摘要
本文报导了用金属醇盐法制备高纯、超细铝酸镁粉末的合成工艺和透明铝酸镁陶瓷的制备工艺。测试了铝酸镁的光学性能、物理和机械性能。结果表明，作为光学材料，透明铝酸镁具有非常好的机械强度和硬度，有适中的热膨胀系数，在０．３－０．５μｍ波段范围，其透过率不低于８１％，在３－５μｍ波段范围，其透过率达到８７％。
Ultrafine and high purity MgAl2O4 Powder was prepared by decomposing alkoxide method and transparent MgAl2O4 was fabricated by hot-pressing high purity starting Powders. Optical,physical and mechanical properties of Mgal2O4 ceramics have been measured. Results show that transparent MgAl2O4 is exceptionally strong and hard for an optical material, has a moderatethermal expansion coefficient, a transmittance at least 81 % in the wavelength range from 0. 3 to0 .5μm and a transmittance up to 87 % in the wavelength range from 3 .0 to 5 .0μm.
出处
《人工晶体学报》
EI
CAS
CSCD
1996年第2期108-112,共5页
Journal of Synthetic Crystals
基金
国家"八五"攻关项目
关键词
红外光学材料
铝酸镁陶瓷
超细粉末
制备
陶瓷
IR optical material
transparent MgAl_2O_4 ceramic
transmission
ultrafine Powder
microstructure
hot-pressing technique
