Research/Patents/US 5695725
US 5695725Tier 3 — General Defense

METHOD OF PREPARING MONOCLINIC BAO.A1203.2SI02

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE NAVY

Filed

Jul 18, 1989

Granted

Dec 9, 1997

Location

SILVER SPRING MD US

Abstract

Monoclinic celsian (BaO.Al2 O3.2SiO2) is produced by heating a stoichiometric, powder mixture of BaCO3 (or BaC2 O4), Al2 O3, and SiO2 (preferably SiO2 gel) with monoclinic celsian seeds at from 1250° C. to 1500° C.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Sep 14, 1989

Rescinded

Oct 15, 1996

Duration

7 years, 1 month

Inventor

  • 1INNA G. TALMY
Back to patent indexSource: USPTO 35 USC §181 secrecy order records