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Journal of Ultrafine Grained and Nanostructured Materials، جلد ۵۴، شماره ۱، صفحات ۱۰۱-۱۱۱
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Investigation of in-situ synthesis of alumina reinforcement and comparative flexural behavior with respect to ex-situ Al2O3 reinforced copper composite |
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| چکیده انگلیسی مقاله |
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. |
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| کلیدواژه‌های انگلیسی مقاله |
in-situ Al2O3 reinforcement, copper matrix composite, Flexural Strength, fracture behavior |
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| نویسندگان مقاله |
Maoud Khodabakhshzade Fallah |
Department of Metallurgy & Ceramics, College of Engineering, Mashhad Branch, Islamic Azad University,
Mashhad, Iran
Saeid Ghesmati Tabrizi |
Department of Metallurgy & Ceramics, College of Engineering, Mashhad Branch, Islamic Azad University,
Mashhad, Iran
Sheida Seyedi |
Department of Metallurgy & Ceramics, College of Engineering, Mashhad Branch, Islamic Azad University,
Mashhad, Iran
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| نشانی اینترنتی |
https://jufgnsm.ut.ac.ir/article_81962_cbfbec17abc129e24a3e62735f663a11.pdf |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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