Question

What are metal matrix composites?

Answer 1

A metal matrix composite is composite material with at least two constituent parts, one being a metal necessarily, the other material may be a different metal or another material, such as a ceramic or organic compound. When at least three materials are present, it is called a hybrid composite. 
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Answer 2

A metal framework composite will be composite material with no less than two constituent parts, one being a metal essentially, the other material might be an alternate metal or another material, for example, a clay or natural mixes .

The framework is the solid material into which the support is inserted, and is totally constant. This implies there is a way through the framework to any point in the material, not at all like two materials sandwiched together. In auxiliary applications, the lattice is typically a lighter metal, for example, aluminum , titanium , and gives an agreeable help to the fortification . In high-temperature applications, cobalt and cobalt– nickel amalgam lattices are normal .