Research/Patents/US 4843042
US 4843042Tier 3 — General Defense

ALKALINE EARTH FLUORIDE ADDITIVE FOR SINTERING ALUMINUM NITRIDE

Assignee

General Electric

Filed as: GENERAL ELECTRIC COMPANY, A CORP. OF NEW YORK

Filed

Jun 30, 1986

Granted

Jun 27, 1989

Location

BURNT HILLS NY US

Abstract

An aluminum nitride ceramic body with a thermal conductivity of at least 0.5 W/cm.K at 25° C. is produced by shaping a particulate mixture of aluminum nitride powder and an additive selected from the group consisting of CaF2, SrF2, BaF2 and mixtures thereof into a compact and liquid phase sintering the compact.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 15, 1987

Rescinded

Sep 30, 1988

Duration

1 year, 5 months

Inventor

  • 1STEPHEN L. DOLE
Back to patent indexSource: USPTO 35 USC §181 secrecy order records