Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a recrystallized silicon carbide material and a preparation method thereof and belongs to the field of materials. The recrystallized silicon carbide material comprises 70-90 parts of silicon carbide micro powder, 1-10 parts of aluminum oxide, 2-5 parts of yttrium oxide, 1-5 parts of lanthanum oxide and 1-10 parts of polyborosiloxane. The preparation method comprises the following steps: fully mixing the silicon carbide micropowder, the aluminum oxide, the yttrium oxide and the lanthanum oxide, adding water to prepare a slurry, grinding, adding the polyborosiloxane, andperforming mixing and sintering at high temperature to obtain the material. According to the invention, the high temperature resistance and impact resistance of the material are improved, the breakingstrength is improved, and the toughness of the recrystallized silicon carbide material is greatly enhanced.
本发明公开了一种重结晶碳化硅材料及其制备方法，属于材料领域。包括碳化硅微粉70‑90份、氧化铝1‑10份、氧化钇2‑5份、氧化镧1‑5份、聚硼硅氧烷1‑10份。制备方法为将碳化硅微粉、氧化铝、氧化钇和氧化镧充分混合后，加入水制成浆料研磨，再加入聚硼硅氧烷混合，高温烧结得到。本发明提高了材料的耐高温性能和抗冲击能力，提升了断裂强度，大大增强了重结晶碳化硅材料的韧性。
The invention discloses a recrystallized silicon carbide material and a preparation method thereof and belongs to the field of materials. The recrystallized silicon carbide material comprises 70-90 parts of silicon carbide micro powder, 1-10 parts of aluminum oxide, 2-5 parts of yttrium oxide, 1-5 parts of lanthanum oxide and 1-10 parts of polyborosiloxane. The preparation method comprises the following steps: fully mixing the silicon carbide micropowder, the aluminum oxide, the yttrium oxide and the lanthanum oxide, adding water to prepare a slurry, grinding, adding the polyborosiloxane, andperforming mixing and sintering at high temperature to obtain the material. According to the invention, the high temperature resistance and impact resistance of the material are improved, the breakingstrength is improved, and the toughness of the recrystallized silicon carbide material is greatly enhanced.
本发明公开了一种重结晶碳化硅材料及其制备方法，属于材料领域。包括碳化硅微粉70‑90份、氧化铝1‑10份、氧化钇2‑5份、氧化镧1‑5份、聚硼硅氧烷1‑10份。制备方法为将碳化硅微粉、氧化铝、氧化钇和氧化镧充分混合后，加入水制成浆料研磨，再加入聚硼硅氧烷混合，高温烧结得到。本发明提高了材料的耐高温性能和抗冲击能力，提升了断裂强度，大大增强了重结晶碳化硅材料的韧性。
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