摘要
在不添加任何烧结助剂的前提下，采用高纯Al2O3和AlN微粉为原料，20MPa干压成型后在氮气氛下，1900℃常压烧结1h制备出透明氮氧化铝（AION）陶瓷。结果表明，透明AlON陶瓷晶粒发育完善且分布均匀，晶界平直光滑且无第二相的存在。其在紫外、可见光区（190-1100mm）最大透光率为75％，密度为3．70g／cm3，三点弯曲强度为201MPa。
With highly pure Al2O3 and AIN powders and without sintering additives, transparent AlON ceramics were obtained by using pressure less sintering at 1 900 ℃ for 1 h. The result of experiments indicates that the AION transparent ceramics have uniform grain distribution, and no secondary phrases. The total-transmittance in ultraviolet ray area （190--1 100 nm） is up to 75%. The density and three-point bending strength are 3.70 g/cm^3 and 201 MPa.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2009年第19期31-33,共3页
Journal of Wuhan University of Technology
基金
国家高技术研究发展计划(2001AA333040)
关键词
常压烧结
氮氧化铝
透明陶瓷
透过率
presureless sintering
aluminum oxynitride
transparent ceramics
transmittance
