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Interpenetrating mullite/boron carbide foamed ceramic high-temperature-resistant neutron shielding material and preparation method thereof
The invention discloses an interpenetrating mullite/boron carbide foamed ceramic high-temperature-resistant neutron shielding material and a preparation method thereof, and belongs to the technical field of preparation of foamed ceramic materials and polymer composite materials. The method comprises the following steps: preparing a precursor of the boron carbide foamed ceramic by adopting an organic foam impregnation method; a mullite structure is adopted to reinforce the boron carbide foamed ceramic; calcining the boron carbide foamed ceramic in a pressureless sintering mode under argon protection; filling pores of the foamed ceramic with liquid resin in a vacuum impregnation manner; and curing the liquid resin in the pores in situ in a thermocuring mode to finally form the novel neutron shielding material with the interpenetrating phase. The neutron shielding material prepared by the invention has the advantages of light weight, high temperature resistance, irradiation resistance, chemical corrosion resistance, high mechanical strength and good neutron shielding performance; meanwhile, on the premise of keeping the ceramic material as a high-temperature structural material, the ceramic material also has excellent characteristics of a polymer material.
本发明公开了一种互穿型莫来石/碳化硼泡沫陶瓷耐高温中子屏蔽材料及其制备方法，属于泡沫陶瓷材料和聚合物复合材料制备技术领域；本发明采用有机泡沫浸渍法制备碳化硼泡沫陶瓷的前驱体，采用莫来石结构增强碳化硼泡沫陶瓷，采用氩气保护、无压烧结的方式煅烧碳化硼泡沫陶瓷，采用真空浸渍的方式填充液态树脂于泡沫陶瓷的孔隙，采用热固化的方式原位固化液态树脂于孔隙中，最后形成一种具有互穿相的新型中子屏蔽材料。本发明所制备的中子屏蔽材料质轻、耐高温、耐辐照、耐化学腐蚀、力学强度高且中子屏蔽性能好；在保持陶瓷材料作为高温结构材料的前提下，还兼具聚合物材料的优良特性。
Interpenetrating mullite/boron carbide foamed ceramic high-temperature-resistant neutron shielding material and preparation method thereof
The invention discloses an interpenetrating mullite/boron carbide foamed ceramic high-temperature-resistant neutron shielding material and a preparation method thereof, and belongs to the technical field of preparation of foamed ceramic materials and polymer composite materials. The method comprises the following steps: preparing a precursor of the boron carbide foamed ceramic by adopting an organic foam impregnation method; a mullite structure is adopted to reinforce the boron carbide foamed ceramic; calcining the boron carbide foamed ceramic in a pressureless sintering mode under argon protection; filling pores of the foamed ceramic with liquid resin in a vacuum impregnation manner; and curing the liquid resin in the pores in situ in a thermocuring mode to finally form the novel neutron shielding material with the interpenetrating phase. The neutron shielding material prepared by the invention has the advantages of light weight, high temperature resistance, irradiation resistance, chemical corrosion resistance, high mechanical strength and good neutron shielding performance; meanwhile, on the premise of keeping the ceramic material as a high-temperature structural material, the ceramic material also has excellent characteristics of a polymer material.
本发明公开了一种互穿型莫来石/碳化硼泡沫陶瓷耐高温中子屏蔽材料及其制备方法，属于泡沫陶瓷材料和聚合物复合材料制备技术领域；本发明采用有机泡沫浸渍法制备碳化硼泡沫陶瓷的前驱体，采用莫来石结构增强碳化硼泡沫陶瓷，采用氩气保护、无压烧结的方式煅烧碳化硼泡沫陶瓷，采用真空浸渍的方式填充液态树脂于泡沫陶瓷的孔隙，采用热固化的方式原位固化液态树脂于孔隙中，最后形成一种具有互穿相的新型中子屏蔽材料。本发明所制备的中子屏蔽材料质轻、耐高温、耐辐照、耐化学腐蚀、力学强度高且中子屏蔽性能好；在保持陶瓷材料作为高温结构材料的前提下，还兼具聚合物材料的优良特性。
Interpenetrating mullite/boron carbide foamed ceramic high-temperature-resistant neutron shielding material and preparation method thereof
一种互穿型莫来石/碳化硼泡沫陶瓷耐高温中子屏蔽材料及其制备方法
DAI YAODONG (author) / LIU YUNFU (author) / CHANG SHUQUAN (author) / YAO CHUQING (author) / LIU FENG (author) / JIANG DANFENG (author)
2022-02-01
Patent
Electronic Resource
Chinese
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