http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
무하마드 싸빗 아이만(Muhammad Tsabit Ayman),배현모(Hyeon Mo Bae),권희진(Heejin Kwon),이재형(Jaehyung Lee),윤당혁(Dang-Hyok Yoon) 한국세라믹학회 2020 세라미스트 Vol.23 No.3
Among many kinds of transparent ceramics, polycrystalline gamma-aluminum oxynitride (γ-AlON) exhibits superior optical and mechanical properties to MgAl 2 O 4 (Mg-spinel), ZnS, MgO, and Y 2 O 3 , which are even comparable to those of sapphire. Due to its high strength, hardness, and wide transmittance range from the UV to mid-IR (0.2 – 5.2 µm), γ-AlON is being applied to IR cameras, scratch-resistant windows, missile domes, transparent armor, and others, especially with increasing demand nowadays. This report discusses the basic formation mechanism of transparent γ-AlON from the Al 2 O 3 and AlN starting materials as well as its stoichiometry based on a proposed constant anion model. In addition, the results from authors’ own research, including the effects of 2-step pressureless sintering and rare earth sintering additive on the properties of γ-AlON, are explained. We hope that this article helps expanding readers’ understanding on transparent ceramics as well as establishing research direction for further breakthrough of transparent polycrystalline γ -AlON.