SBIR Phase I: High Performance Transparent AlON via Novel Powder Synthesis

SBIR 第一阶段：通过新型粉末合成实现高性能透明 AlON

• 批准号: 0231670
• 负责人: Ching-Fong Chen
• 金额: $ 10万
• 依托单位: Materials and Electrochemical Research Corporation (MER)
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-01-01 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0231670&HistoricalAwards=false
• 关键词: SBIR; Phase; Performance; Transparent; AlON

This Small Business Innovation Research Phase I project is to develop a transparent AlON with superior mechanical and optical properties using a novel powder synthesis method. This innovative powder synthesis method can not only reduce the particle size but also enhance the uniformity of the reactants. Increasing the sinterability and reducing the diffusion path can reduce the sintering time and sintering temperature reduced significantly. The advantage of these sintering conditions is a lower processing cost and a microstructure with much smaller grain size compared with the conventional processed AlON. Mechanical and thermal shock capabilities of transparent polycrystalline ceramics are limited by their mechanical strength, which in turn is enhanced when the grain size is decreased. The optical properties can also be improved due to less milling process, which results much less impurities pick-up. This innovative synthesis method can convert the surface of the powder into oxide, which makes it possible to process the powder in aqueous solution. The processing cost can be reduced significantly by using the aqueous solution. The transparent AlON developed in this program can be used to replace translucent Al2O3 for the sodium and halogen lamp applications. It can also be used for IR missile domes, transparent armors, supermarket scanners, glass for Xerox copy machine and scanners, and optical lenses. This new material could revolutionize the optical industry by replacing glass and sapphire.

这个小企业创新研究的第一阶段项目是使用一种新的粉末合成方法开发具有优越机械和光学性能的透明AlON。这种创新的粉末合成方法不仅可以减小颗粒尺寸，而且可以提高反应物的均匀性。提高烧结性，减少扩散路径，可以显著缩短烧结时间，降低烧结温度。这些烧结条件的优点是加工成本较低，与传统加工的AlON相比，其微观结构的晶粒尺寸要小得多。透明多晶陶瓷的机械和热冲击性能受到其机械强度的限制，而机械强度随着晶粒尺寸的减小而增强。光学性能也可以改善，因为较少的铣削过程，这导致更少的杂质拾取。这种创新的合成方法可以将粉末表面转化为氧化物，从而使粉末在水溶液中加工成为可能。采用水溶液可显著降低加工成本。在这个程序中开发的透明AlON可以用来代替半透明的Al2O3用于钠和卤素灯的应用。它还可以用于红外导弹圆顶、透明装甲、超市扫描仪、施乐复印机和扫描仪的玻璃，以及光学透镜。这种新材料可以取代玻璃和蓝宝石，从而彻底改变光学工业。