A sic whisker with c-alpo 4 Preparation method of powder synergistically modified mullite coating
A synergistic modification and mullite technology, which is applied in the field of high-temperature anti-oxidation/anti-corrosion coating preparation, can solve the difficulties in the preparation of large components and special-shaped parts, the precise control of difficult coating thickness, and the poor bonding force between the coating and the substrate and other problems, to achieve the effect of improving easy cracking, improving dynamic erosion resistance, and low preparation cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0043] Step 1 Preparation of mullite precursor gel by sol-gel method
[0044] Dissolve 20.83g of tetraethyl orthosilicate and 112.53g of aluminum nitrate nonahydrate in 100ml of absolute ethanol, add 3.60g of glacial acetic acid, heat and react in a water bath at 60°C for 4 hours, then raise the temperature to 80°C for 16 hours in a water bath to obtain a mullite precursor to obtain a milky white mullite precursor gel A;
[0045] Step 2 Preparation of mullite powder by sol-gel method
[0046] Dissolve 20.83g of tetraethyl orthosilicate and 112.53g of aluminum nitrate nonahydrate in 100ml of ethanol, add 3.60g of glacial acetic acid, heat and react in a water bath at 60°C for 4 hours, then raise the temperature to 80°C for 16 hours in a water bath to obtain the mullite precursor gel. Gel and gel are dried at 60-80°C for 72 hours, then ball-milled at 200r / min for 2 hours, then put into a muffle furnace, set the heating rate at 5°C / min, kept at 1300°C for 2 hours, and then coole...
Embodiment 2
[0054] Step 1 Preparation of mullite precursor gel by sol-gel method
[0055] Dissolve 20.83g of tetraethyl orthosilicate and 112.53g of aluminum nitrate nonahydrate in 100ml of absolute ethanol, add 3.60g of glacial acetic acid, heat and react in a water bath at 60°C for 4 hours, then raise the temperature to 80°C for 16 hours in a water bath to obtain a mullite precursor to obtain a milky white mullite precursor gel A;
[0056] Step 2 Preparation of mullite powder by sol-gel method
[0057] Dissolve 20.83g of tetraethyl orthosilicate and 112.53g of aluminum nitrate nonahydrate in 100ml of ethanol, add 3.60g of glacial acetic acid, heat and react in a water bath at 60°C for 4 hours, then raise the temperature to 80°C for 16 hours in a water bath to obtain the mullite precursor gel. Gel and gel are dried at 60-80°C for 72 hours, then ball-milled at 200r / min for 2 hours, then put into a muffle furnace, set the heating rate at 5°C / min, kept at 1300°C for 2 hours, and then coole...
Embodiment 3
[0065] Step 1 Preparation of mullite precursor gel by sol-gel method
[0066] Dissolve 20.83g of tetraethyl orthosilicate and 112.53g of aluminum nitrate nonahydrate in 100ml of absolute ethanol, add 3.60g of glacial acetic acid, heat and react in a water bath at 60°C for 4 hours, then raise the temperature to 80°C for 16 hours in a water bath to obtain a mullite precursor The gel was left to age in a sealed environment at room temperature for 4 to 6 months to obtain a milky white mullite precursor gel A.
[0067] Step 2 Preparation of mullite powder by sol-gel method
[0068] Dissolve 20.83g of tetraethyl orthosilicate and 112.53g of aluminum nitrate nonahydrate in 100ml of ethanol, add 3.60g of glacial acetic acid, heat and react in a water bath at 60°C for 4 hours, then raise the temperature to 80°C for 16 hours in a water bath to obtain the mullite precursor gel. Gel and gel are dried at 60-80°C for 72 hours, then ball-milled at 200r / min for 2 hours, then put into a muffl...
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
thickness | 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