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February 28, 2026Journal of Materials Science Materials in EngineeringOpen Access

Synthesize and characterization of hybrid aluminium alloy (AA6063) metal matrix composite (HAMMC) with corn cob ash and alumina (Al2O3) reinforcements

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Authors

AAAyenew AmareEthiopian Defence UniversityMBMezigebu BelayEthiopian Defence UniversityZWZewudu WondimagegnEthiopian Defence University

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Implication

Investigates the mechanical properties of AA6063 aluminium alloy reinforced with CCA and Al2O3, suggesting enhanced applications in engineering.

Key Points

  • The aim is to evaluate the mechanical properties and microstructure of AA6063 aluminium alloy reinforced with corn cob ash and alumina.
  • Produced composites using two-step stir casting method.
  • Incorporated weight fractions of CCA and Al2O3 from 5% to 15%.
  • Applied Taguchi method for optimal property assessment.
  • Conducted mechanical testing including tensile, compression, and hardness.
  • Performed microstructural analysis using optical microscopy and X-ray diffraction.
  • Ultimate tensile strength improved by 49% at 10% CCA and Al2O3.
  • Compressive strength increased by 44.4% at 15% CCA and Al2O3.
  • Hardness enhanced by 31% at 15% CCA and Al2O3.
  • Microstructural analysis showed uniform reinforcement distribution.
  • XRD confirmed presence of Al2O3-CCA particles in composites.

Cite This Study

Amare et al. (2026) studied this question.

synapsesocial.com/papers/69a287010a974eb0d3c025e6https://doi.org/10.1186/s40712-026-00421-0
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