-
公开(公告)号：US06403511B2
公开(公告)日：2002-06-11
申请号：US09835570
申请日：2001-04-17
IPC分类号： C04B3548
CPC分类号： G02B6/0218 , C04B35/486 , C04B35/495
摘要： Ceramic monoliths are described which exhibit tunable coefficients of thermal expansion from about −5 to −11×10−6° C.−1 near ambient temperatures. These two-phase ceramics, which are fabricated, for example, by reactive sintering of WO3 and ZrO2, consists of a matrix of ZrW2O8 with inclusions of ZrO2 having diameters less than 10 &mgr;m. Additives may increase the density of the monoliths to greater than 98% of the calculated density. Green body densities, pre-sintered particle size distribution, sintering atmosphere, microstructure, and mechanical properties are discussed. These ceramics may be used as substrates for thermally compensating fiber Bragg gratings.
摘要翻译： 描述了陶瓷整料，其在环境温度附近表现出约-5至-11×10 -6℃-1的可调热膨胀系数。 这些由WO 3和ZrO 2的反应烧结制成的两相陶瓷由ZrW 2 O 8基体和直径小于10um的ZrO2夹杂物构成。 添加剂可将整料的密度提高到计算密度的98％以上。 讨论了绿体密度，预烧结粒度分布，烧结气氛，微观结构和力学性能。 这些陶瓷可以用作热补偿光纤布拉格光栅的基板。
-
公开(公告)号：US06716488B2
公开(公告)日：2004-04-06
申请号：US09887938
申请日：2001-06-22
申请人： Debra Anne Fleming , Gideon S. Grader , David Wilfred Johnson, Jr. , John Thomson, Jr. , Robert Bruce Van Dover
发明人： Debra Anne Fleming , Gideon S. Grader , David Wilfred Johnson, Jr. , John Thomson, Jr. , Robert Bruce Van Dover
IPC分类号： H01F100
CPC分类号： H01F41/24 , B82Y30/00 , C03C17/25 , C03C2217/216 , C03C2217/217 , C03C2217/23 , C04B41/009 , C04B41/5036 , C04B41/87 , C04B2111/00422 , C04B41/4543 , C04B41/455 , C04B35/10
摘要： A ferrite layer formation process that may be performed at a lower temperature than conventional ferrite formation processes. The formation process may produce highly anisotropic structures. A ferrite layer is deposited on a substrate while the substrate is exposed to a magnetic field. An intermediate layer may be positioned between the substrate and the ferrite to promote bonding of the ferrite to the substrate. The process may be performed at temperatures less than 300° C. Ferrite film anisotropy may be achieved by embodiments of the invention in the range of about 1000 dyn-cm/cm3 to about 2×106 dyn-cm/cm3.
摘要翻译： 可以在比常规铁素体形成工艺更低的温度下进行的铁素体层形成工艺。 形成过程可能产生高度各向异性的结构。 在衬底暴露于磁场的同时，在衬底上沉积铁素体层。 中间层可以位于基底和铁素体之间，以促进铁素体与基底的结合。 该方法可以在低于300℃的温度下进行。铁氧体膜各向异性可以通过本发明的实施方案在约1000dyncm -1 / cm 3至约2×10 6 dyn-cm / cm 3的范围内实现。 3>。
-
3.发明授权Process for fabricating sol-gel article involving low-shrinkage formulation 有权制造涉及低收缩率配方的溶胶 - 凝胶制品的方法公开(公告)号：US06457329B1
公开(公告)日：2002-10-01
申请号：US09737069
申请日：2000-12-14
IPC分类号： C03B800
摘要： A silica sol-gel fabrication process is provided which allows improved control of the shrinkage that takes place during the drying of a gel body. In particular, the invention makes it possible to attain extremely low shrinkage through the completion of the drying stage, e.g., below 1% linear shrinkage, in relatively large sol-gel bodies of (dry weight) 1 kg or more, typically 10 kg or more, or even 40 kg or more, compared to the much higher shrinkages typically encountered. Specifically, use of a particular polymeric additive makes it possible for a gel body to experience linear shrinkage at least 55% less than an identical process without the polymeric additive.
