Journal ArticleDOI
Hydrides of lanthanum-nickel compounds
TLDR
In this paper, the stability of LaNi intermetallic compounds was studied and showed a gradual increase in the stability as Ni concentration increases from LaNi to LaNi/sub 5/ accompanied by a corresponding decrease in the matching ternary hydride.Abstract:
H absorption by La--Ni intermetallic compounds was studied. Results show a gradual increase in the stability of the intermetallic compound as the Ni concentration increases from LaNi to LaNi/sub 5/ accompanied by a corresponding decrease in the stability of the matching ternary hydride. (JRD)read more
Citations
More filters
Journal ArticleDOI
Intermetallic compounds of rare-earth and 3d transition metals
TL;DR: A survey of the physical properties, composition and crystal structure of intermetallic compounds formed between rare-earth elements and 3D transition elements is given in this article.Apart from binary compounds, the results of pseudobinary series are also considered.
Journal ArticleDOI
Hydrides formed from intermetallic compounds of two transition metals: a special class of ternary alloys
TL;DR: In this paper, the authors review available experimental information on the existence, thermodynamic stability and physical properties of hydrides formed by the absorption of hydrogen gas in intermetallic compounds of two transition metals.
Journal ArticleDOI
Hydriding properties of LaNi3 and CaNi3 and their substitutes with PuNi3-type structure
J Chen,Hiroyuki T. Takeshita,H Tanaka,Nobuhiro Kuriyama,Takaaki Sakai,I. Uehara,Masatake Haruta +6 more
TL;DR: The PuNi3-type intermetallic compounds LaNi3, CaNi3 and La0.5MgNi9 have been prepared using a powder-metallurgy-sintering method and the hydrogenation behavior of these materials has been studied through the gas-solid reaction as discussed by the authors.
Journal ArticleDOI
Storing energy in metal hydrides: a review of the physical metallurgy
TL;DR: In this article, a review of the alloy groups which absorb large quantities of hydrogen is presented, with emphasis placed on thermodynamic and kinetic properties, activation and deactivation, poisoning effects and storage capacity.
Journal ArticleDOI
Stability of rechargeable hydriding alloys during extended cycling
TL;DR: In this article, three AB5 alloys were subject to 1500 hydriding and dehydriding cycles at 85°C to determine the stability of hydrogen transfer properties, and it was suggested that a specific metal-lattice atom pair may account for much of the LaNi5 damage.
References
More filters
Journal ArticleDOI
On the heat of formation of solid alloys
A.R. Miedema,R Boom,F.R. de Boer +2 more
TL;DR: In this paper, it was shown that the second term is preferably to be written as Q 0 (Δn 1 3 ws ) 2, and that the values for P and Q 0 are now nearly the same for widely different alloy systems.
Journal ArticleDOI
The electronegativity parameter for transition metals: Heat of formation and charge transfer in alloys
TL;DR: In this article, it is shown that the work function of a metal is proportional to the chemical potential for electrons in Wigner-Seitz atomic cells; the proportionality factor is found to be about 1·4.
Journal ArticleDOI
Hydrogen absorption in LaNi5 and related compounds: Experimental observations and their explanation
TL;DR: In this paper, a study of the change in hydrogen sorption properties caused by partially replacing La or Ni in LaNi5 by other metals is presented. But this study assumes that the more stable the original RNi5 compound, the weaker is the tendency to form a rNi5--hydride.
Journal ArticleDOI
Phase relations and hydrogen absorption in the lanthanum-nickel system
K.H.J. Buschow,H.H. Van Mal +1 more
TL;DR: The LaNi system has been reinvestigated in the range 50-100 at. % Ni as mentioned in this paper, and the following compounds were observed: LaNi, LaNi 1.4, LaNi 2, La Ni 3, La 2 Ni 7 and LaNi 5.
Journal ArticleDOI
Sorption hysteresis in the LaNi5-H and SmCo5-H systems
F.A. Kuijpers,H.H. Van Mal +1 more
TL;DR: In this article, it was argued that the magnitude of hysteresis is related to the rather large volume expansion which accompanies the formation of the hydride, and the authors proposed a method to solve this problem.
Related Papers (5)
Hydrogen absorption in LaNi5 and related compounds: Experimental observations and their explanation
Phase relations and hydrogen absorption in the lanthanum-nickel system
K.H.J. Buschow,H.H. Van Mal +1 more