Method of making ferroelectric-ferromagnetic composite materials
    2.
    发明授权
    Method of making ferroelectric-ferromagnetic composite materials 失效
    制备铁电 - 铁磁复合材料的方法

    公开(公告)号:US5601748A

    公开(公告)日:1997-02-11

    申请号:US626088

    申请日:1996-04-01

    CPC分类号: C04B35/47 C04B35/468

    摘要: Barium-strontium titanate ferroelectric materials and AFe.sub.2 O.sub.4 -type ferrite ferromagnetic materials may be consolidated into a ferroelectric-ferromagnetic composite having useful electromagnetic interference attenuation properties over a wide range of electromagnetic frequencies by fluxing the barium-strontium titanate with a combination of (1) a lithium compound and barium oxide or (2) copper oxide and barium oxide and thereafter mixing the fluxed ferroelectric with the ferromagnetic and sintering the combination at reduced temperature in the range of 1060.degree. C. to 1150.degree. C.

    摘要翻译: 钡钛酸锶铁电材料和AFe 2 O 4型铁氧体铁磁材料可以通过以下方式组合使用钛酸锶钛酸锶而将其固化成铁电铁磁性复合材料,该复合材料在广泛的电磁频率范围内具有有用的电磁干扰衰减特性:(1) 锂化合物和氧化钡或(2)氧化铜和氧化钡,然后将熔融的铁电体与铁磁体混合,并在1060℃至1150℃的温度范围内烧结组合。

    Method of decalcifying rare earth metals formed by the
reduction-diffusion process
    3.
    发明授权
    Method of decalcifying rare earth metals formed by the reduction-diffusion process 失效
    通过还原扩散法形成的稀土金属脱钙的方法

    公开(公告)号:US5057148A

    公开(公告)日:1991-10-15

    申请号:US565080

    申请日:1990-08-09

    摘要: Mixtures of a rare earth and an intermetallic compound comprising the rare earth and a ferromagnetic metal selected from the group consisting of iron and cobalt which are formed by the reduction-diffusion process are decalcified by reacting the product of the reduction-diffusion reaction with neodecanoic acid and dissolving the calcium neodecanoate formed thereby in an organic solvent to remove it from the metallic components of the reaction product.

    摘要翻译: 通过还原扩散工艺形成的稀土和金属间化合物的混合物,其通过还原扩散反应产物与新癸酸反应脱钙,所述稀土和金属间化合物包含稀土和选自由还原扩散法形成的组中的铁磁性金属 并将由此形成的新癸酸钙溶于有机溶剂中以将其从反应产物的金属组分中除去。

    Integrated thermally compensated liquid crystal display device
    4.
    发明授权
    Integrated thermally compensated liquid crystal display device 失效
    集成热补偿液晶显示装置

    公开(公告)号:US4029393A

    公开(公告)日:1977-06-14

    申请号:US681472

    申请日:1976-04-29

    IPC分类号: G02F1/133 G02F1/1333 G02F1/13

    CPC分类号: G02F1/133382 G02F1/133345

    摘要: A reflective mode liquid crystal cell having an integral self-actuating heater for maintaining a liquid crystal material in the cell above a temperature at which it solidifies. In this cell, the liquid crystal material is disposed between a transparent member, and a member having a nontransparent barium titanate portion. The barium titanate positive temperature coefficient of electrical resistance has a preselected Curie temperature above the temperature at which the liquid crystal material solidifies. A single power source can be used for electro-optic display, and heat generated by current flow through the barium titanate.

    摘要翻译: 一种反射型液晶单元,其具有用于将电池中的液晶材料保持在其固化温度以上的整体自动致动加热器。 在该电池中,液晶材料设置在透明构件和具有不透明的钛酸钡部分的构件之间。 钛酸钡的正电温度系数具有高于液晶材料固化温度的预定居里温度。 单个电源可用于电光显示,并且电流通过钛酸钡产生的热量。

    Ferroelectric-ferromagnetic composite materials
    5.
    发明授权
    Ferroelectric-ferromagnetic composite materials 失效
    铁电铁磁复合材料

