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Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation
J. Q. Qi; Y. Wang; X. M. Xie; Y. Z. Wang; J. C. Zhou; N. Wei; J. Wang; D. Wu; T. C. Lu
2014
Source PublicationInternational Journal of Materials Research
ISSN1862-5282
Volume105Issue:4Pages:409-412
AbstractUsing micro-sized aluminum powder (11 wt.%) and nano-sized Al2O3 powder (89 wt.%) with five different phase compositions, AlON powders were synthesized at different temperatures in flowing-nitrogen atmosphere. Our results suggest that for starting materials with low gamma-Al2O3/total Al2O3 ratio R (0 and 0.15), a calcination temperature of 1 750 C is required to obtain single-phase AlON. This temperature is about 50 C higher than for other batches starting with larger R values (0.5, 0.85, and 1.0). The AlON powders fabricated from reactants with a high R value in this work show narrower particle size distribution and better particle homogeneity than those prepared from batches with lower R values.
description.department[qi, jianqi ; wang, ying ; xie, xiumin ; wang, yuezhong ; zhou, jicheng ; wei, nian ; lu, tiecheng] sichuan univ, sch phys sci & technol, chengdu 610064, sichuan, peoples r china. [qi, jianqi ; wang, ying ; xie, xiumin ; wang, yuezhong ; wei, nian ; lu, tiecheng] sichuan univ, minist educ, key lab high energy dens phys, chengdu 610064, sichuan, peoples r china. [wang, jun] sichuan univ sci & engn, sch sci, zigong, sichuan, peoples r china. [wu, di] univ calif davis, peter a rock thermochem lab, davis, ca 95616 usa. [wu, di] univ calif davis, neat oru, davis, ca 95616 usa. [lu, tiecheng] chinese acad sci, int ctr mat phys, shenyang 110016, liaoning, peoples r china. ; qi, jq (reprint author), sichuan univ, dept phys, 29 wangjiang rd, chengdu 610064, sichuan, peoples r china. ; qijianqi@scu.edu.cn ; lutiecheng@scu.edu.cn
KeywordSingle-phase Alon Powder Aluminothermic Reduction And Nitridation Method Raw Materials Composition Reaction Process Parameters Stability
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72897
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
J. Q. Qi,Y. Wang,X. M. Xie,et al. Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation[J]. International Journal of Materials Research,2014,105(4):409-412.
APA J. Q. Qi.,Y. Wang.,X. M. Xie.,Y. Z. Wang.,J. C. Zhou.,...&T. C. Lu.(2014).Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation.International Journal of Materials Research,105(4),409-412.
MLA J. Q. Qi,et al."Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation".International Journal of Materials Research 105.4(2014):409-412.
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