MANUFACTURE AND USE OF ZrB2/Cu COMPOSITE ELECTRODES

• Main Authors: EUBANK, PHILIP, T, BOZKURT, BEDRI, BRADLEY, WALTER, L, STUCKER, BRENT, E, NORASETTHEKUL, SOMCHINTANA
• Format: Patent
• Language: English; French
• Published: 12.02.1998
• Edition: 6
• Subjects: ALLOYS; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; FERROUS OR NON-FERROUS ALLOYS; LIME, MAGNESIA; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; SLAG; SOLDERING OR UNSOLDERING; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; TREATMENT OF NATURAL STONE; WELDING; WORKING BY LASER BEAM; WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL

The invention relates to ZrB2/Cu composites, and more specifically to methods of making ZrB2/Cu composite electrodes and methods of using ZrB2/Cu composite electrodes. ZrB2 powder is contacted with a polymer and shaped to a desired form. The polymer is vaporized and the ZrB2 powder is sintered. The sintered ZrB2 is contacted with Cu and heated above the melting point of Cu which causes the Cu to infiltrate the ZrB2, forming the ZrB2/Cu composite electrode. La présente invention concerne des composites ZrB2/Cu, et plus particulièrement des procédés de fabrication d'électrodes composites ZrB2/Cu ainsi que des procédés d'utilisation d'électrodes composites ZrB2/Cu. On met de la poudre ZrB2 en contact avec un polymère et on lui donne la forme voulue; le polymère est vaporisé et la poudre ZrB2 agglomérée par frittage; la poudre ZrB2 agglomérée par frittage est mise en contact avec Cu et chauffée au-delà du point de fusion de Cu, ce qui entraîne l'infiltration de la poudre ZrB2 par Cu, et la formation de l'électrode composite ZrB2/Cu.