of CVD diamond can be improved under high temperature and high pressure.After treatment,the spectral characteristics of diamond are compared through microscopy,infrared spectroscopy,and photoluminescence spectroscopy.Results show that CVD diamond transparency is improved,spectral absorption coefficient is reduced,which is considered that the internal lattice structure of diamond in high temperature and high pressure environment is recombined,and the diamond Raman displacement and XRD swing curve are reduced.Experiments demonstrate that the crystallization quality of CVD diamonds can be improved by high temperature and high pressure treatment.

关 键 词：高温高压 褐色CVD钻石 结晶结构 谱学特征 

分 类 号：TS9[轻工技术与工程]