Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Microstructure and Mechanical Properties of Nanostructured Aluminum Consolidated by SPS

  • Zadra, Mario (University of Trento, Department of Materials Science and Industrial Technologies) ;
  • Casari, Francesco (University of Trento, Department of Materials Science and Industrial Technologies) ;
  • Molinari, Alberto (University of Trento, Department of Materials Science and Industrial Technologies)
  • Published : 2006.09.24
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Abstract

Nanostructured aluminum powders were obtained by means of planetary ball milling with methanol as the Process Control Agent (PCA). The behavior, during milling, was considered measuring the microhardness and grain size at different milling times. Bulk near-full density samples were sintered using the Spark Plasma Sintering technology with different schedules: temperature of $500^{\circ}C$ and $550^{\circ}C$, pressure of 30 MPa and 60 MPa and different modes of applying the pressure were changed in order to understand the behavior during sintering. All the samples retained their nanostructure with an increase of the grain size from about 46 up to 70-90 nm.

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