Effect of duty cycle on electrical insulation and anti-corrosion properties of micro-arc oxidation layers prepared on 20% SiC/Al composites

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-09 DOI:10.1016/j.matlet.2025.138377

E. Xue , Jian Shang , Fuyan Liu

引用次数: 0

Abstract

Micro-arc oxidation (MAO) layer was formed on 20% SiC/Al composites using aluminate as the main electrolyte under constant voltage mode. The effect of duty cycle (10%-40%) on microstructure and corrosion properties of prepared MAO layers were studied. The results show that when the duty cycle is 40%, the layer thickness (23.68 μm), hardness (573.4 HV1) are both two times and breakdown voltage (550.74 V) is 1.5 times compare with that at duty cycle is 10%. The Icorr is 1.0×10-7 A·cm2 and |Z| is 1.18×10⁵Ω·cm² at 20% duty cycle, the best corrosion resistance is presented.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive