摘要:
An apparatus includes a ceramic matrix composite (CMC) component and an interface coating on the CMC component, wherein the interface coating includes a layer of at least one of the following compositions: 100 wt % Ir; 90-95 wt % Ir, 5-10 wt % Co, 1-2 wt % Al, 1-2 wt % Si; 40-50 wt % Nb, 28-42 wt % Al, 4-15 wt % Cr, 1-2 wt % Si; 90-92 wt % Mo, 4-5 wt % Si, 4-5 wt % B; or 60-80 wt % V, 20-30 wt % Cr, 2-15 wt % Ti.
摘要:
A circuit board is provided with a metal wiring layer 12 on at least one principal surface of a ceramic sintered body 11, wherein the above-described metal wiring layer includes a first region 12a which is in contact with the principal surface and which contains a glass component and a second region 12b which is located on the first region 12a and which does not contain a glass component, the thickness of the first region 12a is 35% or more and 70% or less of the thickness of the metal wiring layer 12, and the average grain size in the first region 12a is smaller than the average grain size in the second region 12b.
摘要:
A process of producing a ceramic matrix composite (CMC) is provided the steps of preparing a ceramic material having a plurality of pores as a CMC substrate; heating a metal material to be molten wherein the metal material has a melting point lower than the CMC substrate and has a high activity; adding the CMC substrate to the molten metal material so that the molten metal material enters the pores of the CMC substrate to occur chemical reactions; removing the CMC substrate filled with the molten metal material; and cooling the removed CMC substrate filled with the molten metal material to form a CMC having a plurality of metal grains. Plain strain fracture toughness (KIC) of typical ceramic S26 is 4.53 MPa m1/2. As a comparison, CMC has KIC of 21.11 MPa m1/2 about 466% of ceramic S26.
摘要:
The present disclosure provides a composite heat-dissipation substrate and a method of manufacturing the same. The composite heat-dissipation substrate includes a first ceramic layer having insulating properties, a second porous ceramic layer and a metal layer, wherein the first ceramic layer and the second ceramic layer are continuously connected to each other so as not to form an interface therebetween, and the metal layer is infiltrated into plural pores of the second ceramic layer to be coupled to the ceramic layers, whereby interfacial coupling force between the ceramic layers and the metal layer is very high, thereby providing significantly improved heat dissipation characteristics.
摘要:
A novel metal/ceramic hybrid material in which the void space of the ceramic is filled with metal. The metal may be bonded to the ceramic, for example by formation of a metal oxide. The metal may be introduced into the ceramic as small particles in a suspension then heated to melt the metal, allowing bonding to the ceramic or better filling of the void space. The hybrid material may be used in a variety of applications.
摘要:
In the case of a metal-ceramic substrate with a multilayered ceramic material in sheet form, and with at least one metallization that is provided on one surface side of the ceramic material and is joined to be ceramic material by direct bonding or active soldering, the ceramic material has at least one inner layer or base layer of a silicon nitride ceramic. The surface side of the ceramic material that is provided with the at least one metallization is formed by an intermediate layer of an oxidic ceramic applied to the base layer.
摘要:
The invention relates to an inlaid ceramic decoration (10) including a ceramic body (11) that has at least one recess (12) forming the pattern for a decoration (13). According to the invention, said at least one recess is entirely filled by first and second electrically conductive layers (14, 15) of approximately 50 nm and a metallic galvanic plating (16) so as to form a ceramic element (10) inlaid with at least one metallic decoration (13) with improved visual rendering.The invention also relates to the method of manufacturing the inlaid ceramic element.The invention concerns the field of decorated ceramic parts.
摘要:
Thick film conductive copper pastes that are lead-free and cadmium-free. The inventive copper pastes possess desirable characteristics, including good solderability, good wire bondability, a low firing temperature, and a wide temperature processing window, and provide excellent adhesion to a variety of substrates, including alumina and glass coated stainless steel substrates, as well as low resistivity, and a microstructure after firing that is dense and substantially free of pores.
摘要:
Methods of applying metallic coatings to non-metallic, non-conductive, chemically active, corrosion-susceptible or otherwise uncoatable substrates are provided, wherein the metallic coatings strongly adhere to the substrates. First, an intermediate coating is applied on the substrate. Then, the intermediate coating is treated. A metallic coating is subsequently applied on the treated intermediate coating.
摘要:
A method of producing a metal-graphite foam composite, and particularly, the utilization thereof in connection with a cooling apparatus. Also provided is a cooling apparatus, such as a liquid cooler or alternatively, a heat sink for electronic heat-generating components, which employ the metal-graphite foam composite.