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公开(公告)号：US5761017A
公开(公告)日：1998-06-02
申请号：US490943
申请日：1995-06-15
摘要： A high temperature superconductor fault current limiter and a method of using same. The fault current limiter comprises a high temperature superconductor material structure at least partially encapsulated in an epoxy having thermal conductivity properties that enable the superconductor to heat rapidly during a fault condition while preventing thermal runaway. The epoxy encapsulation decreases the critical current density of the superconductor material structure and increases the rate at which resistance increases with increasing current once the critical current density is exceeded. Preferably, the epoxy has thermal expansion properties approximately equal to the thermal expansion properties of the superconductor material structure.
摘要翻译： 高温超导体故障限流器及其使用方法。 故障限流器包括至少部分地封装在具有导热性能的环氧树脂中的高温超导体材料结构，其能够使超导体在故障状态期间快速加热，同时防止热失控。 环氧树脂封装降低了超导材料结构的临界电流密度，并且一旦超过临界电流密度，电流随电流增加而增加。 优选地，环氧树脂的热膨胀性能近似等于超导体材料结构的热膨胀性能。
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公开(公告)号：US5393736A
公开(公告)日：1995-02-28
申请号：US984060
申请日：1992-11-30
CPC分类号： G01F23/246 , G01F23/24 , Y10S505/842
摘要： A cryogenic fluid level sensor utilizing a high temperature ceramic superconductor material driven above its level of critical current density, an exterior housing for holding the length of ceramic superconductor material, a support material disposed between the ceramic superconductor material and the exterior housing, and a resilient retention material disposed opposite the ceramic superconductor material for holding the superconductor material while allowing expansion and contraction thereof during thermal cycling. A method of producing a superconductor material having a low level of critical current density and favorable structural properties is also disclosed.
摘要翻译： 利用高于其临界电流密度水平的高温陶瓷超导体材料的低温液位传感器，用于保持陶瓷超导体材料的长度的外壳，设置在陶瓷超导体材料和外壳之间的支撑材料，以及弹性 保持材料与陶瓷超导体材料相对设置，用于保持超导体材料，同时允许在热循环期间的膨胀和收缩。 还公开了一种具有低临界电流密度和良好结构特性的超导体材料的制造方法。
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公开(公告)号：US5744945A
公开(公告)日：1998-04-28
申请号：US336275
申请日：1994-11-08
CPC分类号： G01F23/246 , G01F23/24 , Y10S505/842
摘要： A method of measuring a cryogenic fluid level utilizing a high temperature ceramic superconductor material driven above its level of critical current density. A high temperature ceramic superconductor is placed in cryogenic fluid and a voltage is applied between two points on the superconductor. The voltage drop is then measured at a third point on the superconductor. This voltage drop corresponds to the change in cryogenic fluid level, and thus can be used to measure the fluid level. Sensitivity of the measurement is increased by driving the high temperature ceramic superconductor above its level of critical current density.
摘要翻译： 使用高于其临界电流密度水平的高温陶瓷超导材料来测量低温液位的方法。 将高温陶瓷超导体放置在低温流体中，并在超导体上的两个点之间施加电压。 然后在超导体上的第三点测量电压降。 该电压降对应于低温液位的变化，因此可用于测量液位。 通过将高温陶瓷超导体驱动到其临界电流密度水平之上来提高测量的灵敏度。
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4.发明授权
公开(公告)号：US5527765A
公开(公告)日：1996-06-18
申请号：US294486
申请日：1994-08-23
申请人： James D. Hodge , Lori J. Klemptner
发明人： James D. Hodge , Lori J. Klemptner
IPC分类号： C01G1/00 , C01G3/00 , C04B35/45 , C04B35/64 , C23C30/00 , C30B29/22 , H01B12/06 , H01B13/00 , H01L39/02 , H01L39/24 , H01L39/12 , B32B9/00
CPC分类号： H01L39/2451 , C04B35/4508 , C04B35/64 , H01L39/2419 , Y10S428/93 , Y10S505/742 , Y10S505/776 , Y10S505/78
摘要： A high temperature superconductor and composite structure. A superconductor is disposed on a silver substrate without interdiffusion. The superconductor is formed by heating to a temperature not exceeding the peritectic point of the superconductor material, providing an oxidizing atmosphere while not exceeding the melting point of silver and disposing the superconductor on the silver substrate.
摘要翻译： 高温超导体和复合结构。 将超导体设置在银基板上，而不会相互扩散。 超导体通过加热至不超过超导体材料的包晶点的温度而形成，提供氧化气氛，同时不超过银的熔点并将超导体设置在银基板上。
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公开(公告)号：US5340797A
公开(公告)日：1994-08-23
申请号：US10932
申请日：1993-01-29
申请人： James D. Hodge , Lori J. Klemptner
发明人： James D. Hodge , Lori J. Klemptner
IPC分类号： C01G1/00 , C01G3/00 , C04B35/45 , C04B35/64 , C23C30/00 , C30B29/22 , H01B12/06 , H01B13/00 , H01L39/02 , H01L39/24 , H01L39/00
CPC分类号： H01L39/2451 , C04B35/4508 , C04B35/64 , H01L39/2419 , Y10S428/93 , Y10S505/742 , Y10S505/776 , Y10S505/78
摘要： A method of preparing a superconductor. The method includes preparing a mixture of superconductor material constituents, disposing the constituents on a silver containing substrate, heating the mixture of constituents on a silver containing substrate, heating the mixture in a first atmosphere having a partial pressure of CO.sub.2 to control decomposition of at least one of the superconductor material constituents and changing the first atmosphere to a second atmosphere consisting essentially of an oxidizing gas capable of allowing decomposition of at least one of the superconductor material constituents.
摘要翻译： 一种制备超导体的方法。 该方法包括制备超导体材料组分的混合物，将组分设置在含银衬底上，在含银衬底上加热组分的混合物，在具有二氧化碳分压的第一气氛中加热该混合物以控制至少 超导体材料成分之一，并将第一气氛改变为基本上由能够允许至少一种超导体材料成分分解的氧化气体组成的第二气氛。
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公开(公告)号：US5055436A
公开(公告)日：1991-10-08
申请号：US234441
申请日：1988-08-19
CPC分类号： H01L39/2419 , C01G15/006 , C01G29/006 , C01G3/00 , C01G3/006 , C04B35/4504 , C04B35/4512 , C04B35/4521 , C01P2002/54 , C01P2002/72 , C01P2004/03 , Y10S505/733 , Y10S505/737 , Y10S505/739
摘要： An improved process for preparing superconducting ceramic powder includes calcining superconducting precursor compounds in an atmosphere having a controlled amount of oxygen, generally not more than that found in air, the remainder of the atmosphere composed of a gas or mixture of gases inert with respect to the ceramic. A preferred process includes forming the precursor compounds into a slurry, granulating the slurry, drying the granules (a binder can be added to the slurry to promote green strength), and calcining in the controlled atmosphere to provide the desired HTSC (high temperature superconductor) composition.
摘要翻译： 制备超导陶瓷粉末的改进方法包括在具有受控量的氧气的气氛中煅烧超导前体化合物，通常不大于在空气中发现的氧化物，剩余的气体或气体混合气体相对于 陶瓷。 优选的方法包括将前体化合物形成浆料，造浆，干燥颗粒（可将粘合剂加入浆料以促进生坯强度），并在受控气氛中煅烧以提供所需的HTSC（高温超导体） 组成。
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