Author:
Redlich Meir,Gorodnev Alex,Feldman Yishay,Kaplan-Ashiri Ifat,Tenne Reshef,Fleischer Niles,Genut Menachem,Feuerstein Noam
Abstract
A new type of composite metal–nanoparticle coating that significantly reduces the friction force of various surfaces, particularly archwires in orthodontic applications, is demonstrated. The coating is based on electrodeposited Ni film impregnated with inorganic fullerene-like nanospheres of tungsten disulphide. The first encouraging tests have shown reduction of up to 60% of the friction force between coated rectangular archwires and self-ligating brackets in comparison with uncoated archwires. The coating not only significantly reduces friction of commercial archwires but also maintains this low value of friction for the duration of the tests in comparison to archwires coated with nickel film without the nanoparticles. The coated surfaces of the wires were examined by scanning electron microscopy equipped with energy dispersive analyzer and by x-ray powder diffraction methods before and after the friction tests. Using these analyses, it was possible to qualitatively estimate the state of the Ni+IF-WS2 coating before and after the friction test compared to Ni coated wires without IF-WS2.
Publisher
Springer Science and Business Media LLC
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference30 articles.
1. Nickel allergy and orthodontics, a review and report of two cases
2. 28 Haist I. : Test for sensitization (Local Lymph Node Assay— LLNA) with inorganic fullerene-like WS2 nanospheres. Project No. 052052, Bioservice Scientific Laboratories (Plenneg, Germany, 2005
3. Applications of WS2(MoS2) inorganic nanotubes and fullerene-like nanoparticles for solid lubrication and for structural nanocomposites
4. 23 Friedman H. , Eidelman O. , Feldman Y. , Moshkovich A. , Perfiliev V. , Rapoport L. , Yoffe A. , Tenne R. : Fabrication of self-lubricating cobalt coatings on metal surfaces. Nanotechnol., 18, 115703 2007
Cited by
30 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献