TITLE

Duplex coatings for the protection of magneto-optic alloys against oxidation and corrosion

AUTHOR(S)
Frankenthal, R. P.; van Dover, R. B.; Siconolfi, D. J.
PUB. DATE
August 1987
SOURCE
Applied Physics Letters;8/17/1987, Vol. 51 Issue 7, p542
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Thin films of Fe or Co and rare-earth metals, such as Tb and Gd, are being developed as high density, mass memory storage media in magneto-optic devices. It is shown that a 10-nm duplex film consisting of a metal that is passivated in air, such as Cr or Al, and a diffusion barrier, such as Nb, will protect these alloys against oxidation and corrosion at temperatures up to at least 200 °C. The duplex film is better than a single passivated metal layer, which may interdiffuse with the alloy, or than a dielectric, which may be reduced by the reactive rare-earth element.
ACCESSION #
9823877

 

Related Articles

  • Numerical modeling of pyrolytic laser-induced chemical vapor deposition. Koutlas, G. N.; Vlachos, N. S. // Journal of Applied Physics;3/1/2003, Vol. 93 Issue 5, p3049 

    Laser chemical vapor deposition (LCVD) is a technique to deposit thin films of oxidation, corrosion, and wear resistant as well as electronic, optoelectronic, and superconductor materials. In order to understand the underlying mechanisms of such a process we have developed a numerical model...

  • Characteristic And Corrosion Studies Of Rare Earth (REE) Based Anodizing On AZ91D Magnesium Alloy. Azadi, M. A. Khalid; Zamzuri, M. Z. M.; Norbahiyah, S.; Derman, M. N. // Key Engineering Materials;2014, Vol. 594/595, p571 

    Oxide coatings on AZ91D magnesium alloy were prepared using anodizing technique with 10mA/cm² current density for 5 minutes in electrolyte containing Mg(NO3)2 with NaVO3 as an additive. The corrosion behaviors of different coatings condition were evaluated by immersion test in 5.0% NaCl...

  • EXPERIMENTAL INVESTIGATION AND COMPUTER SIMULATION OF DIFFUSION IN Pt-COATED BULK Ni. Gong, W.; Zhang, l.; Ode, M.; Murakami, H.; Zhou, C. // Journal of Mining & Metallurgy. Section B: Metallurgy;2010, Vol. 46 Issue 2, p153 

    The concentration profiles of thin-film Pt/bulk Ni coatings annealed at 1150, 1250 and 1300 °C for different time were measured by means of electron probe microanalysis. The corresponding interdiffusion coefficients were then determined using the thin-film solution. The calculated...

  • Resistencia a la corrosión de películas cerámicas delgadas. Carbajal-De la Torre, G.; Espinosa-Medina, M. A.; Pacheco-Ibarra, J. J.; Ibarra-Bracamontes, L. A.; Galván, S. R.; Espitia Cabrera, M. I. // Superficies y Vacío;2011, Vol. 24 Issue 4, p121 

    In this work has proposed the synthesis and characterization of hybrid ceramic thin films produced by the base of polymethilmetacrylate (PMMA) and zirconium oxide (ZrO2), and titanium oxide (TiO2) for applications to corrosion protection. The synthesis of the inorganic phase was carried out by...

  • Precision Measurements of the 278 keV 14N(p,γ) and the 151 keV 18O(p,α) Resonance Parameters. Borowski, M.; Lieb, K. P.; Uhrmacher, M.; Bolse, W. // AIP Conference Proceedings;1/28/2009, Vol. 1090 Issue 1, p450 

    In thin film technology, analytical methods for monitoring the deposition of oxide and nitride coatings and the effects of corrosive, laser and ion-beam treatments have attracted considerable attention. For depth-profiling the concentrations of light isotopes, resonant nuclear reaction analysis...

  • Estimate of contributions of polysulfide film and inhibitor to the protection of steel from hydrogen-sulfide corrosion. Vigdorovich, V.; Zakurnaev, S. // Protection of Metals & Physical Chemistry of Surfaces;Dec2009, Vol. 45 Issue 7, p812 

    A method for estimating the contributions of film formed on a corrosive surface in aggressive medium favoring its formation and INKORGAS-T30 inhibitor at the inhibition of corrosion in steel has been proposed. Experimental results obtained by studying the behavior of the St3 carbon steel in...

  • The self-healing ability of cerium oxide films on carbon steel. Girčienė, O.; Gudavičiūtė, L.; Selskis, A.; Jasulaitienė, V.; Šakirzanovas, S.; Ramanauskas, R. // Chemija;2015, Vol. 26 Issue 3, p175 

    Active corrosion protection of metals implies not only mechanical covering of the protected surface with a dense barrier coating, but also provides self-healing properties, which allow durable protection even after partial damage of the coating. The aim of the present study was to develop the...

  • Analysis of Under-film Corrosion by Raman Imaging. Nobuaki Yoshioka; Atsunori Yoshida // Corrosion Engineering;Jun2015, Vol. 64 Issue 6, p208 

    The behavior of under-film corrosion was investigated by Raman imaging using multivariate analysis of the corrosion products, which were generated by CCT and SST. Effect of the conversion coatings on the corrosion under the wet--dry cyclic conditions was considered by comparing between zinc...

  • SURFACE ENGINEERING TECHNOLOGIES. Tucker, Robert S. // Advanced Materials & Processes;Apr2002, Vol. 160 Issue 4, p36 

    Discusses the deposition and characteristics of coatings and thin films for enhanced wear or corrosion resistance. Importance of surface science and engineering to material science and engineering; Categories of surface treatments; Comparison of the properties and performance of surfaces with...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics