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Effect of Sintering Temperature on the Densification Mechanism of Al2O3-Al Metal Ceramics via the Powder Metallurgy Method
- Source :
- Solid State Phenomena. 279:104-108
- Publication Year :
- 2018
- Publisher :
- Trans Tech Publications, Ltd., 2018.
-
Abstract
- Alumina ceramics with good mechanical and corrosion resistance are the ones of the most widely used engineering ceramics. The aluminum has high strength, high conductivity and high plasticity etc. so that aluminum ceramics are used in more and more industries. In this paper, the mass fraction of 25% Al2O3 powder and the mass fraction of 75% Al powder were mixed in the blender. Mixer speed is100r/min with mixing time of 3.5 h. Forming, sintering and a series of processes for preparing the alumina/aluminum metallic ceramic materials, through performance testing and analysis, found that the density of the sample firstly increased and then decreased with the increase of sintering temperature. A melting point is close to the sintering temperature and the density of the cermet can be made relatively high. When the sintering temperature is about 600°C and 700°C, the macro performance of sample is better. The cermet is sintered at 700°C and its microstructure is relatively better.
- Subjects :
- Materials science
Metallurgy
Sintering
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Atomic and Molecular Physics, and Optics
0104 chemical sciences
Metal
Powder metallurgy
visual_art
visual_art.visual_art_medium
General Materials Science
Ceramic
0210 nano-technology
Mechanism (sociology)
Subjects
Details
- ISSN :
- 16629779
- Volume :
- 279
- Database :
- OpenAIRE
- Journal :
- Solid State Phenomena
- Accession number :
- edsair.doi...........035eb5c89c99115c90463ff92e546fd2