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Silicon carbide fiber surface alumina-titanium oxide composite coating preparation method
The present invention provides a silicon carbide fiber surface alumina-titanium oxide composite coating preparation method, wherein the components of the oxide coating comprise alumina and titanium oxide. The specific preparation method comprises: carrying out a mixing heating reflux reaction on an organic alcohol compound of aluminum, an organic alcohol compound of titanium and deionized water according to a certain ratio, adding hot lactic acid or acetic acid to the solution, carrying out a constant temperature reaction to obtain a transparent sol, placing the sol in a sealed container, carrying out thermal insulation for a certain time, placing cleaned silicon carbide fibers in the gel to complete immersing coating, and carrying out thermal insulation on the obtained sample for a certain time at a high temperature so as to prepare the oxide coating on the silicon carbide fiber surface. According to the present invention, the prepared oxide coating is compact and uniform, combines the performance advantages of alumina and titanium oxide, and can be widely used in the technical fields of anti-oxidation, corrosion resistance, heat resistance, gas permeation resistance, and the like.
Silicon carbide fiber surface alumina-titanium oxide composite coating preparation method
The present invention provides a silicon carbide fiber surface alumina-titanium oxide composite coating preparation method, wherein the components of the oxide coating comprise alumina and titanium oxide. The specific preparation method comprises: carrying out a mixing heating reflux reaction on an organic alcohol compound of aluminum, an organic alcohol compound of titanium and deionized water according to a certain ratio, adding hot lactic acid or acetic acid to the solution, carrying out a constant temperature reaction to obtain a transparent sol, placing the sol in a sealed container, carrying out thermal insulation for a certain time, placing cleaned silicon carbide fibers in the gel to complete immersing coating, and carrying out thermal insulation on the obtained sample for a certain time at a high temperature so as to prepare the oxide coating on the silicon carbide fiber surface. According to the present invention, the prepared oxide coating is compact and uniform, combines the performance advantages of alumina and titanium oxide, and can be widely used in the technical fields of anti-oxidation, corrosion resistance, heat resistance, gas permeation resistance, and the like.
Silicon carbide fiber surface alumina-titanium oxide composite coating preparation method
CHEN ZHAOFENG (Autor:in) / WANG FEI (Autor:in)
23.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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