Processing and characterization of graphene nano-platelet (GNP) reinforced aluminum matrix composites


Akcamli N., Gokce H. , UZUNSOY D.

MATERIALS TESTING, cilt.58, ss.946-952, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 58
  • Basım Tarihi: 2016
  • Doi Numarası: 10.3139/120.110944
  • Dergi Adı: MATERIALS TESTING
  • Sayfa Sayıları: ss.946-952

Özet

Aluminum matrix composites containing graphene nanoplatelets (GNPs) as reinforcement additive were fabricated by a two-step process consisting of mechanical alloying and pressureless sintering. The effects of graphene nano-platelets amounts and mechanical alloying duration on the microstructural and mechanical properties of aluminum were investigated. The characterization studies were performed by X-ray diffractometry, Raman spectroscopy, scanning electron microscopy/energy dispersive spectrometry, particle size analysis, differential scanning calorimetry, Archimedes' density and microhardness test method. The microhardness of composites increased gradually by the addition of 0.5 and 1 wt.-% GNP, whereas an adverse effect was observed by the increment of the GNP amount to 2 wt.-%.