摘要:
A production method of an electroconductive mayenite compound having an electron density greater than or equal to 5×1020 cm−3 includes preparing an object of processing containing a mayenite compound or a precursor of a mayenite compound, placing aluminum foil on at least part of a surface of the object of processing, and retaining the object of processing at temperatures falling within the range of 1080° C. to 1450° C. in a low oxygen partial pressure atmosphere.
摘要:
A method of attaching a pre-sintered body of polycrystalline diamond material to a substrate along an interface therebetween, the substrate being formed of cemented carbide and a metal binder phase dispersed therein, comprises placing a layer comprising one or more elements or alloys thereof on the interface on one or other of the body of polycrystalline diamond material or substrate; the one or more elements being selected to form a eutectic mixture with the metal in the binder phase, the eutectic mixture having a lower melting point than the melting point of the metal in the binder phase of the substrate. The other of the body of polycrystalline diamond material or the substrate is then placed on the layer and the body of polycrystalline material, the layer and the substrate are then subjected to a predetermined temperature at least equal to or greater than the melting point of the eutectic mixture at substantially ambient pressure or a vacuum to melt the metal in the binder phase at the interface with the substrate so that the metal from the binder phase infiltrates into the adjacent body of polycrystalline diamond material to form a bond between the body of polycrystalline diamond material and the substrate.
摘要:
The present invention provides a method of bonding ceramic and metal comprising the steps of bonding metal foils to a bonding surface of a ceramic matrix and a bonding surface of a metal matrix to be bonded and then heating so as to leave metal layers at the surfaces of the metal foils while forming diffusion layers with inclined linear expansion coefficients with materials of the metal foils diffused in them between the ceramic matrix and metal layer and between the metal matrix and metal layer, and making the respective metal layers which remain at the surfaces of the metal foils bond so as to bond the ceramic matrix and the metal matrix.
摘要:
A process for joining a bronze part and a silicon carbide ceramic part comprising: providing a bronze part, a SiC ceramic part, a Al foil and a Ni foil; placing the SiC ceramic part, the Al foil, the Ni foil, and the bronze part into a mold, the Al foil and the Ni foil located between the SiC ceramic part and the bronze part, the Al foil abutting against the SiC ceramic part, the Ni foil abutting against the bronze part and the Al foil; placing the mold into a chamber of an hot press sintering device, heating the chamber and pressing the bronze part, the SiC ceramic part, the Al foil, and the Ni foil at least until the bronze part, the SiC ceramic part, the Al foil and the Ni foil form a integral composite article.
摘要:
A method for manufacturing a multilayer ceramic electronic element includes the steps of forming ceramic green sheets having superior surface smoothness and small variations in thickness at a high speed, in which defects such as pinholes are prevented from occurring, and providing internal electrodes and step-smoothing ceramic paste on the ceramic green sheets with high accuracy. The method includes the steps of applying ceramic slurry to a base film by a die coater followed by drying performed in a drying furnace for forming the ceramic green sheets, and performing gravure printing of conductive paste and ceramic paste onto the ceramic green sheets by using a first and a second gravure printing apparatus, respectively. Accordingly, the internal electrodes are formed, and the step-smoothing ceramic paste is provided in regions other than those in which the internal electrodes are formed.
摘要:
A multilayered microfluidic DNA analysis system includes a cell lysis chamber, a DNA separation chamber, a DNA amplification chamber, and a DNA detection system. The multilayered microfluidic DNA analysis system is provided as a substantially monolithic structure formed from a plurality of green-sheet layers sintered together. The substantially monolithic structure has defined therein a means for heating the DNA amplification chamber and a means for cooling the DNA amplification chamber. The means for heating and means for cooling operate to cycle the temperature of the DNA amplification chamber as required for performing a DNA amplification process, such as PCR.
摘要:
The object of the present invention is to provide an aluminum nitride sintered body which has excellent mechanical strength and in which ceramic particles is prevented from coming off from the surface and/or side thereof and generation of free particles is suppressed. The aluminum nitride sintered body of the present invention is wherein it contains sulfur.
摘要:
A ceramic joint body including a ceramic substrate and a ceramic body such as a cylindrical body firmly bonded to each other and excellent in corrosion resistance in the ceramic substrate for use for a semiconductor product producing/examining the step. The ceramic bonded body includes a ceramic substrate in which a conductor is provided, and a ceramic body bonded to a bottom face of the ceramic substrate. The ceramic bonded body has a region, where no conductor is formed, in at least a part of a region above a bonding interface between the ceramic substrate and the ceramic body.
摘要:
A ceramic material powder for a translucent ceramic is molded with a binder, and the resulting green compact is embedded in a ceramic powder having the same composition with the ceramic material powder. After removing the binder, the green compact embedded in the ceramic powder is fired in an atmosphere having an oxygen concentration higher than that in the removal procedure of the binder and thereby yields a translucent ceramic represented by Formula I: Ba{(SnuZr1-u)xMgyTaz}vOw, Formula II: Ba(ZrxMgyTaz)vOw or Formula III: Ba{(SnuZr1-u)xZntMg1-t)yNbz}vOw. The translucent ceramic has a refractive index of 1.9 or more and is paraelectric.
摘要翻译:用粘合剂将用于半透明陶瓷的陶瓷材料粉末模制,并将所得的生坯压坯与陶瓷材料粉末嵌入具有相同组成的陶瓷粉末中。 在除去粘合剂之后,将包埋在陶瓷粉末中的生坯在氧浓度高于粘合剂的除去程度的气氛中焙烧,从而得到由式I表示的半透明陶瓷:Ba {(Sn u 1 1 1 x u> 式II:Ba(Zr x Si y Ta z z)z H z, 或者式III:Ba({(Sn≡Z1)≡Z> w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w SUB>。 半透明陶瓷的折射率为1.9以上,为顺电性。
摘要:
A sintered aluminum nitride substrate which has a via hole and an internal electrically conductive layer, having high thermal conductivity and high adhesion strength between the sintered aluminum nitride substrate and the internal electrically conductive layer or the via hole and having other excellent properties. The substrate comprising an internal electrically conductive layer, at least one electrically conductive via hole formed between the internal electrically conductive layer and at least one surface of the substrate, wherein the thermal conductivity of the aluminum nitride sintering product at 25° C. is 190 W/mK or more, and the adhesion strength between the aluminum nitride sintering product and the internal electrically conductive layer is 5.0 kg/mm2 or more.
摘要翻译:一种烧结氮化铝衬底,其具有通孔和内部导电层,其在氮化铝烧结氮化物衬底和内部导电层或通孔之间具有高导热性和高粘合强度,并且具有其它优异的性能。 所述衬底包括内部导电层,形成在所述内部导电层和所述衬底的至少一个表面之间的至少一个导电通孔,其中所述氮化铝烧结产品在25℃下的导热率为190W / mK以上,氮化铝烧结体和内部导电层之间的粘合强度为5.0kg / mm 2以上。