Class / Patent application number | Description | Number of patent applications / Date published |
501093000 | Plural carbides (i.e., carbides of plural metals) containing | 13 |
20080220962 | Method for forming ultrafine particle brittle material at low temperature and ultrafine particle brittle material for use therein - A method for forming an ultrafine particle brittle material at low temperature which includes the steps of applying a mechanical impact force or a pressure to a ultrafine particle brittle material so as to have a percentage in the ultrafine particles having a primary particle diameter less than 50 nm in all the particles of 10 to 90%, subjecting the resulting brittle material to a heat treatment at a temperature not higher than the sintering temperature thereof so as to have the above percentage of 50% or less, and then applying a mechanical impact force not less than the crushing strength to the resultant material, to crush the material, thereby joining the ultrafine particles in the brittle material with one another, to form a formed article of the ultrafine particle brittle material; and an ultrafine particle brittle material for use in the method. | 09-11-2008 |
20100248931 | PRODUCTS PRODUCED BY A PROCESS FOR DIFFUSING TITANIUM AND NITRIDE INTO A MATERIAL HAVING A GENERALLY COMPACT, GRANULAR MICROSTRUCTURE - A method for diffusing titanium and nitride into a base material having a generally compact, granular microstructure (e.g., carbide). The method generally includes the steps of providing a base material having a generally compact, granular microstructure; providing a salt bath which includes sodium dioxide and a salt selected from the group consisting of sodium cyanate and potassium cyanate; dispersing metallic titanium formed by electrolysis of a titanium compound in the bath; heating the salt bath to a temperature ranging from about 430° C. to about 670° C.; and soaking the base material in the salt bath for a time of from about 10 minutes to about 24 hours. In accordance with another aspect of the present invention, the base material may further be treated with conventional surface treatments or coatings. | 09-30-2010 |
20100273637 | Ceramic and Cermet Having The Second Phase To Improve Toughness Via Phase Separation From Complete Solid-Solution Phase And The Method For Preparing Them - This invention relates to a ceramic and a cermet each having a second phase for improving toughness via phase separation from a complete solid-solution phase and to a method of preparing them. The ceramic and the cermet may have the second phase phase-separated from the complete solid-solution phase, thereby easily achieving a great improvement in toughness and exhibiting other good properties including high strength, consequently enabling the manufacture of high-strength and high-toughness cutting tools, instead of conventional WC—Co hard materials. | 10-28-2010 |
20100273638 | SOLID-SOLUTION CARBIDE/CARBONITRIDE POWDER AND METHOD FOR PREPARING THEREOF - The present invention relates to a complete solid solution powder used for preparing a cermet composite sintered body, and method for preparing thereof. Particularly, the present invention is directed to a complete solid solution powder which can improve, to a great extent, toughness of a cermet sintered body which is used for high-speed cutting tool materials and die materials in the field of metal working, such as various machine industries and automobile industry, and method for preparing thereof. | 10-28-2010 |
20110111945 | INERT HIGH HARDNESS MATERIAL FOR TOOL LENS PRODUCTION IN IMAGING APPLICATIONS - A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. % impurities, and balance being tungsten. The tungsten carbide material has a nominal grain size of less than 0.5 microns. | 05-12-2011 |
20110177934 | Sintered Cermet and Cutting Tool - A sintered cermet and a cutting tool are provided which have high toughness and high anti-chipping. The sintered cermet comprises a hard phase composed of one or more kinds selected from carbides, nitrides, and carbonitrides of one or more metals selected from metals belonging to Groups 4, 5, and 6 of the periodic table, each of which is composed mainly of Ti; and a binder phase composed mainly of Ni and Co. When the crystal lattice constant of the binder phase is measured by Pawley method, two kinds of binder phases having two kinds of crystal lattice constants 31 and 32 exist in the interior of the sintered cermet. Alternatively, two peaks belonging to the (220) plane of the hard phase, namely, a low-angle-side-peak and a high-angle-side peak are detected in the interior of the sintered cermet, and a modified part exists in the vicinity of the surface, in which three peaks belonging to the (220) plane of the hard phase, namely, the low-angle-side peak, an intermediate-position peak, and the high-angle-side peak are detected. | 07-21-2011 |
20110183832 | FINE GRAINED CEMENTED CARBIDE WITH REFINED STRUCTURE - The present invention relates to a fine grained WC-Co cemented carbide. By adding an extremely small amount of Ti, V, Zr, Ta or Nb alone or in combinations, a grain refined cemented carbide structure with less abnormal WC-grains has been obtained. | 07-28-2011 |
20110195834 | Wear Resistant Two-Phase Binderless Tungsten Carbide and Method of Making Same - An ultrafine grain two-phase binderless tungsten carbide material is disclosed. The material contains, in weight percent, ditungsten carbide in the range of about 1 to about 10 percent, up to about 1.0 percent vanadium carbide and/or chromium carbide, up to about 0.2 percent cobalt, and the balance tungsten carbide, wherein the wear resistant material has a hardness of at least about 2,900 kg/mm | 08-11-2011 |
20110212825 | HARD-METAL - The invention relates to a hard-metal comprising at least 13 volume % of a metal carbide selected from the group consisting of TiC, VC, ZrC, NbC, MoC, HfC, TaCl WC or a combination thereof, a binder phase comprising one or more of iron-group metals or alloy thereof and 0.1 to 10 weight % Si and 0.1 to 10 weight % Cr and having a liquidus temperature at 1280 degrees C. or lower and 3 to 39 volume % of diamond or cBN grains coated with a protective coating or a mixture thereof and a process for making the hard-metal. | 09-01-2011 |
20110218093 | LIGHTWEIGHT, ANTI-SCRATCH AND FRACTURE RESISTANT MATERIAL FOR USE IN THE MANUFACTURE OF JEWELRY - The present invention relates to a lightweight, anti-scratch and fracture resistant material for use in manufacture of jewelry prepared by sintering a powered mixture consisting essentially of 20% by weight of titanium carbide, 25% by weight of tungsten carbide, 35% by weight of titanium nitride, and balance being a binder consisting essentially of nickel, molybdenum and cobalt. | 09-08-2011 |
20110312484 | ALUMINUM BORON CARBIDE COMPOSITE AND METHOD TO FORM SAID COMPOSITE - An improved aluminum-boron carbide (ABC) composite has been discovered that is comprised of a continuous network of AlB | 12-22-2011 |
20140336034 | MIXER, METHOD OF MIXING RAW MATERIAL FOR POWDER METALLURGY BINDER FOR INJECTION MOULDING COMPOSITION - Mixer for ceramic feedstock pellets with a tank, a mixing means, and heat exchange means including cooling means for the cooling of the content of this tank. | 11-13-2014 |
20160023952 | CERAMIC COMPOSITION AND CUTTING TOOL - In a ceramic composition mainly composed of alumina (Al | 01-28-2016 |