||Addition of filler particles to a matrix can improve mechanical, thermal and other properties. Particulate Composites are materials which consist of, or include particles that combine more than one physical phase in a controlled fashion. Particulate Composites have the potential to enable new materials, and push some of their properties and property combinations to unprecedented extremes. Particulate Composites can be designed to e.g. (i) prevent direct contact and reaction of constituents, (ii) to enhance filler particle alignment, and (iii) to pin thermal expansion in 1D, 2D or 3D - or (iv) simply for better processing.