Multiphase ceramic material and preparation method thereof, and preparation method of porous ceramic body: Fid-Bau Portal

Multiphase ceramic material and preparation method thereof, and preparation method of porous ceramic body

XIAO YUCHENG

The invention discloses a multiphase ceramic material and a preparation method thereof and a preparation method of a porous ceramic body, the porous ceramic body is prepared from the multiphase ceramic material, diatomite, low-temperature glass powder, a pore-forming agent, paraffin and a stearic acid solution, and the multiphase ceramic material comprises silicon oxide powder, alumina powder, calcite powder, kaolinite powder, dolomite powder and the pore-forming agent. The multiphase ceramic material is prefabricated through a pre-synthesis technology, raw materials with a pore-forming effect and a toughening effect and the like can be correspondingly introduced according to application requirements to control the morphology and binding force of the raw materials, then the multiphase ceramic material is used for manufacturing a porous ceramic green body, and then sintering is conducted; and the porous ceramic body with low shrinkage, low deformation and high strength can be prepared by adjusting corresponding ingredients.

本发明公开了一种复相陶瓷材料及其制备方法和多孔陶瓷体的制备方法，所述多孔陶瓷体由复相陶瓷材料、硅藻土、低温玻璃粉、造孔剂、石蜡、硬脂酸溶液制成，复相陶瓷材料包括氧化硅粉、氧化铝粉、方解石粉、高岭石粉、白云石粉、造孔剂。本发明通过预合成技术预制复相陶瓷材料，可根据应用需求相应地引入具有造孔效果、增韧效果的原料等控制原材料的形貌及结合力，然后利用该类复相陶瓷材料制作多孔陶瓷生坯后进行烧结，通过调整相应的配料组成即可制备出低收缩、低变形、强度高的多孔陶瓷体。

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