Impact of GNPs Reinforcement on Specific Properties of Cu-GNPs Metal Matrix Nanocomposites Under Rapid Induction Sintering Conditions


MUTLU A., Çavdar U.

Arabian Journal for Science and Engineering, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1007/s13369-025-10843-1
  • Dergi Adı: Arabian Journal for Science and Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, zbMATH
  • Anahtar Kelimeler: Copper matrix nanocomposites, GNP, Mechanical properties, Induction sintering, Conductivity
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Graphene is an effective reinforcement material for enhancing the structural properties of copper (Cu) matrix nanocomposites due to its superior mechanical and electrical characteristics. This study investigates the effect of different graphene nanoparticle (GNP) reinforcement rates and rapid induction sintering on the mechanical, electrical, and microstructural characteristics of copper–graphene metal matrix nanocomposites. A powder metallurgy manufacturing strategy involving 3D ball milling and induction sintering was applied to strengthen Cu-GNP metal matrix nanocomposites mechanically. The manufactured nanocomposites demonstrated excellent properties, such as a maximum density of 99% and improved microhardness (27% higher than pure copper). The nanocomposite with the best yield strength (127 MPa) showed a 70% increase, and its ultimate tensile strength (278 MPa) was 43% higher than that of pure Cu, respectively. The nanocomposites were efficiently produced by the induction sintering method. As a result of microstructure examinations, the graphene nanoplates were uniformly dispersed in the copper matrix nanocomposite. Graphene's electrical conductivity was negatively affected by factors such as interfacial resistance and porosity, with a decrease of 3–5% IACS observed depending on the increasing amount of GNPs. This study also presents a practical and efficient approach for producing copper matrix nanocomposites reinforced with GNPs.