摘要翻译： 提供了一种二氧化硅溶胶 - 凝胶制造工艺，其可以改进在凝胶体的干燥期间发生的收缩率的控制。 特别地，本发明使得通过干燥阶段的完成（例如，低于1％的线性收缩），在（干重）1kg或更大，通常为10kg的相对较大的溶胶 - 凝胶体中可获得极低的收缩，或 更多，甚至40公斤以上，与通常遇到的高得多的收缩相比。 具体来说，使用特定的聚合物添加剂使得凝胶体的线收缩率比不含聚合物添加剂的相同方法小至少55％。
-
4.发明授权
公开(公告)号：US6080339A
公开(公告)日：2000-06-27
申请号：US097496
申请日：1998-06-15
申请人： Debra Anne Fleming , Philip Hubbauer , David Wilfred Johnson, Jr. , John Burnette MacChesney , Thomas Edward Stockert , Frederick W. Walz, Jr.
发明人： Debra Anne Fleming , Philip Hubbauer , David Wilfred Johnson, Jr. , John Burnette MacChesney , Thomas Edward Stockert , Frederick W. Walz, Jr.
IPC分类号： C03B8/02 , C03B19/12 , C03B20/00 , C03B37/012 , C04B35/14 , C04B35/624 , B29D11/00
CPC分类号： C04B35/14 , C03B19/12 , C04B35/624
摘要： The invention is a sol-gel extrusion process which allows fabrication of both thick and thin wall tubes. For example, the process is capable of preparing silica overcladding tubes in a manner easier than sol-gel casting processes, and also capable of preparing relatively thin substrate tubes, which are difficult to cast. According to the invention, a silica dispersion containing a stabilizing agent is provided, a gelling agent is added to the dispersion to induce gellation, and the resultant gel is extruded into a silica body, in the substantial absence of polymeric material from the gel. Substantially avoiding the inclusion of such polymeric material in overcladding and substrate tubes offers significant commercial advantages by reducing the time and energy required to remove organic materials from the tube bodies, by reducing environmental impact, and by reducing the amount of impurities introduced in the tubes.
摘要翻译： 本发明是一种溶胶 - 凝胶挤出方法，其允许制造厚壁和薄壁管。 例如，该方法能够以比溶胶 - 凝胶浇铸方法更容易的方式制备二氧化硅包覆管，并且还能够制备难以浇铸的相对薄的基材管。 根据本发明，提供含有稳定剂的二氧化硅分散体，向分散体中加入胶凝剂以引起凝胶化，并将所得凝胶挤出成二氧化硅体，基本上不存在来自凝胶的聚合材料。 通过减少从管体中除去有机材料所需的时间和能量，减少环境影响以及通过减少引入管中的杂质的量，基本上避免了这种聚合物材料在外包装和底物管中的包含。
-
公开(公告)号：US5802702A
公开(公告)日：1998-09-08
申请号：US923591
申请日：1997-09-04
申请人： Debra Anne Fleming , David Wilfred Johnson, Jr. , Vincent George Lambrecht, Jr. , Henry Hon Law , David Joseph Liptack , Apurba Roy , John Thomson, Jr.
发明人： Debra Anne Fleming , David Wilfred Johnson, Jr. , Vincent George Lambrecht, Jr. , Henry Hon Law , David Joseph Liptack , Apurba Roy , John Thomson, Jr.
IPC分类号： H01F17/00 , H01F41/04 , H01L21/48 , H05K1/03 , H05K1/09 , H05K1/11 , H05K3/00 , H05K3/24 , H05K3/40
CPC分类号： H01F17/0033 , H01F41/046 , H01L21/486 , H05K1/115 , H05K3/403 , H01F2017/004 , H05K1/0306 , H05K1/092 , H05K2201/09645 , H05K2201/09854 , H05K2203/1476 , H05K3/005 , H05K3/245 , H05K3/4061 , Y10T29/4902 , Y10T29/49076 , Y10T29/49165
摘要： The method of making a metallized magnetic substrate for devices including a magnetic component involves providing an unfired ceramic body. In one exemplary embodiment, the method further involves making one or more vias through the ceramic body, coating the via side walls with conductive material, forming an aperture through the ceramic body, such that an aperture edge intersects the via, and metallizing the unfired ceramic body such that a conductive pathway is formed that includes the conductive material in the via. Finally, the metallized unfired ceramic body is fired in conventional fashion, optionally followed by deposition of additional conductor material.
