A preparing method of a sintered silicon carbide porous material
A technology for sintering silicon carbide and porous materials, which is applied in ceramic products, applications, household appliances, etc., can solve the problems of high preparation cost of porous silicon carbide ceramics, high price of pore-forming agents, environmental pollution, etc., and achieve reduction of production and preparation costs, Facilitate sintering and molding, shorten the effect of the preparation process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0026] In this embodiment, the preparation method of sintered silicon carbide porous material comprises the following steps:
[0027] 1) After the main material is processed, it is a finished slurry, and the main material includes SiC pellets and B 4 C pellets, B 4 C pellets are used as sintering aids;
[0028] 2), adding auxiliary materials to the finished slurry product obtained in step 1) to prepare the pre-casting slurry, and keep stirring when adding, wherein the auxiliary materials include acrylamide, methylenebisacrylamide, ammonium polyacrylate;
[0029] 3) Die casting, add ammonium persulfate to the slurry before casting and stir evenly before die casting, demoulding into a green body;
[0030] 4), dehydration and degreasing, sintering, dehydration and degreasing is carried out in a drying environment for the green body, the drying environment is realized by room temperature through a heating process, and the final drying temperature of the drying environment (this te...
Embodiment 2
[0032] In this embodiment, the preparation method of sintered silicon carbide porous material comprises the following steps:
[0033] 1) After the main material is processed, it is a finished slurry, and the main material includes SiC pellets and B 4 C pellets, B 4 C pellets are used as sintering aids;
[0034] 2), adding auxiliary materials to the finished slurry product obtained in step 1) to prepare the pre-casting slurry, and keep stirring when adding, wherein the auxiliary materials include acrylamide, methylenebisacrylamide, ammonium polyacrylate;
[0035] 3) Die casting, add ammonium persulfate to the slurry before casting and stir evenly before die casting, demoulding into a green body;
[0036] 4), dehydration and degreasing, sintering, dehydration and degreasing is carried out in a drying environment for the green body, and the drying environment is realized through a heating process at room temperature, and the final drying temperature of the drying environment (t...
Embodiment 3
[0038] In this embodiment, the preparation method of sintered silicon carbide porous material comprises the following steps:
[0039] 1) After the main material is processed, it is a finished slurry, and the main material includes SiC pellets and B 4 C pellets, B 4 C pellets are used as sintering aids;
[0040] 2), adding auxiliary materials to the finished slurry product obtained in step 1) to prepare the pre-casting slurry, and keep stirring when adding, wherein the auxiliary materials include acrylamide, methylenebisacrylamide, ammonium polyacrylate;
[0041] 3) Die casting, add ammonium persulfate to the slurry before casting and stir evenly before die casting, demoulding into a green body;
[0042] 4), dehydration and degreasing, sintering, dehydration and degreasing is carried out in a drying environment for the green body, and the drying environment is realized through a heating process at room temperature, and the final drying temperature of the drying environment (t...
PUM
Property | Measurement | Unit |
---|---|---|
density | aaaaa | aaaaa |
density | aaaaa | aaaaa |
flexural strength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com