Effect of Silicon Dioxide-Graphene Content on the Microstructure, Sliding Wear Behavior, and Compressive Strength of Aluminum Hybrid Composites

Şenel M. C., Ustun M.

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, cilt.32, sa.3, ss.1248-1260, 2023 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32 Sayı: 3
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1007/s11665-022-07194-5
  • Dergi Adı: JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1248-1260
  • Anahtar Kelimeler: aluminum, composite, graphene, silicon dioxide, wear, MATRIX COMPOSITES, TRIBOLOGICAL BEHAVIORS, MECHANICAL-PROPERTIES, REINFORCEMENT
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

In the present work, aluminum matrix composites reinforced with graphene nanoplatelets (GNPs: 0.15-0.45wt.%) and silicon dioxide (SiO2: 1, 3, 6, 9wt.%) were produced by the powder metallurgy method. Hardness, compressive strength, density, friction coefficient, and wear rate of the prepared specimens were examined. According to the experimental results, the best compressive strength (similar to 390 MPa), density (similar to 2.66 g/cm(3)), hardness (similar to 62 HV), the lowest porosity (similar to 1.3%), friction coefficient (similar to 0.19 for a load of 10 N), and wear rate (similar to 0.003 mm(3)/Nm for a load of 5 N) were detected et al.-6SiO(2)-0.15graphene composite. Compared to pure Al, the compressive strength, hardness, and wear resistance of Al-6SiO(2)-0.15graphene composite were improved by similar to 110%, similar to 106%, and similar to 107, respectively. Hence, it may be concluded that SiO2 has excellent wear resistance and graphene has remarkable strength, good solid lubricating properties for Al-based composites.