摘要翻译： 制造包括磁性部件的装置的金属化磁性基板的方法包括提供未烧结的陶瓷体。 在一个示例性实施例中，该方法还包括制造通过陶瓷体的一个或多个通孔，用导电材料涂覆通孔侧壁，通过陶瓷体形成孔，使得孔边缘与通孔相交，并且对未烧结的陶瓷进行金属化 使得形成导电路径，其包括通孔中的导电材料。 最后，金属化未焙烧陶瓷体以常规方式烧制，任选地随后沉积另外的导体材料。
-
公开(公告)号：US5987200A
公开(公告)日：1999-11-16
申请号：US957953
申请日：1997-10-27
申请人： Debra Anne Fleming , Sungho Jin , David Wilfred Johnson, Jr. , Paul Joseph Lemaire , Thomas H. Tiefel, deceased
发明人： Debra Anne Fleming , Sungho Jin , David Wilfred Johnson, Jr. , Paul Joseph Lemaire , Thomas H. Tiefel, deceased
CPC分类号： G02B6/2932 , G02B6/02204 , G02B6/29322 , G02B6/29383 , G02B6/29395 , G02F1/0147 , G02F2201/307
摘要： A tunable fiber grating comprises a temperature-sensitive body secured to a fiber having a fiber grating region for transmitting thermally-induced strain to the grating. The amount of strain and hence the degree of wavelength tuning are controlled by adjusting the temperature of the temperature-sensitive body, wherein the extent of adjustment is preferably pre-determined according to feedback from a wavelength detector. Large thermal strains obtainable with the present invention allow a wide range of wavelength tuning with a relatively small and convenient temperature change near ambient temperature. In a preferred embodiment, the temperature-sensitive body is cylindrical and comprised of a nickel-titanium alloy bonded to the grating. In alternative arrangements, the thermal strain effect can be amplified. An add/drop multiplexer employing the tunable gratings is also described.
摘要翻译： 可调光纤光栅包括固定到具有用于将热致应变传递到光栅的光纤光栅区域的光纤的感温体。 通过调节温度敏感体的温度来控制应变量和因此的波长调谐程度，其中调节范围优选根据来自波长检测器的反馈来预先确定。 通过本发明可获得的大的热应变允许在环境温度附近具有相对较小且方便的温度变化的宽范围的波长调谐。 在优选实施例中，感温体是圆柱形的并且由结合到光栅的镍 - 钛合金构成。 在替代布置中，可以放大热应变效应。 还描述了采用可调谐光栅的分插复用器。
-
公开(公告)号：US06258743B1
公开(公告)日：2001-07-10
申请号：US09146518
申请日：1998-09-03
IPC分类号： C04B3548
CPC分类号： G02B6/0218 , C04B35/486 , C04B35/495
摘要： Ceramic monoliths are described which exhibit tunable coefficients of thermal expansion from about −5 to −11×10−6° C.−1 near ambient temperatures. These two-phase ceramics, which are fabricated, for example, by reactive sintering of WO3 and ZrO2, consists of a matrix of ZrW2O8 with inclusions of ZrO2 having diameters less than 10 &mgr;m. Additives may increase the density of the monoliths to greater than 98% of the calculated density. Green body densities, pre-sintered particle size distribution, sintering atmosphere, microstructure, and mechanical properties are discussed. These ceramics may be used as substrates for thermally compensating fiber Bragg gratings.
摘要翻译： 描述了陶瓷整料，其在环境温度附近表现出约-5至-11×10 -6℃-1的可调热膨胀系数。 这些由WO 3和ZrO 2的反应烧结制成的两相陶瓷由ZrW 2 O 8基体和直径小于10um的ZrO2夹杂物构成。 添加剂可将整料的密度提高到计算密度的98％以上。 讨论了绿体密度，预烧结粒度分布，烧结气氛，微观结构和力学性能。 这些陶瓷可以用作热补偿光纤布拉格光栅的基板。
-
公开(公告)号：US6153078A
公开(公告)日：2000-11-28
申请号：US369105
申请日：1999-08-05
申请人： Debra Anne Fleming , Gideon S. Grader , David Wilfred Johnson, Jr. , Vincent George Lambrecht, Jr. , John Thomson, Jr.
发明人： Debra Anne Fleming , Gideon S. Grader , David Wilfred Johnson, Jr. , Vincent George Lambrecht, Jr. , John Thomson, Jr.
CPC分类号： C25D7/001 , C25D5/022 , H01F41/043 , H01F41/046 , H01F41/16 , H01F17/0033
摘要： The invention provides an improved process for fabricating devices containing metallized magnetic ceramic material, such as inductors, transformers, and magnetic substrates. In particular, the unique vias utilized in the process of the invention allow fabrication of devices from multiple unfired ferrite layers with only a single via-coating step, thereby avoiding the need numerous punching steps. Moreover, there is no need for expanding the dimensions of the vias and thus no need for internal metallization. The invention therefore provides for green tape-type fabrication of devices such as inductors, transformers, and magnetic substrates in a manner faster, less complex, and more reliable than current methods. The invention also relates to use of an improved conductive material in such a process, the conductive material containing silver/palladium particles, ferrite particles, a cellulose-based or other organic binder, and a solvent. After firing of the substrate onto which the ink has been coated, and plating of copper thereon by a copper pyrophosphate bath, the plated copper exhibits a pull strength greater than about 4 kpsi, advantageously greater than about 5 kpsi. Use of a copper pyrophosphate bath also allow uniform plating within long, narrow vias.
