A process for manufacturing a compound in powder form, wherein said compound is the reaction product of (i) at least one metal and/or metalloid, and (ii) at least one further element that is more electronegative than the metal and/or metalloid, which process includes steps of: mixing at least one oxide of said at least one metal and/or metalloid with a reducing agent including Ca or Mg granules or powder, and/or calcium hydride or magnesium hydride in granule or powder form, to form a mixture; exposing the mixture to a source of said at least one further element; maintaining said mixture under a H.sub.2 atmosphere at a temperature of from 950 C. to 1500 C. for 1-10 hours; and, recovering said compound in powder form; wherein said at least one further element is selected from carbon, nitrogen, boron, silicon and mixtures thereof. A compound in powder form obtainable by such a process.

A process for manufacturing a compound in powder form, wherein said compound is the reaction product of (i) at least one metal and/or metalloid, and (ii) at least one further element that is more electronegative than the metal and/or metalloid, which process includes steps of: mixing at least one oxide of said at least one metal and/or metalloid with a reducing agent including Ca or Mg granules or powder, and/or calcium hydride or magnesium hydride in granule or powder form, to form a mixture; exposing the mixture to a source of said at least one further element; maintaining said mixture under a H.sub.2 atmosphere at a temperature of from 950 C. to 1500 C. for 1-10 hours; and, recovering said compound in powder form; wherein said at least one further element is selected from carbon, nitrogen, boron, silicon and mixtures thereof. A compound in powder form obtainable by such a process.

The present invention(s) is directed to novel conductive M.sub.n+1X.sub.n(T.sub.s) compositions exhibiting high volumetric capacitances, and methods of making the same. The present invention(s) is also directed to novel conductive M.sub.n+1X.sub.n(T.sub.s) compositions, methods of preparing transparent conductors using these materials, and products derived from these methods.

In this diamond-coated cemented carbide cutting tool, (1) an average particle size of WC particles is 0.5 to 0.9 m, (2) (R.sub.z) being 0.5 to 1.0 m, a maximum distance between the concave and convex () is 0.5 to 1.5 m, a length (Y.sub.e) is 0.5 to 2.0 m, (3) a sum of areas of WC particles, which satisfies (L.sub.1) being 0.4 to 0.8 m, (L.sub.2) being 0.2 to 0.4 m, and (L.sub.1)/(L.sub.2) being 1.5 to 2.5, is 70 area % or more, (4) an average grain size of diamond crystals in a region of 0.5 to 1.5 m from the body interface is 0.1 to 0.3 m, and (5) columnar crystals satisfying at least one of: a ratio of crystals, which has a growth direction shifted in 10 degrees or less from the diamond film thickness direction, being 90% or more; or an orientation ratio of <110> being 30 to 70%.

A supported heterogeneous catalyst material for catalyzing the reverse water-gas shift (RWGS) reaction for the selective formation of CO using an alkali metal-doped molybdenum carbide on a gamma alumina support (A-Mo.sub.2C/-Al.sub.2O.sub.3, A=K, Na, Li). The A-Mo.sub.2C/-Al.sub.2O.sub.3 catalyst is synthesized by co-impregnation of molybdemun and alkali metal precursors onto a -Al.sub.2O.sub.3 support. It is then carburized to form the A-Mo.sub.2C/-Al.sub.2O.sub.3.

A supported heterogeneous catalyst material for catalyzing the reverse water-gas shift (RWGS) reaction for the selective formation of CO using an alkali metal-doped molybdenum carbide on a gamma alumina support (A-Mo.sub.2C/-Al.sub.2O.sub.3, A=K, Na, Li). The A-Mo.sub.2C/-Al.sub.2O.sub.3 catalyst is synthesized by co-impregnation of molybdemun and alkali metal precursors onto a -Al.sub.2O.sub.3 support. It is then carburized to form the A-Mo.sub.2C/-Al.sub.2O.sub.3.

A method for CO.sub.2 hydrogenation via the reverse water-gas shift (RWGS) reaction using alkali metal-doped molybdenum carbide, supported on gamma alumina (A-Mo.sub.2C/-Al.sub.2O.sub.3, A=K, Na, Li). The A-Mo.sub.2C/-Al.sub.2O.sub.3 catalyst is synthesized by co-impregnation of molybdemun and alkali metal precursors onto a -Al.sub.2O.sub.3 support. It is then carburized to form the A-Mo.sub.2C/-Al.sub.2O.sub.3. Also disclosed is the related catalyst material.

A method for CO.sub.2 hydrogenation via the reverse water-gas shift (RWGS) reaction using alkali metal-doped molybdenum carbide, supported on gamma alumina (A-Mo.sub.2C/-Al.sub.2O.sub.3, A=K, Na, Li). The A-Mo.sub.2C/-Al.sub.2O.sub.3 catalyst is synthesized by co-impregnation of molybdemun and alkali metal precursors onto a -Al.sub.2O.sub.3 support. It is then carburized to form the A-Mo.sub.2C/-Al.sub.2O.sub.3. Also disclosed is the related catalyst material.

Powder metallurgy, in particular production of tungsten monocarbide spherical powders, which is a major component of metalloceramic hard alloys used for manufacture of tools, drill bits, steel alloying, wear-resistant coating cladding at elements operating in intensive wear conditions. The method includes melting of the starting material, and melt atomization with forming of spherical powder. As starting material a tungsten monocarbide grit is used. Melting and atomization of the material is implemented by continuous filling of grit into a rotating crucible of a centrifugal atomization device under an inert atmosphere and melting it by a plasma arc. After that an annealing of the obtained powder is made at a temperature of 1200-1400 C. during a time necessary for W.sub.2C breakup with subsequent cooling of the powder in a furnace. And, the production of tungsten monocarbide spherical powder with WC content of more than 70%.

Powder metallurgy, in particular production of tungsten monocarbide spherical powders, which is a major component of metalloceramic hard alloys used for manufacture of tools, drill bits, steel alloying, wear-resistant coating cladding at elements operating in intensive wear conditions. The method includes melting of the starting material, and melt atomization with forming of spherical powder. As starting material a tungsten monocarbide grit is used. Melting and atomization of the material is implemented by continuous filling of grit into a rotating crucible of a centrifugal atomization device under an inert atmosphere and melting it by a plasma arc. After that an annealing of the obtained powder is made at a temperature of 1200-1400 C. during a time necessary for W.sub.2C breakup with subsequent cooling of the powder in a furnace. And, the production of tungsten monocarbide spherical powder with WC content of more than 70%.