In Situ Investigation of the Silicon Carbide Particles Sintering

A real-time observation of the microstructure evolution of irregularly shaped silicon carbide powders during solid state sintering is realized by using synchrotron radiation computerized topography (SR-CT) technique. The process of sintering neck growth and material migration during sintering are cl...

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Main Authors:	Yu Niu, Feng Xu, Xiaofang Hu, Jianhua Zhao, Hong Miao, Xiaoping Wu, Zhong Zhang
Format:	Article
Language:	English
Published:	Hindawi Limited 2011-01-01
Series:	Journal of Nanomaterials
Online Access:	http://dx.doi.org/10.1155/2011/728617

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spelling	doaj-d8c5c7b6dc65461ea03cbc74f09653582020-11-24T21:15:39ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292011-01-01201110.1155/2011/728617728617In Situ Investigation of the Silicon Carbide Particles SinteringYu Niu0Feng Xu1Xiaofang Hu2Jianhua Zhao3Hong Miao4Xiaoping Wu5Zhong Zhang6Key Laboratory of Mechanical Behavior and Design of Materials, Chinese Academy Sciences, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Mechanical Behavior and Design of Materials, Chinese Academy Sciences, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Mechanical Behavior and Design of Materials, Chinese Academy Sciences, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Mechanical Behavior and Design of Materials, Chinese Academy Sciences, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Mechanical Behavior and Design of Materials, Chinese Academy Sciences, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Mechanical Behavior and Design of Materials, Chinese Academy Sciences, University of Science and Technology of China, Hefei 230026, ChinaNational Center for Nanoscience and Technology of China, Beijing 100190, ChinaA real-time observation of the microstructure evolution of irregularly shaped silicon carbide powders during solid state sintering is realized by using synchrotron radiation computerized topography (SR-CT) technique. The process of sintering neck growth and material migration during sintering are clearly distinguished from 2D and 3D reconstructed images. The sintering neck size of the sample is presented for quantitative analysis of the sintering kinetics during solid state sintering. The neck size-time curve is obtained. Compared with traditional sintering theories, the neck growth exponent (7.87) obtained by SR-CT experiment is larger than that of the two-sphere model. Such condition is discussed and shown in terms of sintering neck growth, in which the sintering process slows down when the particle shape is irregular rather than spherical.http://dx.doi.org/10.1155/2011/728617
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Yu Niu Feng Xu Xiaofang Hu Jianhua Zhao Hong Miao Xiaoping Wu Zhong Zhang
spellingShingle	Yu Niu Feng Xu Xiaofang Hu Jianhua Zhao Hong Miao Xiaoping Wu Zhong Zhang In Situ Investigation of the Silicon Carbide Particles Sintering Journal of Nanomaterials
author_facet	Yu Niu Feng Xu Xiaofang Hu Jianhua Zhao Hong Miao Xiaoping Wu Zhong Zhang
author_sort	Yu Niu
title	In Situ Investigation of the Silicon Carbide Particles Sintering
title_short	In Situ Investigation of the Silicon Carbide Particles Sintering
title_full	In Situ Investigation of the Silicon Carbide Particles Sintering
title_fullStr	In Situ Investigation of the Silicon Carbide Particles Sintering
title_full_unstemmed	In Situ Investigation of the Silicon Carbide Particles Sintering
title_sort	in situ investigation of the silicon carbide particles sintering
publisher	Hindawi Limited
series	Journal of Nanomaterials
issn	1687-4110 1687-4129
publishDate	2011-01-01
description	A real-time observation of the microstructure evolution of irregularly shaped silicon carbide powders during solid state sintering is realized by using synchrotron radiation computerized topography (SR-CT) technique. The process of sintering neck growth and material migration during sintering are clearly distinguished from 2D and 3D reconstructed images. The sintering neck size of the sample is presented for quantitative analysis of the sintering kinetics during solid state sintering. The neck size-time curve is obtained. Compared with traditional sintering theories, the neck growth exponent (7.87) obtained by SR-CT experiment is larger than that of the two-sphere model. Such condition is discussed and shown in terms of sintering neck growth, in which the sintering process slows down when the particle shape is irregular rather than spherical.
url	http://dx.doi.org/10.1155/2011/728617
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In Situ Investigation of the Silicon Carbide Particles Sintering

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