شماره ركورد كنفرانس :
1693
عنوان مقاله :
In Situ Fabrication of Multi Layers Al-Al2O3 Functionally Graded Composite via Hot Press Method
پديدآورندگان :
Haghi S.M.A. نويسنده , Sajjadi S.A. نويسنده , Babakhani A. نويسنده Department of Metallurgical and Materials Engineering, Faculty of Engineering, Ferdousi University of Mashhad, Mashhad, Iran
كليدواژه :
Al-Al2O3 , FGCs , Aluminothermic reaction
عنوان كنفرانس :
The second international conference on composites characterzation
چكيده فارسي :
In this study fabrication of three - and five - layer Al-Al2O3 graded composite (FGCs) including 5.7-18.7 vol% and 5.7-15.4 vol% of Al2O3 phase, respectively via ball milling of Al and ZnO powder and thereafter hot pressing at 5800C was investigated. The synthesis of alumina particulates was accomplished via aluminothermic reaction in Al - matrix. The occurrence of aluminothermic reaction was investigated by XRD analysis. OM and SEM studies were performed to observe porosity, the interfaces between layers, and the alumina particulates. The results showed that five - layer Al-Al2O3 FGCs have better gradient in hardness. In addition, maximum hardness and relative density were measured as 137.4 Hv and 99.5%, respectively.
شماره مدرك كنفرانس :
3366052
