Proceedings of the Korean Institute of Information and Commucation Sciences Conference (한국정보통신학회:학술대회논문집)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Highly donor-doped $Ba_{1-x}$$La_x$Ti$O_3$ ceramics

  • Korobova N. (SMS&E, Seoul National University) ;
  • Wha, Soh-Dea (Dept. of Electronics Eng., Myongji University)
  • Published : 2003.05.01
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Abstract

Sol-gel processing of BaTiO$_3$ ceramics doped with La(0.01-1.00 at.%) were prepared from metal barium, titanium n-butoxide and lanthanum isopropoxide. Characterization of the sol-gel-derived powder using XRD, SEM is also reported. The obtained results suggested that insulator to semiconductor transition for highly donor-doped barium titanate was closely related to the incorporation of donor into the grains and to the resultant grain size, which were significantly affected by the sinterability of BaTiO$_3$ powders and sintering conditions used.

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