Silver chloride containing particles of irregular form of the order of 1 ktm in diameter is used as a model material for particle-reinforced metal matrix composites (MMCs). Matrix dislocations due to the mismatch of the coefficients of thermal expansion of the two phases are made visible to transmission optical microscopy through bulk decoration performed at room temperature. The plastic zone a...

Mechanical spectroscopy has been used for studying the relaxation of the mechanical and thermal stresses, which are built at the fibre-matrix interfaces in AICu-A1203 Metal Matrix Composites (MMCs). The interface strength has been evaluated by the stress dependent damping which exhibits a peak of solid friction. This peak is interpreted as due to interface microcracking. Relaxation of thermal s...

We have investigated a series of high performance metal-matrix composites (MMCs), in order to improve mechanical and thermal properties such composites. To fabricate composites, we used spark plasma sintering (SPS) process. Using this processing, would minimize or avoid some risks damaging filler surfaces during processing. In article, also introduced are various kinds MMCs, metal/intermetallic...

Metal composite materials have found application in many areas of daily life for quite some time. Often it is not realized that the application makes use of composite materials. These materials are produced in situ from the conventional production and processing of metals. Here, the Dalmatian sword with its meander structure, which results from welding two types of steel by repeated forging, ca...

the relationship between tool wear and process parameter ) of a Metal Matrix Composite (Al 359/SiC/20p). ) are superabrasive materials which consist of ce t a larger metal matrix. Fusion welded MMC joint s in the heat affected zone, disturbances in the particle e to a reduction in weld strength, and the formation 4C3) caused by localized melting. Though these effects ca h careful control of hea...

This review deals with the processing and properties of novel lightweight metal matrix composites. Conventionally, hard and strong ceramic particles are used as reinforcement to fabricate metal matrix composites (MMCs). However, the poor mechanical properties associated with the interfacial de-cohesion and undesirable reactions at (ceramic) particle–(metallic) matrix interface represent major d...

The principal advantage of metal matrix composites (MMCs) over unreinforced monolithic alloys is that their physical and mechanical properties can be enhanced by tailoring both their microstructure and the 3D spatial arrangement of reinforcement. The former has been realised by adjusting volume fraction, size and aspect ratio of the reinforcing phases in the conventional approach to MMCs proces...

Aluminum-based metal matrix composite (MMC) materials are used in the design of ground transportation vehicles and aircraft. Compared with conventional, unreinforced alloys, composite materials usually exhibit higher strength, both at ambient and elevated temperatures, as well as good fatigue strength and wear resistance. MMCs could be produced by variety of methods such as Stir cast, Liquid In...

Aerospace engine and airframe designers are constantly seeking lighter weight high strength materials to reduce weight and improve performance of powerplants and aircraft. Titanium metal matrix composites (Ti MMCs) have offered the promise of significant weight savings since their initial development in the early 1960s but until recently, their inadequate quality and reproducibility combined wi...

In composites, outstanding properties of two materials can be combined. particular, metal–matrix composites (MMCs) combine the a high-strength ductile metallic matrix with special embedded ceramic particles. This hybrid used to create functional material. However, during consolidation, thermal load most common MMC-processing routes is an obstacle for such functionalization, because unique phase...