Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-thermal-expansion-coefficient multiphase ceramic and preparation method thereof
The invention provides a low-thermal-expansion-coefficient multiphase ceramic and a preparation method thereof, and belongs to the technical field of multiphase ceramics. The low-thermal-expansion-coefficient multiphase ceramic is prepared from the following raw materials in parts by mass: 65-70 parts of zirconium phosphate powder; 20 to 25 parts of wollastonite powder; 2-4 parts of a sintering aid and 1.5-2 parts of polyvinyl alcohol. The zirconium phosphate powder and the wollastonite powder are used as main raw materials, the zirconium phosphate is layered in microstructure, the wollastonite has a high length-diameter ratio and is needle-shaped, and the wollastonite can be inserted into the layered structure of the zirconium phosphate to form an intercalation structure with the zirconium phosphate, so that the composite ceramic has a low thermal expansion coefficient. Meanwhile, the intercalation structure formed by the zirconium phosphate and the wollastonite can also improve the mechanical strength of the material and reduce the conductivity of the material, so that the composite ceramic material can be applied to a harsh use environment.
本发明提供了一种低热膨胀系数复相陶瓷及其制备方法，属于复相陶瓷技术领域。本发明提供低热膨胀系数复相陶瓷由以下质量份的原料制备得到：磷酸锆粉65～70份；硅灰石粉20～25份；烧结助剂2～4份；聚乙烯醇1.5～2份。本发明以磷酸锆粉和硅灰石粉作为主要原料，从微观结构来看，磷酸锆呈层状，硅灰石具有高长径比，呈针状，能够插入磷酸锆的层状结构中与磷酸锆形成插层结构，使得复相陶瓷具有低热膨胀系数。同时，磷酸锆和硅灰石形成的插层结构还能够提高材料的机械强度，降低材料的导电性能，使复相陶瓷材料能够应用于严苛的使用环境中。
Low-thermal-expansion-coefficient multiphase ceramic and preparation method thereof
The invention provides a low-thermal-expansion-coefficient multiphase ceramic and a preparation method thereof, and belongs to the technical field of multiphase ceramics. The low-thermal-expansion-coefficient multiphase ceramic is prepared from the following raw materials in parts by mass: 65-70 parts of zirconium phosphate powder; 20 to 25 parts of wollastonite powder; 2-4 parts of a sintering aid and 1.5-2 parts of polyvinyl alcohol. The zirconium phosphate powder and the wollastonite powder are used as main raw materials, the zirconium phosphate is layered in microstructure, the wollastonite has a high length-diameter ratio and is needle-shaped, and the wollastonite can be inserted into the layered structure of the zirconium phosphate to form an intercalation structure with the zirconium phosphate, so that the composite ceramic has a low thermal expansion coefficient. Meanwhile, the intercalation structure formed by the zirconium phosphate and the wollastonite can also improve the mechanical strength of the material and reduce the conductivity of the material, so that the composite ceramic material can be applied to a harsh use environment.
本发明提供了一种低热膨胀系数复相陶瓷及其制备方法，属于复相陶瓷技术领域。本发明提供低热膨胀系数复相陶瓷由以下质量份的原料制备得到：磷酸锆粉65～70份；硅灰石粉20～25份；烧结助剂2～4份；聚乙烯醇1.5～2份。本发明以磷酸锆粉和硅灰石粉作为主要原料，从微观结构来看，磷酸锆呈层状，硅灰石具有高长径比，呈针状，能够插入磷酸锆的层状结构中与磷酸锆形成插层结构，使得复相陶瓷具有低热膨胀系数。同时，磷酸锆和硅灰石形成的插层结构还能够提高材料的机械强度，降低材料的导电性能，使复相陶瓷材料能够应用于严苛的使用环境中。
Low-thermal-expansion-coefficient multiphase ceramic and preparation method thereof
一种低热膨胀系数复相陶瓷及其制备方法
WU PINGFEI (Autor:in) / SONG JIANQIANG (Autor:in) / ZOU JIANSHENG (Autor:in) / XU YONGHUA (Autor:in) / ZHOU FENG (Autor:in) / WEN SHENGPING (Autor:in)
13.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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