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Khodabakhshzade Fallah, Maoud, Ghesmati Tabrizi, Saeid, Seyedi, Sheida. (1400). Investigation of in-situ synthesis of alumina reinforcement and comparative flexural behavior with respect to ex-situ Al2O3 reinforced copper composite. , 54(1), 101-111. doi: 10.22059/jufgnsm.2021.01.11
Maoud Khodabakhshzade Fallah; Saeid Ghesmati Tabrizi; Sheida Seyedi. "Investigation of in-situ synthesis of alumina reinforcement and comparative flexural behavior with respect to ex-situ Al2O3 reinforced copper composite". , 54, 1, 1400, 101-111. doi: 10.22059/jufgnsm.2021.01.11
Khodabakhshzade Fallah, Maoud, Ghesmati Tabrizi, Saeid, Seyedi, Sheida. (1400). 'Investigation of in-situ synthesis of alumina reinforcement and comparative flexural behavior with respect to ex-situ Al2O3 reinforced copper composite', , 54(1), pp. 101-111. doi: 10.22059/jufgnsm.2021.01.11
Khodabakhshzade Fallah, Maoud, Ghesmati Tabrizi, Saeid, Seyedi, Sheida. Investigation of in-situ synthesis of alumina reinforcement and comparative flexural behavior with respect to ex-situ Al2O3 reinforced copper composite. , 1400; 54(1): 101-111. doi: 10.22059/jufgnsm.2021.01.11

Investigation of in-situ synthesis of alumina reinforcement and comparative flexural behavior with respect to ex-situ Al2O3 reinforced copper composite

Journal of Ultrafine Grained and Nanostructured Materials
دوره 54، شماره 1، شهریور 2021، صفحه 101-111    اصل مقاله (3.87 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jufgnsm.2021.01.11
نویسندگان
Maoud Khodabakhshzade Fallah؛ Saeid Ghesmati Tabrizi* ؛ Sheida Seyedi
Department of Metallurgy & Ceramics, College of Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran
چکیده
Ex-situ and in-situ reinforced copper matrix composite samples containing 1.1 wt. % and 2 wt. % Al2O3 were produced by spark plasma sintering (SPS) at 830 °C and holding time of 30 min. In-situ reinforced sample was synthesized by a novel technique using the reaction between ball-milled copper oxide and Cu-10 wt. % Al filings as the additive and copper powder. The in-situ formation of alumina reinforcement was confirmed by SEM observation and EDS analysis. Morphology and distribution of reinforcement phase in different composite samples were studied. The in-situ reinforced composite sample showed superior flexural fracture strength and strain (349 MPa and 0.027, respectively). Different patterns of crack propagation were observed in the SEM images of fracture surfaces: the reinforcement’s interface path (due to the formation of undesired oxide phase) was dominant in the ex-situ samples, while the interface of in-situ reinforcements remained intact and the cracks originated in the agglomeration sites.
کلیدواژه‌ها
in-situ Al2O3 reinforcement؛ copper matrix composite؛ flexural strength؛ fracture behavior
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