| US 7,468,122 B2 | ||
| Composite layer including metal and inorganic powders and method for manufacturing the same | ||
| Ji-Young Byun, Seoul (Korea, Republic of); Kyung-Tae Hong, Seoul (Korea, Republic of); Jung-Man Doh, Seoul (Korea, Republic of); Heon-Phil Ha, Guri-si (Korea, Republic of); and Kyoung-Tae Kim, Seoul (Korea, Republic of) | ||
| Assigned to KIST, Hawolgok-dong, Seongbuk-gu (Korea, Republic of) | ||
| Filed on Dec. 29, 2005, as Appl. No. 11/322,881. | ||
| Claims priority of application No. 10-2005-0109015 (KR), filed on Nov. 15, 2005. | ||
| Prior Publication US 2007/0108059 A1, May 17, 2007 | ||
| Int. Cl. C25D 15/00 (2006.01) | ||
| U.S. Cl. 205—109 | 2 Claims |
| 1. A method of manufacturing a composite layer on a basic metal substrate comprising:
dipping a basic metal into an electrolyte comprising:
nickel sulfamate [Ni(NH2SO4)] in a concentration range of 50.0 g/l to 300.0 g/l; boric acid in a concentration range of 10.0 g/l to 20.0 g/l;
nickel chloride (NiCl2) in a concentration range of 1.0 g/l to 10.0 g/l;
coumarin (C9H6O2) in a concentration range of 0.02 g/l to 0.5 g/l;
sodium dodecyl sulfate [CH3—(CH2)11—OSONa] in a concentration range of 4.0 g/l to 60.0 g/l;
an inorganic silicon carbide (SiC) powder and in a concentration range of 20.0 g/l to 70.0 g/l;
sulfuric acid in a concentration range of 15.0 ml/l to 70.0 ml/l; and,
distilled water; and
electroplating the basic metal substrate to form a nickel-alumina composite layer on the basic metal.
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