Sandvik Ab

Other

Umicore Ag & Co Kg

Sunsmart, Inc.

Eurotungstene Poudres S.a.

Micro Delta T Ab

Mamoun Muhammed

Mark Mitchnick

Sverker Wahlberg

Ingmar Grenthe

Thomas Kreuzer

Egbert Lox

Lothar Mussmann

Dieter Lindner

Martin Votsmeier

Matthias Feger

Tassilo Bog

Maxime Bonneau

Björn Palm

Nicolas Chardon

Sara Andersson

Muhammet Toprak

Shanghua Li

Richard Furberg

Othon Adamopoulos

Othan Adamopoulos

Inger Grenthe

Heat exchange device with a boiling surface comprising a porous surface layer arranged on a solid substrate, the porous surface layer comprises a porous wall structure defining and separating macro-pores that are interconnected in the general direction normal to the surface of the substrate and have a diameter greater than 5 &#x3bc;m and less than 1000 &#x3bc;m wherein the diameter of the pores gradually increases with distance from the substrate wherein the porous wall structure is a continuous branched structure.

Porous layer

An oxygen storage material comprising cerium oxide and at least one second oxide of a metal Mis disclosed as well as a process for manufacturing the material and the use of this material in an exhaust gas cleaning catalyst. In a preferred embodiment the oxygen storage material comprises particles from a Ce/Mmixed oxide solid solution coated with an oxide of another metal M. Metal Me.g. can be calcium or zirconium while metal Mmost preferably is aluminum.

Oxygen storage material, process for its preparation and its application in a catalyst

The invention features a conductive polymer comprising a polymer and zinc oxide particles having a substantially rod shape.

Conductive polymers containing zinc oxide particles as additives

According to the present invention there is now provided a method for preparing a powder containing W and Co and/or Ni characterized in reacting APT and a soluble salt of Co (Ni) in water at temperatures from room temperature to the boiling point of the solution keeping the solution pH at a constant level during the chemical reactions. The powder is filtered off, dried and reduced to a metallic powder which may be further carburized to form a powder containing WC and Co and/or Ni.

Method of preparing powders for hard materials from APT and soluble

There is disclosed a method for preparing a powder containing ammonium salts of W+Co(Ni) complex ions, through chemical reactions, in a water solution at temperatures from 70.degree. C. to the boiling point and at pH around neutral, between tungstate salts and cobalt (nickel) salts characterized in that said tungstate salts are the highly soluble sodium tungstate or ammonium metatungstate.

Method of preparing powders for hard materials from cobalt salts and

According to the invention there is now provided a simple method of preparing a powder containing WC and cobalt and/or nickel. APT-powder and a powder of a basic salt of cobalt and/or cobalt are mixed in water or in mixed solvents. The suspension is stirred to react at temperatures ranging from room temperature to the boiling point of the solution whereby a precipitate is formed, which precipitate is filtered off, dried and finally reduced to a metallic powder.

Method of preparing powders for hard materials

There is now provided a method for preparing a powder containing W and Co and/or Ni from APT and a soluble salt of Co(Ni) by a chemical reaction in a water suspension at temperatures from room temperature to the boiling point of the solution whereafter the formed powder is filtered off, dried and reduced to a metallic powder. Additional metals from groups IVa, Va or VIa of the periodic table of the elements are added to the suspension as compounds like oxides, hydroxides, soluble or insoluble salts.

Method of preparing multicarbide powders for hard materials

A process for the production of hard materials wherein hard constituent powders are coated with cobalt and/or nickel metal in solution by reducing the metals from a suitable compound such as an oxide, hydroxide or salt with a polyol while keeping the powder in suspension. The polyol functions both as a solvent and a reducing agent at the same time and is present in an amount of at least 5 times more moles polyol than moles metal. There is obtained an even distribution of the cobalt and/or nickel over the surface of the hard constituent powder without the formation of islands of pure metal.

Method of making metal composite powders

Disclosed are electrically conductive fibers which include zinc oxide particles having a substantially rod shape.

Antistatic fibers

Disclosed are compositions for application to a surface to protect the surface from ultra-violet radiation, which include zinc oxide particles having a substantially rod shape.

Growing community of inventors

Djursholm, Sweden

Mamoun Muhammed