SINTERED BODY AND CUTTING TOOL CONTAINING SAME

• Main Authors: KUKINO, Satoru, ISHII, Akito, CHIHARA, Kentaro
• Format: Patent
• Language: English; French; Japanese
• Published: 15.02.2018
• Subjects: ARTIFICIAL STONE; BORING; BROACHING; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; FILING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR; LIME, MAGNESIA; MACHINE TOOLS; MAKING GEARS OR TOOTHED RACKS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; MILLING; PERFORMING OPERATIONS; PLANING; REFRACTORIES; SAWING; SCRAPING; SHEARING; SLAG; SLOTTING; THREAD CUTTING; TRANSPORTING; TREATMENT OF NATURAL STONE; TURNING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH

This sintered body comprises a first material and a second material, wherein the first material is partially-stabilized ZrO2 in which 5-90 vol% of Al2O3 with respect to all the first material is dispersed at crystal grain boundaries or in crystal grains, the second material contains at least one of sialon, silicon nitride, and titanium nitride, and the sintered body contains 1-50 vol% of the first material. L'invention concerne un corps fritté comportant un premier matériau et un second matériau, le premier matériau étant un ZrO2 partiellement stabilisé dans lequel de 5 à 90 % en volume d'Al2O3, par rapport à la totalité du premier matériau, est dispersée au niveau des frontières des grains cristallins ou dans les grains cristallins, le second matériau contenant du sialon et/ou du nitrure de silicium et/ou du nitrure de titane, le corps fritté contenant de 1 à 50 % en volume du premier matériau. 焼結体は、第１材料と第２材料とを含む焼結体であって、前記第１材料は、該第１材料全体に対して５～９０体積％のＡｌ2Ｏ3が結晶粒界または結晶粒内に分散した部分安定化ＺｒＯ2であり、前記第２材料は、サイアロン、窒化ケイ素および窒化チタンのいずれかを少なくとも含み、前記焼結体は、１～５０体積％の前記第１材料を含む。