Glass Fiber Powder Reinforced Composite Coating
40% higher breakdown voltage
A multiscale glass fiber powder gradient design in a micro-arc oxidation/epoxy composite delivers synergistic high-voltage endurance, corrosion resistance, and wear protection for aluminum alloy electronic packaging.
Liu, Yixuan · Yang, Hao · 75998929 · Yuanshuai, He · Gao, Chao · Zhou, Fusheng · Lu, Hailin
Surfaces and Interfaces 2026
Specifications
- Breakdown voltage
- {'zh': '14.67', 'en': '14.67'} kV
- Charge transfer resistance
- {'zh': '5.6084e7', 'en': '5.6084e7'} Ω·cm²
Advantages
40% higher breakdown voltage
Uniformly dispersed 2000-mesh GFP fills micropores and microcracks, enhancing interfacial mechanical interlocking and densifying the coating, resulting in a breakdown voltage of 14.67 kV.
Significantly improved corrosion resistance
A charge transfer resistance of 5.6084×10⁷ Ω·cm² indicates that the coating effectively blocks the penetration of corrosive species.
Low friction and wear resistance
Under loads of 5 N and 7 N, the coating exhibits a stable low friction coefficient and narrower wear track width.
Applications
- Electronic packaging protection：Protects electronic packaging housings against high-voltage breakdown, corrosion, and wear simultaneously
- Aluminum alloy surface protection：Forms a dense composite coating on 6061 aluminum alloy, addressing protection deficiencies caused by micropores and microcracks
- Insulating coatings：Breakdown voltage of 14.67 kV meets high-voltage insulation requirements, preventing short circuits
- Wear-resistant coatings：Low friction coefficient and narrow wear track reduce mechanical friction losses