Enhancing Mechanical Properties of Cold-Sprayed Aluminum Coatings using Graphene-Nanoplatelet and Micro-Boron-Carbide Reinforcements

Abstract

This study explores the individual and combined reinforcement effects of graphene nanoplatelets (GNP) and micro-boron carbide (B4C) in cold-sprayed Al matrix composite coatings. High energy ball milling was used to create compositions of 2 vol.% GNP, 2 vol.% B4C, and one of 1 vol.% GNP with 1 vol.% B4C. All reinforced compositions consisted of a total of 2 vol.% reinforcement to compare the effectiveness of single and dual reinforcement and not the amount of total reinforcement. Coatings were heat treated for 1 h at 400C to improve coating densification. Each coating was evaluated using microhardness tests, nanoindentation, dry-sliding wear tests, and adhesion tests.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2022
Accession Number
AD1185110

Entities

People

  • Samuel P Rice

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Additive Manufacturing
  • Aluminum Oxides
  • Ball Mills
  • Carbon Nanotubes
  • Ceramic Materials
  • Composite Materials
  • Friction
  • Graphene
  • Heat Treatment
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanical Working
  • Microscopy
  • Modulus Of Elasticity
  • Thermal Spraying
  • Wear Resistance

Readers

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  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics