Bonding of carbon fibers to metal inserts for use in composites

Patent

Description

Resin-impregnated carbon fiber composites containing metal inserts. Carbon fibers or a carbon fiber preform are bonded to a metal structural member. Once the carbon fiber-metal bond is established, the fiber-metal assembly or hybrid preform is impregnated with resin, to form an article in which bonding between the metal structural member and the composite remainder of the article is greatly enhanced. In a process embodiment, a metal insert, e.g. a steel insert, is provided in contact with particulate carbide-forming metal, e.g. titanium, and with carbon fiber segments. Then an electric current is passed through the carbide-forming metal particles and carbon fibers to heat them to a temperature above the melting point of the carbide-forming metal. This initiates an exothermic reaction, which forms liquid phase metal carbide. Subsequently the liquid phase metal carbide is cooled and solidified, thereby bonding the carbon fiber segments to the metal insert.

Attributes

Attribute NameValues
Title
  • Bonding of carbon fibers to metal inserts for use in composites

Patent Number
  • US 7588179 B2

USPTO Link
Inventor
  • Allen H. Simpson

  • Mark L. La Forest

  • Alexander Mukasyan

  • Douglas J. Steinke

Inventor From Local Institution
  • Alexander Mukasyan

Other Application
  • 11/730,373

Prior Publication Date
  • 2008-11-20

Prior Publication Number
  • US 20080283174 A1

Claims
  • 11

Classification (US Patent)
  • 228/234.3;

Cooperative Patent Classification codes
  • B29C 70/683 (20130101); B29C 70/70 (20130101); C22C 49/14 (20130101); C22C 47/14 (20130101); C22C 49/11 (20130101); B29K 2063/00 (20130101); B29K 2707/04 (20130101); B29K 2705/12 (20130101)

International Patent Classification codes
  • B23K 31/02 (20060101)

Language
  • eng

Date Issued
  • 2009-09-15

Publisher
  • United States Patent and Trademark Office

Assignee
  • Honeywell International Inc. (Morris Township, NJ)

Access Rights Open Access
Content License
Departments and Units

Files

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