- $Al_2(SO_4)_3.18H_2O$로부터 AlN 분말의 합성: II. 탈산화 효과
- ㆍ 저자명
- 송태호,이홍림
- ㆍ 간행물명
- 요업학회지
- ㆍ 권/호정보
- 1992년|29권 6호|pp.471-479 (9 pages)
- ㆍ 발행정보
- 한국세라믹학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
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AlN powder was synthesized by carbothermal reduction and nitridation using Al2(SO4)3.18H2O as the starting material. The synthesized AlN powder was fine but contained oxygen. Therefore carbonaceous material (carbon black or phenol novolac) was added teogether with the sintering aids (CaO, CaF2, CaCl2, Y2O3 and YF3). It was found that pressureless sintering at 1700~180$0^{circ}C$ after deoxidation at 150$0^{circ}C$ suppressed the formation of second phase (27R) and reduced the contents of lattice oxygen within AlN ceramics.