氘含量对K(H_(1-x)D_x)_2PO_4晶体结构及完整性的影响  

Influence of deuterium content on structure and crystalline perfection of K(H_(1-x)D_x)_2PO_4 crystal

作　　者：刘文洁[1] 丁建旭[1] 牟晓明 刘光霞[1] 孙云[1] 刘琳[1] 王圣来[1] 顾庆天[1] 

机构地区：[1]山东大学晶体材料国家重点实验室,山东济南250100 [2]中国兵器工业第52研究所烟台分所,山东烟台264003

出　　处：《功能材料》2013年第21期3122-3125,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51021062;51202131)

摘　　要：采用传统降温法生长了一系列的K(H1-x Dx)2PO4晶体。粉末X射线衍射(XRD)证明氘化后晶体的对称性并没有发生改变,晶胞参数a随氘含量的增加而增大,参数c则小幅度增大。对晶体的高分辨X射线衍射研究,结果表明KDP-DKDP混晶中,D取代部分的H原子对晶体的结晶完整性影响较小。A serials of K（H1-xDx）2PO4 crystals were grown by using traditional method from deuterated solu- tions. From the results of powder X-ray diffraction （XRD）, it shows that the no changes occurred on symmetry of structure in K（H1- xDx ）2PO4 crystals, while lattice parameter a increases with a increase of deuterium con- tent of crystal. High resolution XRD was taken to characterize crystalline perfection. It was indicated that crys- talline perfection was destroyed slightly by the replacement of partial H atoms by D atoms in KDP-DKDP mixed crystals.

关 键 词：K(H1-xDx)2PO4晶体 粉末X射线衍射 晶胞参数 高分辨X射线衍射 结晶完整性 

分 类 号：O782[理学—晶体学] O723