Vol. 6, Issue 1, Part A (2024)

Many of modern technologies require materials with unusual combinations of properties that cannot be met by the metals, conventional metallic alloys, ceramics and polymers e.g. Engineers working in aircraft industry are looking and searching for structural materials that have low densities, are strong, stiff and are not easily corroded. Obviously this is a rather formidable combination of characteristics i.e. they need any multiphase material that exhibits a significant proportion of the properties of constituent phases such that a better combination of properties is realized. A composite is a multiphase material that is artificially made, as to one that occurs naturally. In addition, the constituent phases in a composite must be chemically dissimilar. This is why most metallic alloys and many ceramics do not fit this definition because in these materials multiple phases are formed as a consequence of normal phenomenon.