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Synthesis of AlN Powder by Carbothermal Reduction-nitridation of Alumina/Carbon Black Foam
Mao, Xi-Xi1,2,3; Li, Jun1; Zhang, Hai-Long2; Xu, Yong-Gang1,2,3; Wang, Shi-Wei1,2
2017
Source PublicationWuji Cailiao Xuebao/Journal of Inorganic Materials
ISSN1000324X
Volume32Issue:10Pages:1115-1120
AbstractAlumina/carbon black foam was prepared by mechanical foaming and aqueous gelcasting and used as precursor for the production of AlN powder. The foam with large open pores ensures homogeneous solid-gas reaction during carbothermal reduction-nitridation (CRN) process. Further, the solid-gas contact is enlarged by oppositely feeding the foam and nitrogen in a vertical furnace. Solid-gas reaction efficiency of the CRN process was greatly enhanced when total porosity of the foam was ≥80%. XRD results revealed that γ-Al2O3transformed to α-Al2O3and then was carbothermal reduction-nitridationed to be AlN phase. AlN powder with an average particle size of less than 1 µm was synthesized at 1650 and contained 32.9wt% nitrogen. © 2017, Science Press. All right reserved.
DOI10.15541/jim20170067
EI Accession Number20175104547863
EI KeywordsCarbothermal reduction
EI Classification Number802.3 Chemical Operations - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25422
Collection中国科学院上海硅酸盐研究所
Affiliation1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.Chinese Academy of Sciences Key Laboratory of Transparent and Opto-functional Advanced Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
3.University of Chinese Academy of Sciences, Beijing; 100039, China
Recommended Citation
GB/T 7714
Mao, Xi-Xi,Li, Jun,Zhang, Hai-Long,et al. Synthesis of AlN Powder by Carbothermal Reduction-nitridation of Alumina/Carbon Black Foam[J]. Wuji Cailiao Xuebao/Journal of Inorganic Materials,2017,32(10):1115-1120.
APA Mao, Xi-Xi,Li, Jun,Zhang, Hai-Long,Xu, Yong-Gang,&Wang, Shi-Wei.(2017).Synthesis of AlN Powder by Carbothermal Reduction-nitridation of Alumina/Carbon Black Foam.Wuji Cailiao Xuebao/Journal of Inorganic Materials,32(10),1115-1120.
MLA Mao, Xi-Xi,et al."Synthesis of AlN Powder by Carbothermal Reduction-nitridation of Alumina/Carbon Black Foam".Wuji Cailiao Xuebao/Journal of Inorganic Materials 32.10(2017):1115-1120.
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