Explanation

A solid solution in which solute atoms occupy certain positions in the lattice of a solvent crystal. The disordered solid solution still keeps the lattice of solvent components, but the lattice constant has some changes, because the distribution of its constituent atoms in its lattice is arbitrary. However, it has the following characteristics: ① the atoms of each component occupy a specific position, thus forming two or more kinds of sublattice. The whole structure is a stack structure (or superstructure) formed by the interpenetration of the sublattice of each component, and new lattice lines (or superlattice spectrum) appear in its X-ray diffraction spectrum or neutron diffraction spectrum; ② Heterologous atoms strive to approach, while similar atoms strive to stay away, indicating that heterologous atoms have stronger binding forces than similar atoms; ③ Ordered structures can exist within a certain range of components, but only at a specific component ratio can a completely ordered structure be achieved; ④ Generally speaking, the order disorder transformation occurs when the ordered synsolution is heated to a certain temperature.

Classification