摘要:
In various embodiments, a polycrystalline diamond compact (“PDC”) comprises a substrate including an interfacial surface having a raised region. The PDC comprises a polycrystalline diamond (“PCD”) table bonded to the interfacial surface of the substrate. The PCD table defines an upper surface and exhibits a thickness over the raised region. The PCD table includes a plurality of bonded diamond grains defining a plurality of interstitial regions. A first region of the PCD table adjacent to the substrate includes metal-solvent catalyst disposed interstitially between the bonded diamond grains thereof, and a leached second region of the PCD table extends inwardly from the upper surface. The interstitial regions of the leached second region are depleted of metal-solvent catalyst. The geometry of the PCD table and raised region may be selected so that residual compressive stresses therein are retained to a sufficient level after leaching to provide a damage tolerant/thermally-stable PCD table.
摘要:
This invention pertains to a composite of AlON and a germanate glass, and to a process for bonding AlON to the glass. The composite includes AlON and glass bonded together and having transmission in the visible and mid-infrared wavelength region. The process includes the step of heating them together above the softening temperature of the glass, the composite having excellent, i.e., typically in excess of about 60%, transmission in the 0.4-5 wavelength region.
摘要:
Carbon-ceramic brake disks that comprise several layers, whereby at least one layer is used as a bearing element and at least one layer acts as a friction layer, whereby the bearing element and at least one friction layer are separated by an intermediate layer, characterized in that the intermediate layer has reinforcement fibers in the form of fiber bundles, whereby the fiber bundles are encased by a layer that consists of a mixture of silicon carbide, silicon and carbon, which can be obtained by heat treatment of a mixture that consists of silicon powder and a carbonized resin or carbonized pitch at a temperature of 900° C. up to 1700° C. in an environment devoid of oxidizing agents. A process for their manufacture and use, in particular in automotive brake systems.
摘要:
A manufacturing method of ceramic multi-layer boards including a step of forming adhesive layer (12) on ceramic board (11), and adhesive layer (12) integrates board 11 and ceramic green sheet 14. Little shrinkage in an in-plane direction is observed after firing, so that the ceramic multi-layer boards having highly dimensional accuracy are manufactured.
摘要:
A manufacturing method of ceramic multi-layer boards including a step of forming adhesive layer (12) on ceramic board (11), and adhesive layer (12) integrates board 11 and ceramic green sheet 14. Little shrinkage in an in-plane direction is observed after firing, so that the ceramic multi-layer boards having highly dimensional accuracy are manufactured.
摘要:
A print and fusion process is used to fabricate ceramic elements that are subsequently utilized to generate a composite including a fibrous mat and discrete ceramic elements. The composite may include a substrate and a flexible or rigid non-ceramic composition between the discrete ceramic elements and/or the substrate. A ceramic ink preferably partially penetrates the fibrous mat to form the discrete elements or a continuous layer.
摘要:
A method for producing a laminated tile is disclosed which comprises providing a sheet of natural stone having opposed first and second major surfaces and providing a plurality of ceramic substrates, each having opposed first and second major surfaces. An adhesive material is provided on at least one of the first and second major surface of the sheet of natural stone and the first major surface of each of the plurality of ceramic substrates. The plurality of ceramic substrates and the sheet of natural stone are assembled to form a laminated assembly such that the first surface of each of a portion of the plurality of ceramic substrates faces the first major surface of the sheet of natural stone with adhesive material therebetween, and the remainder of the ceramic substrates face the second major surface of the sheet of natural stone with adhesive material therebetween. The sheet of natural stone having the ceramic substrates adhered thereto is cut along a plane substantially parallel to the first and second major surfaces of the sheet of natural stone to form two laminates, each having an exposed layer of natural stone and ceramic substrates adhered thereto. Then the exposed layer of natural stone of each of the two laminates is polished. The laminated tiles produced by the method are also disclosed.
摘要:
A method for producing a ceramic circuit substrate comprising the steps of forming brazing regions each comprising brazing material powder and an organic binder on a ceramic substrate; setting metal plates on the ceramic substrate via the brazing regions, and heating the ceramic substrate, the brazing regions and the metal plates to bond the metal plates to the ceramic substrate via brazing layers made of the brazing material, thereby forming a bonded body; and cleaning the bonded body with a hypochlorite-containing agent.
摘要:
A multilayer ceramic electronic component includes a ceramic body including a plurality of dielectric layers stacked on each other and having first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction, parallel to a stacking direction and connected to the first and second surfaces, and fifth and sixth surfaces opposing each other in a third direction and connected to the first to fourth surfaces, first and second external electrodes disposed on the first and second surfaces of the ceramic body, respectively, first and second conductive thin films disposed on at least one of the third and fourth surfaces, connected to the first and second external electrodes, respectively, and having a thickness lower than that of the first and second external electrodes, and first and second solder preventing films disposed on the first and second external electrodes, respectively.
摘要:
A braze alloy composition is disclosed, containing nickel, about 5% to about 40% of at least one refractory metal selected from niobium, tantalum, or molybdenum; about 2% to about 32% chromium; and about 0.5% to about 10% of at least one active metal element. An electrochemical cell that includes two components joined to each other by such a braze composition is also described. A method for joining components such as those within an electrochemical cell is also described. The method includes the step of introducing a braze alloy composition between a first component and a second component to be joined, to form a brazing structure. In many instances, one component is formed of a ceramic, while the other is formed of a metal or metal alloy.