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Silicon carbide-calcium hexaluminate-aluminum composite refractory material
The invention belongs to the field of refractory materials, and relates to a silicon carbide-calcium hexaluminate-aluminum composite refractory material. According to the silicon carbide-calcium hexaluminate-aluminum composite refractory material, silicon carbide particles with the adding amount being 60%-75% of the total mass of raw materials serve as aggregate; a matrix is also added into the composite refractory material, wherein the matrix contains compact calcium hexaluminate fine powder or micro powder; and metal aluminum powder subjected to coating treatment is further added into the matrix, the particle size range is 10-45 microns, and the adding amount is 2%-8% of the total mass of the raw materials. By uniformly mixing the aggregate, the matrix and the binding agent, carrying outmechanical pressing molding, drying, and sintering at the highest temperature of 1500-1600 DEG C in a carbon-buried atmosphere, the silicon carbide-calcium hexaluminate-aluminum composite material isobtained. According to the invention, the phase composition of the matrix is improved, the high-temperature mechanical property and the high-temperature breaking strength of the material are improved, and meanwhile, the material has the characteristics of excellent erosion resistance, low price, excellent thermal shock resistance and the like.
本发明属于耐火材料领域，涉及一种碳化硅‑六铝酸钙‑铝复合耐火材料。涉及的一种碳化硅‑六铝酸钙‑铝复合耐火材料以加入量为原料总质量60%～75%的碳化硅颗粒为骨料；复合耐火材料还加入有基质；基质中含有致密六铝酸钙细粉或微粉；所述的基质中还加入了经包覆处理的金属铝粉，粒度范围为10μm～45μm，加入量为原料总质量的2%～8%；骨料、基质与结合剂混合均匀后进行机压成型，干燥后在埋碳气氛下最高温度1500℃～1600℃烧成制得碳化硅‑六铝酸钙‑铝复合材料。本发明改善了基质物相组成，提升了其高温力学性能和材料的高温抗折强度，并同时具有抗侵蚀性能优秀、价格低廉、热震稳定性优秀等特点。
Silicon carbide-calcium hexaluminate-aluminum composite refractory material
The invention belongs to the field of refractory materials, and relates to a silicon carbide-calcium hexaluminate-aluminum composite refractory material. According to the silicon carbide-calcium hexaluminate-aluminum composite refractory material, silicon carbide particles with the adding amount being 60%-75% of the total mass of raw materials serve as aggregate; a matrix is also added into the composite refractory material, wherein the matrix contains compact calcium hexaluminate fine powder or micro powder; and metal aluminum powder subjected to coating treatment is further added into the matrix, the particle size range is 10-45 microns, and the adding amount is 2%-8% of the total mass of the raw materials. By uniformly mixing the aggregate, the matrix and the binding agent, carrying outmechanical pressing molding, drying, and sintering at the highest temperature of 1500-1600 DEG C in a carbon-buried atmosphere, the silicon carbide-calcium hexaluminate-aluminum composite material isobtained. According to the invention, the phase composition of the matrix is improved, the high-temperature mechanical property and the high-temperature breaking strength of the material are improved, and meanwhile, the material has the characteristics of excellent erosion resistance, low price, excellent thermal shock resistance and the like.
本发明属于耐火材料领域，涉及一种碳化硅‑六铝酸钙‑铝复合耐火材料。涉及的一种碳化硅‑六铝酸钙‑铝复合耐火材料以加入量为原料总质量60%～75%的碳化硅颗粒为骨料；复合耐火材料还加入有基质；基质中含有致密六铝酸钙细粉或微粉；所述的基质中还加入了经包覆处理的金属铝粉，粒度范围为10μm～45μm，加入量为原料总质量的2%～8%；骨料、基质与结合剂混合均匀后进行机压成型，干燥后在埋碳气氛下最高温度1500℃～1600℃烧成制得碳化硅‑六铝酸钙‑铝复合材料。本发明改善了基质物相组成，提升了其高温力学性能和材料的高温抗折强度，并同时具有抗侵蚀性能优秀、价格低廉、热震稳定性优秀等特点。
Silicon carbide-calcium hexaluminate-aluminum composite refractory material
一种碳化硅-六铝酸钙-铝复合耐火材料
LI HONGXIA (author) / DU YIHAO (author) / SUN HONGGANG (author) / SI YAOCHEN (author) / ZHAO SHIXIAN (author) / SHANG XINLIAN (author) / XIA MIAO (author) / KANG YINA (author)
2020-09-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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