    公开(公告)号:US5512196A

    公开(公告)日:1996-04-30

    申请号:US265899

    申请日:1994-06-27

    CPC分类号: H03H1/0007 H01R13/7197

    摘要: A material which possesses both capacitive and inductive properties for suppressing electromagnetic interference is provided, wherein the material is a composite of a ferroelectric material and a ferromagnetic material. The ferroelectric-ferromagnetic composite material is formulated and processed so as to retain the distinct electrical properties of the individual constituents according to the relative quantities of the constituents present in the ferroelectric-ferromagnetic composite material. As a unitary composite element, the ferroelectric-ferromagnetic composite is readily formable to provide a compact electrical filter whose filtering capability is highly suitable for suppressing electromagnetic interference from sources internal and external to an automotive environment. The sintered composite has a very low porosity; interconnectivity between the ferroelectric and ferromagnetic phases; and has no chemical reaction between the ferroelectric and ferromagnetic phases to produce a third phase.

    摘要翻译: 提供了具有用于抑制电磁干扰的电容和电感特性的材料,其中该材料是铁电材料和铁磁材料的复合材料。 铁电 - 铁磁复合材料被配制和加工,以便根据存在于铁电 - 铁磁复合材料中的组分的相对量来保持各个组分的不同电性能。 作为单体复合元件,铁电 - 铁磁性复合材料易于形成,以提供紧凑的滤波器,其滤波能力非常适合于抑制来自汽车环境内部和外部的源的电磁干扰。 烧结复合材料具有非常低的孔隙率; 铁电相和铁磁相之间的互连; 并且在铁电和铁磁相之间没有化学反应以产生第三相。

    Filter elements having ferroelectric-ferromagnetic composite materials
    6.
    发明授权
    Filter elements having ferroelectric-ferromagnetic composite materials 失效
    具有铁电 - 铁磁性复合材料的滤芯

    公开(公告)号:US5497129A

    公开(公告)日:1996-03-05

    申请号:US265897

    申请日:1994-06-27

    IPC分类号: H01R13/7195 H03H7/00

    CPC分类号: H01R13/7195

    摘要: A material which possesses both capacitive and inductive properties for suppressing electromagnetic interference is provided, wherein the material is a composite of a ferroelectric material and a ferromagnetic material. The ferroelectric-ferromagnetic composite material is formulated and processed so as to retain the distinct electrical properties of the individual constituents according to the relative quantities of the constituents present in the ferroelectric-ferromagnetic composite material. As a unitary composite element, the ferroelectric-ferromagnetic composite is readily formable to provide a compact electrical filter whose filtering capability is highly suitable for suppressing electromagnetic interference from sources internal and external to an automotive environment. The sintered composite has a very low porosity; interconnectivity between the ferroelectric and ferromagnetic phases; and has no chemical reaction between the ferroelectric and ferromagnetic phases to produce a third phase.

    摘要翻译: 提供了具有用于抑制电磁干扰的电容和电感特性的材料,其中该材料是铁电材料和铁磁材料的复合材料。 铁电 - 铁磁复合材料被配制和加工,以便根据存在于铁电 - 铁磁复合材料中的组分的相对量来保持各个组分的不同电性能。 作为单体复合元件,铁电 - 铁磁性复合材料易于形成,以提供紧凑的滤波器,其滤波能力非常适合于抑制来自汽车环境内部和外部的源的电磁干扰。 烧结复合材料具有非常低的孔隙率; 铁电相和铁磁相之间的互连; 并且在铁电和铁磁相之间没有化学反应以产生第三相。

    Thermoelectric exhaust gas sensor
    8.
    发明授权
    Thermoelectric exhaust gas sensor 失效
    热电废气传感器

    公开(公告)号:US4029472A

    公开(公告)日:1977-06-14

    申请号:US673649

    申请日:1976-04-05

    摘要: An extremely high output and durable thermoelectric sensor for detecting the quantitative content of combustibles in an exhaust gas. Thick film coatings of lithia-nickel and doped titanium dioxide provide two thermocouple junctions on a ceramic substrate. An exhaust gas oxidation catalyst adjacent one of the junctions provides a junction temperature differential when the ceramic body is exposed to exhaust gas flow. The output difference between the two junctions is proportional to the concentration of residual combustibles in the exhaust gas.

