Effect of Heat Treatment with Sol-gel Method on Surface of Ni-Cr Alloy after Coating Ti
- VernacularTitle:溶胶-凝胶涂钛热处理对镍铬合金涂层的影响
- Author:
bin, HU
;
fu-qiang, ZHANG
- Publication Type:Journal Article
- Keywords:
sol-gel method;
coating Ti;
heat treatment;
Ni-Cr alloy;
corrosion
- From:Journal of Shanghai Jiaotong University(Medical Science)
2006;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the effect of heat treatment with sol-gel method on the surface of Ni-Cr alloy for PFM after Ti coating. Methods To establish the sol-gel method of Ti coating on the surface of Ni-Cr dental casting alloy for PFM(pre-treatment for the surface of Ni-Cr alloy,preparation of sol,coating,heat treatment) and to evaluate the color and fragmentation of 10 materials after heat treatment by ISO 10289. Results When kept at a higher condensation temperature and held for a longer time,the materials had less fragmentation.A higher agglutination temperature and a longer time made the materials look deep.When the condensation process was heat treated at(200 ℃) for 2 h and the agglutination process at 450 ℃ for 2 h,the thin film of Ti combined firmly with the surface of Ni-Cr alloy. Conclusion The procedure for heat treatment of Ti coating will affect the level of oxidation reaction on the surface of Ni-Cr alloy,and will change the level of combination between Ti and Ni-Cr alloy.
