Oxidation behavior of beta-SiAlON powders fabricated by combustion   synthesis

doi:10.1016/j.ceramint.2016.01.125

CORC > 北京大学 > 工学院

	Oxidation behavior of beta-SiAlON powders fabricated by combustion synthesis
	Li, Zhongmin ; Wang, Zhanjun ; Zhu, Mengguang ; Li, Jinfu ; Zhang, Zuotai
刊名	CERAMICS INTERNATIONAL
	2016
关键词	Combustion Synthesis Oxidation beta-SiAlON Diluents YB ALPHA-SIALON KINETIC-MODEL THERMAL-OXIDATION CERAMICS
DOI	10.1016/j.ceramint.2016.01.125
英文摘要	The present study presents the effect of addition of diluents on the crystal morphologies and the impact on the oxidation resistance of beta-SiAlON powders obtained from combustion synthesis method. Pure beta-SiAlON were synthesized with diluents. It was observed by SEM that the diluents resulted in the transformation from large hexagonal column-shaped crystals to fine isotropic grains. Oxidation experiments were conducted by thermogravimetric analysis (TGA) in the temperature range from 1200 degrees C to 1400 degrees C. The TGA results indicated that oxidation was controlled by mixed chemical reaction and diffusion process. The chemical reaction step was found to be rate-controlling at low oxidation temperatures (1200 degrees C and 1300 degrees C), while at high temperature (1400 degrees C), diffusion was found to control the reaction rate. Oxidation products were investigated by X-ray Diffraction (XRD) analysis and found to be made up of SiO2, Al2O3. This research aims to provide guidance for the fabrication of beta-SiAlON by combustion synthesis, thus facilitating its further application in high temperature industry. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.; Common Development Fund of Beijing; National Natural Science Foundation of China [51472007, 51272005, 51522401]; SCI(E); EI; ARTICLE; zuotaizhang@pku.edu.cn; 6; 7290-7299; 42
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437338]
专题	工学院
推荐引用方式 GB/T 7714	Li, Zhongmin,Wang, Zhanjun,Zhu, Mengguang,et al. Oxidation behavior of beta-SiAlON powders fabricated by combustion synthesis[J]. CERAMICS INTERNATIONAL,2016.
APA	Li, Zhongmin,Wang, Zhanjun,Zhu, Mengguang,Li, Jinfu,&Zhang, Zuotai.(2016).Oxidation behavior of beta-SiAlON powders fabricated by combustion synthesis.CERAMICS INTERNATIONAL.
MLA	Li, Zhongmin,et al."Oxidation behavior of beta-SiAlON powders fabricated by combustion synthesis".CERAMICS INTERNATIONAL (2016).