High-transmittance anti-erosion wear-resistant functional gradient coating and preparation process thereof
By preparing a Ti-Ta2O5 transition underlayer, a Ti-Ta2O5-N composition gradient intermediate layer, and a Ti-Ta2O5-N nanocomposite surface layer on a glass substrate, high light transmittance and erosion and wear resistance of glass-based transparent materials under erosion and friction environments were achieved. This solved the problem of easy peeling of coatings in existing technologies and achieved a balance between high light transmittance and high erosion resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LUOYANG INST OF SCI & TECH
- Filing Date
- 2026-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing glass-based transparent materials suffer a significant decrease in light transmittance during use due to the impact and friction of hard particles. Furthermore, traditional coatings are prone to peeling under stress concentration, making it difficult to achieve both high light transmittance and erosion and wear resistance.
Employing a functional gradient design, the coating consists of a Ti-Ta2O5 transition layer, a Ti-Ta2O5-N composition gradient intermediate layer, and a Ti-Ta2O5-N nanocomposite surface layer, arranged sequentially from the glass substrate outwards. The gradient transition of composition and performance is achieved by dynamically controlling the nitrogen flow rate, thus avoiding interfacial stress concentration.
The coating exhibits a light transmittance loss rate of less than 10% after erosion, a bonding strength of up to 30.2N, a microhardness of 17.5GPa, and excellent wear resistance. It solves the problem of traditional coatings being prone to peeling under stress concentration, achieving a balance between high light transmittance and high erosion resistance.
Smart Images
Figure CN122406170A_ABST