Method for manufacturing a SiC ceramic part
AssigneeJiageng (Jiangsu) Special Materials Co., Ltd.
InventorJiaji Lin
Life of this patent
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Abstract
A method for manufacturing a SiC ceramic part is provided. The method includes mixing SiC micron powders, nano carbon black and an additive in a solvent to obtain a spray slurry. The spray slurry is subjected to spray granulation to obtain SiC granulation powders. The SiC granulation powders and SiC unprocessed powders are mixed and printed by 3DP to obtain a green body. Then the green body is impregnated in a phenolic resin precursor and undergoes a cracking reaction to obtain a compact body. Finally, the compact body is subjected to reactive sintering to obtain the SiC ceramic part. The method is beneficial to improving the density and the strength of the SiC ceramic part.
Claims19
A method for manufacturing a SiC ceramic part, comprising:
- mixing SiC micron powders, nano carbon black and an additive in a solvent to obtain a spray slurry;
- performing spray granulation to the spray slurry to obtain SiC granulation powders;
- mixing the SiC granulation powders and SiC unprocessed powders to obtain a mixture and printing the mixture by three dimensional printing to obtain a green body;
- impregnating the green body in a phenolic resin precursor and performing a cracking reaction to the green body after being impregnated to obtain a compact body, wherein the phenolic resin precursor comprises a phenolic resin and a solvent, the phenolic resin comprises p-tert-butyl phenolic resin, and the solvent in the phenolic resin precursor comprises methanol;
- and
- performing reactive sintering to the compact body to obtain the SiC ceramic part.
Dependencies are inferred from the claim text.