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公开(公告)号：US4904897A
公开(公告)日：1990-02-27
申请号：US677948
申请日：1984-12-04
CPC分类号： H01J1/26
摘要： An oxide cathode comprising a base 1 which consists substantially of titanium and a heater element 5 coated with aluminium oxide 6 to heat the base 1, which bears a porous alkaline earth metal oxide emissive layer 4. When the surface of the titanium base 1 which is opposed to the heater element 5 bears a metal layer 7 consisting at least of one of the metals Pt, Mo, Ta and W, a solution is obtained to the problem occurring in titanium cathodes in that titanium in contact with aluminium oxide is not chemically stable. The metal layer preferably consisits of pure tungsten and is formed by chemical vapour desposition (CVD). The metal layer is preferably from 1 to 10 .mu.m thick.
摘要翻译： 一种氧化物阴极，其包括基本上由钛组成的基体1和涂覆有氧化铝6的加热元件5，以加热承载多孔碱土金属氧化物发射层4的基体1.当钛基1的表面 与加热器元件5相对的是具有至少由金属Pt，Mo，Ta和W中的至少一种构成的金属层7，获得了在钛阴极中发生的问题的解决方案是，与氧化铝接触的钛不是化学稳定的 。 金属层优选地是纯钨，并且通过化学气相沉积（CVD）形成。 金属层的厚度优选为1〜10μm。
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公开(公告)号：US4101185A
公开(公告)日：1978-07-18
申请号：US764588
申请日：1977-02-01
CPC分类号： C03B37/042 , C03B37/04 , H01J61/10 , H01J9/395
摘要： A method of producing a low-pressure gas discharge lamp in which a body of a solid material having a thin, structure of filaments permeable to the gas discharge such as glass wool is disposed. Coherence is given to the filaments by compressing them whereafter they are sucked into the lamp envelope. Compressing, knitting together and producing the wire-shaped elements is done in a funnel-shaped space which is connected at its constricted side to the tubular discharge space.
摘要翻译： 一种低压气体放电灯的制造方法，其特征在于，设置具有薄玻璃棉等气体排出物的细长纤维结构的固体物质。 通过压缩它们，然后将它们吸入灯泡中，对长丝进行一致性。 压缩，编织在一起并制造线状元件是在漏斗形空间中进行的，该漏斗形空间在其狭窄侧连接到管状放电空间。
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3.发明授权Method of manufacturing a scandate dispenser cathode and dispenser cathode manufactured by means of the method 失效通过该方法制造钪酸盐分配器阴极和分配器阴极的方法
公开(公告)号：US4594220A
公开(公告)日：1986-06-10
申请号：US685678
申请日：1984-12-24
摘要： A method of manufacturing a scandate dispenser cathode having a matrix at least the top layer of which at the surface consists substantially of tungsten (W) and scandium oxide (Sc.sub.2 O.sub.3) and with emitter material in or below said matrix. If said method comprises the following steps:(a) compressing a porous plug of tungsten powder(b) heating said plug in a non-reactive atmosphere and in contact with scandium to above the melting temperature of scandium,(c) cooling the plug in a hydrogen (H.sub.2) atmosphere(d) pulverizing the plug to fragments(e) heating said fragments to approximately 800.degree. C. and firing them at this temperature for a few to a few tens of minutes in a hydrogen atmosphere and slowly cooling in said hydrogen atmosphere(f) grinding the fragments to scandium hydride-tungsten powder (ScH.sub.2 /W)(g) compressing a matrix or a top layer on a matrix of pure tungsten from said ScH.sub.2 /W powder or from a mixture of this powder with tungsten powder(h) sintering and cooling the said matrix(i) bringing emissive material into the cathode, a scandate dispenser cathode is obtained the recovery of which after ion bombardment occurs better than in cathodes having Sc.sub.2 O.sub.3 grains. The scandium is also distributed more homogeneously in the cathode than in cathodes having Sc.sub.2 O.sub.3 grains.
摘要翻译： 一种制造钪酸盐分配器阴极的方法，其具有基体至少其表面的顶层基本上由钨（W）和氧化钪（Sc 2 O 3）构成的基体和在所述基体内或之下的发射体材料。 如果所述方法包括以下步骤：（a）压缩钨粉的多孔塞（b）将所述塞在非反应性气氛中加热并与钪接触以高于钪的熔融温度，（c）将塞冷却 氢气（H2）气氛（d）将塞子粉碎成碎片（e）将所述碎片加热至约800℃，并在该温度下在氢气气氛中将其烧制几至几十分钟，并在所述 氢气气氛（f）将碎片研磨成氢化钨 - 钨粉（ScH2 / W）（g）从所述ScH2 / W粉末或从该粉末与钨的混合物中压制纯钨基体上的基体或顶层 粉末（h）烧结和冷却所述基质（i）将发射材料引入阴极，得到钪酸盐分配器阴极，其在离子轰击之后的回收比具有Sc 2 O 3晶粒的阴极更好地发生。 钪也在阴极中分布得更均匀，而不是具有Sc2O3晶粒的阴极。
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公开(公告)号：US5261845A
公开(公告)日：1993-11-16
申请号：US738061
申请日：1991-07-30
申请人： Johannes Van Esdonk , Jan Hasker , Josef Van Lith
发明人： Johannes Van Esdonk , Jan Hasker , Josef Van Lith
摘要： A cathode body for an impregnated scandate cathode is obtained by compressing and sintering a mixture of tungsten powder with approximately 0.5% by weight of scandium, whereafter the body is impregnated.
