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Quartz fiber reinforced silica ceramic composite material densification method
The present invention belongs to the technical field of inorganic materials, and particularly relates to a quartz fiber reinforced silica ceramic composite material densification method, which comprises: respectively weighing high hydrogen content silicon oil, tetraethyl orthosilicate, deionized water, a catalyst and quartz powder, and stirring in water bath to obtain an impregnating solution; and dipping a quartz fiber reinforced silica ceramic composite material dried to achieve a constant weight state into the impregnating solution, carrying out a vacuum treatment, co-placing the composite material and the impregnating solution into a constant-temperature and constant-humidity drying oven, continuously dipping, and then curing to obtain the finished product. According to the present invention, the preparation method is scientific and rational and is simple to perform, the density and the compressive strength of the material are significantly improved, the dielectric constant and the dielectric dissipation factor of the densified material are substantially unchanged, and the influence on the tensile strength and the flexural strength of the material during the low temperature treatment is little.
Quartz fiber reinforced silica ceramic composite material densification method
The present invention belongs to the technical field of inorganic materials, and particularly relates to a quartz fiber reinforced silica ceramic composite material densification method, which comprises: respectively weighing high hydrogen content silicon oil, tetraethyl orthosilicate, deionized water, a catalyst and quartz powder, and stirring in water bath to obtain an impregnating solution; and dipping a quartz fiber reinforced silica ceramic composite material dried to achieve a constant weight state into the impregnating solution, carrying out a vacuum treatment, co-placing the composite material and the impregnating solution into a constant-temperature and constant-humidity drying oven, continuously dipping, and then curing to obtain the finished product. According to the present invention, the preparation method is scientific and rational and is simple to perform, the density and the compressive strength of the material are significantly improved, the dielectric constant and the dielectric dissipation factor of the densified material are substantially unchanged, and the influence on the tensile strength and the flexural strength of the material during the low temperature treatment is little.
Quartz fiber reinforced silica ceramic composite material densification method
ZHAI PING (Autor:in) / WANG HONGSHENG (Autor:in) / WANG ZHONGHAI (Autor:in) / WEI QIHONG (Autor:in) / LUAN QIANG (Autor:in) / CHENG HONGHAO (Autor:in)
16.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Alumina fiber reinforced quartz ceramic-based composite material and preparation method thereof
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| Europäisches Patentamt | 2024