Semiconductor pressure transducer
    3.
    发明授权
    Semiconductor pressure transducer 失效
    半导体压力传感器

    公开(公告)号:US4499774A

    公开(公告)日:1985-02-19

    申请号:US284340

    申请日:1981-07-17

    CPC分类号: G01L19/147

    摘要: A semiconductor pressure transducer comprising a piezoresistive semiconductor diaphragm, a cylindrical stem made of a glass having a thermal expansion coefficient approximating that of the diaphragm and hermetically bonded by anodic bonding to the latter, and a cylindrical holder hermetically bonded by anodic bonding to the cylindrical stem is disclosed. The holder is made of a ferromagnetic alloy material containing Fe, Co and Ni and having a mean thermal expansion coefficient of 35.times.10.sup.-7 /.degree.C. or less within the temperature range between 30.degree. C. and 350.degree. C.

    摘要翻译: 一种半导体压力传感器,包括压电半导体膜片,由玻璃制成的圆柱形阀杆,其热膨胀系数接近隔膜的热膨胀系数,并通过阳极接合而密封粘合到隔膜上;以及圆柱形保持器,通过阳极接合气密地接合到圆柱形杆 被披露。 夹持器由含Fe,Co和Ni的铁磁合金材料制成,在30℃至350℃的温度范围内的平均热膨胀系数为35×10 -7 /℃以下。

    Method of producing nickel base alloy structure with NiAl coating
    6.
    发明授权
    Method of producing nickel base alloy structure with NiAl coating 失效
    用NiAl涂层生产镍基合金结构的方法

    公开(公告)号:US4486245A

    公开(公告)日:1984-12-04

    申请号:US258558

    申请日:1981-04-29

    CPC分类号: F01D5/288 C23C10/48 C23C10/60

    摘要: A structure comprising a main body formed of a nickel base alloy, and a NiAl coating applied to the main body, wherein the NiAl coating includes a nickel rich NiAl layer and an aluminum rich NiAl layer and the thickness ratio of the nickel rich NiAl layer to the whole NiAl coating is in a range between 20 and 40%. A method of applying an aluminum coating to a nickel base alloy comprising the steps of forming an aluminide layer of Ni.sub.2 Al.sub.3 on the surface portion of the nickel base alloy by the diffusion and penetration of aluminum, and subjecting the alumide layer to heat treatment to change the aluminide layer to a monoaluminide layer and making the thickness ratio of a nickel rich NiAl layer to the whole monoaluminide layer be in the range between 20 and 40%.

    摘要翻译: 包括由镍基合金形成的主体和施加到主体的NiAl涂层的结构,其中所述NiAl涂层包括富镍的NiAl层和富铝的NiAl层,并且所述富镍的NiAl层的厚度比与 整个NiAl涂层在20至40%的范围内。 一种将铝涂层施加到镍基合金的方法,包括以下步骤:通过铝的扩散和渗透在镍基合金的表面部分上形成Ni2Al3的铝化物层,并对铝硅酸盐层进行热处理以改变 使铝化物层与单卤化物层成膜,并使富镍的NiAl层与整个单铝化物层的厚度比在20至40%的范围内。

    Process for producing cathode for cathode ray tube of directly heating
type
    7.
    发明授权
    Process for producing cathode for cathode ray tube of directly heating type 失效
    直接加热式阴极射线管阴极生产工艺

