Abstract:
An improved composition of titanium sintered titanium carbide is provided. The composition provides an improved degree of strength and toughness and improved compatibility with medical imaging. The composition provides good compatibility with sintered polycrystalline diamond, achieving a good mechanical fit in terms of the combined compressibility and thermal expansion during the sintering process to minimize stress or cracking between the substrate and the diamond layer.
Abstract:
Polycrystalline diamond compacts for use in artificial joints achieve reduced corrosion and improved biocompatibility through the use of solvent metal formulations containing tin and through the control of solvent metal pore size, particularly in inner layers of the compact. Solvent metal formulations containing tin have been discovered which provide sintering ability, part strength, and grind resistance comparable to levels achieved by using CoCrMo solvent metals. It has been discovered that limiting the solvent metal pore size in the diamond layers minimizes or eliminates the occurance of micro cracks in the solvent metal and significantly reduces the corrosion of the compact as manifested by the release of heavy metal ions from the compact. Polycrystalline diamond compacts which utilize both the solvent metal formulations containing tin and the control of pore sizes achieve significantly reduced corrosion and improved biocompatibility compared to prior art polycrystalline diamond compacts.
Abstract:
Consolidated materials comprising a plurality of coated particles dispersed in a tough matrix material are disclosed. The coated particles include a plurality of core particles having an intermediate layer that substantially surrounds each of the core particles. An optional outer layer may be present on the intermediate layer. A matrix contains or substantially contains each of the coated particles, and is formed from at least one third compound including a mixture of W, WC, and/or W 2 C with Co. The amount of Co in the at least one third compound may range from greater than 0 to about 20 weight %. Methods for providing consolidated materials, and articles comprising such consolidated materials are also disclosed.
Abstract:
焼結硬質合金の焼結性を向上させて、均一な組織が得られる、複炭窒化物固溶体を多く含む硬質粉末を提供する。硬質粉末は、(Ti 1-x ,M x )(C 1-y ,N y )[ただし、Mは、W、Mo、Nb、ZrおよびTaからなる群から選択される少なくとも1種の元素を表し、xはTiとMとの合計に対するMの原子比を示し、yはCとNとの合計に対するNの原子比を示し、x、yはそれぞれ、0.05≦x≦0.5、0.01≦y≦0.75である。]で表される複炭窒化物固溶体を90体積%以上含む粉末である。
Abstract translation:公开了一种含有复杂的碳氮化物固溶体的硬质粉末,其提高了烧结硬质合金的烧结性能,并使合金具有均匀的结构。 硬粉末含有不低于90体积%的由下式表示的复合碳氮化物固溶体:(Ti1-x,Mx)(C1-y,Ny)[其中M表示选自以下的至少一种元素: 的W,Mo,Nb,Zr和Ta; x表示M相对于Ti和M的总和的原子比; y表示N相对于C和N的总和的原子比; x和y分别满足0.05 = x = 0.5,0.01 = y = 0.75]。
Abstract:
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.
Abstract translation:一种磁头用基材,由含有60-70质量%Al2O3和30-40质量%TiCXOYNZ(其中X,Y和Z满足0.5 = X = 0.993,0.005 = Y = 0.30,0.002 = Z = 0.20和0.507 = X + Y + Z = 1)。 在烧结体的一部分中,存在于长度为10μm以上的任何直线上存在的TiCXOYNZ晶粒数量的比例为55-75%,基于存在于管线上的Al 2 O 3晶粒数和 TiCXOYNZ晶粒的晶粒。 还提供有:从磁头基板获得的磁头; 以及采用磁头的记录媒体驱动。
Abstract:
A refractory material used in refractory furnace liners, combustion chambers, baffles and artificial fire logs includes alumina silicate; an additive comprising at least one of silicon carbide, silicon nitride, boron carbide, boron nitride and silicon carbo-nitride; and a binder. The refractory material is light weight, has a high noise reduction capacity, is fire resistant and has a reduced silica content. In a most preferred embodiment, the additive makes up 50.0% to 55.0% of the material by weight, the binder makes up 4.5% to 5.0% of the material by weight and the linear shrinkage of the material is no greater than 3.5% at 2600° F. A preferred binder is colloidal silica although many others are suitable. Preferably, the material is free of cellulose fiber and sodium silicate.
Abstract:
The present invention relates to a method of preparing a resistant ceramic material by consolidation of SiC-AlN solution powder including synthesis of a SiC-AlN solid solution, followed by processing steps including crushing (if necessary), milling, sinter-aid addition, binder addition, granulation (if cold-pressed), cold forming and consolidation. This invention also provides a novel resistant ceramic material comprising primarily a homogeneous SiC-AlN solid solution or a homogeneous SiC-AlN solid solution that underwent phase separation, used for military and civil armor, and products that can withstand dynamic loading and are also wear resistant.