摘要:
A metal oxide material comprises components, the composition of which is expressed by the following composition formula (I):Ln.sub.a Ca.sub.b Sr.sub.c Ba.sub.d Cu.sub.2+e-h M.sub.h O.sub.6+f C.sub.g(I)wherea+b+c+d=3, 0.2.ltoreq.a.ltoreq.0.8,0.2.ltoreq.b.ltoreq.1.0, 0.3.ltoreq.c.ltoreq.2.2,0.ltoreq.d.ltoreq.1.7, 0.ltoreq.e.ltoreq.0.8,0.ltoreq.h.ltoreq.0.2, 0
摘要翻译:金属氧化物材料包含组分,其组成由以下组成式(I)表示:LnaCabSrcBadCu2 + e-hMhO6 + fCg(I)其中a + b + c + d = 3,0.2, =0.8,0.2≤b≤1.0,0.3≤n≤2.2,0≤d≤1.7,0,0≤i≤0.8,0≤h= = 0.2,0
摘要:
A novel metallic oxide of a Ln-Ca-Sr-Ba-Cu-B-O type and a process for manufacturing such a metallic oxide. The above metallic oxide has a composition expressed by the following formula (I):(Ln.sub.1-a Ca.sub.a)(Sr.sub.2-b Ba.sub.b)(Cu.sub.3-c B.sub.c)O.sub.d(I)wherein Ln is one or more kinds of elements selected from the group consisting of Y and lanthanoid elements except for Ce and Tb and wherein the following conditions are met: 0.1.ltoreq.a.ltoreq.0.5, 0.7.ltoreq.b.ltoreq.1.7, 0.1.ltoreq.c.ltoreq.0.5, and 6.5.ltoreq.d.ltoreq.7.5. A process for manufacturing the metallic oxide has the following steps. A mixture of materials including H.sub.3 BO.sub.3 used as a starting material of B is prepared. The resultant mixture is heated at a rate of 5.degree. C. or lower per minute up to 900.degree. C. or lower. Then, it is heated in an oxygen atmosphere at a range from 900.degree.-1050.degree. C.
摘要:
Provided is a metal oxide material represented by the composition formula of Ln.sub.a Sr.sub.b Cu.sub.3-x M.sub.x O.sub.c, where 2.7.ltoreq.a+b.ltoreq.3.3; 0.8 .ltoreq.a.ltoreq.1.2; 6.ltoreq.c.ltoreq.9; and 0.05 .ltoreq.x.ltoreq.0.7, Ln is at least one element selected from the group of elements of Y and lanthanoids or an atomic group consisting of said elements, and M is at least one element selected from the group of elements of Ti, V, Ga, Ge, Mo, W and Re or an atomic group consisting of said elements.
摘要翻译:提供由组成式LnaSrbCu3-xMxOc表示的金属氧化物材料,其中2.7 a + b 3.3; 0.8 = a = 1.2; 6 = c = 9; 和0.05≤x≤0.7,Ln是选自Y和镧系元素的元素组或由所述元素组成的原子团中的至少一种元素,M是选自以下元素组中的至少一种元素: Ti,V,Ga,Ge,Mo,W和Re或由所述元素组成的原子团。
摘要:
Provided is a metal oxide material represented by the composition formula of Ln.sub.a Sr.sub.b Cu.sub.3-x M.sub.x O.sub.c, where 2.7.ltoreq.a+b.ltoreq.3.3; 0.8.ltoreq.a.ltoreq.1.2; 6.ltoreq.c.ltoreq.9; and 0.05 .ltoreq.x.ltoreq.0.7, Ln is at least one element selected from the group of elements of Y and lanthanoids or an atomic group consisting of said elements, and M is at least one element selected from the group of elements of Ti, V, Ga, Ge, Mo, W and Re or an atomic group consisting of said elements.
摘要翻译:提供由组成式LnaSrbCu3-xMxOc表示的金属氧化物材料,其中2.7 a + b 3.3; 0.8 = a = 1.2; 6 = c = 9; 和0.05≤x≤0.7,Ln是选自Y和镧系元素的元素组或由所述元素组成的原子团中的至少一种元素,M是选自以下元素组中的至少一种元素: Ti,V,Ga,Ge,Mo,W和Re或由所述元素组成的原子团。
摘要:
A metal oxide manufacturing method includes the steps of preparing the metal oxide expressed by a general formula of AXBYCZDn, (where A represents at least one element selected from a group consisting of a rare earth element, yttrium and an element obtained either by substituting part of rare earth elements with alkali metals or alkali earth metals or by substituting part of yttrium with alkali metals or alkali earth metals, B represents an alkali earth metal, C represents copper or an element obtained by substituting part of copper with transition metals, and D represents oxygen, and where when X=1, Y=2 to 4, Z=2.7 to 6 and n=6 to 13), reducing the metal oxide expressed by the general formula, and halogenating the reduced metal oxide. Part of oxygen (D) of the metal oxide expressed by the general formula is substituted with the halogen elements.
摘要:
A superconducting apparatus includes a cryogenic chamber, superconducting equipment contained in the cryogenic chamber and a lead secured to the cryogenic chamber and connected to the superconducting equipment. A structured member for a prevention of an electric discharge is provided between the lead and an area for securing the lead of the cryogenic chamber. The structured member for the prevention of electric discharge may be a laminate of a conducting layer and a insulating layer having recoverable and non-recoverable insulation, and have an effect of shielding the corresponding lead from electromagnetic noises.
摘要:
By applying a drive voltage Vf [V] between first and second conductive films, when electrons are emitted by the first conductive film, an equipotential line of 0.5 Vf [V] is inclined toward the first conductive film, rather than toward the second conductive film, in the vicinity of the electron emitting portion of the first conductive film, in a cross section extending across the electron emitting portion and the portion of the second conductive film located nearest the electron emitting portion. The present invention improves electron emission efficiency.
摘要:
An electron-emitting device has an insulating layer having a side surface, a recess portion formed on the side surface of the insulating layer, a gate electrode which is arranged above the recess portion, and a wedge-shaped emitter which is arranged on an edge of a lower side of the recess portion and has a first slope on a side of the recess portion and a second slope on a side opposite to the recess portion. A lower end of the first slope of the emitter enters the recess portion, and both the first slope and the second slope of the emitter tilt to an outside of the recess portion.
摘要:
An electron-emitting device has an insulating layer having a side surface, a recess portion formed on the side surface of the insulating layer, a gate electrode which is arranged above the recess portion, and a wedge-shaped emitter which is arranged on an edge of a lower side of the recess portion and has a first slope on a side of the recess portion and a second slope on a side opposite to the recess portion. A lower end of the first slope of the emitter enters the recess portion, and both the first slope and the second slope of the emitter tilt to an outside of the recess portion.
摘要:
An effective voltage V′ effectively applied to a gap 7 during an “activation step” is controlled to a desired value. In the “activation step”, a voltage is repeatedly applied between a first electroconductive film 4a and a second electroconductive film 4b while controlling voltages outputted from a voltage source 51 so that a value βeffect becomes a desired value.