一种莫来石微晶玻璃及其制备方法
By combining ion exchange, deammoniation treatment, and pre-collapse heat treatment with the SPS process, and controlling the sodium-aluminum molar ratio, low-temperature and short-time preparation of mullite glass-ceramics was achieved. This solved the problem of synergistic optimization of transparency and mechanical properties, and improved the transparency and mechanical properties of mullite glass-ceramics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGHUA UNIV
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot achieve synergistic optimization of transparency and mechanical properties of mullite glass within a low-temperature, short-time process window. Traditional preparation methods lead to grain coarsening, enhanced light scattering, and residual stress, resulting in a decline in material reliability and mechanical properties.
Using molecular sieve precursors as raw materials, the degassing and densification processes are decoupled by controlling the sodium-aluminum molar ratio within the range of 0.15-0.60 through ion exchange, deammoniation treatment and pre-collapse heat treatment, combined with the SPS process, to promote the uniform precipitation of nano-mullite crystals and form a nanocrystalline-residual glass complex structure.
Achieving synergistic optimization of high transparency and high mechanical properties of mullite microcrystalline glass under low temperature and short-time conditions, significantly reducing residual porosity and scattering defects, and improving hardness, fracture toughness and elastic modulus.
Smart Images
Figure CN122233660B_ABST