Abstract:
An electrical storage device is described which utilizes an electrode for reversibly storing hydrogen in an alkaline environment, the electrode comprising an amorphous metal alloy of the formula: wherein A is at least one metal selected from the group consisting of Pd, Ag, Au, Hg and Pt; M is at least one metal selected from the group consisting of Pb, Ru, Cu, Cr, Mo, Si, W, Ni, Al, Sn, Co, Fe, Zn, Cd, Ga and Mn; M' is at least one of the elements selected from the group consisting of Ca, Mg, Ti, Y, Zr, Hf, V, Nb, Ta and the rare earths; and wherein a ranges from about 0.005 to about 0.80; b ranges from zero to about 0.70; and c ranges from about 0.08 to about 0.95.
Abstract:
A process is disclosed for the formation of amorphous multi-metallic alloy coatings. More specifically, a chemical vapor deposition process is described wherein precursor compounds are induced to decompose upon a substrate under controlled parameters so as to form a coating on the subatrate that is a substantially amorphous multi-metallic alloy, Preferred amorphous alloy composltions are also taught that are ideally synthesized by the claimed process.
Abstract:
A coated reinforcement material comprises a reinforcement having a coating of the general formula:
A x Si 100-x
wherein A is selected from the group consisting of Au, Pt, Ru, Rh, Ni, Pd, Ir and combinations thereof; and x is within the range of greater than zero to about 40. The reinforcement is preferably selected from Si₃N₄, SiAlON, Si, AlON, B₄C and SiC. The invention further relates to a high strength, high temperature performance composite comprising a matrix material, for example, selected from ceramic, glass and glass-ceramic materials and a reinforcement material having a coating comprising silicon in combination with at least one of gold, platinum, ruthenium, rhodium, nickel, iridium and palladium.
Abstract:
An electrical storage device is described which utilizes an electrode for reversibly storing hydrogen in an acid environment, the electrode comprising an amorphous metal alloy of the formula:
A a M b M' c
wherein A is at least one metal selected from a group consisting of Pd,
Ag, Au, Cu, Hg and Pt; M is at least one metal selected from the group consisting of Pb, Ru, Cr, Mo, Si, W, Ni, Al, Sn, Co, Fe, Zn, Cd, Ga and M' is at least one metal selected from the group consisting of Ca, Mg, Ti, Y, Zr. Hf, Nb. V, Ta and the rare earths; and wherein a ranges from about 0.005 to about 0.80; b ranges from zero to about 0.70; and c ranges from about 0.08 to about 0.95.
Abstract:
An electrical storage device is described which utilizes an electrode for reversibly storing hydrogen in an acid environment, the electrode comprising an amorphous metal alloy of the formula: A a M b M' c wherein A is at least one metal selected from a group consisting of Pd, Ag, Au, Cu, Hg and Pt; M is at least one metal selected from the group consisting of Pb, Ru, Cr, Mo, Si, W, Ni, Al, Sn, Co, Fe, Zn, Cd, Ga and M' is at least one metal selected from the group consisting of Ca, Mg, Ti, Y, Zr. Hf, Nb. V, Ta and the rare earths; and wherein a ranges from about 0.005 to about 0.80; b ranges from zero to about 0.70; and c ranges from about 0.08 to about 0.95.
Abstract:
Amorphous metal alloy compositions are synthesized by solid state incorporation/reduction reactions wherein a high-surface area support is brought in contact with a precursor metal-bearing compound in such a manner that the compound is incorporated into the support or caused to deposit metal onto the surface of the support. The composition obtained is an amorphous alloy composition or can be made so by heat treating at a temperature below the crystallization temperature of the amorphous metal alloy desired to be formed.