摘要
采用HTEM,NMR以及红外光谱技术,研究适宜半导体微晶掺杂的Sm3+掺杂碱硼硅酸盐基础玻璃在热处理过程中,玻璃结构的变化特点。研究结果表明,含Sm3+基础玻璃失透的主要原因在于在热作用下玻璃中[SiO4]4-以及[BO4]4-四面体结构首先分解形成了富硅相以及富硼相,稀土Sm3+则富集到富硼相中,并进一步析出了硼酸钐晶体;通过优化玻璃的组成能够改进基础玻璃的热稳定性。
For the purpose of establishing optimal heat-treating rules for semi-conducting crystal growth,the devitrification structure of Sm^(3+) doped alkali zinc borosilicate glass was analyzed by NMR,TEM and FT-IR. It is shown that the devitrification of basic glass is caused by phase separation of basic glass under the heating effect. During the boron phase separated from silicon phase, Sm^(3+)entered the boron-rich phase and the SmBO_3 crystals formed subsequently.The stability of basic glass can be improved by optimizing its composition.
出处
《玻璃与搪瓷》
CAS
北大核心
2004年第1期15-18,共4页
Glass & Enamel
基金
江苏省"333工程"资助项目
教育部优秀青年骨干教师基金资助项目(教技司[2000]65)。
