A phase diagram in physical chemistry, engineering, mineralogy, and materials science is a type of chart used to show conditions at which thermodynamically distinct phases occur and coexist at equilibrium.
Gibbs triangle
Space phase diagram of a ternary system
Materials science is an interdisciplinary field of researching and discovering materials. Materials engineering is an engineering field of finding uses for materials in other fields and industries.
A diamond cuboctahedron showing seven crystallographic planes, imaged with scanning electron microscopy
A late Bronze Age sword or dagger blade
Crystal structure of a perovskite with a chemical formula ABX3
Microstructure of pearlite