Nonuniform solution growth of potassium aluminum sulfate

Growth of potassium aluminum sulfate crystals from aqueous solution under nonuniform conditions was studied using an impinging jet technique. Variation of supersaturation along the crystal surface resulted in breakdown of uniform growth as predicted theoretically. Typically, a plateau was formed, with inclusions surrounding a central inclusion free region. The size of the inclusion free region, where growth is uniform, was determined by the jet...