摘要翻译： 浸渍的钪酸盐阴极的阴极体是通过将大约0.5重量％的钪的钨粉混合物压缩并烧结而得到的，之后浸渍体。
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5.发明授权
公开(公告)号：US5064397A
公开(公告)日：1991-11-12
申请号：US482140
申请日：1990-02-16
申请人： Jan Hasker , Jacobus E. Crombeen , Petrus A. M. Van Dorst , Johannes Van Esdonk , Pieter Hokkeling , Josef J. Van Lith
发明人： Jan Hasker , Jacobus E. Crombeen , Petrus A. M. Van Dorst , Johannes Van Esdonk , Pieter Hokkeling , Josef J. Van Lith
摘要： For maintaining a monolayer of scandium which is necessary for a satisfactory emission on the surface of a scandate cathode, at least the top layer of the cathode is provided with scandium coated with a scandium oxide film. Even after repeated ion bombardment the emission is found to recover up to approximately 90% of the initial value at a current density of ca. 100 A/cm.sup.2.
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6.发明授权Method of manufacturing a scandate dispenser cathode and scandate dispenser cathode manufactured according to the method 失效根据该方法制造钪酸盐分配器阴极和钪酸盐分配器阴极的方法
公开(公告)号：US4873052A
公开(公告)日：1989-10-10
申请号：US899788
申请日：1986-08-22
申请人： Jan Hasker , Johannes Van Esdonk , Wim Kwestroo
发明人： Jan Hasker , Johannes Van Esdonk , Wim Kwestroo
CPC分类号： H01J9/047
摘要： A method of manufacturing a scandate dispenser cathode having a matrix (1) at least the top layer of which consists substantially of a mixture of tungsten with scandium oxide or with a mixed oxide comprising scandium oxide. When sintering of the matrix is carried out at a temperature between 1300.degree. and 1700.degree. C., preferably at approximately 1500.degree. C. and in a hydrogen atmosphere, cathodes are obtained having a better recovery after ion bombardment compared with cathodes sintered at 1900.degree. C. Sintering in hydrogen results in a better reproducibility.
摘要翻译： 一种制造钪酸盐分配器阴极的方法，其具有至少其顶层的基体（1）基本上由钨与氧化钪或与包含氧化钪的混合氧化物的混合物组成。 当基体的烧结在1300〜1700℃，优选为约1500℃，在氢气氛中进行时，与1900℃烧结的阴极相比，获得离子轰击后的回收率更好的阴极 在氢气中烧结导致更好的再现性。
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公开(公告)号：US4163169A
公开(公告)日：1979-07-31
申请号：US616653
申请日：1975-09-25
申请人： Jan Hasker
发明人： Jan Hasker
CPC分类号： H01J61/10
摘要： A low-pressure gas discharge lamp in which thin-structured bodies are present in the discharge space for increasing the radiation output per unit volume.
摘要翻译： 一种低压气体放电灯，其中在放电空间中存在薄结构体以增加每单位体积的辐射输出。
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公开(公告)号：US5518520A
公开(公告)日：1996-05-21
申请号：US399304
申请日：1995-03-06
CPC分类号： B22F9/04 , C22C27/04 , B22F2009/041
摘要： Method of manufacturing a dispenser cathode, in which method tungsten and a scandium-containing material are mechanically alloyed and the product thus formed is pressed into a cathode body. The cathode body is further provided with a barium-containing component. In the mechanical alloying process the tungsten is highly deformed and the scandium-containing material is mixed with the tungsten so as to be very finely distributed therein, so that an improved dispensation of scandium and hence an improved recovery after ion bombardment of the final cathode is attained.
摘要翻译： 制造分配器阴极的方法，其中钨和含钪材料机械合金化，并将由此形成的产品压入阴极体。 阴极体还含有含钡成分。 在机械合金化过程中，钨是高度变形的，并且含钪材料与钨混合以便非常精细地分布在其中，从而改善了钪的分配，并因此改善了最终阴极离子轰击后的回收率。 达到了
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公开(公告)号：US4277713A
公开(公告)日：1981-07-07
申请号：US52374
申请日：1979-06-27
CPC分类号： H01J61/10
摘要： Low-pressure discharge lamp having an elongate discharge vessel which contains a thinly distributed filamentary body permeable to the gas discharge, said body comprising a helical support filament which is supported by the inner surface of the discharge vessel and is at least one further filament, supported by the support filament and extending therefrom towards the axis fo the discharge vessel.
摘要翻译： 低压放电灯具有细长的放电容器，其包含可分解气体排出物的薄分布的丝状体，所述主体包括由放电容器的内表面支撑的螺旋支撑细丝，并且至少一个另外的细丝，被支撑 通过支撑丝并从其向朝向放电容器的轴线延伸。
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10.发明授权Low pressure gas discharge lamp having fibers evenly distributed between the electrodes 失效具有均匀分布在电极之间的纤维的低压气体放电灯
公开(公告)号：US4221988A
公开(公告)日：1980-09-09
申请号：US956309
申请日：1978-10-31
CPC分类号： H01J61/10
摘要： A low pressure gas discharge lamp having a body present in the discharge vessel which consists of a longitudinal support which extends into the longitudinal direction of the vessel, the support being provided with fibers which are distributed over the space within the discharge vessel and extend substantially transversely from the support.
摘要翻译： 一种低压气体放电灯，其具有存在于放电容器中的主体，该纵向支撑件延伸到容器的纵向方向，该支撑件设置有分布在放电容器内的空间上并基本上横向延伸的纤维 从支持。
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