Research/Patents/US 5695827
US 5695827Tier 1 — UAP Program Assignee

SURFACE PROTECTION OF GAMMA AND ALPHA-2 TITANIUM ALUMINIDES BY ION IMPLANTATION

Assignee

Rockwell International

Filed as: ROCKWELL INTERNATIONAL CORPORATION

Filed

Jul 1, 1991

Granted

Dec 9, 1997

Location

El Segundo CA (Aerospace Corp/TRW)

Abstract

A process invention for protecting alpha-2 and gamma titanium aluminide alloy specimens subjected to high temperature oxidation comprises providing an ion beam having an energy range from about 100 keV to about 170 keV. The ion beam incorporates an elemental species capable of promoting alumina formation. The ion beam is exposed to the specimen so as to implant a dose in a range from about 2×1016 to about 8×lO17 ions/cm2 for a sufficient time period to form a surface alloy of the elemental species and titanium aluminide near the surface of the specimen.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jun 16, 1993

Rescinded

Apr 9, 1997

Duration

3 years, 9 months

Inventor

  • 1HODA SHALABY

Sensitive facility: El Segundo CA (Aerospace Corp/TRW)

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records