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231 条记录 (耗时 0.026 秒)

    Lead-free low melting solder with improved mechanical properties
    71.
    发明授权
    Lead-free low melting solder with improved mechanical properties 失效
    无铅低熔点焊料具有改善的机械性能

    公开(公告)号：US5569433A

    公开(公告)日：1996-10-29

    申请号：US335619

    申请日：1994-11-08

    申请人： Ho S. Chen ,  Sungho Jin ,  Mark T. McCormack

    发明人： Ho S. Chen ,  Sungho Jin ,  Mark T. McCormack

    IPC分类号： B23K35/26 ,  C22C13/02 ,  C22C13/00 ,  C22C12/00

    CPC分类号： C22C13/02 ,  B23K35/264

    摘要： We have made the surprising discovery that small amounts of Ag below 1% by weight are effective in making Bi--Sn alloys less strain-rate sensitive without deleteriously affecting the melting character of the alloy. A Pb-free solder composition comprising at least 40% by weight Bi, between 40% and 60% Sn, and between 0.05 and 1% Ag is effective to increase the total elongation of the solder by at least 20% under the same processing conditions. Moreover the solder is free of undesirable Ag-containing phases with a melting point in excess of the 183.degree. C. melting point of the Pb--Sn binary eutectic alloy. In a preferred embodiment, the composition comprises 54.75% Bi, 45% Sn, and 0.25 % Ag.

    摘要翻译： 我们惊奇地发现，低于1重量％的少量Ag对于使Bi-Sn合金的应变率敏感性降低是有效的，而不会有害地影响合金的熔融特性。 包含至少40重量％Bi，40％至60％Sn和0.05至1％Ag之间的无铅焊料组合物在相同加工条件下将焊料的总伸长率提高至少20％是有效的 。 此外，焊料没有不希望的含Ag相，熔点超过Pb-Sn二元共晶合金的183℃熔点。 在优选的实施方案中，组合物包含54.75％Bi，45％Sn和0.25％Ag。

    Voltage proportional replication device using magnetoresistive sensing elements
    72.
    发明授权
    Voltage proportional replication device using magnetoresistive sensing elements 失效
    使用磁阻感测元件的电压比例复制器件

    公开(公告)号：US5512818A

    公开(公告)日：1996-04-30

    申请号：US220768

    申请日：1994-03-31

    申请人： Sungho Jin ,  Ashraf W. Lotfi ,  Mark T. McCormack

    发明人： Sungho Jin ,  Ashraf W. Lotfi ,  Mark T. McCormack

    IPC分类号： G01R33/09 ,  G01R15/20 ,  G01R17/16 ,  G01R19/00 ,  G05F1/10 ,  H01F10/18 ,  G01V3/06

    CPC分类号： G01R15/205

    摘要： In accordance with the present invention, a voltage proportional replication device comprises an input electromagnet responsive to an input voltage for producing a magnetic field in proportion to the input voltage; and a first magnetoresistive sensing element disposed within the field of the input electromagnet. The device further includes an adjustable source of output voltage; an output electromagnet responsive to the output voltage for producing a magnetic field in proportion to the output voltage; and a second magnetoresistive sensing element disposed within the field of the output electromagnet. A control circuit for controlling the adjustable output voltage maintains a constant ratio between the resistances of the first and second magnetoresistive elements, thereby maintaining a constant ratio between the input voltage and the output voltage.

    摘要翻译： 根据本发明，电压比例复制装置包括响应于输入电压的输入电磁体，用于产生与输入电压成比例的磁场; 以及设置在输入电磁体的场内的第一磁阻感测元件。 该装置还包括可调节的输出电压源; 响应于输出电压的输出电磁体，用于产生与输出电压成比例的磁场; 以及设置在输出电磁体的场内的第二磁阻感测元件。 用于控制可调输出电压的控制电路在第一和第二磁阻元件的电阻之间保持恒定的比例，从而保持输入电压和输出电压之间的恒定比率。

    Article comprising magnetoresistive oxide of La, Ca, Mn additionally containing either of both of Sr and Ba
    73.
    发明授权
    Article comprising magnetoresistive oxide of La, Ca, Mn additionally containing either of both of Sr and Ba 失效
    包含另外含有Sr和Ba两者之一的La，Ca，Mn的磁阻氧化物的文章

    公开(公告)号：US5411814A

    公开(公告)日：1995-05-02

    申请号：US187668

    申请日：1994-01-26

    申请人： Sungho Jin ,  Mark T. McCormack ,  Thomas H. Tiefel

    发明人： Sungho Jin ,  Mark T. McCormack ,  Thomas H. Tiefel

    IPC分类号： G01D5/14 ,  G01D5/16 ,  G01R33/09 ,  G06F3/033 ,  G06F3/046 ,  G11B5/39 ,  H01F1/00 ,  H01F1/40 ,  H01L43/08 ,  H01L43/10 ,  B32B9/00 ,  G01R33/02

