A kind of tial-based high temperature resistant self-lubricating composite material and its preparation method
A composite material and self-lubricating technology, applied in the field of materials, can solve the problems of large friction coefficient and wear amount, limit the application of materials, etc., and achieve the effect of improving brittle defects, improving mechanical properties, and good creep performance.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0023] According to the mass percentage, add 30% Ti with a particle size of 40 mesh 3 SiC 2 , the rest is sintered TiAl alloy powder with a particle size of 300 mesh, the mass percent of the TiAl alloy powder composition is 20% Al powder, 1% Cr powder, and the rest is Ti powder, and the above powder is uniformly mixed by planetary ball mill , the mixing process is carried out in an argon atmosphere, alcohol is used as a dispersant, the amount added is 3ml per 100g of mixed powder, the ball-to-material ratio is 2:1, the speed of the ball mill is set to 300r / min, and the ball milling time is 1h (forward and reverse Alternate operation, once every 30 minutes); after drying the uniformly mixed powder, put it into a cylindrical mold for pre-press molding, the pressure is 25MPa, the holding time is 10s, and then the pre-press block is dried; for the dried SPS sintering is performed on the pre-pressed block, the pressure is 20MPa, the vacuum degree is 10Pa, heated to 800°C, kept for...
Embodiment 2
[0025] According to the mass percentage, add 5% Ti with a particle size of 80 mesh 3 SiC 2 , the rest is sintered TiAl alloy powder with a particle size of 300 mesh, the mass percent of the TiAl alloy powder composition is 20% Al powder, 3% Cr powder, and the rest is Ti powder, and the above powder is uniformly ball-mixed by a planetary ball mill , the mixing process is carried out in an argon atmosphere, alcohol is used as a dispersant, the addition amount is 5ml per 100g of mixed powder, the ball-to-material ratio is 2:1, the ball mill speed is set to 300r / min, and the ball milling time is 2h (forward and reverse Alternate operation, once every 30 minutes); after drying the uniformly mixed powder, put it into a cylindrical mold for pre-press molding, the pressure is 25MPa, the holding time is 10s, and then the pre-press block is dried; for the dried SPS sintering is performed on the pre-pressed block, the pressure is 20MPa, the vacuum degree is 10Pa, heated to 1000°C, kept ...
Embodiment 3
[0027] According to the mass percentage, add 20% Ti with a particle size of 80 mesh 3 SiC 2 , the rest is sintered TiAl alloy powder with a particle size of 100 mesh, the mass percent of the TiAl alloy powder composition is 20% Al powder, 1% Cr powder, and the rest is Ti powder, and the above powder is uniformly ball-mixed by a planetary ball mill , the mixing process is carried out in an argon atmosphere, alcohol is used as a dispersant, the amount added is 5ml per g of mixed powder, the ball-to-material ratio is 2:1, the speed of the ball mill is set to 400r / min, and the ball milling time is 3h (forward and reverse Alternate operation, once every 30 minutes); After drying the uniformly mixed powder, put it into a cylindrical mold for pre-press molding, the pressure is 10MPa, the holding time is 10s, and then the pre-press block is dried; for the dried SPS sintering is performed on the pre-pressed block, the pressure is 20MPa, the vacuum degree is 10Pa, heated to 1200°C, kep...
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
particle size | 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