The experimental study on sol-gel technique of coating titanium.
- Author:
Fu-qiang ZHANG
1
;
Bin HU
Author Information
- Publication Type:Journal Article
- MeSH: Chromium Alloys; chemistry; Coated Materials, Biocompatible; Dental Alloys; chemistry; Dental Materials; Gels; Humans; Materials Testing; methods; Nickel; chemistry; Titanium; chemistry
- From: Chinese Journal of Stomatology 2004;39(4):306-308
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVEThe aim of this study was to establish sol-gel technique of coating titanium on the surface of Ni-Cr alloy (PFM) in order to enhance corrosion resistance and reduce corrosive rate in oral cavity.
METHODSThe sol-gel technique included four steps: (1) pre-treatment; (2) preparation of sol; (3) coating; (4) heat treatment. Elements on the surface of Ni-Cr alloy were analyzed with X-ray photoelectron spectroscopy.
RESULTSAfter coating Ti, the surface of Ni-Cr alloy looked light golden without particles, blisters and fragments. Besides Ni and Cr, titanium was found on surface of Ni-Cr alloy after coating. With Ar(+) ion carving-corrosion figure, the thickness of titanium was about 20 - 80 microm.
CONCLUSIONWith sol-gel technique, titanium could be coated on the surface of Ni-Cr alloy.
