| abstract |
The invention discloses a method for forming rare earth praseodymium holmium-stabilized silicon nitride ceramics, comprising the following steps: S1, material preparation: silicon carbide powder, sintering aids, binders, acrylamide organic monomers, catalysts and phosphate glass are prepared Weighing for use, S2. Mixing: Add silicon carbide powder, sintering aids, binders, acrylamide organic monomers, catalysts and phosphate glass into a mixer for dry mixing, add water and mix to obtain a slurry, S3 , Filtration and pressurization: filter the slurry, after the filtration is completed, pump it into a static press for pressure molding, S4, embryo body preparation: light curing and molding of the embryo body after static pressure molding, S5, degreasing cleaning: curing molding The final embryo body is degreased, and the slurry is mixed with light-curing and then degreased to reduce the air degree in the embryo body and increase the quality after forming. The pressure value in , makes the strength higher and the forming speed faster. |