A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Silicon nitride multiphase ceramic material for insulating support and preparation method of silicon nitride multiphase ceramic material
The invention discloses a silicon nitride multiphase ceramic material for insulating support and a preparation method thereof, belongs to the technical field of silicon nitride multiphase ceramic materials, and overcomes the defects of low toughness and insufficient volume resistivity temperature stability of the silicon nitride ceramic material. The preparation method of the silicon nitride composite ceramic material for the insulation support comprises the following steps: step 1, mixing raw materials to obtain mixed powder; the silicon nitride powder comprises first silicon nitride powder and second silicon nitride powder; the average particle size D50 of the first silicon nitride powder is 0.1-0.5 [mu] m; the average particle size D50 of the second silicon nitride powder is 0.7-1.2 [mu] m; the mass ratio of the first silicon nitride powder to the second silicon nitride powder is (1-2): 1; step 2, pressing and forming a ceramic body; 3, in the nitrogen atmosphere, heat preservation is conducted for 2-4 h at the temperature of 1550-1650 DEG C; keeping the temperature at 1780-1850 DEG C for 2-4 hours; and cooling to 1200-1400 DEG C, and keeping the temperature for 2-4 hours. The silicon nitride composite ceramic material has relatively high toughness and resistivity temperature stability.
一种绝缘支撑用氮化硅复相陶瓷材料及其制备方法，属于氮化硅复相陶瓷材料技术领域，克服氮化硅陶瓷材料韧性低、体积电阻率温度稳定性不足的缺陷。本发明绝缘支撑用氮化硅复相陶瓷材料的制备方法包括以下步骤：步骤1、将原料混合得到混合粉料；所述氮化硅粉包括第一氮化硅粉和第二氮化硅粉；所述第一氮化硅粉粒径平均值D50为0.1～0.5μm；所述第二氮化硅粉粒径平均值D50为0.7～1.2μm；所述第一氮化硅粉和第二氮化硅粉的质量比为(1～2)：1；步骤2、压制成型陶瓷坯体；步骤3、在氮气气氛下，1550～1650℃保温2～4h；1780～1850℃保温2～4h；降温至1200～1400℃，保温2～4h。氮化硅复相陶瓷材料具有较高的韧性和电阻率温度稳定性。
Silicon nitride multiphase ceramic material for insulating support and preparation method of silicon nitride multiphase ceramic material
The invention discloses a silicon nitride multiphase ceramic material for insulating support and a preparation method thereof, belongs to the technical field of silicon nitride multiphase ceramic materials, and overcomes the defects of low toughness and insufficient volume resistivity temperature stability of the silicon nitride ceramic material. The preparation method of the silicon nitride composite ceramic material for the insulation support comprises the following steps: step 1, mixing raw materials to obtain mixed powder; the silicon nitride powder comprises first silicon nitride powder and second silicon nitride powder; the average particle size D50 of the first silicon nitride powder is 0.1-0.5 [mu] m; the average particle size D50 of the second silicon nitride powder is 0.7-1.2 [mu] m; the mass ratio of the first silicon nitride powder to the second silicon nitride powder is (1-2): 1; step 2, pressing and forming a ceramic body; 3, in the nitrogen atmosphere, heat preservation is conducted for 2-4 h at the temperature of 1550-1650 DEG C; keeping the temperature at 1780-1850 DEG C for 2-4 hours; and cooling to 1200-1400 DEG C, and keeping the temperature for 2-4 hours. The silicon nitride composite ceramic material has relatively high toughness and resistivity temperature stability.
一种绝缘支撑用氮化硅复相陶瓷材料及其制备方法，属于氮化硅复相陶瓷材料技术领域，克服氮化硅陶瓷材料韧性低、体积电阻率温度稳定性不足的缺陷。本发明绝缘支撑用氮化硅复相陶瓷材料的制备方法包括以下步骤：步骤1、将原料混合得到混合粉料；所述氮化硅粉包括第一氮化硅粉和第二氮化硅粉；所述第一氮化硅粉粒径平均值D50为0.1～0.5μm；所述第二氮化硅粉粒径平均值D50为0.7～1.2μm；所述第一氮化硅粉和第二氮化硅粉的质量比为(1～2)：1；步骤2、压制成型陶瓷坯体；步骤3、在氮气气氛下，1550～1650℃保温2～4h；1780～1850℃保温2～4h；降温至1200～1400℃，保温2～4h。氮化硅复相陶瓷材料具有较高的韧性和电阻率温度稳定性。
Silicon nitride multiphase ceramic material for insulating support and preparation method of silicon nitride multiphase ceramic material
一种绝缘支撑用氮化硅复相陶瓷材料及其制备方法
HAN YU (author) / HOU DONG (author) / NIE JINGKAI (author) / ZHANG YIMING (author) / ZHU ZHIXIANG (author) / LIU HUI (author) / JI JUN (author) / XU ZONGCHAO (author) / HE QIANG (author)
2024-07-02
Patent
Electronic Resource
Chinese
PREPARATION METHOD FOR SILICON NITRIDE-BASED MULTIPHASE CONDUCTIVE CERAMIC
| European Patent Office | 2022
Preparation method of multiphase silicon carbide ceramic and multiphase silicon carbide ceramic
| European Patent Office | 2024
| European Patent Office | 2023
| European Patent Office | 2024
Nitride red multiphase fluorescent ceramic and preparation method thereof
| European Patent Office | 2020