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Silicon carbide foamed ceramic as well as preparation method and application thereof
The invention discloses silicon carbide foamed ceramic and a preparation method and application thereof.The silicon carbide foamed ceramic is prepared from, by mass, 15%-85% of a liquid ceramic precursor of a structural unit shown in the formula (I), 2 ppm-2.0% of a curing initiator, 14%-85% of filler and a microsphere foaming agent, the content of the microsphere foaming agent is 9-45wt% of the total amount of the liquid ceramic precursor, the curing initiator and the filler. The silicon carbide foamed ceramic provided by the invention has a closed-cell structure, low relative density, high porosity, good thermal stability, high compressive strength, good oxidation resistance and still high compressive strength after being oxidized at 1400 DEG C for 10 hours, and can be sintered at a relatively low temperature. # imgabs0 #
本发明公开了一种碳化硅泡沫陶瓷及其制备方法和应用，所述碳化硅泡沫陶瓷的制备原料按质量百分比为100％计，包括：式(I)所示结构单元的液态陶瓷前驱体15～85wt％，固化引发剂2ppm～2.0wt％，填料14～85wt％，所述原料还包括微球发泡剂，所述微球发泡剂的含量为所述液态陶瓷前驱体、固化引发剂和填料总量的9～45wt％。本发明的碳化硅泡沫陶瓷具有闭孔结构，相对密度低，孔隙率高，热稳定性好，抗压强度高，可在较低温度下烧结，抗氧化性能好，1400℃氧化10h后仍有较高抗压强度。#imgabs0#
Silicon carbide foamed ceramic as well as preparation method and application thereof
The invention discloses silicon carbide foamed ceramic and a preparation method and application thereof.The silicon carbide foamed ceramic is prepared from, by mass, 15%-85% of a liquid ceramic precursor of a structural unit shown in the formula (I), 2 ppm-2.0% of a curing initiator, 14%-85% of filler and a microsphere foaming agent, the content of the microsphere foaming agent is 9-45wt% of the total amount of the liquid ceramic precursor, the curing initiator and the filler. The silicon carbide foamed ceramic provided by the invention has a closed-cell structure, low relative density, high porosity, good thermal stability, high compressive strength, good oxidation resistance and still high compressive strength after being oxidized at 1400 DEG C for 10 hours, and can be sintered at a relatively low temperature. # imgabs0 #
本发明公开了一种碳化硅泡沫陶瓷及其制备方法和应用，所述碳化硅泡沫陶瓷的制备原料按质量百分比为100％计，包括：式(I)所示结构单元的液态陶瓷前驱体15～85wt％，固化引发剂2ppm～2.0wt％，填料14～85wt％，所述原料还包括微球发泡剂，所述微球发泡剂的含量为所述液态陶瓷前驱体、固化引发剂和填料总量的9～45wt％。本发明的碳化硅泡沫陶瓷具有闭孔结构，相对密度低，孔隙率高，热稳定性好，抗压强度高，可在较低温度下烧结，抗氧化性能好，1400℃氧化10h后仍有较高抗压强度。#imgabs0#
Silicon carbide foamed ceramic as well as preparation method and application thereof
一种碳化硅泡沫陶瓷及其制备方法和应用
LI YONGMING (author) / JING CHUFAN (author) / XU CAIHONG (author) / LUO YONGMING (author)
2024-03-22
Patent
Electronic Resource
Chinese
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