Tunsten wire, cathode heater, and filament for vibration service lamp
    1.
    发明申请
    Tunsten wire, cathode heater, and filament for vibration service lamp 审中-公开
    Tunsten线,阴极加热器和振动服务灯丝

    公开(公告)号:US20040244879A1

    公开(公告)日:2004-12-09

    申请号:US10491793

    申请日:2004-04-06

    IPC分类号: C22C027/04

    摘要: A tungsten wire containing 1 to 10% by mass of rhenium has a point which indicates a 2% elongation within a quadrangle formed by joining points with straight lines, where the values of x and y are point (20, 75), point (20, 87), point (90, 75), and point (90, 58), in this order, wherein the wire diameter of the aforementioned tungsten wire is represented by x nullm, and the elongation of the tungsten wire is 2% after electrically heating with an electrical current which is a ratio of y % to the fusion current (FC) at the wire diameter x nullm, and wherein a semi-logarithmic system of coordinates is expressed by a horizontal axis using a logarithmic scale of the aforementioned wire diameter x and a vertical axis using a normal scale of ratio y to the fusion current. According to the above-described configuration, a tungsten wire having a great elongation even under conditions of high temperature can be provided, and the tungsten wire can exhibit an excellent durability when used as component material for constituting cathode heaters and so forth, and the tungsten wire can be manufactured efficiently.

    摘要翻译: 含有1〜10质量%铼的钨丝具有表示在通过连接点与直线形成的四边形内的2%伸长率的点,其中x和y的值为点(20,75),点(20 ,87),点(90,75)和点(90,58),其中上述钨丝的线直径由x mum表示,并且在钨电极之后,钨丝的伸长率为2% 以线径x mum的y%与熔融电流(FC)的比例的电流进行加热,并且其中使用上述线径的对数标度由水平轴表示坐标的半对数系统 x和垂直轴,使用与融合电流的比率y的正常刻度。 根据上述结构,能够提供即使在高温条件下具有大的伸长率的钨丝,并且当用作构成阴极加热器等的组分材料时,钨丝可以表现出优异的耐久性,钨 电线可以有效地制造。

    Thermal-field type electron source composed of transition metal carbide material with artificial facet
    2.
    发明授权
    Thermal-field type electron source composed of transition metal carbide material with artificial facet 有权
    由过渡金属碳化物材料与人造面组成的热场型电子源

    公开(公告)号:US09240301B1

    公开(公告)日:2016-01-19

    申请号:US13851732

    申请日:2013-03-27

    摘要: An electron source is made from mixed-metal carbide materials of high refractory nature. Producing field-enhanced thermionic emission, i.e., thermal-field or extended Schottky emission, from these materials entails the use of a certain low work function crystallographic direction, such as, for example, (100), (210), and (310). These materials do not naturally facet because of their refractory nature. The disclosed electron source made from transition metal carbide material is especially useful when installed in a scanning electron microscope (SEM) performing advanced imaging applications that require a high brightness, high beam current source.

    摘要翻译: 电子源由具有高耐火性质的混合金属碳化物材料制成。 从这些材料产生场强增强的热离子发射,即热场或延伸的肖特基发射需要使用某种低功函数的晶体学方向,例如(100),(210)和(310) 。 这些材料由于其耐火性质而不自然而然。 所披露的由过渡金属碳化物材料制成的电子源在安装在需要高亮度,远光束电流源的先进成像应用的扫描电子显微镜(SEM)中是特别有用的。

    TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT
    4.
    发明申请
    TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT 审中-公开
    TUNGSTEN WIRE,CATHODE HEATER和VIBRATION SERVICE LAMP FILAMENT

    公开(公告)号:US20100084055A1

    公开(公告)日:2010-04-08

    申请号:US12632348

    申请日:2009-12-07

    IPC分类号: C22F1/18 B22F1/00

    摘要: A tungsten wire containing 1 to 10% by mass of rhenium has a point which indicates a 2% elongation within a quadrangle formed by joining points with straight lines, where the values of x and y are point (20, 75), point (20, 87), point (90, 75), and point (90, 58), in this order, wherein the wire diameter of the aforementioned tungsten wire is represented by x μm, and the elongation of the tungsten wire is 2% after electrically heating with an electrical current which is a ratio of y % to the fusion current (FC) at the wire diameter x μm, and wherein a semi-logarithmic system of coordinates is expressed by a horizontal axis using a logarithmic scale of the aforementioned wire diameter x and a vertical axis using a normal scale of ratio y to the fusion current. According to the above-described configuration, a tungsten wire having a great elongation even under conditions of high temperature can be provided, and the tungsten wire can exhibit an excellent durability when used as component material for constituting cathode heaters and so forth, and the tungsten wire can be manufactured efficiently.

    摘要翻译: 含有1〜10质量%铼的钨丝具有表示在通过连接点与直线形成的四边形内的2%伸长率的点,其中x和y的值为点(20,75),点(20 ,87),点(90,75)和点(90,58),其中上述钨丝的线直径由x m表示,并且在电气上钨丝的伸长率为2% 利用电线直径x m处的y%与熔融电流(FC)的比例的电流进行加热,并且其中使用上述线径的对数刻度以水平轴表示坐标的半对数坐标系 x和垂直轴,使用与融合电流的比率y的正常刻度。 根据上述结构,能够提供即使在高温条件下具有大的伸长率的钨丝,并且当用作构成阴极加热器等的组分材料时,钨丝可以表现出优异的耐久性,钨 电线可以有效地制造。

    Thermal-field type electron source composed of transition metal carbide material
    5.
    发明授权
    Thermal-field type electron source composed of transition metal carbide material 有权
    由过渡金属碳化物材料组成的热场型电子源

    公开(公告)号:US09490098B1

    公开(公告)日:2016-11-08

    申请号:US14992870

    申请日:2016-01-11

    摘要: An electron source is made from mixed-metal carbide materials of high refractory nature. Producing field-enhanced thermionic emission, i.e., thermal-field or extended Schottky emission, from these materials entails the use of a certain low work function crystallographic direction, such as, for example, (100), (210), and (310). These materials do not naturally facet because of their refractory nature. The disclosed electron source made from transition metal carbide material is especially useful when installed in a scanning electron microscope (SEM) performing advanced imaging applications that require a high brightness, high beam current source.

    摘要翻译: 电子源由具有高耐火性质的混合金属碳化物材料制成。 从这些材料产生场强增强的热离子发射,即热场或延伸的肖特基发射需要使用某种低功函数的晶体学方向,例如(100),(210)和(310) 。 这些材料由于其耐火性质而不自然而然。 所披露的由过渡金属碳化物材料制成的电子源在安装在需要高亮度,远光束电流源的先进成像应用的扫描电子显微镜(SEM)中是特别有用的。