Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Preparation method of ZrB2-SiC composite ceramic precursor
The invention relates to a preparation method of a ZrB2-SiC multiphase ceramic precursor, and aims to solve the problem of insufficient oxidation resistance of a single-phase precursor ceramic prepared in the prior art. By adjusting the relative content of borane dimethyl sulfide, zirconium n-propoxide and phenyl trichlorosilane, the oxidation resistance of the single-phase precursor ceramic is improved, and the oxidation resistance of the single-phase precursor ceramic is improved. The polymer precursor is subjected to molecular regulation and control, the phase composition problem of elements such as B, Zr, Si and C in the ceramic after the ceramic is sintered is mainly solved, and meanwhile, the elements such as B, Zr and Si are bonded into a macromolecular network structure. As a glass layer formed by borosilicate at a high temperature has a certain synergistic effect, the oxidation resistance of the material can be better improved, and the ZrB2-SiC composite ceramic has the characteristics of good homogeneity and excellent oxidation resistance. The method is suitable for the field of ceramic precursor preparation.
一种ZrB2‑SiC复相陶瓷先驱体的制备方法，本发明涉及一种ZrB2‑SiC复相陶瓷先驱体的制备方法，本发明的目的是为了解决现有制备的单一相先驱体陶瓷抗氧化性不足的问题，本发明通过调节硼烷二甲硫醚、正丙醇锆及苯基三氯硅烷的相对含量，对聚合物先驱体进行分子调控，重点解决在陶瓷烧结后B、Zr、Si、C等元素在陶瓷中的相组成问题，同时确保将B、Zr、Si等元素键合为一种大分子网络结构。由于硼硅酸盐高温下形成的玻璃层具有一定的协同作用，可以更好提升材料抗氧化性，本发明ZrB2‑SiC复相陶瓷均一性好，抗氧化性能优异的特点。本发明适用于陶瓷先驱体制备领域。
Preparation method of ZrB2-SiC composite ceramic precursor
The invention relates to a preparation method of a ZrB2-SiC multiphase ceramic precursor, and aims to solve the problem of insufficient oxidation resistance of a single-phase precursor ceramic prepared in the prior art. By adjusting the relative content of borane dimethyl sulfide, zirconium n-propoxide and phenyl trichlorosilane, the oxidation resistance of the single-phase precursor ceramic is improved, and the oxidation resistance of the single-phase precursor ceramic is improved. The polymer precursor is subjected to molecular regulation and control, the phase composition problem of elements such as B, Zr, Si and C in the ceramic after the ceramic is sintered is mainly solved, and meanwhile, the elements such as B, Zr and Si are bonded into a macromolecular network structure. As a glass layer formed by borosilicate at a high temperature has a certain synergistic effect, the oxidation resistance of the material can be better improved, and the ZrB2-SiC composite ceramic has the characteristics of good homogeneity and excellent oxidation resistance. The method is suitable for the field of ceramic precursor preparation.
一种ZrB2‑SiC复相陶瓷先驱体的制备方法，本发明涉及一种ZrB2‑SiC复相陶瓷先驱体的制备方法，本发明的目的是为了解决现有制备的单一相先驱体陶瓷抗氧化性不足的问题，本发明通过调节硼烷二甲硫醚、正丙醇锆及苯基三氯硅烷的相对含量，对聚合物先驱体进行分子调控，重点解决在陶瓷烧结后B、Zr、Si、C等元素在陶瓷中的相组成问题，同时确保将B、Zr、Si等元素键合为一种大分子网络结构。由于硼硅酸盐高温下形成的玻璃层具有一定的协同作用，可以更好提升材料抗氧化性，本发明ZrB2‑SiC复相陶瓷均一性好，抗氧化性能优异的特点。本发明适用于陶瓷先驱体制备领域。
Preparation method of ZrB2-SiC composite ceramic precursor
一种ZrB2-SiC复相陶瓷先驱体的制备方法
HAN WENBO (Autor:in) / ZHAO GUANGDONG (Autor:in) / WU SHIBIN (Autor:in) / ZHANG XINGHONG (Autor:in) / WANG CHUNLIN (Autor:in) / WANG WUJU (Autor:in)
12.04.2022
Patent
Elektronische Ressource
Chinesisch
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