Aluminum Nitride Formation From Aluminum Oxide/Phenol Resin Solid-Gel Mixture By Carbothermal Reduction Nitridation Method

Archives of Metallurgy and Materials

Dae-Ho Yoon¹  Dang Thy Mylinh²  Chang-Yeoul Kim² 

[1] ELECTRONIC MATERIALS LAB., SCHOOL OF ADVANCED MATERIALS SCIENCE AND ENGINEERING, SUNGKYUNKWAN. UNIV, SUWON 440-746, REPUBLIC OF KOREA;NANO CONVERGENCE INTELLIGENCE MATERIAL TEAM, KOREA, INSTITUTE OF CERAMIC, ENGINEERING AND TECHNOLOGY SONO-RO 101, JINJU-SI, KYEONG-SANGNAM-DO, 660-031 KOREA

关键词: Keywords: aluminum nitride;    powder;    carbothermal reduction;    nitridation;    solid-gel mixture;   

DOI  :  10.1515/amm-2015-0171

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

Hexagonal and cubic crystalline aluminum nitride (AlN) particles were successfully synthesized using phenol resin and alpha aluminum oxide (α-Al2O3) as precursors through new solid-gel mixture and carbothermal reduction nitridaton (CRN) process with molar ratio of C/Al2O3 = 3. The effect of reaction temperature on the decomposition of phenol resin and synthesis of hexagonal and cubic AlN were investigated and the reaction mechanism was also discussed. The results showed that α-Al2O3 powder in homogeneous solid-gel precursor was easily nitrided to yield AlN powder during the carbothermal reduction nitridation process. The reaction temperature needed for a complete conversion for the precursor was about 1700°C, which much lower than that when using α-Al2O3 and carbon black as starting materials. To our knowledge, phenol resin is the first time to be used for synthesizing AlN powder via carbothermal reduction and nitridation method, which would be an efficient, economical, cheap assistant reagent for large scale synthesis of AlN powder.

【 授权许可】

Unknown