Abstract: Disclosed is an amorphous alloy for a magnetic head, which is of the formula:(Co.sub.1-a-b-c Fe.sub.a Ru.sub.b TM.sub.c).sub.100-x-y Si.sub.x B.sub.ywherein TM is at least one of Ti, V, Cr, Mn, Ni, Zr, Nb, Mo, Hf, Ta and W, and, in atomic concentrations, 0.02.ltoreq.a.ltoreq.0.08, 0.07.ltoreq.b.ltoreq.0.2, c=0 or 0.01.ltoreq.c.ltoreq.0.1, 0.ltoreq.x.ltoreq.20 and 4.ltoreq.y.ltoreq.9, which is excellent in abrasion-resistance and simultaneously has high permeability.
Abstract: A hydrogen storage material is described which comprises an alloy of the composition of 25 to 30.9% by weight of Ti, about 10 to about 42% by weight of V and about 27.1 to about 65.1% by weight of Mn. The proviso is that more than 2 up to at most 2.2 atoms are present per titanium atom. Up to about 40%, preferably about 10 to about 40%, of the vanadium atoms can be replaced by iron atoms and up to about 10%, preferably about 3 to about 10%, can be replaced by aluminum atoms, but not more than about 40% of the vanadium atoms in total are replaced. Moreover, in place of titanium, a mixture can be used in which up to about 20% of the titanium fraction are replaced by Ca, Y, La, misch metal, or mixtures thereof. Up to about 0.2 atom of Cr per the titanium atom, up to about 0.1 atom of Ni per titanium atom and up to about 0.05 atom of Cu per titanium atom can also be present, but not more than about 0.1 atom of Ni plus Cu, these atoms replacing the same number of vanadium atoms.
Abstract: A storage material for hydrogen comprising an alloy with the following composition:______________________________________ Ti(V.sub.1-a-b Fe.sub.a Al.sub.b).sub.x Cr.sub.y Mn.sub.2-x-y, ______________________________________ wherein: x = greater than 1, less than 2 y = 0 to approximately 0.2 x + y = not greater than 2 a = 0 to approximately 0.25 b = 0 to approximately 0.33 a + b = not greater than approximately 0.35 (1 - a - b) .multidot. x = not less than 1 ______________________________________This storage material for hydrogen can, in the cold state, absorb a maximum of 3.2% by weight of H.sub.2 and already possesses, at low temperatures, a high reaction speed for the absorption of hydrogen. During the absorption of hydrogen, the storage material exhibits self-heating to high temperatures. Thus, in addition to its use for storing hydrogen, it is also particularly suitable for use in preheating systems for hydride-type storage units of motor vehicles.
Abstract: A heat resistant cast iron-nickel-chromium alloy outstanding in creep fracture strength at high temperatures and resistance to thermal shock and to carburizing and containing the following components in the following proportions in terms of % by weight:C: 0.3-0.6,O<Si.ltoreq.2.0,O<Mn.ltoreq.2.0,Cr: 20-30,Ni: 30-40,W: 0.5-5.0,N: 0.04-0.15,B: 0.0002-0.004,Ti: 0.04-0.50 and0.07<Al.ltoreq.0.50the balance being substantially Fe.
Abstract: Boron-containing transition metal alloys based on one or more of iron, cobalt and nickel, and containing at least two metal components, are characterized by being composed of ultrafine grains of a primary solid-solution phase randomly interspersed with particles of complex borides which are predominantly located at the junctions of at least three grains of the primary solid-solution phase. These alloys are obtained by devitrification of the solid, amorphous state under specific heat-treatment conditions. These alloys can be consolidated into three-dimensional bodies.
Abstract: A high permeability alloy having an excellent wear resistance, comprising 3-10 wt % of Al, 4-11 wt % of Si, 2.1-20.0 wt % of Ru and the balance Fe, and further containing or not containing 0.01-1.0 wt % of at least one element selected from a group consisting of rare earth elements, Zr and Nb, and/or 0.2-0.5 wt % of Ti, or 0.5-20.0 wt % of Cr.
Abstract: The present invention relates to an amorphous magnetic alloy material suited for use as a core material of a magnetic head.When the magnetic head is subjected to a slide contact with a magnetic tape over a long period of time, a film of oxide and the like is formed on the surface of an amorphous magnetic alloy material due to chemically corrosive media frequently contained in the magnetic coating layer of the magnetic tape or due to carbon dioxide, water and the like contained in the air.The amorphous magnetic alloy material of the present invention is highly corrosion resistant due to the combination of chromium and platinum family element(s), and, the inconveniences in a magnetic head, due to chemical wear, can be prevented even where the magnetic head is operated or stored in a considerably severe condition.
Abstract: A metal alloy having high catalytic activity comprising a refractory base metal mass containing carbon and at least one metal of the platinum type, the surface of which has been subjected to intergranular acid corrosion which produces microfissures and causes the formation of microcrystals of the platinum metals. The catalyst is useful in exhaust catalystic converters.
Abstract: A hydrogen storage Ti-Fe alloy of the general formula, Ti.sub.1-x A.sub.x Fe.sub.y-z B.sub.z, in which A is Zr, Hf or a mixture thereof, B is a member selected from Cr, Cu, Co, Mo, V, Ni, Nb, Mn and a mixture thereof, and x, y and z are values of certain ranges, respectively. The alloy is predominantly comprised of an effective alloy phase of CsCl type body-centered cubic crystals. The alloy of the formula where z=O is within the scope of the invention. A process for making an alloy of this type is also disclosed.
Type:
Grant
Filed:
September 4, 1980
Date of Patent:
January 25, 1983
Assignee:
Matsushita Electric Industrial Company, Limited