Silver-plated product

Patent metadata

Field	Value
Publication number	US-2016281253-A1
Application number	US-201414778159-A
Country	US
Kind code	A1
Filing date	Feb 18, 2014
Priority date	Mar 21, 2013
Publication date	Sep 29, 2016
Grant date	—

Abstract

There is provided a silver-plated product which has good thermal resistance, bendability and wear resistance. In a silver-plated product wherein a surface layer of silver having a thickness of 10 μm or less is formed on a base material of copper or a copper alloy, the full-width at half maximum of a rocking curve on a preferred orientation plane (preferably {200} or {111} plane) of the surface layer is caused to be 2 to 8°, preferably 3 to 7°, to improve the out-of-plane orientation of the surface layer to improve the thermal resistance, bendability and wear resistance of the silver-plated product.

First claim

1 . A silver-plated product comprising:
a base material; and a surface layer of silver which is formed on the base material, wherein the full-width at half maximum of a rocking curve on a preferred orientation plane of the surface layer is 2 to 8°.

2 . A silver-plated product as set forth in claim 1 , wherein said full-width at half maximum of the rocking curve on the preferred orientation plane of the surface layer is 3 to 7°.

3 . A silver-plated product at set forth in claim 1 , wherein said preferred orientation plane of the surface layer is {200} or {111} plane.

4 . A silver-plated product as set forth in claim 1 , wherein said base material is made of copper or a copper alloy.

5 . A silver-plated product as set forth in claim 1 , wherein said surface layer has a thickness of 10 μm or less.

6 . A contact or terminal part which is made of a silver-plated product as set forth in any one of claims 1 through 5 .

Assignees

• Dowa Metaltech Co Ltd

Inventors

• Shinohara Keisuke
• Ogata Masafumi
• Miyazawa Hiroshi
• Sugawara Akira

Classifications

• C25D5/34

  Pretreatment of metallic surfaces to be electroplated · CPC title

• C25D3/46 Primary

  of silver · CPC title

• C25D5/10 Primary

  Electroplating with more than one layer of the same or of different metals (for bearings C25D7/10) · CPC title

• C25D7/00

  Electroplating characterised by the article coated · CPC title

• C25D5/617

  Crystalline layers · CPC title