公开(公告)号：CA1250322A

公开(公告)日：1989-02-21

申请号：CA507931

申请日：1986-04-30

Applicant: CORNING GLASS WORKS

Inventor： CHYUNG KENNETH ,  FENN PHILIP M ,  TAYLOR MARK P

IPC: C03C3/085 ,  C03B32/02 ,  C03C4/00 ,  C03C10/00 ,  C03C10/14 ,  G01C19/64 ,  G01C19/66

Abstract: This invention relates to the production of transparent glass-ceramic bodies exhibiting properties especially suitable for use in ring laser gyros. The inventive products contain B-quartz solid solution as essentially the sole crystal phase and consist essentially, expressed in terms of weight percent on the oxide basis, of SiO2 64-67 ZnO 0.7-4.2 Al2O3 21-24 TiO2 2.0-3.25 Li2O 2.6-3.7 ZrO2 1.25-2.5 MgO 0.8-1.5 TiO2+ZrO2 4-5.25