有色金属材料与工程2024，Vol.45Issue(3)：18-23,6.DOI:10.13258/j.cnki.nmme.20240418001
镁硅氧化物助剂对AlON陶瓷光学和力学性能影响
Effects of Mg-Si oxide sintering aids on the optical and mechanical properties of AlON ceramics
摘要
Abstract
In this paper,home-made γ-AlON powder prepared by the carbothermal reduction method was used as the starting material to fabricate AlON transparent ceramics by pressureless sintering in a nitrogen atmosphere(holding at 1 860 ℃)combined with hot isostatic pressing(HIP)technology(1 800 ℃).For the first time,metal oxide MgO-SiO2 was used as a sintering aid.As a result,AlON ceramics with excellent optical and mechanical properties were successfully prepared.The results showed that when the doping mass fraction of MgO is 0.1％,the transmittance of AlON ceramics increased as the amount of SiO2 doping increased.The transmittance of AlON ceramics(5 mm thick)co-doped with 0.1％MgO+0.5％SiO2 reached 83.6％at 1 000 nm and 85.7％at 2 500 nm.The flexural strength of the AlON ceramic was tested using the three-point bending method,achieving a value of 306.3 Mpa.Compared to traditional MgO-Y2O3 additives,MgO-SiO2 additives not only maintain the excellent optical performance of the ceramics but also result in a finer grain structure,thus demonstrating superior mechanical properties.关键词
MgO-SiO2/AlON陶瓷/透过率/力学性能Key words
MgO-SiO2/AlON ceramics/transmittance/mechanical properties分类
通用工业技术引用本文复制引用
褚献献,李翔,毛小建,章健,王士维..镁硅氧化物助剂对AlON陶瓷光学和力学性能影响[J].有色金属材料与工程,2024,45(3):18-23,6.基金项目
国家自然科学基金资助项目(52072245 （）
52130207 （）
52272076) （）
