A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of silicon carbide materials, and discloses a silicon carbide composite material and a preparation method thereof. The silicon carbide composite material is prepared from, by weight, 70%-80% of silicon carbide powder, 3%-15% of metal powder, 1%-5% of graphene, 2%-10% of a binder and 10%-20% of water. The method comprises the following steps: mixing silicon carbide powder, metal powder and graphene in a powder mixer, and carrying out ball milling; mixing a binder with water to obtain a mixed binder; adding the mixed binder into the mixed powder for mixing, and then placing the mixture in a hydraulic forming machine for hydraulic forming to obtain a blank; and calcining the blank in a non-oxidizing atmosphere sintering furnace, and performing cooling to obtain the silicon carbide composite material. The composite material disclosed by the invention is low in firing temperature, energy-saving, simple in production process and low in productioncost, has the advantages of long service life, high compressive strength, good thermal shock resistance, good oxidation resistance and the like, and has wide economic and social values.
本发明属于碳化硅材料技术领域，公开一种碳化硅复合材料及其制备方法，包括如下重量百分含量的原料：碳化硅粉体70‑80％，金属粉3‑15％，石墨烯1‑5％，粘结剂2‑10％，水10‑20％；其方法包括：将碳化硅粉体、金属粉、石墨烯置于混粉机中混合、球磨；将粘结剂与水混合得到混合粘结剂；将混合粘结剂加入混合粉体中混料，然后置于液压成型得到胚体；将坯体置于非氧化性气氛烧结炉中煅烧，冷却至即得碳化硅复合材料。本发明复合材料烧成温度低，节能，生产工艺简单，生产成本低，且具有使用寿命长，耐压强度高、抗热震性能好和抗氧化性能好等优点，具有广泛的经济和社会价值。
The invention belongs to the technical field of silicon carbide materials, and discloses a silicon carbide composite material and a preparation method thereof. The silicon carbide composite material is prepared from, by weight, 70%-80% of silicon carbide powder, 3%-15% of metal powder, 1%-5% of graphene, 2%-10% of a binder and 10%-20% of water. The method comprises the following steps: mixing silicon carbide powder, metal powder and graphene in a powder mixer, and carrying out ball milling; mixing a binder with water to obtain a mixed binder; adding the mixed binder into the mixed powder for mixing, and then placing the mixture in a hydraulic forming machine for hydraulic forming to obtain a blank; and calcining the blank in a non-oxidizing atmosphere sintering furnace, and performing cooling to obtain the silicon carbide composite material. The composite material disclosed by the invention is low in firing temperature, energy-saving, simple in production process and low in productioncost, has the advantages of long service life, high compressive strength, good thermal shock resistance, good oxidation resistance and the like, and has wide economic and social values.
本发明属于碳化硅材料技术领域，公开一种碳化硅复合材料及其制备方法，包括如下重量百分含量的原料：碳化硅粉体70‑80％，金属粉3‑15％，石墨烯1‑5％，粘结剂2‑10％，水10‑20％；其方法包括：将碳化硅粉体、金属粉、石墨烯置于混粉机中混合、球磨；将粘结剂与水混合得到混合粘结剂；将混合粘结剂加入混合粉体中混料，然后置于液压成型得到胚体；将坯体置于非氧化性气氛烧结炉中煅烧，冷却至即得碳化硅复合材料。本发明复合材料烧成温度低，节能，生产工艺简单，生产成本低，且具有使用寿命长，耐压强度高、抗热震性能好和抗氧化性能好等优点，具有广泛的经济和社会价值。
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