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International Journal of Engineering، جلد ۲۸، شماره ۱۰، صفحات ۱۴۹۳-۱۴۹۹
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| عنوان انگلیسی |
Effects of Micro and Nano Sized SiC Powder on the Rheological Properties of Al Based Feedstocks for Low Pressure Injection Molding |
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| چکیده انگلیسی مقاله |
This study investigates the effects of micro- and nano-sized SiC powder on the rheological behavior of Al based feedstocks for powder injection molding (PIM). Different compositions of Al feedstocks with additions of micro and nano-SiC powder were prepared and their rheological properties were measured with a rotational rheometer. The effects of SiC content and shear rate were investigated and activation energies were compared amongst the feedstocks. The results showed that nano-SiC powder has a prominent effect on the viscosity and yield stress whereas micro-SiC does not have an effective role and the base micro-Al powder determines the overall rheological behavior of the feedstock. It was found that the feedstocks reveal pseudoplastic behavior at low shear rates and dilatancy at high shear rates. The critical shear rate (γcrit) was 100 s-1 for changing the rheological behavior. The activation energy of a given feedstock was found to increase with micro-SiC content while the reverse trend was observed for nano-SiC. |
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| کلیدواژه‌های انگلیسی مقاله |
Injection Molding, Al, SIC, SiC nanoparticles, Rheology |
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| نویسندگان مقاله |
Rahim YazdaniRad |
Semiconductors, Material and Energy Research Center(MERC)
Ebrahim Ghasemi |
Ceramics, Institute for Color Science and Technology
Arezoo Ghanbari |
Ceramics, Material and Energy Research Center(MERC)
Masoud Alizadeh |
Ceramic, Material and Energy Research Center(MERC)
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| نشانی اینترنتی |
http://www.ije.ir/article_72603_a77cc520ebd36102a50bc45fdd04061a.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/409/article-409-2062438.pdf |
| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
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