公开(公告)号：US3962027A

公开(公告)日：1976-06-08

申请号：US504311

申请日：1974-09-09

Applicant: Timothy Michael Bruton

Inventor： Timothy Michael Bruton

IPC: C01G23/00 ,  C30B9/00 ,  C30B9/04 ,  C30B15/00 ,  C30B17/00 ,  C30B29/32 ,  B01J17/04 ,  B01J17/20 ,  C01G29/00

CPC classification number: C30B17/00 ,  C30B15/00 ,  C30B29/32 ,  C30B9/00

Abstract: Method of growing single crystal of Bi.sub.4 Ti.sub.3 O.sub.12 by a top-seeded growth technique. A solution of TiO.sub.2 is a solvent consisting of Bi.sub.2 O.sub.3 with/without B.sub.2 O.sub.3 is prepared. The temperature of the solution is adjusted to a value which is not more than 5.degree.C above the saturation temperature of the solution, and is maintained at this value while the degree of saturation of the solution is increased by dissolving TiO.sub.2. A Bi.sub.4 Ti.sub.3 O.sub.12 seed crystal is then lowered into the solution which is gradually cooled so as to grow a single crystal. The transparency of crystals grown from a solution containing B.sub.2 O.sub.3 in addition to Bi.sub.2 O.sub.3 is better than that of crystals grown from solutions in which the solvent consists solely of Bi.sub.2 O.sub.3.