Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Super-thick silicon carbide ceramic plate and preparation method thereof
The invention discloses a super-thick silicon carbide ceramic plate and a preparation method thereof. (1) preparing silicon carbide ceramic powder and an organic additive; (2) mixing and grinding an organic additive and distilled water, respectively adding silicon carbide ceramic powder, ammonia water, ammonium polyacrylate and n-caprylic alcohol, and grinding to obtain silicon carbide granulation powder 1, 2, 3 and 4 slurry; then respectively adding ammonium polyacrylate and n-caprylic alcohol, stirring and granulating, and spraying a release agent to obtain silicon carbide granulation powder 1, 2, 3 and 4; and (3) uniformly distributing the silicon carbide granulation powder in a mold in sequence, carrying out compression molding, demolding and drying, and firing to obtain the super-thick silicon carbide ceramic flat plate. The ultra-thick silicon carbide ceramic plate obtained by the invention has excellent bending strength and compressive strength, solves the problem of cracking in pressing and firing, and meets the use requirements; secondly, the insertion sequences of the powder layers are diversified, so that silicon carbide ceramic plate materials with different thicknesses can be obtained, different use requirements are met, and the wide market prospect is achieved.
本发明公开了一种超厚碳化硅陶瓷平板及其制备方法，步骤如下；(1)制备碳化硅陶瓷粉及有机添加剂；(2)将有机添加剂和蒸馏水混合研磨后，分别加入碳化硅陶瓷粉、氨水、聚丙烯酸铵、正辛醇研磨，获得碳化硅造粒粉1、2、3、4料浆；然后分别加入聚丙烯酸铵和正辛醇搅拌造粒，喷入脱模剂，获得碳化硅造粒粉1、2、3、4；(3)将碳化硅造粒粉按顺序均匀布于模具中，压制成型脱模干燥后，烧制成超厚碳化硅陶瓷平板。本发明获得的超厚碳化硅陶瓷平板具备优越的弯曲强度和抗压强度，解决了压制烧制中的开裂问题，符合使用要求；其次粉体层的插入顺序多样可获得不同厚度的碳化硅陶瓷平板材料，满足不同的使用需求，具有广泛的市场前景。
Super-thick silicon carbide ceramic plate and preparation method thereof
The invention discloses a super-thick silicon carbide ceramic plate and a preparation method thereof. (1) preparing silicon carbide ceramic powder and an organic additive; (2) mixing and grinding an organic additive and distilled water, respectively adding silicon carbide ceramic powder, ammonia water, ammonium polyacrylate and n-caprylic alcohol, and grinding to obtain silicon carbide granulation powder 1, 2, 3 and 4 slurry; then respectively adding ammonium polyacrylate and n-caprylic alcohol, stirring and granulating, and spraying a release agent to obtain silicon carbide granulation powder 1, 2, 3 and 4; and (3) uniformly distributing the silicon carbide granulation powder in a mold in sequence, carrying out compression molding, demolding and drying, and firing to obtain the super-thick silicon carbide ceramic flat plate. The ultra-thick silicon carbide ceramic plate obtained by the invention has excellent bending strength and compressive strength, solves the problem of cracking in pressing and firing, and meets the use requirements; secondly, the insertion sequences of the powder layers are diversified, so that silicon carbide ceramic plate materials with different thicknesses can be obtained, different use requirements are met, and the wide market prospect is achieved.
本发明公开了一种超厚碳化硅陶瓷平板及其制备方法，步骤如下；(1)制备碳化硅陶瓷粉及有机添加剂；(2)将有机添加剂和蒸馏水混合研磨后，分别加入碳化硅陶瓷粉、氨水、聚丙烯酸铵、正辛醇研磨，获得碳化硅造粒粉1、2、3、4料浆；然后分别加入聚丙烯酸铵和正辛醇搅拌造粒，喷入脱模剂，获得碳化硅造粒粉1、2、3、4；(3)将碳化硅造粒粉按顺序均匀布于模具中，压制成型脱模干燥后，烧制成超厚碳化硅陶瓷平板。本发明获得的超厚碳化硅陶瓷平板具备优越的弯曲强度和抗压强度，解决了压制烧制中的开裂问题，符合使用要求；其次粉体层的插入顺序多样可获得不同厚度的碳化硅陶瓷平板材料，满足不同的使用需求，具有广泛的市场前景。
Super-thick silicon carbide ceramic plate and preparation method thereof
一种超厚碳化硅陶瓷平板及其制备方法
REN YI (Autor:in) / LIU FUTIAN (Autor:in) / ZHU MIAOHUA (Autor:in) / TANG ZHUXING (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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