(19)
(11) EP 0 088 604 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.07.1984 Bulletin 1984/27

(43) Date of publication A2:
14.09.1983 Bulletin 1983/37

(21) Application number: 83301168

(22) Date of filing: 04.03.1983
(84) Designated Contracting States:
AT BE CH DE FR IT LI NL SE

(30) Priority: 05.03.1982 US 355274

(71) Applicant: RAYCHEM CORPORATION (a California corporation)
 ()

(72) Inventor:
  • Harrison, John David
     ()

   


(54) Nickel/titanium/copper shape memory alloys


(57) The invention relates to shape memory alloys consisting essentially of nickel, titanium, and copper. The alloys of this mvention, which contain less than a stoichiometric amount of titanium, are capable of developing the property of shape memory at a temperature abeve 0°C. The presence of from 8.5 to 1 5 atomie percent copper stabilizes the alloys. Alloys according to this invention are particulary useful as switches and actuators.






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