Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thin-wall silicon carbide honeycomb ceramic carrier as well as preparation method and application thereof
The invention discloses a thin-wall silicon carbide honeycomb ceramic carrier and a preparation method and application thereof.The preparation method comprises the following steps that silicon inorganic powder, kaolin powder, a pore forming agent, a binding agent and an auxiliary are taken and mixed to be uniform through a dry method, a mixture A is obtained, and the silicon inorganic powder comprises silicon carbide powder and metal silicon powder; adding water and a lubricant into the mixture A, kneading into mud blocks, and processing into mud sections; extruding the prepared mud section into a honeycomb structure, and then carrying out drying shaping, cutting, punching and hole plugging treatment to obtain a green body; sequentially performing degreasing sintering, atmosphere sintering and oxidation sintering on the green body to obtain a thin-walled silicon carbide powder honeycomb ceramic semi-finished product; the obtained silicon carbide powder honeycomb ceramic semi-finished product is subjected to splicing, edge grinding and edge surrounding treatment in sequence, and a silicon carbide powder honeycomb ceramic finished product is obtained. By adding auxiliaries and flaky materials, the interaction among particles is changed, the plasticity and strength of a mud segment are improved, and the requirement of the market on the thin wall of the silicon carbide powder ceramic carrier in the future can be met.
本发明公开了一种薄壁碳化硅蜂窝陶瓷载体及其制备方法与应用，其制备方法如下：取硅无机粉、高岭土粉、造孔剂、粘结剂和助剂，并将其干法混匀得到混合物A，硅无机粉包括碳化硅粉和金属硅粉；向混合物A中加入水和润滑剂并捏合成泥块，再加工成泥段；将所制得的泥段挤出蜂窝状结构，然后经干燥定型、切割、打孔和堵孔处理得到生坯；将所述生坯依顺序进行脱脂烧结、气氛烧结和氧化烧结，得到薄壁化的碳化硅粉蜂窝陶瓷半成品；将所得碳化硅粉蜂窝陶瓷半成品依顺序进行拼接、磨边和围边处理得到碳化硅粉蜂窝陶瓷成品。通过外加助剂及片状材料，改变颗粒间的相互作用，提高泥段塑性和强度，其能够满足今后市场对碳化硅粉陶瓷载体薄壁化的要求。
Thin-wall silicon carbide honeycomb ceramic carrier as well as preparation method and application thereof
The invention discloses a thin-wall silicon carbide honeycomb ceramic carrier and a preparation method and application thereof.The preparation method comprises the following steps that silicon inorganic powder, kaolin powder, a pore forming agent, a binding agent and an auxiliary are taken and mixed to be uniform through a dry method, a mixture A is obtained, and the silicon inorganic powder comprises silicon carbide powder and metal silicon powder; adding water and a lubricant into the mixture A, kneading into mud blocks, and processing into mud sections; extruding the prepared mud section into a honeycomb structure, and then carrying out drying shaping, cutting, punching and hole plugging treatment to obtain a green body; sequentially performing degreasing sintering, atmosphere sintering and oxidation sintering on the green body to obtain a thin-walled silicon carbide powder honeycomb ceramic semi-finished product; the obtained silicon carbide powder honeycomb ceramic semi-finished product is subjected to splicing, edge grinding and edge surrounding treatment in sequence, and a silicon carbide powder honeycomb ceramic finished product is obtained. By adding auxiliaries and flaky materials, the interaction among particles is changed, the plasticity and strength of a mud segment are improved, and the requirement of the market on the thin wall of the silicon carbide powder ceramic carrier in the future can be met.
本发明公开了一种薄壁碳化硅蜂窝陶瓷载体及其制备方法与应用，其制备方法如下：取硅无机粉、高岭土粉、造孔剂、粘结剂和助剂，并将其干法混匀得到混合物A，硅无机粉包括碳化硅粉和金属硅粉；向混合物A中加入水和润滑剂并捏合成泥块，再加工成泥段；将所制得的泥段挤出蜂窝状结构，然后经干燥定型、切割、打孔和堵孔处理得到生坯；将所述生坯依顺序进行脱脂烧结、气氛烧结和氧化烧结，得到薄壁化的碳化硅粉蜂窝陶瓷半成品；将所得碳化硅粉蜂窝陶瓷半成品依顺序进行拼接、磨边和围边处理得到碳化硅粉蜂窝陶瓷成品。通过外加助剂及片状材料，改变颗粒间的相互作用，提高泥段塑性和强度，其能够满足今后市场对碳化硅粉陶瓷载体薄壁化的要求。
Thin-wall silicon carbide honeycomb ceramic carrier as well as preparation method and application thereof
一种薄壁碳化硅蜂窝陶瓷载体及其制备方法与应用
SEKI HIROSHI (Autor:in) / PAN JIQING (Autor:in) / WU XIONGHUI (Autor:in) / LIU HONGYUE (Autor:in) / ZHANG ZHAOHE (Autor:in) / HUANG FEIHUI (Autor:in) / CHENG GUOYUAN (Autor:in) / XING YANLING (Autor:in) / HAO LIMIAO (Autor:in)
01.12.2023
Patent
Elektronische Ressource
Chinesisch
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