    CPC分类号： G06F3/046 ,  B82Y25/00 ,  G01D5/145 ,  G01R33/09 ,  H01F1/0036 ,  H01F1/407 ,  H01L43/10 ,  Y10S428/90 ,  Y10T428/1107

    摘要： We have discovered that the addition of a relatively small amount of Sr and/or Ba to La-Ca-Mn-O can yield material of improved magnetoresistive properties at room temperature and in a small applied field, as compared to the analogous Sr and/or Ba-free material. An exemplary composition is La.sub.0.55 Ca.sub.0.25 Sr.sub.0.08 MnO.sub.x. Material according to the invention has a substantially larger value of .vertline.d.rho./dH.vertline. than the analogous comparison material at 25.degree. C. and H.ltoreq.0.05 Tesla. Preferred compositions also can exhibit a substantially linear dependence of resistivity on applied magnetic field under these conditions, as well as have a relatively large value of zero field resistivity. The novel materials can advantageously be used in applications that involve sensing of a magnetic field, or of changes in such a field.

    摘要翻译： 我们已经发现，与类似的Sr和/或Ca相比，在La-Ca-Mn-O中添加相对少量的Sr和/或Ba可以产生在室温和小的施加场中改进的磁阻性质的材料， 或不含Ba的材料。 示例性组合物是La0.55Ca0.25Sr0.08MnOx。 根据本发明的材料具有显着更大的值| d rho / dH | 在25℃和H <0.05特斯拉的类似比较材料。 优选的组合物还可以在这些条件下表现出对所施加的磁场的电阻率的基本上线性的依赖性，并且具有相对较大的零场电阻率值。 该新型材料可以有利地用于涉及感测磁场或这种场的变化的应用中。

    Apparatus and systems comprising a clad superconductive oxide body, and method for producing such body
    76.
    发明授权
    Apparatus and systems comprising a clad superconductive oxide body, and method for producing such body 失效
    包括超导氧化物体的装置和系统以及用于制造这种体的方法

    公开(公告)号：US4952554A

    公开(公告)日：1990-08-28

    申请号：US36160

    申请日：1987-04-06

    申请人： Sungho Jin ,  Richard C. Sherwood ,  Robert B. van Dover

    发明人： Sungho Jin ,  Richard C. Sherwood ,  Robert B. van Dover

    IPC分类号： C04B35/00 ,  C01G1/00 ,  C04B35/45 ,  H01B12/04 ,  H01B13/00 ,  H01L39/14 ,  H01L39/24

    CPC分类号： C04B35/45 ,  H01L39/143 ,  H01L39/248 ,  Y10S505/704 ,  Y10S505/74 ,  Y10T29/49014 ,  Y10T428/2938 ,  Y10T428/2944 ,  Y10T428/2958

    摘要： A method of producing normal-metal-clad superconductive oxide wire, tape and the like is disclosed. The method comprises forming an intermediate body by surrounding a quantity of the oxide powder (e.g., Ba.sub.2 YCu.sub.3 O.sub.6.9) with an appropriate normal metal jacket, reducing the cross section of the intermediate body by any appropriate technique (e.g., drawing or rolling), and heat treating the elongated body such that substantial sintering of the powder results, and such that, after completion of the heat treatment, the sintered oxide has a composition that is associated with superconductivity in unclad bulk samples of the oxide. The latter condition requires that at least the portion of the cladding that is in contact with the oxide powder is substantially inert with respect to oxygen and the oxide under the conditions of the heat treatment. Silver is the currently preferred inert normal metal. Exemplarily, Ag can be used to provide a diffusion barrier with other normal metal (e.g., Ni and Cu) surrounding the diffusion barrier, or the cladding can consist substantially of Ag. Various techniques for preventing oxygen loss and/or restoring lost oxygen from the powder are disclosed. Advantageously the elongated body is appropriately shaped (e.g., wound into a helical coil) prior to the heat treatment. Elongate bodies produced according to the invention can advantageously be used as superconductive magnets, and in a variety of other apparatus and systems.

