Title of article
Fabrication of c-axis-oriented apatite-type polycrystalline La10Si6O27 ceramic and its anisotropic oxide ionic conductivity
Author/Authors
SUSUMU NAKAYAMA?، نويسنده , , Yoshikatsu Higuchi، نويسنده , , Masayuki Sugawara، نويسنده , , Atsushi Makiya، نويسنده , , Keizo Uematsu، نويسنده , , Masatomi Sakamoto، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2014
Pages
4
From page
1221
To page
1224
Abstract
The c-axis-oriented apatite-type lanthanum silicate, La10Si6O27, ceramic was successfully fabricated by an application of a high magnetic field followed by a sintering process. Degree of an orientation in the La10Si6O27 ceramic sintered at 1700 °C was 48.1% along (00l) on the Lotgering scale. Conductivity of the c-axis-oriented La10Si6O27 ceramic is about 0.5 orders of magnitude higher than that of the non-oriented La10Si6O27 ceramic. The higher conductivity is caused by an orientation of oxide ions in the grains composing the ceramic, which are located along the c-axis and responsible for the ionic conduction.
Keywords
apatite-type structure , Oxide ionic conductor , Lanthanum silicate , X-ray method
Journal title
Ceramics International
Serial Year
2014
Journal title
Ceramics International
Record number
1275607
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