سال انتشار: ۱۳۹۱

محل انتشار: اولین کنفرانس بین المللی مواد پیشرفته

تعداد صفحات: ۵

نویسنده(ها):

Farzaneh vali ghazvini – School of Metallurgy and Materials Engineering, College of Engineering, University of Imam khomeini International, Qazvin, Iran
Arman sedghi – School of Metallurgy and Materials Engineering, College of Engineering, University of Imam khomeini International, Qazvin, Iran

چکیده:

Over the past two decades– a period coinciding with publication of composites science and technology – metal matrix composites (MMCs) have been transformed from a topic of scientific and intellectual interest to a material of broad technological and commercial significance. Metal matrix composites first as a unique technology appeared that military systems need to their performance and the primary motivation for the development of materials were created.One of the most important parameters in the study of metal matrix composites contact surface formed is between the matrix and the ceramic reinforcement. Because this area is determining power and resistance to cracking in the composites during deformation. Now that this principle to form a strong bond between ceramic and wetting metal is necessary, is accepted completely. Also all chemical reactions are also possible, be controlled. In this study, The damping properties of aluminum matrix composites reinforced with coated continuous carbon fibers were studied. The experimental results show that a CVD carbon coating on the surface of T300 carbon fibers greatly improves the overall damping capacity of Cf/Al composites. Coating of carbon fibers have been used by K2zrf6 so it creates more favorable properties. Fibers from 10 seconds to 1 minute we tested. Pure aluminuim at 800˚C was melted and coated fibers pass through the molten. The best properties of composite was achieved at the optimum condition the heating temperture fiber of 70˚C, maintaining time fiber: 3hr , melting temperature of aluminium 800˚C . Also the microstructure of such composites was also studied by SEM and TEM to better understand.