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ZrC-SiC multiphase ceramic hyperbranched precursor, ZrC-SiC ceramic-based composite material and preparation methods of ZrC-SiC multiphase ceramic hyperbranched precursor and ZrC-SiC ceramic-based composite material
The invention relates to a ZrC-SiC multiphase ceramic hyperbranched precursor, a ZrC-SiC ceramic-based composite material and preparation methods of the ZrC-SiC multiphase ceramic hyperbranched precursor and the ZrC-SiC ceramic-based composite material. The method comprises the following steps: reacting magnesium with (chloromethyl) methyl-dichlorosilane in tetrahydrofuran to obtain a solution containing a first reaction monomer; the molar ratio of magnesium to (chloromethyl) methyl-dichlorosilane is (1-4): 1; adding a second reaction monomer zirconocene dichloride and lithium aluminum hydride into the solution containing the first reaction monomer for reaction to prepare a ZrC-SiC multiphase ceramic hyperbranched precursor; the molar ratio of the zirconocene dichloride to the (chloromethyl) methyl-dichlorosilane is (1-5): (1-5). The ZrC-SiC multiphase ceramic precursor is designed into a hyperbranched structure, and has the characteristics of low viscosity, good solubility and facilitation of improvement of the ceramic yield, the hyperbranched structure is controllable, the ratio of Si to Zr elements can be regulated and controlled, and the ablation resistance and the erosion resistance of a ceramic phase are improved.
本发明涉及一种ZrC‑SiC复相陶瓷超支化前驱体、ZrC‑SiC陶瓷基复合材料及其制备方法。所述方法：将镁和(氯甲基)甲基‑二氯硅烷在四氢呋喃中进行反应，得到含有第一反应单体的溶液；镁与(氯甲基)甲基‑二氯硅烷的摩尔比为(1～4)：1；往含有第一反应单体的溶液中加入第二反应单体二氯二茂锆和氢化铝锂进行反应，制得ZrC‑SiC复相陶瓷超支化前驱体；二氯二茂锆与(氯甲基)甲基‑二氯硅烷的摩尔比为(1～5)：(1～5)。本发明将ZrC‑SiC复相陶瓷前驱体设计为超支化构型，具有粘度低，溶解性好，有利于提高陶瓷产率的特点，且超支化结构可控，可调控Si、Zr元素比，提高陶瓷相的耐烧蚀性和抗冲刷性。
ZrC-SiC multiphase ceramic hyperbranched precursor, ZrC-SiC ceramic-based composite material and preparation methods of ZrC-SiC multiphase ceramic hyperbranched precursor and ZrC-SiC ceramic-based composite material
The invention relates to a ZrC-SiC multiphase ceramic hyperbranched precursor, a ZrC-SiC ceramic-based composite material and preparation methods of the ZrC-SiC multiphase ceramic hyperbranched precursor and the ZrC-SiC ceramic-based composite material. The method comprises the following steps: reacting magnesium with (chloromethyl) methyl-dichlorosilane in tetrahydrofuran to obtain a solution containing a first reaction monomer; the molar ratio of magnesium to (chloromethyl) methyl-dichlorosilane is (1-4): 1; adding a second reaction monomer zirconocene dichloride and lithium aluminum hydride into the solution containing the first reaction monomer for reaction to prepare a ZrC-SiC multiphase ceramic hyperbranched precursor; the molar ratio of the zirconocene dichloride to the (chloromethyl) methyl-dichlorosilane is (1-5): (1-5). The ZrC-SiC multiphase ceramic precursor is designed into a hyperbranched structure, and has the characteristics of low viscosity, good solubility and facilitation of improvement of the ceramic yield, the hyperbranched structure is controllable, the ratio of Si to Zr elements can be regulated and controlled, and the ablation resistance and the erosion resistance of a ceramic phase are improved.
本发明涉及一种ZrC‑SiC复相陶瓷超支化前驱体、ZrC‑SiC陶瓷基复合材料及其制备方法。所述方法：将镁和(氯甲基)甲基‑二氯硅烷在四氢呋喃中进行反应，得到含有第一反应单体的溶液；镁与(氯甲基)甲基‑二氯硅烷的摩尔比为(1～4)：1；往含有第一反应单体的溶液中加入第二反应单体二氯二茂锆和氢化铝锂进行反应，制得ZrC‑SiC复相陶瓷超支化前驱体；二氯二茂锆与(氯甲基)甲基‑二氯硅烷的摩尔比为(1～5)：(1～5)。本发明将ZrC‑SiC复相陶瓷前驱体设计为超支化构型，具有粘度低，溶解性好，有利于提高陶瓷产率的特点，且超支化结构可控，可调控Si、Zr元素比，提高陶瓷相的耐烧蚀性和抗冲刷性。
ZrC-SiC multiphase ceramic hyperbranched precursor, ZrC-SiC ceramic-based composite material and preparation methods of ZrC-SiC multiphase ceramic hyperbranched precursor and ZrC-SiC ceramic-based composite material
一种ZrC-SiC复相陶瓷超支化前驱体、ZrC-SiC陶瓷基复合材料及其制备方法
HAO NAIRONG (Autor:in) / SUN YANAN (Autor:in) / YANG LIANGWEI (Autor:in) / YANG XIAOJIAN (Autor:in) / LIU JUNPENG (Autor:in) / LIU WEI (Autor:in)
27.02.2024
Patent
Elektronische Ressource
Chinesisch
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