摘要
采用提拉法生长了Nd:Ca_5(PO_4)_3F晶体。用扫描电镜和电子探针对夹杂物进行了分析。分析表明,晶体中的夹杂物是由组分过冷引起的富磷缺氟相组成的。提出了形成夹杂物的原因及消除办法。
Neodymium doped calcium fluorophosphate(Nd:Ca_5(PO_4))_3 F crystals have been grown by the CZ technique. Main inclusions in the crystals have been analysed with SEM and EPMA (electronic probe microanalysis).The analysed result show that in Nd :Ca_5 (PO_4 )_3F crystal inclusions are composed of phase of purplus phosphorus and lack iron. Which arises from constitutional supercooling in crystal growth.The formation mechanism and elimination of the inclusions are proposed.
出处
《人工晶体学报》
EI
CAS
CSCD
1994年第3期202-206,共5页
Journal of Synthetic Crystals
基金
国家863高科技资助
关键词
夹杂物
激光晶体
钕
氟磷酸钙
laser materials
crystal pulling
Ca_5(PO_4 )_3F
inclusions
scaning electron microscope(SEM)
electronic probe microanalysis(EPMA)