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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-article-BPZ5-0004-0021

Czasopismo

International Journal of Applied Mechanics and Engineering

Tytuł artykułu

Effect of surface and bulk properties on hydrogen absorption and desorption in NiZr metallic glasses

Autorzy Vehovszky, B.  Balla, S. 
Treść / Zawartość http://www.ijame.uz.zgora.pl/ http://www.degruyter.com/view/j/ijame
Warianty tytułu
Języki publikacji EN
Abstrakty
EN After previous examinations in the field of Ni-Zr based hydrogen absorbing glassy alloys, this paper details some surface and bulk processes, which have strong influence in H-charging and discharging properties. It is a usual problem with hydrogen storing materials that imperfect surface and bulk preparation (activation) hinders free movement of hydrogen, thus we can use only a small proportion of theoretical storing capacity. The surface oxide layer is usually a fundamental point: it is often impermeable for hydrogen. It is also true for Ni-Zr based glassy alloys, so the surface of samples has to be activated first by etching in an adequate acetic solution. Another restricting process is the diffusion of H-atoms in bulk metal. This problem is also examined and discussed together with some special measurements that made us able to study the above-mentioned effects easily.
Słowa kluczowe
PL magazynowanie wodoru   szkła metaliczne  
EN hydrogen storage   Ni-Zr based glassy alloy   surface oxide layer   surface and bulk activation  
Wydawca Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
Czasopismo International Journal of Applied Mechanics and Engineering
Rocznik 2010
Tom Vol. 15, no 2
Strony 463--468
Opis fizyczny Bibliogr. 6 poz., rys., wykr.
Twórcy
autor Vehovszky, B.
autor Balla, S.
  • Budapest University of Technologies and Economics Bertalan L. u. 2, Z 608, 1111 Budapest, HUNGARY, vehovszky@kgtt.bme.hu
Bibliografia
Garaguly J. (1998): Examination of Hydrogen Absorption-desorption in Amorphous Alloys via In-situ Resistance Measurement – PhD thesis, Budapest.
Hao Gu, Yunfeng Zhu and Liquan Li (2009): Hydrogen storage properties of Mg–30 wt.% LaNi5 composite prepared by hydriding combustion synthesis followed by mechanical milling (HCS + MM). – International Journal of Hydrogen Energy, vol.34, No.3, pp.1405-1410.
Manchester D. and Khatamian D. (1988): Mechanis for activation of intermetallic hydrogen absorbers. – Mat. Sci. For., vol.31, pp.261-296.
Shang C.X., Bououdina1 M., Song Y. and Guo Z.X. (2004): Mechanical alloying and electronic simulations of (MgH2+M) systems (M=Al, Ti, Fe, Ni, Cu and Nb) for hydrogen storage. – International Journal of Hydrogen Energy, vol.29, pp.7380.
Vehovszky B. and Balla S. (2008): The effect of hydrogen charging and discharging in Zr(Ni,Pd,Pt,Cu) glasses. – Materials Engineering, Žilina, vol.15, No.2a, pp.1-6, ISSN 1335-0803.
Vehovszky B. and Balla S. (2009): Resistometric and volumetric monitoring of hydrogen-absorption-desorption processes in Ni-Zr based metallic glasses. – Journal of Machine Manufacturing, vol. XLIX, Issue E3-E5, pp.35-38, HU ISSN 0016-8580, Budapest.
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