Results 161 to 170 of about 4,115 (221)

Hard iron boride (Fe2B) on 99.97wt% pure iron

Vacuum, 2006
Abstract Some properties such as hardness and fracture toughness of boride formed on the 99.97 wt% pure iron were investigated. Boronizing was carried out in a solid medium, consisting of Ekabor powders of 5% B4C as donor, 5% KBF4 as an activator and 90% SiC as diluent at 800 °C for 2, 4 and 8 h.
Ozkan Ozdemir   +3 more
openaire   +3 more sources

High capacity alkaline super-iron boride battery

Electrochimica Acta, 2007
Abstract A high capacity alkaline redox storage chemistry is explored based on a novel Fe 6+ /B 2− chemistry. The alkaline anodes based on transition metal borides can deliver exceptionally high electrochemical capacity. Over 3800 mAh/g discharge capacity is obtained for the commercial available vanadium diboride (VB 2 ), much higher than the ...
Xingwen Yu, Stuart Licht
openaire   +3 more sources

Evaluation of the corrosion resistance of iron boride coatings obtained by paste boriding process

Surface and Coatings Technology, 2006
Abstract An evaluation of corrosion resistance of boride coatings in AISI 304 steel was carried out. Formation of iron boride layers (FeB and Fe 2 B) at the material surface was obtained by paste boriding process. Boron paste thicknesses of 4 and 5 mm were applied to the steel surface. A thermochemical treatment, for each boron potential, was carried
I. Campos   +4 more
openaire   +3 more sources

The Super-Iron Boride Battery

Journal of The Electrochemical Society, 2008
A high-capacity alkaline redox storage chemistry is explored based on an environmentally benign zirconia-stabilized Fe 6+ /B 2- chemistry. This super-iron boride battery sustains an electrochemical potential matched to the pervasive, conventional MnO 2 -Zn battery chemistry, but with a much higher electrochemical storage capacity.
Stuart Licht   +3 more
openaire   +1 more source

Reinforced iron boride materials

Soviet Powder Metallurgy and Metal Ceramics, 1976
1. An iron boride alloy introduced by infiltration into the pores between molybdenum wires and an iron matrix ensures strong bonding between the wires and the matrix. 2. During the manufacture of a RIBM diffusion zone transition layers form around the molybdenum wires. The transition layers consist of variable-composition solid solutions
A. E. Mashkov, V. I. Gurdin
openaire   +1 more source

Fracture Toughness of Iron Boride Layers Obtained by Paste Boriding Process

Materials Science Forum, 2007
The fracture toughness of the Fe2B phase was evaluated in this study. Formation of the Fe2B boride is carried out though paste boriding process applied on AISI 1045 steel surface. The treatment was carried out at temperatures of 1193, 1223 and 1273 K for 6 h using a 5 mm thick boron paste. A Vickers microhardness tester was used to generate microcracks
G. Ramírez, I. Campos, A. Balankin
openaire   +1 more source

Growth of boride coatings on iron

Journal of Materials Science Letters, 1987
Comprehension et controle du mecanisme de croissance des revetements de borure sur le fer. Influence des conditions de traitement et des materiaux utilises sur la morphologie des revetements obtenus. L'ordre cristallographique des couches et par consequent leur compacite et leur durete depend de l'activite de la diffusion du ...
G. Palombarini, M. Carbucicchio
openaire   +1 more source

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