Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of silicon nitride-based conductive ceramic and molding method of silicon nitride-based conductive ceramic cutting tool
The invention relates to the technical field of ceramic preparation, and in particular relates to a preparation method of silicon nitride-based conductive ceramic and a molding method of a silicon nitride-based conductive ceramic cutting tool. A microstructure of the silicon nitride-based conductive ceramic can be effectively optimized by adding a certain amount of a sintering aid prepared from MO and a rare earth oxide, so that the toughness and the strength of the silicon nitride-based conductive ceramic are significantly improved; improvement of the electric conductivity of the silicon nitride-based conductive ceramic is facilitated by adding a certain amount of conductive phase; the silicon nitride-based conductive ceramic can be processed by an electric spark machining technique; the ceramic cutting tool prepared from the silicon nitride-based conductive ceramic is suitable for a PVD coating technology; in addition, the ceramic cutting tool also plays toughening and strengthening roles; the improvement of the overall performance of the silicon nitride-based conductive ceramic is facilitated by adding a certain amount of a metal phase binder; the cutting tool is fabricated from the silicon nitride-based conductive ceramic through the molding method; the cutting tool with a complicated shape can be prepared; and the silicon nitride-based conductive ceramic cutting tool with relatively excellent performance can be obtained.
Preparation method of silicon nitride-based conductive ceramic and molding method of silicon nitride-based conductive ceramic cutting tool
The invention relates to the technical field of ceramic preparation, and in particular relates to a preparation method of silicon nitride-based conductive ceramic and a molding method of a silicon nitride-based conductive ceramic cutting tool. A microstructure of the silicon nitride-based conductive ceramic can be effectively optimized by adding a certain amount of a sintering aid prepared from MO and a rare earth oxide, so that the toughness and the strength of the silicon nitride-based conductive ceramic are significantly improved; improvement of the electric conductivity of the silicon nitride-based conductive ceramic is facilitated by adding a certain amount of conductive phase; the silicon nitride-based conductive ceramic can be processed by an electric spark machining technique; the ceramic cutting tool prepared from the silicon nitride-based conductive ceramic is suitable for a PVD coating technology; in addition, the ceramic cutting tool also plays toughening and strengthening roles; the improvement of the overall performance of the silicon nitride-based conductive ceramic is facilitated by adding a certain amount of a metal phase binder; the cutting tool is fabricated from the silicon nitride-based conductive ceramic through the molding method; the cutting tool with a complicated shape can be prepared; and the silicon nitride-based conductive ceramic cutting tool with relatively excellent performance can be obtained.
Preparation method of silicon nitride-based conductive ceramic and molding method of silicon nitride-based conductive ceramic cutting tool
WU SHANGHUA (Autor:in) / GU SHANGXIAN (Autor:in) / GUO WEIMING (Autor:in) / ZENG JUNJIE (Autor:in) / LI ANQIONG (Autor:in) / JIANG QIANGGUO (Autor:in) / GAO LENG (Autor:in) / ZHOU MAOPENG (Autor:in)
13.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
PREPARATION METHOD FOR SILICON NITRIDE-BASED MULTIPHASE CONDUCTIVE CERAMIC
| Europäisches Patentamt | 2022
Silicon nitride conductive ceramic and preparation method thereof
| Europäisches Patentamt | 2020
Aluminum nitride-based conductive ceramic and preparation method thereof
| Europäisches Patentamt | 2023