Influence of Y2O3 Additive on Transparent of ALON Ceramics

摘要：

　　Transparent ALON ceramics with the ultra-fine γ-ALON spinel powder were prepared by hot-pressing.The powder was prepared by carbothermal reduction method.The optimum condition was hot-pressing between 1850 ℃ to 1920 ℃ for 3 ~ 5 h under 35 MPa.We got transparent samples Φ70 × 3 mm with in-line transmittance above 70% in the range from the visible to infrared wavelength.The effect of additive contents on transparency and the relation of microstructure and transparency have been discussed in this paper.The transmittance is good when the Y2O3 sintering additive content is 1.5wt%.The sample density is about 99% of its theoretical density.We also measured the flexural strength,elastic modulus and other mechanical properties of ALON.

关键词： ALON Additive Hot-pressing Transmittance

作者: Huawei Jiang Hongbing Du Tingyan Tian Hong Wu

作者单位: Research Institute of Synthetic Crystals, Beijing 100018, China; Beijing Sinoma Synthetic Crystals C Sinoma Equipment& Engineering Corp., Ltd, Beijing 100037, China

会议类型: 国际会议

会议名称: The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))

会议地点: 哈尔滨

会议语种:英文

页码: 580-581

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）