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Nonpolar zirconium carbide liquid-phase ceramic precursor, preparation method therefor and application thereof
The invention relates to a nonpolar zirconium carbide liquid-phase ceramic precursor, a preparation method therefor and application thereof. The preparation method comprises: firstly preparing a nonpolar zirconium polymer-polyzircooxane through coordination protection of propyl zirconate and controllable hydrolysis condensation reaction; and by using the polyzircooxane as a zirconium source and divinyl benzene as a carbon source, compounding the components to obtain the nonpolar zirconium carbide liquid-phase ceramic precursor. The liquid-phase precursor prepared by the invention has the characteristics of polymer resin; the viscosity of the precursor can be controlled between 50 mpa.s and 500 mpa.s by adjusting the solid content, and the manufacturability is good. The zirconium carbide liquid-phase ceramic precursor which is cured and thermally treated can be converted into a pure-phase zirconium carbide ceramic at a relatively low temperature ( for example, 1500 DEG C). The liquid-phase ceramic precursor prepared by the invention is expected to be used as impregnating resin for a ceramic-based composite material and an antioxidant C/C and C/Si composite material so as to improve the ultra-high temperature antioxidant performance of the material and reduce the ablativity of the material.
Nonpolar zirconium carbide liquid-phase ceramic precursor, preparation method therefor and application thereof
The invention relates to a nonpolar zirconium carbide liquid-phase ceramic precursor, a preparation method therefor and application thereof. The preparation method comprises: firstly preparing a nonpolar zirconium polymer-polyzircooxane through coordination protection of propyl zirconate and controllable hydrolysis condensation reaction; and by using the polyzircooxane as a zirconium source and divinyl benzene as a carbon source, compounding the components to obtain the nonpolar zirconium carbide liquid-phase ceramic precursor. The liquid-phase precursor prepared by the invention has the characteristics of polymer resin; the viscosity of the precursor can be controlled between 50 mpa.s and 500 mpa.s by adjusting the solid content, and the manufacturability is good. The zirconium carbide liquid-phase ceramic precursor which is cured and thermally treated can be converted into a pure-phase zirconium carbide ceramic at a relatively low temperature ( for example, 1500 DEG C). The liquid-phase ceramic precursor prepared by the invention is expected to be used as impregnating resin for a ceramic-based composite material and an antioxidant C/C and C/Si composite material so as to improve the ultra-high temperature antioxidant performance of the material and reduce the ablativity of the material.
Nonpolar zirconium carbide liquid-phase ceramic precursor, preparation method therefor and application thereof
QIU WENFENG (Autor:in) / ZHAO TONG (Autor:in) / HAN WEIJIAN (Autor:in)
06.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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