Nano-aperture porous periclase-magnesium aluminate spinel ceramic material and preparation method thereof
A technology of magnesium aluminum spinel and ceramic materials, which is applied in the field of nano-aperture porous periclase-magnesium aluminum spinel ceramic materials and its preparation, which can solve the problems of wasting a lot of water resources, poor high temperature performance, and large air permeability. , to achieve the effects of environmental friendliness, low preparation cost and low air permeability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0025] A nano-aperture porous periclase-magnesia aluminum spinel ceramic material and a preparation method thereof. The steps of the preparation method described in this embodiment are:
[0026] Step 1. First heat up the magnesite fine powder to 680-850°C at a rate of 0.5-1.5°C / min and keep it warm for 2-3 hours; then raise the temperature to 950-1100°C at a rate of 2-2.5°C / min After cooling for 2-4 hours, a high-porosity magnesium oxide powder is obtained.
[0027] Step 2, according to the magnesium oxide powder of described high porosity is 70~80wt%, contains Al 3+ The solution is 0.1~10wt% and the aluminum hydroxide micropowder is 18~28wt%. First, the magnesium oxide powder with high porosity is placed in a vacuum mixer, and the vacuum is evacuated to below 2.0kPa, and then the Al-containing 3+ The solution and the aluminum hydroxide micropowder are poured into a vacuum mixer, stirred for 20-40 minutes, and the vacuum system is closed to obtain a mixture.
[0028] Step 3...
Embodiment 2
[0032] A nano-aperture porous periclase-magnesia aluminum spinel ceramic material and a preparation method thereof. The steps of the preparation method described in this embodiment are:
[0033] Step 1. First heat up the magnesite fine powder to 680-850°C at a rate of 0.5-1.5°C / min and keep it warm for 3-4 hours; then raise the temperature to 1100-1250°C at a rate of 2-2.5°C / min After cooling for 4-6 hours, magnesium oxide powder with high porosity is obtained.
[0034] Step 2, according to the magnesium oxide powder of described high porosity is 80~86wt%, contains Al 3+ The solution is 8~25wt% and the aluminum hydroxide micropowder is 5~15wt%. First, the magnesium oxide powder with high porosity is placed in a vacuum mixer, and the vacuum is evacuated to below 1.5kPa, and then the Al-containing 3+ The solution and the aluminum hydroxide micropowder are poured into a vacuum mixer, stirred for 20-40 minutes, and the vacuum system is closed to obtain a mixture.
[0035]Step 3...
Embodiment 3
[0039] A nano-aperture porous periclase-magnesia aluminum spinel ceramic material and a preparation method thereof. The steps of the preparation method described in this embodiment are:
[0040] Step 1. First heat up the fine magnesite powder to 680-850°C at a rate of 0.5-1.5°C / min and keep it warm for 3-5 hours; then raise the temperature to 950-1100°C at a rate of 2-2.5°C / min After cooling for 2-4 hours, a high-porosity magnesium oxide powder is obtained.
[0041] Step 2, according to the magnesium oxide powder of described high porosity is 80~92wt%, contains Al 3+ The solution is 5~15wt% and the aluminum hydroxide micropowder is 3~20wt%. First, the magnesium oxide powder with high porosity is placed in a vacuum mixer, and the vacuum is evacuated to below 0.5kPa, and then the Al-containing 3+ The solution and the aluminum hydroxide micropowder are poured into a vacuum mixer, stirred for 20-40 minutes, and the vacuum system is closed to obtain a mixture.
[0042] Step 3, h...
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
particle diameter | aaaaa | aaaaa |
density | 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