A cubic boron nitride sintered body including cubic boron nitride and a binder phase, wherein: a content ratio of the cubic boron nitride is 85 volume % or more and 95 volume % or less, a content ratio of the binder phase is 5 volume % or more and 15 volume % or less, the binder phase contains Co.sub.3W.sub.3C, W.sub.2Co.sub.21B.sub.6, and an Al compound, and I.sub.B/I.sub.A is 0.02 or more and 0.15 or less, I.sub.C/I.sub.A is 0.02 or more and 1.00 or less, and I.sub.C?I.sub.D, where I.sub.A denotes an X-ray diffraction peak intensity of a (111) plane of the cubic boron nitride, I.sub.B denotes an X-ray diffraction peak intensity of a (400) plane of the Co.sub.3W.sub.3C, I.sub.C denotes an X-ray diffraction peak intensity of a (420) plane of the W.sub.2Co.sub.21B.sub.6, and I.sub.D denotes an X-ray diffraction peak intensity of a (001) plane of WC.

A cubic boron nitride sintered body including cubic boron nitride and a binder phase, wherein: a content ratio of the cubic boron nitride is 85 volume % or more and 95 volume % or less, a content ratio of the binder phase is 5 volume % or more and 15 volume % or less, the binder phase contains Co.sub.3W.sub.3C, W.sub.2Co.sub.21B.sub.6, and an Al compound, and I.sub.B/I.sub.A is 0.02 or more and 0.15 or less, I.sub.C/I.sub.A is 0.02 or more and 1.00 or less, and I.sub.C?I.sub.D, where I.sub.A denotes an X-ray diffraction peak intensity of a (111) plane of the cubic boron nitride, I.sub.B denotes an X-ray diffraction peak intensity of a (400) plane of the Co.sub.3W.sub.3C, I.sub.C denotes an X-ray diffraction peak intensity of a (420) plane of the W.sub.2Co.sub.21B.sub.6, and I.sub.D denotes an X-ray diffraction peak intensity of a (001) plane of WC.

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations.

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations.

The sputtering target of the present disclosure includes: an aluminum matrix; and (1) a material or phase containing aluminum and further containing either a rare earth element or a titanium group element or both a rare earth element and a titanium group element or (2) a material or phase containing either a rare earth element or a titanium group element or both a rare earth element and a titanium group element, at a content of 10 to 70 mol % in the aluminum matrix.

The sputtering target of the present disclosure includes: an aluminum matrix; and (1) a material or phase containing aluminum and further containing either a rare earth element or a titanium group element or both a rare earth element and a titanium group element or (2) a material or phase containing either a rare earth element or a titanium group element or both a rare earth element and a titanium group element, at a content of 10 to 70 mol % in the aluminum matrix.

A composition of matter for use in a binder jet is provided. The composition includes a binder, and the binder includes a polymer made from saturated monomers. The binder may be a reversible binder that decomposes during sintering. And, different binders may be used in different locations of a target object produced using the inventive compositions.

Provided is a hard sintered body which exhibits excellent high temperature oxidation resistance and has a high hardness at a high temperature. In the hard sintered body, a binder phase is contained at from 8.8 to 34.4 mol % and the balance is composed of a hard phase and inevitable impurities. The binder phase contains iron aluminide containing FeAl as a main component and alumina that is dispersed in iron aluminide and has a particle size of 1 m or less. The hard phase is composed of at least one kind selected from carbides, nitrides, carbonitrides and borides of Group 4 metals, Group 5 metals and Group 6 metals in the periodic table, and solid solutions of these. This hard sintered body is obtained by mixing and pulverizing a binding particle powder containing an iron aluminide powder composed of at least one kind selected from FeAl.sub.2, Fe.sub.2Al.sub.5 and FeAl.sub.3 and a hard particle powder composed of at least one kind selected from carbides, nitrides, carbonitrides and borides of Group 4 metals, Group 5 metals and Group 6 metals in the periodic table and then sintering a mixed powder thus obtained.

Provided is a hard sintered body which exhibits excellent high temperature oxidation resistance and has a high hardness at a high temperature. In the hard sintered body, a binder phase is contained at from 8.8 to 34.4 mol % and the balance is composed of a hard phase and inevitable impurities. The binder phase contains iron aluminide containing FeAl as a main component and alumina that is dispersed in iron aluminide and has a particle size of 1 m or less. The hard phase is composed of at least one kind selected from carbides, nitrides, carbonitrides and borides of Group 4 metals, Group 5 metals and Group 6 metals in the periodic table, and solid solutions of these. This hard sintered body is obtained by mixing and pulverizing a binding particle powder containing an iron aluminide powder composed of at least one kind selected from FeAl.sub.2, Fe.sub.2Al.sub.5 and FeAl.sub.3 and a hard particle powder composed of at least one kind selected from carbides, nitrides, carbonitrides and borides of Group 4 metals, Group 5 metals and Group 6 metals in the periodic table and then sintering a mixed powder thus obtained.

A polycrystalline super hard construction has a first region comprising a body of thermally stable polycrystalline super hard material having an exposed surface forming a working surface, and a peripheral side edge, said polycrystalline super hard material comprising a plurality of intergrown grains of super hard material; a second region forming a substrate to the first region, the second region comprising a hard phase and a binder phase; and a third region interposed between the first and second regions, the third region extending across a surface of the second region along an interface. The third region comprises a composite material having a first phase comprising a plurality of non-intergrown grains of super hard material, and a matrix material. The super hard polycrystalline construction further has a fourth region interposed between the second region and the third region, a major proportion of the fourth region comprising one or more components of the binder material of the second region, the fourth region further comprising one or more reaction products between the binder material of the second region and one or more components of the third region.