Preparation of various aluminium matrix composites reinforcing by nano-particleswithdifferent dispersion methods
- سال انتشار: 1397
- محل انتشار: پنجمین کنفرانس بین المللی آلومینیوم ایران
- کد COI اختصاصی: IIAC05_009
- زبان مقاله: انگلیسی
- تعداد مشاهده: 478
نویسندگان
Department of Material and Metallurgical Engineering, Semnan University, Semnan, P.O. Box: ۳۵۱۳۱۱۹۱۱۱, Iran
Department of Material and Metallurgical Engineering, Semnan University, Semnan, P.O. Box: ۳۵۱۳۱۱۹۱۱۱, Iran
Department of Material and Metallurgical Engineering, Semnan University, Semnan, P.O. Box: ۳۵۱۳۱۱۹۱۱۱, Iran
Department of Mechanical Engineering, Semnan University, Semnan, P.O. Box: ۳۵۱۳۱۱۹۱۱۱, Iran
چکیده
In this study, the effect of SiO2 nano-particles dispersion methods to the aluminium matrix in two weight percent of 0.5 and 1 was investigated. First type of composites contained nano-particles which were pre-heated at 400 °C and then added to the melt. Second type of specimens were produced using nano-particles that prepared in the planetary ball-mill for 1 hour in combination with aluminium micro-particles. The hardness and the microstructure of nano-composites have been studied. The production method of nano-composites was the stir casting process. Besides, the distribution of nano-particles in the aluminium matrix for both types of specimens studied by the field emission scanning electron microscopy (FE-SEM) which was equipped by the energy dispersive X-Ray spectroscopy (ESD). Obtain result showed that the wetting parameter for the second type of specimens was higher than the first ones. FE-SEM images showed that the agglomeration size of nano-particle in the first type of specimens was lower than 100 nm. Such behaviour led to increase the hardness value of aluminium matrix composite to 141 BHN with the increase of 15% with respect the aluminium alloyکلیدواژه ها
Nano-particles, Aluminium Matrix Composite, Planetary ball-mill, Pre-heating, Microstructure.مقالات مرتبط جدید
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