| Autor: |
Mansour Razavi, Ali Reza Farajipour, Mohammad Zakeri, Mohammad Reza Rahimipour, Ali Reza Firouzbakht |
| Jazyk: |
English<br />Spanish; Castilian |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 56, Iss 4, Pp 186-194 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
0366-3175 |
| DOI: |
10.1016/j.bsecv.2017.01.002 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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