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Synthesis of Fine AlN Powders by Foamed Precursor-assisted Carbothermal Reduction-nitridation Method
Mao Xi-Xi; Xu Yong-Gang; Mao Xiao-Jian; Zhang Hai-Long; Li Jun; Wang Shi-Wei
2019-09-23
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume34Issue:10Pages:1123
SubtypeArticle
AbstractA modified carbothermal reduction-nitridation (CRN) method was proposed to synthesize fine AN particles using gamma-Al2O3 and sucrose as raw materials which were pre-treated as cellular foams. The reaction procedure and the produced AlN were investigated by XRD, SEM and TEM. XRD result suggests that gamma-Al2O3 transferred into AlN without transformation into alpha-Al2O3. HRTEM shows that gamma-Al2O3 particles are covered by amorphous carbon from sucrose inhibiting the transformation of alpha-Al2O3 from gamma-Al2O3 in the synthesis procedure. The foamed structure is of benefit to the diffusion of N-2 and the produced CO. The minimum reaction temperature is 1450 degrees C for full conversion of Al2O3 to AlN. SEM photographs show the particle size of synthesized AlN is 50 nm. This study demonstrated an efficient way to synthesize fine AlN powders which are urgently required for the manufacture of advanced AlN ceramics.
Keywordaluminum nitride foams particles synthesis
DOI10.15541/jim20190055
Language英语
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26823
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Mao Xi-Xi,Xu Yong-Gang,Mao Xiao-Jian,et al. Synthesis of Fine AlN Powders by Foamed Precursor-assisted Carbothermal Reduction-nitridation Method[J]. JOURNAL OF INORGANIC MATERIALS,2019,34(10):1123.
APA Mao Xi-Xi,Xu Yong-Gang,Mao Xiao-Jian,Zhang Hai-Long,Li Jun,&Wang Shi-Wei.(2019).Synthesis of Fine AlN Powders by Foamed Precursor-assisted Carbothermal Reduction-nitridation Method.JOURNAL OF INORGANIC MATERIALS,34(10),1123.
MLA Mao Xi-Xi,et al."Synthesis of Fine AlN Powders by Foamed Precursor-assisted Carbothermal Reduction-nitridation Method".JOURNAL OF INORGANIC MATERIALS 34.10(2019):1123.
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