Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-resistivity stable silicon nitride composite ceramic and preparation method thereof
The invention discloses a high-resistivity stable silicon nitride composite ceramic and a preparation method thereof, belongs to the technical field of electrical insulating ceramics, and overcomes the defect of poor resistivity stability of an insulating pillar in the prior art. The preparation method of the high-resistivity stable silicon nitride composite ceramic comprises the following steps: step 1, mixing silicon nitride powder, a sintering aid, a dispersing agent, a binder and water to prepare slurry; the sintering aid is prepared from Y2O3, Al2O3 and MgO, and the mass ratio of the Y2O3 to the Al2O3 to the MgO to the silicon nitride is (0.01 to 0.15) to (0.01 to 0.13) to (0.01 to 0.1) to 1; step 2, preparing granulation powder; step 3, preparing a ceramic green body; step 4, discharging glue; and 5, first-step sintering is carried out under normal pressure, and then second-step sintering is carried out under nitrogen pressure. The silicon nitride composite ceramic with high resistivity stability prepared by the invention has relatively high resistivity stability.
一种高电阻率稳定性氮化硅复合陶瓷及其制备方法，属于电工绝缘陶瓷技术领域，克服现有技术中绝缘支柱电阻率稳定性较差的缺陷。本发明高电阻率稳定性氮化硅复合陶瓷的制备方法包括以下步骤：步骤1、将氮化硅粉末、烧结助剂、分散剂、粘结剂和水混合制备浆料；所述烧结助剂包括Y2O3、Al2O3和MgO，Y2O3：Al2O3：MgO：氮化硅的质量比为(0.01‑0.15)：(0.01‑0.13)：(0.01‑0.1)：1；步骤2、制备造粒粉；步骤3、制得陶瓷生坯；步骤4、排胶；步骤5、在常压下进行第一步烧结，随后在氮气压力下进行第二步烧结。本发明制得的高电阻率稳定性氮化硅复合陶瓷具有较高的电阻率稳定性。
High-resistivity stable silicon nitride composite ceramic and preparation method thereof
The invention discloses a high-resistivity stable silicon nitride composite ceramic and a preparation method thereof, belongs to the technical field of electrical insulating ceramics, and overcomes the defect of poor resistivity stability of an insulating pillar in the prior art. The preparation method of the high-resistivity stable silicon nitride composite ceramic comprises the following steps: step 1, mixing silicon nitride powder, a sintering aid, a dispersing agent, a binder and water to prepare slurry; the sintering aid is prepared from Y2O3, Al2O3 and MgO, and the mass ratio of the Y2O3 to the Al2O3 to the MgO to the silicon nitride is (0.01 to 0.15) to (0.01 to 0.13) to (0.01 to 0.1) to 1; step 2, preparing granulation powder; step 3, preparing a ceramic green body; step 4, discharging glue; and 5, first-step sintering is carried out under normal pressure, and then second-step sintering is carried out under nitrogen pressure. The silicon nitride composite ceramic with high resistivity stability prepared by the invention has relatively high resistivity stability.
一种高电阻率稳定性氮化硅复合陶瓷及其制备方法，属于电工绝缘陶瓷技术领域，克服现有技术中绝缘支柱电阻率稳定性较差的缺陷。本发明高电阻率稳定性氮化硅复合陶瓷的制备方法包括以下步骤：步骤1、将氮化硅粉末、烧结助剂、分散剂、粘结剂和水混合制备浆料；所述烧结助剂包括Y2O3、Al2O3和MgO，Y2O3：Al2O3：MgO：氮化硅的质量比为(0.01‑0.15)：(0.01‑0.13)：(0.01‑0.1)：1；步骤2、制备造粒粉；步骤3、制得陶瓷生坯；步骤4、排胶；步骤5、在常压下进行第一步烧结，随后在氮气压力下进行第二步烧结。本发明制得的高电阻率稳定性氮化硅复合陶瓷具有较高的电阻率稳定性。
High-resistivity stable silicon nitride composite ceramic and preparation method thereof
一种高电阻率稳定性氮化硅复合陶瓷及其制备方法
NIE JINGKAI (Autor:in) / ZHANG YIMING (Autor:in) / HOU DONG (Autor:in) / HAN YU (Autor:in) / ZHU ZHIXIANG (Autor:in) / LIU HUI (Autor:in) / JI JUN (Autor:in) / XU ZONGCHAO (Autor:in) / LU LICHENG (Autor:in)
04.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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