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http://dx.doi.org/10.6111/JKCGCT.2010.20.6.262

Fabrication and properties of Calcium-aluminate electride thin films using by sol-gel process  

Kim, K.H. (Korea Institute of Ceramic Engineering and Technology)
Park, J.S. (Korea Institute of Ceramic Engineering and Technology)
Chae, J.H. (Korea Institute of Ceramic Engineering and Technology)
Seo, W.S. (Korea Institute of Ceramic Engineering and Technology)
So, S.M. (Korea Institute of Ceramic Engineering and Technology)
Kim, T.K. (Korea Institute of Ceramic Engineering and Technology)
Kim, H.S. (Korea Institute of Ceramic Engineering and Technology)
Lee, B.H. (Department of Materials and Engineering, Myongji University)
Abstract
The Calcium-aluminate electride thin films on the quartz substrates was coated by sol-gel process. The crystallization of the C12A7 thin film was observed at $800^{\circ}C$ and high density C12A7 thin film was achieved on heat treatment at $1,200^{\circ}C$ for 1 hour. The reduction heat treatment of C12A7 thin film could be converted from insulator to conductor and the electrical conductivity was 120 S/cm in the C12A7 thin film heat treated at $1,200^{\circ}C$ with $H_2$ gas for 48 hours.
Keywords
Calcium-aluminate; Electride; Reduction; Conductor; Sol-gel; Thin film;
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