摘要:
An oxide superconductor of an arrangement includes an oxide superconductor layer having a continuous Perovskite structure including rare earth elements, barium (Ba), and copper (Cu). The rare earth elements include a first element which is praseodymium, at least one second element selected from the group consisting of neodymium, samarium, europium, and gadolinium, at least one third element selected from the group consisting of yttrium, terbium, dysprosium, and holmium, and at least one fourth element selected from the group consisting of erbium, thulium, ytterbium, and lutetium. When the number of atoms of the first element is N(PA), the number of atoms of the second element is N(SA), and the number of atoms of the fourth element is N(CA), 1.5 × (N(PA) + N(SA)) ≤ N(CA) or 2 × (N(CA) - N(PA)) ≤ N(SA) is satisfied.
摘要:
The invention discloses a soft-magnetic MnZn system power ferrite, and aims at providing a soft-magnetic MnZn system power ferrite with high saturation magnetic flux density and low loss. The soft-magnetic MnZn system power ferrite comprises a main component and an auxiliary component; the main component comprises Fe 2 O 3 , MnO, ZnO and NiO; calculated on the basis of the total weight of the main component, Fe 2 O 3 accounts for 53.0-55.0mol%, ZnO accounts for 3.0-7.0mol%, NiO accounts for 0-1.0mol%, and MnO accounts for the balance; and the auxiliary component comprises CoO, SiO 2 , CaCO 3 , Nb 2 O 5 and ZrO 2 . The soft-magnetic MnZn system power ferrite has the beneficial effects that the saturation magnetic flux density Bs at 100°C is larger than 460mT, and the magnetic core loss Pcv at 100°C is smaller than 320kW/m 3 ; the soft-magnetic MnZn system power ferrite has such favorable performance, so that a device can be further miniaturized in the actual application of a product; and because of rather low loss, the work efficiency of the device can also be further increased.
摘要:
A sintered ferrite magnet having a main phase composed of ferrite having a hexagonal, M-type magnetoplumbite structure, a grain boundary phase containing Si and Ca with a lower atomic ratio of La than in said main phase, and a third phase containing La at a higher atomic ratio than in said main phase, and a method for producing a sintered ferrite magnet having said third phase by calcining starting materials with more La than Ca, adding more than 1% and 1.8% or less by mass of SiO 2 and 1-2% by mass (calculated as CaO) of CaCO 3 to the calcined body, and pulverizing, molding and sintering it.
摘要:
The invention provides a lighting device (1) comprising a plurality of solid state light sources (10) and an elongated ceramic body (100) having a first face (141) and a second face (142) defining a length (L) of the elongated ceramic body (100), the elongated ceramic body (100) comprising one or more radiation input faces (111) and a radiation exit window (112), wherein the second face (142) comprises said radiation exit window (112), wherein the plurality of solid state light sources (10) are configured to provide blue light source light (11) to the one or more radiation input faces (111) and are configured to provide to at least one of the radiation input faces (111) a photon flux of at least 1.0* 10 17 photons/(s.mm 2 ), wherein the elongated ceramic body (100) comprises a ceramic material (120) configured to wavelength convert at least part of the blue light source light (11) into at least converter light (101, wherein the ceramic material (120) comprises an A 3 B 5 O 12 :Ce 3 + ceramic material, wherein A comprises one or more of yttrium (Y), gadolinium (Gd) and lutetium (Lu), and wherein B comprises aluminum (Al).
摘要:
Provided is a honeycomb catalyst in which a plurality of through holes are provided in proximity to each other in a row arrangement in the lengthwise direction, and are set apart by partitions. A honeycomb unit contains at least two types of inorganic particles and an inorganic binder. The inorganic particles contain zeolite having an SiO2/Al2O3 composition ratio of less than 15 and a CHA structure and an oxide other than zeolite, which has a positive thermal expansion coefficient. The ratio (X:Y) of the volume (X) of zeolite and the volume (Y) of oxide is 50:50 to 80:20. A displacement amount of absorbed water is reduced and cracking is controlled while maintaining high NOx purging performance.
摘要翻译:本发明提供一种蜂窝催化剂,其中,多个贯通孔在长度方向上以行排列的方式相互接近地设置,并且通过隔壁而被分开设置。 蜂窝单元含有至少两种类型的无机颗粒和无机粘合剂。 无机粒子含有SiO 2 / Al 2 O 3组成比小于15的沸石和具有正热膨胀系数的CHA结构和除沸石以外的氧化物。 沸石的体积(X)与氧化物的体积(Y)之比(X:Y)为50:50至80:20。 吸收水的排水量减少并且控制裂化,同时保持高NOx排放性能。
摘要:
A method of making a glass sheet includes exposing a refractory block material comprising at least one multivalent component to a reducing atmosphere for a time and at a temperature sufficient to substantially reduce the at least one multivalent component of the refractory block material. The method also includes flowing molten glass over the refractory block material that has been exposed to the reducing atmosphere while preventing substantial re-oxidation of the at least one multivalent component.
摘要:
A method for firing a green honeycomb ceramic body in a kiln may include heating the green honeycomb ceramic body in four stages. The first stage may include heating the green honeycomb ceramic body from room temperature to a first temperature that at a first heating rate that is greater than or equal to about 75° C./hr. The second stage may include heating the green honeycomb ceramic body from the first temperature to a second temperature at a second heating rate that is less than or equal to the first heating rate. The third stage may include heating the green honeycomb ceramic body from the second temperature to a hold temperature at a third heating rate that is less than or equal to the first heating rate. The fourth stage may include holding the green honeycomb ceramic body at the hold temperature to remove residual carbon.