Y2O3-MgO nano-composite ceramic and preparation method thereof
A multiphase ceramic, y2o3-mgo technology, which is applied in the field of Y2O3-MgO nanocomposite ceramics and its preparation, achieves the effects of low cost of raw materials, improved mechanical strength and simple process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0038] The invention relates to a new type of infrared transparent Y 2 O 3 -MgO nano-composite ceramic and its preparation method belong to the technical field of transparent ceramic preparation. It is characterized by adopting sol-gel method to prepare Y 2 O 3 -MgO nanocomposite powder, and use spark plasma sintering (SPS), hot isostatic pressing (HIP) or hot pressing sintering (HP) to prepare infrared transparent Y 2 O 3 -MgO nanocomposite ceramics. When the sol-gel method is adopted, the metal ions can be mixed at the molecular level, and the uniform distribution of the two phases of the prepared nano-oxide composite powder can be ensured. In addition, a large amount of heat and gas are released during the reaction, which improves the crystallization performance and dispersibility of the powder, and reduces the particle size of the powder. Compared with traditional methods (spray pyrolysis method, co-precipitation method, etc.), the cost of using this method to prepare powde...
Example Embodiment
[0075] Example 1
[0076] In a certain amount of Y(NO 3 ) 3 And Mg(NO 3 ) 2 To the mixed solution, add citric acid monohydrate and ethylene glycol, and then calibrate the total solution to 160ml. The concentrations of each component are citric acid 0.25mol / L, ethylene glycol 0.08mol / L, Y(NO 3 ) 3 0.23mol / L, Mg(NO 3 ) 2 It is 0.46mol / L. Stir the solution evenly, put it into a preheated 200°C muffle furnace, raise it to 800°C at 1°C / min, keep it for 1 hour, and then cool down naturally. Get Y 2 O 3 -MgO nano composite powder. Use absolute ethanol as the dispersion medium for ball milling, then drying and sieving. The treated powder is subjected to spark plasma sintering, wherein the heating rate is 100°C / min, the holding pressure is 80MPa, the holding temperature is 1100°C, and the holding time is 5 min. Anneal at 1000℃ for 15h in air. Finally, high-quality infrared transparent Y 2 O 3 -MgO nanocomposite ceramics.
[0077] figure 1 Y prepared in Example 1 2 O 3 -XRD pattern of Mg...
Example Embodiment
[0082] Example 2
[0083] In a certain amount of Y(NO 3 ) 3 And Mg(NO 3 ) 2 To the mixed solution, add citric acid monohydrate and ethylene glycol, and then calibrate the total solution to 160ml. The concentrations of each component are citric acid 0.25mol / L, ethylene glycol 0.08mol / L, Y(NO 3 ) 3 0.23mol / L, Mg(NO 3 ) 2 It is 0.46mol / L. Stir the solution evenly, put it into a preheated 200°C muffle furnace, raise it to 800°C at 1°C / min, keep it for 1 hour, and then cool down naturally. Get Y 2 O 3 -MgO nano composite powder. Use absolute ethanol as the dispersion medium for ball milling, then drying and sieving. The treated powder is subjected to spark plasma sintering, wherein the heating rate is 100°C / min, the holding pressure is 80MPa, the holding temperature is 1200°C, and the holding time is 5 min. Anneal at 1000℃ for 15h in air. Finally, the infrared transparent Y is obtained 2 O 3 -MgO nanocomposite ceramics.
[0084] Image 6 Y prepared in Example 2 2 O 3 -Scanning elect...
PUM
Property | Measurement | Unit |
---|---|---|
Average grain size | aaaaa | aaaaa |
Particle size | aaaaa | aaaaa |
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap