Composite plating liquid

Patent metadata

Field	Value
Publication number	US-9476138-B2
Application number	US-201213403331-A
Country	US
Kind code	B2
Filing date	Feb 23, 2012
Priority date	Feb 24, 2011
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

In one embodiment, there is provided a composite plating liquid. The composite plating liquid includes: a plating metal salt; a sulfate of at least one element selected from alkali metals and alkaline earth metals; boric acid; a carbon nanotube; and a dispersant. Also, there is provided a plating method of plating a member using the composite plating liquid, and a composite plating film formed by the plating method.

First claim

What is claimed is:

1. A composite plating liquid comprising:
a plating metal salt including a halide salt, wherein the halide salt includes nickel bromide;
a sulfate of at least one element selected from alkali metals and alkaline earth metals;
boric acid;
carbon nanotubes; and
a dispersant, wherein the dispersant is polyacrylic acid,
wherein a metal of the plating metal salt comprises nickel,
wherein a concentration of the plating metal salt is 10 to 100 g/L, and a concentration of the sulfate is 200 to 500 g/L,
wherein a concentration of the carbon nanotubes is such that, when the composite plating liquid is made into a composite plating film by plating the composite plating liquid on a member, a weight percent of the carbon nanotubes in the composite plating film is 0.1 to 10 wt %, and
wherein a weight ratio between a metal of the plating metal salt and the boric acid is in a range of 1:1 to 1:5.

2. A plating method comprising;
plating a member using the composite plating liquid according to claim 1 .

3. A composite plating film formed by the method of claim 2 , wherein the carbon nanotubes are provided in the composite plating film in the weight percent of 0.1 to 10 wt %.

4. A plated member comprising the composite plating film of claim 3 .

5. A heat radiation component comprising:
a first surface having a plurality of grooves therein; and
the composite plating film of claim 3 , which is formed over an entire surface of the first surface, wherein a thickness of the composite plating film is substantially uniform over the first surface.

Assignees

• Suwa Yoriyuki
• Kawamura Kenji
• Aoki Syuzo
• Nakazawa Masao
• Arai Susumu
• Shinko Electric Ind Co
• Univ Shinshu

Inventors

• Suwa Yoriyuki
• Kawamura Kenji
• Aoki Syuzo
• Nakazawa Masao
• Arai Susumu

Classifications

• C25D3/02

  from solutions (C25D5/34 - C25D5/46 take precedence) · CPC title

• C25D15/00 Primary

  Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires · CPC title

• C25D3/12

  of nickel or cobalt · CPC title