Properties of Al–Al2O3 composites synthesized by spark plasma sintering method

• DOI: 10.1016/j.acme.2015.02.004
• Publication Date: 2015-02-26T11:03:59Z
• Authors: D. Garbiec; M. Jurczyk; N. Levintant-Zayonts; T. Mościcki
• Keywords: 02 engineering and technology; 0210 nano-technology

Abstract This work presents fabrication and characterization of Al–Al 2 O 3 composite materials with a 5%, 10%, 15% and 20% volume fraction of reinforcing phase particles. The spark plasma sintering method was applied for the purpose of fabricating these materials. The obtained Al–Al 2 O 3 composites were characterized with an porosity from 1.27% to 5.07%. It was proven that as the content of hard ceramic particles increases in the composite, its density, hardness, and compression as well as tensile strength increase. The conducted study showed that a composite with 20% alumina content is characterized by a larger hardness (1355 MPa) and compression strength (247 MPa).