Method for manufacturing the porous Silicon Nitride ceramics and the porous Silicon Nitride ceramics

文件类型：PDF文档
文件大小：241K
The present invention refers to magnetic chain synthesis reaction by high strength porous silicon nitride ceramics manufacturing method and manufacturing method in the second 30-50% porosity produced by 60 MPa or more porous silicon nitride ceramics the burglar getting broken off relates to manufacturing method. The present invention refers to the powder of mixing a powder silicon nitride and silicon powder for negative electrode material of step of manufacturing a mixture, said powder mixture to a pressure molding step of manufacturing a the body, said molded body and a high-pressure a nitrogen ambient under the magnetic chain synthesis reaction, a steps : cooling the ceramic manufacture ceramics of silicon nitride porous including a method and LCD manufactured by this method provides porous silicon nitride ceramic. According to the present invention, a nitrogen ambient under high pressure atmospheres of 10-70 at room temperature within a few minutes to a modem porous ceramic by a manufacturing process time and the amount of, substantially free from energy dissipation in, expensive rare earth metal oxide such as generated in the sintering auxiliary copyright 2000.