    公开(公告)号:US4114243A

    公开(公告)日:1978-09-19

    申请号:US775618

    申请日:1977-03-08

    IPC分类号: H01J1/14 H01J9/04

    CPC分类号: H01J9/04

    摘要: In a process for producing a cathode for a cathode ray tube of directly heating type, which comprises shaping a heat-resistant and electro-conductive, flat metal plate, into a cathode substrate body having two leg pieces extended in the same direction and a flat part connected to one end of each leg piece, forming a heat-diffusible metal powder layer having a good affinity to said flat metal plate and on an outer surface of said flat part, heating the powder layer, thereby diffusion bonding the powder layer to the flat part and forming a bonding layer having an uneven surface, to which a thermionic emission layer is to be bonded, and forming the thermionic emission layer on the surface of the bonding layer, the process is characterized by forming on said flat metal plate a metal layer having a good affinity to the flat metal plate, by diffusion bonding, thereby forming a compound plate, and shaping the resulting compound plate into the shape of said cathode substrate body. A cathode having less thermal deformation and a longer life can be produced thereby.Furthermore, the process is characterized by applying a plastic working to the compound plate to a desired thickness and shaping the resulting compound plate into the shape of the cathode substrate body, and a cathode having much less thermal deformation and much longer life can be produced thereby.

    摘要翻译: 在直接加热型阴极射线管用阴极的制造方法中,包括将耐热导电平板状金属板成形为具有沿相同方向延伸的两个支腿的阴极基板主体, 形成与所述平板状金属板和所述平坦部的外表面具有良好亲和性的热扩散性金属粉末层,加热所述粉末层,从而将所述粉末层扩散到 并且形成具有不平坦表面的接合层,热电子发射层将被结合到其上,并且在接合层的表面上形成热离子发射层,其特征在于在所述平坦金属板上形成金属 通过扩散接合对平板状金属板具有良好的亲和性,从而形成复合板,并将得到的化合物板成形为所述阴极基体的形状。 因此可以产生具有较少热变形和较长寿命的阴极。

    Directly heated cathode for electron tube
    8.
    发明授权
    Directly heated cathode for electron tube 失效
    电子管直接加热阴极

    公开(公告)号:US4220891A

    公开(公告)日:1980-09-02

    申请号:US25582

    申请日:1979-03-30

    CPC分类号: H01J1/14

    摘要: A directly heated cathode for electron tube having a stable electron emission characteristic and a low cut-off voltage is provided. The cathode comprises a base metal of an alloy consisting essentially of 20-30% by weight of tungsten and a trace amount to 0.25% by weight of zirconium, the balance being nickel, binder dots of metallic nickel powders distributed on a flat part at the front side of the base metal, and a layer of thermoelectron emission oxides laid on the flat part at the front side of the base metal. The layer of thermoelectron emission oxides is in direct contact with the flat part through clearances among the binder dots of the metallic nickel powders.

    摘要翻译: 提供具有稳定的电子发射特性和低截止电压的用于电子管的直接加热阴极。 阴极包括基本上由20-30重量%的钨组成的合金的基体金属和微量的0.25重量%的锆,余量为镍,分布在平坦部分上的金属镍粉末的粘结点 贱金属的前侧,以及放置在贱金属前侧的平坦部分上的热电子发射氧化物层。 热电子发射氧化物层通过金属镍粉末的粘合剂点之间的间隙与平坦部分直接接触。

    Directly heated cathode for electron tube
    9.
    发明授权
    Directly heated cathode for electron tube 失效
    电子管直接加热阴极

    公开(公告)号:US4310777A

    公开(公告)日:1982-01-12

    申请号:US110920

    申请日:1980-01-10

    IPC分类号: H01J1/14 H01J1/15 H01J1/18

    CPC分类号: H01J1/18

    摘要: A directly heated cathode for an electron tube comprising a base plate made of an alloy containing 20 to 30% by weight of W, 0.12 to 0.28% by weight of Zr and the remainder being Ni and an electron emissive oxide layer disposed directly on the base plate shows good and stable electron emission properties and when it is installed in a television picture tube, the picture tube shows excellent initial properties.

    摘要翻译: 一种用于电子管的直接加热阴极,包括由包含20至30重量%的W,0.12至0.28重量%的Zr和余量为Ni的合金制成的基板和直接设置在基底上的电子发射氧化物层 板显示出良好且稳定的电子发射特性,并且当其安装在电视显像管中时,显像管显示出优异的初始特性。