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Sol-Gel Preparation and Infrared Radiation Property of Zinc-Substituted Cordierite Ceramics

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Abstract:

The sol-gel process is a useful technique with good control over final amount of compositions which can decrease the temperature of sintering in the melting procedure. A cordierite infrared radiation ceramic with a nominal composition of Mg2(1-x)Zn2xAl4Si5O18（x=0、0.05、0.10、0.15、0.20）was prepared using the powders by sol-gel method and heat treatment at 1523K for 2 hours. The results indicate that the sol-gel method can effectively decrease the sintered temperature and the substitution of Zn2+ to Mg2+ can let structural change and improve the infrared radiation properties. The specimen of x=0.20 attained a relatively high infrared emissivity of 0.91 in the whole band.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

316-320

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.316

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Online since:

January 2013

Authors:

Xu Wang, Bao Xiang Jiao, Xia Zhang, Ju Hua Luo, Hao Guan

Keywords:

Ceramic, Cordierite, Infrared Radiation Property, Sol-Gel Preparation

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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