    PRODUCTS OF MANUFACTURE HAVING TANTALUM COATED NANOSTRUCTURES, AND METHODS OF MAKING AND USING THEM
    78.
    发明申请
    PRODUCTS OF MANUFACTURE HAVING TANTALUM COATED NANOSTRUCTURES, AND METHODS OF MAKING AND USING THEM 审中-公开
    具有TANTALUM涂层纳米结构的制造产品及其制造和使用方法

    公开(公告)号：US20140086962A1

    公开(公告)日：2014-03-27

    申请号：US13814896

    申请日：2013-02-07

    申请人： Sungho Jin ,  Christine Frandsen

    发明人： Sungho Jin ,  Christine Frandsen

    IPC分类号： A61L27/30 ,  A61L27/38 ,  A61F2/30

    CPC分类号： A61L27/306 ,  A61F2/30767 ,  A61F2002/3084 ,  A61L27/047 ,  A61L27/38 ,  A61L31/022 ,  A61L31/088 ,  A61L2400/12 ,  A61L2430/02 ,  A61L2430/24 ,  A61L2430/38 ,  B22F1/0025 ,  B22F1/025 ,  B82Y30/00 ,  C12M25/00 ,  Y10T428/12028 ,  Y10T428/24893 ,  Y10T428/24909 ,  Y10T428/25 ,  Y10T428/26 ,  Y10T428/31678

    摘要： In alternative embodiments, the invention provides products (articles) of manufacture comprising nanostructures such as nanotubes having a surface comprising tantalum. In alternative embodiments, products of manufacture of the invention include nanostructures, e.g., nanotubes, nanowire, nanopore, and the like comprising a surface layer of tantalum. In alternative embodiments, products or articles of manufacture of the invention are bioimplants, and the tantalum-surface-coated nanostructures of the invention provide increased bioactivity and bone forming ability. In alternative embodiments, products or articles of manufacture of the invention, e.g., bioimplants, comprising the tantalum-surface-coated nanostructures of the invention are used for in vitro, ex vivo and in vivo testing, implants, biomedical devices and therapeutics.

    摘要翻译： 在替代实施例中，本发明提供包括纳米结构的制品（制品），例如具有包括钽的表面的纳米管。 在替代实施方案中，本发明的制造产品包括纳米结构，例如包含钽表面层的纳米管，纳米线，纳米孔等。 在替代实施方案中，本发明的产品或制品是生物植入物，并且本发明的钽表面包被的纳米结构提供增加的生物活性和骨形成能力。 在替代实施方案中，本发明的产品或制品，例如包含本发明的钽表面包被的纳米结构的生物复合材料用于体外，离体和体内测试，植入物，生物医学装置和治疗剂。

    SUPERHYDROPHOBIC AND SUPEROLEOPHOBIC NANOSURFACES
    79.
    发明申请
    SUPERHYDROPHOBIC AND SUPEROLEOPHOBIC NANOSURFACES 有权
    超级离子和超疏水纳米微粒

    公开(公告)号：US20140011013A1

    公开(公告)日：2014-01-09

    申请号：US13996477

    申请日：2011-12-20

    申请人： Sungho Jin ,  Chulmin Choi

    发明人： Sungho Jin ,  Chulmin Choi

    IPC分类号： B32B7/02 ,  B05D5/00 ,  H01L31/0236

    CPC分类号： B32B7/02 ,  A01N25/34 ,  B05D5/00 ,  B05D5/08 ,  B05D5/083 ,  B81B2203/0361 ,  B81B2207/11 ,  B81C1/00111 ,  B81C1/00206 ,  B81C1/00404 ,  B81C1/00428 ,  B81C1/00531 ,  B82B3/0038 ,  B82Y40/00 ,  G03F7/0002 ,  H01L21/3065 ,  H01L21/3086 ,  H01L31/0236 ,  H01L31/02366 ,  Y02E10/50 ,  Y10T428/249924 ,  Y10T428/24994

    摘要： Devices, systems and techniques are described for producing and implementing articles and materials having nano-scale and microscale structures that exhibit superhydrophobic, superoleophobic or omniphobic surface properties and other enhanced properties. In one aspect, a surface nanostructure can be formed by adding a silicon-containing buffer layer such as silicon, silicon oxide or silicon nitride layer, followed by metal film deposition and heating to convert the metal film into balled-up, discrete islands to form an etch mask. The buffer layer can be etched using the etch mask to create an array of pillar structures underneath the etch mask, in which the pillar structures have a shape that includes cylinders, negatively tapered rods, or cones and are vertically aligned. In another aspect, a method of fabricating microscale or nanoscale polymer or metal structures on a substrate is made by photolithography and/or nano imprinting lithography.

    摘要翻译： 描述了用于生产和实施具有纳米尺度和微观结构的物品和材料的装置，系统和技术，其具有超疏水，超疏油或无所不在的表面性质和其它增强性能。 在一个方面，可以通过加入硅，氧化硅或氮化硅层等含硅缓冲层，然后进行金属膜沉积和加热来形成表面纳米结构，将金属膜转变成球状的离散的岛以形成 蚀刻掩模 可以使用蚀刻掩模蚀刻缓冲层，以在蚀刻掩模下方形成柱状结构的阵列，其中柱状结构具有包括圆柱体，负圆锥形棒或锥体并且垂直对准的形状。 在另一方面，通过光刻和/或纳米压印光刻法制造在衬底上制造微米级或纳米级聚合物或金属结构的方法。