Low-shrinkage porous ceramic component, injection feed and preparation method thereof

Abstract

The invention relates to the field of ceramics, and particularly discloses a low-shrinkage porous ceramic component, an injection feed and a preparation method thereof. The porous ceramic component comprises inorganic framework whiskers, an inorganic bonding material and an inorganic filling material, and the inorganic framework whiskers comprise one or more of SiC whiskers, Al2O3 whiskers, SiO2 whiskers and AlN whiskers; the preparation method comprises the following steps: uniformly ball-milling the treated ceramic components, internally mixing with an injection accelerator, an injection skeleton agent, an injection filler and a plasticizer, adding into a granulator to prepare the injection feed after the internal mixing is completed, finally injecting the injection feed into a ceramic green body, discharging glue, and sintering to obtain the low-shrinkage porous ceramic. The low-shrinkage porous ceramic disclosed by the invention can be applied to the fields of electronic cigarettes, atomization medical treatment and atomization cosmetic instruments, and has the advantages of low shrinkage rate, controllable size, high product percent of pass and the like.

Description

technical field [0001] This application relates to the field of ceramics, and more particularly, it relates to a low-shrinkage porous ceramic. Background technique [0002] Porous ceramic is a ceramic material with high porosity prepared by forming and high-temperature sintering process. It has high temperature resistance, high pressure resistance, acid, alkali and organic medium corrosion resistance, good biological inertia, controllable pore structure and high Excellent porosity, long service life, small bulk density, large specific surface area, good product regeneration performance, etc., can be applied to precision filtration and separation of various media, high-pressure gas exhaust silencer, gas distribution and electrolytic diaphragm and electronic smoke Core and other fields. [0003] However, porous ceramics will inevitably shrink during debinding and sintering. The sintering shrinkage rate of general porous ceramics is 3-15%. Both will cause inconsistency in sin...

AI Technical Summary

Problems solved by technology

[0003] However, porous ceramics will inevitably shrink during debinding and sintering. The sintering shrinkage rate of general porous ceramics is 3-15%. Both will cause inconsistency in sintering shrinkage, which will lead to fluctuations in performance parameters such as the size, internal pore size, porosity, strength, and water absorption of porous ceramic products, which will affect the performance stability of porous ceramic products. Therefore, in order to improve porous ceramic products properties, it is urgent to prepare a shrinkage-stable porous ceramic material