摘要
通过腐蚀形貌和XRD摇摆曲线,观察到了垂直和平行于Ce:YAP[010]方向的两组晶面内存在的小角度晶界(镶嵌结构间界),根据SEM形貌估算出(010)面内小角晶界的夹角为51”;四晶XRD摇摆曲线的结果表明,平行于[010]向的晶面内小角晶界的夹角为58”;摇摆曲线的半峰宽为54”,根据Darwin理论算出理想晶体的半峰宽为17”,并由此分析了晶体的完整性.
Two kinds of low-angle boundary (mosaic structure) in Ce:YAP were observed by etching figures and rocking-curve. From SEM figure, the boundary angle on (010) plane estimated is 51'. The rocking-curve by four-crystal high-resolution XRD shows that the boundary angle on the plane paralleled with [010] is 58'. The FWHM (Full Width-Half Maximum) of rocking-curve is 54', and the one of ideal YAP crystal calculated out is 17' according to Darwin's theory. The integrality of Ce:YAP sample was analyzed on the basis of these result.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第5期1186-1190,共5页
Journal of Inorganic Materials
关键词
Ce:YAP晶体
闪烁晶体
小角晶界
Ce : YAP crystal
scintillating crystal
low-angle boundary