摘要翻译： 本发明提供了一种用于制造包含金属化磁性陶瓷材料的器件的改进方法，例如电感器，变压器和磁性衬底。 特别地，在本发明的方法中使用的唯一的通孔允许仅通过单个通孔涂覆步骤从多个未烧制的铁氧体层制造器件，从而避免了需要大量的冲压步骤。 此外，不需要扩大通孔的尺寸，因此不需要内部金属化。 因此，本发明以比当前方法更快，更不复杂和更可靠的方式提供诸如电感器，变压器和磁性基板的器件的绿色带状制造。 本发明还涉及在这种方法中使用改进的导电材料，所述导电材料含有银/钯颗粒，铁氧体颗粒，纤维素基或其它有机粘合剂和溶剂。 在其上涂覆有油墨的基材烧制之后，并通过焦磷酸铜浴将铜镀覆在其上，镀铜显示出大于约4kpsi的拉伸强度，有利地大于约5kpsi。 使用焦磷酸铜浴还可以在长而窄的通孔内均匀镀覆。
-
公开(公告)号：US6007758A
公开(公告)日：1999-12-28
申请号：US21500
申请日：1998-02-10
申请人： Debra Anne Fleming , Gideon S. Grader , David Wilfred Johnson, Jr. , Vincent George Lambrecht, Jr. , John Thomson, Jr.
发明人： Debra Anne Fleming , Gideon S. Grader , David Wilfred Johnson, Jr. , Vincent George Lambrecht, Jr. , John Thomson, Jr.
IPC分类号： C25D5/02 , C25D7/00 , H01F17/00 , H01F41/04 , H01F41/16 , H05K1/16 , H05K3/42 , H05K3/46 , B29C65/02
CPC分类号： C25D7/001 , C25D5/022 , H01F41/043 , H01F41/046 , H01F41/16 , H01F17/0033
摘要： The invention provides an improved process for fabricating devices containing metallized magnetic ceramic material, such as inductors, transformers, and magnetic substrates. In particular, the unique vias utilized in the process of the invention allow fabrication of devices from multiple unfired ferrite layers with only a single via-coating step, thereby avoiding the need numerous punching steps. Moreover, there is no need for expanding the dimensions of the vias and thus no need for internal metallization. The invention therefore provides for green tape-type fabrication of devices such as inductors, transformers, and magnetic substrates in a manner faster, less complex, and more reliable than current methods. The invention also relates to use of an improved conductive material in such a process, the conductive material containing silver/palladium particles, ferrite particles, a cellulose-based or other organic binder, and a solvent. After firing of the substrate onto which the ink has been coated, and plating of copper thereon by a copper pyrophosphate bath, the plated copper exhibits a pull strength greater than about 4 kpsi, advantageously greater than about 5 kpsi. Use of a copper pyrophosphate bath also allow uniform plating within long, narrow vias.
-
10.发明授权
公开(公告)号：US5694503A
公开(公告)日：1997-12-02
申请号：US707879
申请日：1996-09-09
CPC分类号： G02B6/0218 , G02B6/4238 , G02B6/4239
摘要： Conventional optical gratings are relatively temperature sensitive. This sensitivity is generally undesirable but can be reduced or eliminated by attaching the grating to a support member having a negative coefficient of thermal expansion. Exemplarily the member comprises Zr-tungstate and/or Hf-tungstate. The thermal expansion can be tailored by admixture of positive expansion coefficient material (e.g., Al.sub.2 O.sub.3, SiO.sub.2) to the negative expansion coefficient material (e.g., ZrW.sub.2 O.sub.8), or by a variety of other techniques.
摘要翻译： 传统的光栅相对温度敏感。 这种灵敏度通常是不期望的，但是可以通过将光栅附接到具有负的热膨胀系数的支撑构件来减少或消除。 示例性地，该构件包括Zr-钨酸盐和/或Hf-钨酸盐。 热膨胀可以通过将正膨胀系数材料（例如，Al 2 O 3，SiO 2）与负膨胀系数材料（例如，ZrW 2 O 8）的混合，或通过各种其它技术进行调整。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.015 秒)
