Essay --

1.1Background historyComposite strong is a polyphase materials which rout out be obtained through the artificial combination of two or more distinguishable materials to attain the properties that the individual components by themselves cannot attain. Composite materials can modify for many properties by appropriately choosing their components, proportions, distributions, morphologies and degrees of crystallinity, crystallographic textures, structure and the composition of the porthole between components. Due to this properties the building complex materials can be designed to conform to the needs of technologies relating to the aerospace, automobile, electronics, construction, energy, biomedical and other industries. Therefore, abstruse materials has been used most as a commercial engineering materials 1.There are some typewrite of complexs that can be assort according to the matrix material such(prenominal) as a polymer matrix composite (PMC), a metal matrix composite (MM C), and a ceramic matrix composite (CMC). Besides that, the composite also can be categorized according to the shape of the filler or the reinforcement for example a composite that has a hints as a filler is called a particulate composite and a composite with fibers is called fibrous composite 1. Metal matrix composite (MMC) is a composite that contains continuous metallic matrix and a few percent of the material by volume represent the reinforcement 2. The MMC offers some unique mechanised properties such as low density, high strength, and high stiffness, high soften resistance and other attractive properties. It also can offers the properties that are exceptional(a) compared with those of any unreinforced alloys 2. The metal matrix composites also can be classified in diffe... ...Al2O3 particles uniformly in aluminum matrix and for its ability to occasion the material into almost any shape 3.1.3Objectives1.3.1To fabricate aluminium oxide particle reinforced aluminum metal matrix composite by utilize powder metallurgy technique.1.3.2To investigate the effect of different weight percentage of alumina particle on physical and mechanical properties of aluminum metal matrix composite.1.4Scope of studyThe aim of this bulge is to investigate the effect of different reinforcement weight percentage (0wt%, 5wt%, 10wt%, 20wt% and 30wt%) of alumina particle on aluminum metal matrix composite. The composite will fabricate by utilize powder metallurgy technique which include mixing, compaction and sintering process. The testing involves in this project is microstructural analysis, density, porosity, hardness and coefficient thermal expansion (CTE).