Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ZrB2/SiC ceramic-based composite material as well as preparation method and application thereof
The invention provides a ZrB2/SiC ceramic-based composite material as well as a preparation method and application thereof, the preparation method comprises the following steps: step 1, carrying out crosslinking curing on a ZrB2 liquid-phase precursor, and grinding the obtained solid to obtain precursor powder; step 2, carrying out compression molding on the precursor powder to obtain a green body; 3, the green body is subjected to low-temperature cracking, and a cracked green body is obtained; 4, the cracked green body is subjected to high-temperature cracking, and ZrB2 ceramic is obtained; 5, the ZrB2 ceramic is immersed in liquid polycarbosilane, vacuum impregnation is carried out, and after impregnation is completed, the ZrB2 ceramic is cured; and 6, carrying out high-temperature cracking on the sample cured in the step 5 to obtain the ZrB2/SiC ultrahigh-temperature ceramic matrix composite material. The obtained ZrB2/SiC ceramic-based composite material has the advantages of high temperature resistance, low density, good wave-absorbing performance and the like, and the application range of ultrahigh-temperature ceramic in the field of stealth materials is widened.
本发明提供一种ZrB2/SiC陶瓷基复合材料及其制备方法和应用，制备方法包括：步骤1：将ZrB2液相前驱体进行交联固化，所得固体研磨，得到前驱体粉体；步骤2：将前驱体粉体压制成型，得到坯体；步骤3：将坯体进行低温裂解，得到裂解坯体；步骤4：将裂解坯体进行高温裂解，得到ZrB2陶瓷；步骤5：将ZrB2陶瓷浸没于液态聚碳硅烷中，进行真空浸渍，浸渍完成后将ZrB2陶瓷进行固化；步骤6：将步骤5固化后的样品进行高温裂解，得到ZrB2/SiC超高温陶瓷基复合材料。所得ZrB2/SiC陶瓷基复合材料具有耐高温、低密度、吸波性能好等优点，拓宽超高温陶瓷在隐身材料领域的应用。
ZrB2/SiC ceramic-based composite material as well as preparation method and application thereof
The invention provides a ZrB2/SiC ceramic-based composite material as well as a preparation method and application thereof, the preparation method comprises the following steps: step 1, carrying out crosslinking curing on a ZrB2 liquid-phase precursor, and grinding the obtained solid to obtain precursor powder; step 2, carrying out compression molding on the precursor powder to obtain a green body; 3, the green body is subjected to low-temperature cracking, and a cracked green body is obtained; 4, the cracked green body is subjected to high-temperature cracking, and ZrB2 ceramic is obtained; 5, the ZrB2 ceramic is immersed in liquid polycarbosilane, vacuum impregnation is carried out, and after impregnation is completed, the ZrB2 ceramic is cured; and 6, carrying out high-temperature cracking on the sample cured in the step 5 to obtain the ZrB2/SiC ultrahigh-temperature ceramic matrix composite material. The obtained ZrB2/SiC ceramic-based composite material has the advantages of high temperature resistance, low density, good wave-absorbing performance and the like, and the application range of ultrahigh-temperature ceramic in the field of stealth materials is widened.
本发明提供一种ZrB2/SiC陶瓷基复合材料及其制备方法和应用，制备方法包括：步骤1：将ZrB2液相前驱体进行交联固化，所得固体研磨，得到前驱体粉体；步骤2：将前驱体粉体压制成型，得到坯体；步骤3：将坯体进行低温裂解，得到裂解坯体；步骤4：将裂解坯体进行高温裂解，得到ZrB2陶瓷；步骤5：将ZrB2陶瓷浸没于液态聚碳硅烷中，进行真空浸渍，浸渍完成后将ZrB2陶瓷进行固化；步骤6：将步骤5固化后的样品进行高温裂解，得到ZrB2/SiC超高温陶瓷基复合材料。所得ZrB2/SiC陶瓷基复合材料具有耐高温、低密度、吸波性能好等优点，拓宽超高温陶瓷在隐身材料领域的应用。
ZrB2/SiC ceramic-based composite material as well as preparation method and application thereof
一种ZrB2/SiC陶瓷基复合材料及其制备方法和应用
JIA YUJUN (Autor:in) / LIU SIJIAN (Autor:in) / HU JISHENG (Autor:in) / DAI MENGYU (Autor:in)
04.06.2024
Patent
Elektronische Ressource
Chinesisch
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