摘要:
The present invention provides a zirconium based alloy member which has very small deformation of elongation and bow occurring due to irradiation growth, a method of manufacturing it, and particularly an channel box for an atomic reactor fuel assembly. A zirconium based alloy plate member having a width of not less than 100 mm and a long length, containing not more than 5 wt % Nb and/or not more 5 wt % Sn, the member having (0001) orientation (Fl value) of hexagonal Zr with respect to longitudinal direction ranging from 0.20 to 0.35, the difference in Fl between the middle and the end being not more than the value calculated from (0.0935.times.Fl-0.00585) and an amount of bow at neutron irradiation of 35 GWd/t which bow occurs in the channel box for a reactor being not more than 2.16 mm.
摘要翻译:本发明提供一种锆基合金构件,其由于照射生长而具有非常小的伸长变形和弓形,其制造方法,特别是用于原子反应堆燃料组件的通道箱。 一种宽度不小于100mm,长度不大于5重量%的Nb和/或不多于5重量%Sn的锆基合金板构件,具有(0001)取向(F1值)为 相对于纵向为0.20〜0.35的六方晶相,中间和末端之间的F1的差不大于由(0.0935xFl-0.00585)计算的值,中子照射下的弓的量为35GWd / t 在弯道出现弯道不大于2.16mm的反应堆。
摘要:
A channel box for a nuclear-reactor fuel assembly (MOX fuel assembly) containing plutonium, capable of properly controlling the excess reactivity without mixing neutron absorber or burnable poison into a fuel rod, and a channel box for a nuclear-reactor fuel assembly which does not form any gap between the channel box and members containing burnable poison in the channel box and in which the burnable poison does not directly contact with reactor water.
摘要:
A thermoelectric conversion material is provided, in which only a desired crystal is selectively precipitated. An MxV2O5 crystal is selectively precipitated in vanadium-based glass, wherein M is one metal element selected from the group consisting of iron, arsenic, antimony, bismuth, tungsten, molybdenum, manganese, nickel, copper, silver, an alkali metal and an alkaline earth metal, and 0
摘要翻译:提供了仅选择性沉淀所需晶体的热电转换材料。 在钒基玻璃中选择性地析出M x V 2 O 5晶体,其中M是选自铁,砷,锑,铋,钨,钼,锰,镍,铜,银,碱金属和碱中的一种金属元素 地球金属,0
摘要:
An amorphous carbon layer sticking on a carbon nanotube surface is remarkably reduced when a carbon nanotube is joined to a conductive substrate by bringing a single fibrous carbonaceous material in contact with the tip of the conductive substrate and covering at least a part of the contact portion with a conductive material while at lest either of the fibrous carbonaceous material or the conductive substrate is heated in a vacuum.
摘要:
The present invention provides a cantilever having a base fixed to an inspecting apparatus, a beam protruding from the base, and a probe fixed to an end of the beam, wherein: the probe is formed by use of a carbon nanotube; and the probe is fixed by metal layers from at least two directions when the cantilever is operated, the probe protrudes in a direction in which a sample is fixed. It is possible to prevent the probe from warping and suppress image failures during observation of a sample.
摘要:
A field emission electron gun has a field emission cathode composed of a carbon fiber and a conductive base for supporting the carbon fiber, an extractor for causing the field emission of electrons, and an accelerator for accelerating the electrons. The carbon fiber contains at least one of trivalent and pentavalent elements. In particular, the trivalent and pentavalent elements are boron and/or nitrogen. The content of at least one of boron and nitrogen in the carbon fiber is 0.1% to 5% at an atomic weight ratio of the contained element to carbon. The diameter of the carbon fiber is 20 nm to 200 nm. Such an electron gun can have a high-brightness electron beam with a narrow energy width. The field emission electron gun is applied to various electron beam apparatus.
摘要:
In a thermoelectric conversion device, support substrates (13, 14), electrodes (11, 12) formed on the support substrates and thermoelectric conversion parts (7, 10) formed on the electrodes and containing semiconductor glass are disposed. The semiconductor glass is non-lead glass containing vanadium, and the electrodes contain any of Al, Ti, Ti nitride, W, W nitride, W silicide, Ta, Cr and Si.This constitution makes it possible to provide a device structure which can be produced by an inexpensive production process, uses a composite material with an excellent thermoelectric conversion characteristic and can solve the characteristic problem of the composite material. As a result, it is possible to provide a thermoelectric conversion device with excellent characteristics and high reliability at a low cost.
摘要:
The present invention aims at providing a lead-free glass composition that can be soften and flowed at a firing temperature that is equal to or lower than that of conventional low melting point lead glass. Furthermore, the present invention aims at providing a lead-free glass composition having fine thermal stability and fine chemical stability in addition to that property. The lead-free glass composition according to the present invention is characterized by comprising at least Ag2O, V2O5 and TeO2 when the components are represented by oxides, wherein the total content ratio of Ag2O, V2O5 and TeO2 is 75 mass % or more. Preferably, the lead-free glass composition comprises 10 to 60 mass % of Ag2O, 5 to 65 mass % of V2O5, and 15 to 50 mass % of TeO2.
摘要翻译:本发明的目的在于提供一种无铅玻璃组合物,其可以在等于或低于常规低熔点铅玻璃的烧制温度下软化和流动。 此外,本发明的目的在于提供除了该性能之外还具有精细的热稳定性和细化学稳定性的无铅玻璃组合物。 根据本发明的无铅玻璃组合物的特征在于,当组分由氧化物表示时,至少含有Ag 2 O,V 2 O 5和TeO 2,其中Ag 2 O,V 2 O 5和TeO 2的总含量比为75质量%以上。 优选地,无铅玻璃组合物包含10〜60质量%的Ag 2 O,5〜65质量%的V 2 O 5和15〜50质量%的TeO 2。
摘要:
In order to provide a semiconductor junction element consisted of an oxide semiconductor glass, which does not contain a toxic element and rare metal element, and various semiconductor devices using it, semiconductor glasses which contain vanadium oxide and have different polarities are connected each other in a semiconductor junction element of the present invention. Moreover, a semiconductor glass containing vanadium oxide is connected to an element semiconductor or a compound semiconductor which have different polarity from the semiconductor glass. Furthermore, a semiconductor glass containing vanadium oxide is connected to a metal.
摘要:
A lithium ion secondary battery has a high cycle retention rate, and has its battery capacity increased. A positive electrode active material is used which includes a crystal phase having a structure formed by collecting a plurality of crystallites 101, and powder particles containing amorphous phases 103a and 103b formed between the crystallites 101. The amorphous phases 103a and 103b contain one or more kinds of metal oxides selected from the group consisting of vanadium oxide, iron oxide, manganese oxide, nickel oxide and cobalt oxide. The crystal phase and the amorphous phase 103a and 103b are capable of intercalation and deintercalation of lithium ions.