    摘要翻译: 用于检测废气中可燃物的定量含量的极高输出和耐用的热电传感器。 锂 - 镍和掺杂二氧化钛的厚膜涂层在陶瓷基板上提供两个热电偶结。 邻近其中一个结的废气氧化催化剂在陶瓷体暴露于废气流时提供结温差。 两个结之间的输出差异与废气中残留的可燃物的浓度成比例。

    Systems and methods for determining a temperature of a ferroelectric sensor
    9.
    发明授权
    Systems and methods for determining a temperature of a ferroelectric sensor 有权
    用于确定铁电传感器的温度的系统和方法

    公开(公告)号:US07553077B2

    公开(公告)日:2009-06-30

    申请号:US11761110

    申请日:2007-06-11

    IPC分类号: G01K7/36

    摘要: Systems and methods for determining a temperature of a ferroelectric sensor are provided. The ferroelectric sensor has operational characteristics defined by a polarization versus voltage hysteresis loop. In one exemplary embodiment, the method includes applying a symmetrical periodic voltage waveform to the ferroelectric sensor so as to induce the ferroelectric sensor to traverse the polarization versus voltage hysteresis loop. The method further includes monitoring voltages across the ferroelectric sensor and polarization states of the ferroelectric sensor over a first time interval to determine a first zero field polarization state and a first coercive field voltage. The method further includes determining a first temperature value indicative of the temperature of the ferroelectric sensor based on the first coercive field voltage.

    摘要翻译: 提供了用于确定铁电传感器的温度的系统和方法。 铁电传感器具有由极化对电压滞后回路定义的操作特性。 在一个示例性实施例中,该方法包括向铁电传感器施加对称的周期性电压波形,以便诱导铁电传感器穿过偏振相对电压磁滞回线。 该方法还包括在第一时间间隔内监测铁电传感器两端的电压和铁电传感器的极化状态,以确定第一零场极化状态和第一矫顽场电压。 该方法还包括基于第一矫顽场电压来确定指示铁电传感器的温度的第一温度值。

    Method for forming tungsten oxide films
    10.
    发明授权
    Method for forming tungsten oxide films 失效
    形成氧化钨膜的方法

    公开(公告)号:US5034246A

    公开(公告)日:1991-07-23

    申请号:US568293

    申请日:1990-08-15

    IPC分类号: C01G41/02 C07F11/00 C23C18/12

    摘要: A method is disclosed for forming a tungsten oxide film on a substrate by applying an alkyl amine tungstate compound thereon and removing at least a portion of the alkyl amine tungstate compound to form a tungsten oxide film.In a preferred embodiment, a solution of alkyl amine tungstate compound is formed in a solvent to uniformly apply the alkyl amine tungstate compound; the solvent is removed by evaporation thereby forming a deposit; the deposit is heated for a time and at a temperature sufficient to at least partially pyrolyze the alkyl amine tungstate compound.The alkyl amine tungstate compound desirably may be selected from the group consisting of bis (di-n-octylammonium) tetratungstate, and di (n-octadecylammonium) tetratungstate. Preferably, bis (di-n-octylammonium) tetratungstate is used.The invention also provides tungsten oxide films which include suboxides of tungsten oxides (WO.sub.3); which have an average ratio of oxygen atoms to tungsten atoms equal to or less than 3:1; which are denser than films produced from currently known MOD precursor compounds; which have a color gradient, that is, regions of different color; and wherein the regions of color are electrochromic.

    摘要翻译: 公开了一种通过在其上涂覆烷基胺钨酸盐化合物在基体上形成氧化钨膜并除去至少一部分烷基胺钨酸盐化合物以形成氧化钨膜的方法。 在优选的实施方案中,在溶剂中形成烷基胺钨酸盐化合物溶液以均匀地施加烷基胺钨酸盐化合物; 通过蒸发除去溶剂,从而形成沉积物; 将沉积物加热足以至少部分地热解烷基胺钨酸盐化合物的温度一段时间。 烷基胺钨酸酯化合物理想地可以选自双(二正辛基铵)四钨酸盐和二(正十八烷基铵)四钨酸盐。 优选使用双(二正辛基铵)四钨酸盐。 本发明还提供了包含氧化钨低氧化物(WO 3)的氧化钨膜; 其具有等于或小于3:1的氧原子与钨原子的平均比例; 其比目前已知的MOD前体化合物产生的膜更致密; 它们具有颜色渐变,即不同颜色的区域; 并且其中所述颜色区域是电致变色的。