production of al2o3–sic nano-composites by spark plasma sintering
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ID: 178967
2017
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Abstract
In this paper, Al2O3–SiC composites were produced by SPS at temperatures of 1600 °C for 10 min under vacuum atmosphere. For preparing samples, Al2O3 with the second phase including of micro and nano-sized SiC powder were milled for 5 h. The milled powders were sintered in a SPS machine. After sintering process, phase studies, densification and mechanical properties of Al2O3–SiC composites were examined. Results showed that the specimens containing micro-sized SiC have an important effect on bulk density, hardness and strength. The highest relative density, hardness and strength were 99.7%, 324.6 HV and 2329 MPa, respectively, in Al2O3–20 wt% SiCmicro composite. Due to short time sintering, the growth was limited and grains still remained in nano-meter scale.
| Reference Key |
razavi2017boletnproduction
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|---|---|
| Authors | ;Mansour Razavi;Ali Reza Farajipour;Mohammad Zakeri;Mohammad Reza Rahimipour;Ali Reza Firouzbakht |
| Journal | medicinal chemistry (shariqah (united arab emirates)) |
| Year | 2017 |
| DOI |
10.1016/j.bsecv.2017.01.002
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