Growth of a polyhedral crystal from solution and its morphological stability

When a polyhedral crystal grows from solution in a stable way, the supersaturation is not uniform over its interface. The rate of stable growth of a cubic crystal is determined by taking account of three-dimensional diffusion field surrounding it and growth kinetics on the interface. It depends on both supersaturation σ∞ at infinity and crystal size L. Then, the shape stability of the growing polyhderal crystal is discussed, and the curve of stability limit, σ⁷∞ versus L, is obtained by numerical calculations.