【摘要】 针对热锻纯ＫＣｌ晶体中存在的晶粒长大和二次再结晶问题进行了ＫＣｌ：Ｓｒ￣（２＋）单晶的热锻研究。结果表明，锻压温度和润滑剂的选择是晶体锻压成功的关键因素；晶体应力应变曲线呈两阶段硬化特点；适当的掺杂浓度范围是（２５～４０）×１０￣（－６）ｗｔ－％。作者以３６０℃锻压温度，５０％锻压比成功地锻压出Φ８５×（１０～１５）ｍｍ的ＫＣｌ：Ｓｒ￣（２＋）晶体，并对其锻压前后的机械和光学性能进行了对比测试。更多还原

【Abstract】 Press forging of KCl:Sr￣(2+) single crystals was carried out to suppress grain growth and secondary recrystallization in pure hot-worked KCl crystal The results indicated that the selection of forging temperature and lubricating-oil is the most important factor for forging process. The stress-strain curves were characterized by two hardening stages. The reasonable Sr￣(2+) content is (25～40)×10￣(-6)wt-%.A transparent forged KCl:Sr￣(2+) crystal 85mm in diameter and 10～15mm thickness was obtained at forging temperature of 360℃ and forging ratio of 50%. Before and after forging, the mechanical and optical properties of crystals were measured.更多还原