A lightweight, selectively degradable composite material is disclosed. The composite material comprises a compacted powder mixture of a first powder, the first powder comprising first metal particles comprising Mg, Al, Mn, or Zn, or an alloy of any of the above, or a combination of any of the above, having a first particle oxidation potential, a second powder, the second powder comprising low-density ceramic, glass, cermet, intermetallic, metal, polymer, or inorganic compound second particles, and a third metal powder, the third metal powder comprising third metal particles having an oxidation potential that is different than the first particle oxidation potential. The compacted powder mixture has a microstructure comprising a matrix comprising the first metal particles, the second particles and third particles dispersed within the matrix, the third particles comprising a network of third particles extending throughout the matrix, the composite material having a density of about 3.5 g/cm.sup.3 or less.

Metal-nanoparticle composites, such as metal-boron nitride nanoparticle composites, and methods of manufacturing the same are provided. Ultrasonic casting techniques can be used to achieve uniform dispersion of nanoparticles, such as boron nitride nanotubes (BNNTs) in a metal matrix, such as aluminum. The BNNTs can be incorporated into the melt of the metal, and ultrasonic treatment can then be applied.

Metal-nanoparticle composites, such as metal-boron nitride nanoparticle composites, and methods of manufacturing the same are provided. Ultrasonic casting techniques can be used to achieve uniform dispersion of nanoparticles, such as boron nitride nanotubes (BNNTs) in a metal matrix, such as aluminum. The BNNTs can be incorporated into the melt of the metal, and ultrasonic treatment can then be applied.

The present disclosure relates to a laminate substrate with sintered components. The disclosed laminate substrate includes a substrate body having an opening through the substrate body, a first foil layer, a sintered base component, and a sintered contact film. The first foil layer is formed underneath the substrate body, such that a first portion of the first foil layer fully covers the bottom of the opening. The sintered base component is formed within the opening and over the first portion of the first foil layer. Herein, the sintered base component has a dielectric constant between 10 and 500, or has a relative permeability greater than 5. The sintered contact film is formed over the sintered base component. The sintered base component is confined within the opening by the substrate body on sides, by the first foil layer on the bottom, and by the sintered contact film on the top.

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.

A sintered body includes cubic boron nitride grains as hard phase grains, and has a thermal conductivity of not less than 15 W.Math.m.sup.1.Math.K.sup.1 and not more than 40 W.Math.m.sup.1.Math.K.sup.1, for cutting a nickel-based heat-resistant alloy formed of crystal grains having a fine grain size represented by a grain size number of more than 5 defined by ASTM standard E112-13. A cutting tool includes this sintered body. Accordingly, the sintered body having both high wear resistance and high fracture resistance, as well as the cutting tool including the sintered body are provided.

A sintered body includes cubic boron nitride grains as hard phase grains, and has a thermal conductivity of not less than 15 W.Math.m.sup.1.Math.K.sup.1 and not more than 40 W.Math.m.sup.1.Math.K.sup.1, for cutting a nickel-based heat-resistant alloy formed of crystal grains having a fine grain size represented by a grain size number of more than 5 defined by ASTM standard E112-13. A cutting tool includes this sintered body. Accordingly, the sintered body having both high wear resistance and high fracture resistance, as well as the cutting tool including the sintered body are provided.

Disclosed is a TiN-based sintered body and a cutting tool made of the TiN-based sintered body, which has 70 to 94 area % of a TiN phase, 1 to 25 area % of a Mo.sub.2C phase, and a remainder including a binder phase. The binder phase contains Fe and Ni whose total area ratio is 5 to 15 area %, and an amount of Ni to a total amount of Fe and Ni is 15 to 35 mass %. When an X-ray diffraction profile is measured in the cross section of the TiN-based sintered body, the diffraction peaks of TiN, Mo.sub.2C and FeNi having an fcc structure are present, but the diffraction peaks of FeNi having a bcc structure, a Fe.sub.3Mo.sub.3C phase, and a Fe.sub.3Mo.sub.3N phase are absent. The lattice constant of the TiN is 4.235 to 4.245 , and that of the FeNi having an fcc structure is 3.58 to 3.62 .

Disclosed is a TiN-based sintered body and a cutting tool made of the TiN-based sintered body, which has 70 to 94 area % of a TiN phase, 1 to 25 area % of a Mo.sub.2C phase, and a remainder including a binder phase. The binder phase contains Fe and Ni whose total area ratio is 5 to 15 area %, and an amount of Ni to a total amount of Fe and Ni is 15 to 35 mass %. When an X-ray diffraction profile is measured in the cross section of the TiN-based sintered body, the diffraction peaks of TiN, Mo.sub.2C and FeNi having an fcc structure are present, but the diffraction peaks of FeNi having a bcc structure, a Fe.sub.3Mo.sub.3C phase, and a Fe.sub.3Mo.sub.3N phase are absent. The lattice constant of the TiN is 4.235 to 4.245 , and that of the FeNi having an fcc structure is 3.58 to 3.62 .