ELECTRICAL-CONDUCTIVITY OF PLASMA-SPRAYED TITANIUM-OXIDE (RUTILE) COATINGS

被引:41
作者
OHMORI, A
PARK, KC
INUZUKA, M
ARATA, Y
INOUE, K
IWAMOTO, N
机构
[1] KAWASAKI HEAVY IND CO LTD,KAWASAKI,JAPAN
[2] KINKI UNIV,HIGASHIOSAKA,OSAKA 577,JAPAN
关键词
D O I
10.1016/0040-6090(91)90149-R
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Plasma spraying has been used to prepare n-type polycrystalline TiO2 coatings on SUS304 steel substrates. The influence of plasma spray process on the phases (corundum type Ti2O3, monoclinic Ti3O5, triclinic magneli phases, and tetragonal rutile) formed and the relation between deoxidation and the electrical conductivity of plasma-sprayed TiO2 coatings have been studied. The amount of oxygen loss in the plasma-sprayed TiO2 coatings is influenced greatly by the addition of hydrogen in the plasma gas. Accordingly, the electrical conductivity of TiO2 coatings increases with decreasing oxygen during plasma spraying. The amount of reduced TiO2 coating increases with a drop in pressure of the plasma spray atmosphere and an increase in the quantity of hydrogen. The amounts of Ti2O3 and Ti3O5 phases formed by plasma spraying increase with the deoxidation of TiO2 coatings.
引用
收藏
页码:1 / 8
页数:8
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