Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Si3N4/SiC composite powder, low-carbon magnesia-carbon refractory material and preparation method of low-carbon magnesia-carbon refractory material
The invention discloses Si3N4/SiC composite powder, a low-carbon magnesia carbon refractory material and a preparation method of the low-carbon magnesia carbon refractory material, and relates to the technical field of low-carbon magnesia carbon refractory materials. The Si3N4/SiC composite powder comprises 70-80 wt% of Si3N4 and 20-25 wt% of SiC, and the Si3N4 and the SiC are both of a whisker structure and are interwoven with each other to form a net structure. The Si3N4/SiC composite powder has the advantages of high crystallinity, few defects, high purity and few micropores, the preparation process is simple, the cost is low, the problem that the performance of a carbon-containing refractory material is degraded due to amorphous SiO2, micropores and crystal defects in the Si3N4/SiC composite powder synthesized from the rice husks is solved, the agricultural waste rice husks are utilized in a high-valued manner, and the method is suitable for industrial production. And moreover, the prepared low-carbon magnesia carbon refractory material added with the Si3N4/SiC composite powder has excellent thermal shock resistance and erosion resistance.
Si3N4/SiC复合粉体、低碳镁碳耐火材料及其制备方法，涉及低碳镁碳耐火材料技术领域。前述Si3N4/SiC复合粉体包含70~80wt%的Si3N4和20~25wt%的SiC，Si3N4与SiC均为晶须结构并且相互交织形成网状结构。上述Si3N4/SiC复合粉体具有高结晶度、缺陷少、高纯度、微孔少的优点，并且其制备工艺简单，成本低，解决了利用稻壳合成Si3N4/SiC复合粉体中含非晶态SiO2、微孔和晶体缺陷劣化含碳耐火材料性能的问题，使农业废弃物稻壳得到高值化利用，并对环保起到了积极作用，而且所制备的添加Si3N4/SiC复合粉体的低碳镁碳耐火材料具备优异的抗热震性和抗侵蚀性能。
Si3N4/SiC composite powder, low-carbon magnesia-carbon refractory material and preparation method of low-carbon magnesia-carbon refractory material
The invention discloses Si3N4/SiC composite powder, a low-carbon magnesia carbon refractory material and a preparation method of the low-carbon magnesia carbon refractory material, and relates to the technical field of low-carbon magnesia carbon refractory materials. The Si3N4/SiC composite powder comprises 70-80 wt% of Si3N4 and 20-25 wt% of SiC, and the Si3N4 and the SiC are both of a whisker structure and are interwoven with each other to form a net structure. The Si3N4/SiC composite powder has the advantages of high crystallinity, few defects, high purity and few micropores, the preparation process is simple, the cost is low, the problem that the performance of a carbon-containing refractory material is degraded due to amorphous SiO2, micropores and crystal defects in the Si3N4/SiC composite powder synthesized from the rice husks is solved, the agricultural waste rice husks are utilized in a high-valued manner, and the method is suitable for industrial production. And moreover, the prepared low-carbon magnesia carbon refractory material added with the Si3N4/SiC composite powder has excellent thermal shock resistance and erosion resistance.
Si3N4/SiC复合粉体、低碳镁碳耐火材料及其制备方法，涉及低碳镁碳耐火材料技术领域。前述Si3N4/SiC复合粉体包含70~80wt%的Si3N4和20~25wt%的SiC，Si3N4与SiC均为晶须结构并且相互交织形成网状结构。上述Si3N4/SiC复合粉体具有高结晶度、缺陷少、高纯度、微孔少的优点，并且其制备工艺简单，成本低，解决了利用稻壳合成Si3N4/SiC复合粉体中含非晶态SiO2、微孔和晶体缺陷劣化含碳耐火材料性能的问题，使农业废弃物稻壳得到高值化利用，并对环保起到了积极作用，而且所制备的添加Si3N4/SiC复合粉体的低碳镁碳耐火材料具备优异的抗热震性和抗侵蚀性能。
Si3N4/SiC composite powder, low-carbon magnesia-carbon refractory material and preparation method of low-carbon magnesia-carbon refractory material
Si3N4/SiC复合粉体、低碳镁碳耐火材料及其制备方法
05.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
MAGNESIA-CARBON REFRACTORY AND PRODUCTION METHOD OF MAGNESIA-CARBON REFRACTORY
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