公开(公告)号：US5198302A

公开(公告)日：1993-03-30

申请号：US512392

申请日：1990-04-23

Applicant: Kenneth Chyung ,  Steven B. Dawes ,  Dale R. Wexell

Inventor： Kenneth Chyung ,  Steven B. Dawes ,  Dale R. Wexell

IPC: C04B35/18 ,  C03C14/00 ,  C04B35/584 ,  C04B35/622 ,  C04B35/80 ,  C04B41/45 ,  C04B41/52 ,  C04B41/81 ,  C04B41/89

CPC classification number: C04B41/009 ,  C03C14/002 ,  C04B35/62227 ,  C04B35/803 ,  C04B41/4584 ,  C04B41/52 ,  C04B41/81 ,  C04B41/89 ,  C03C2214/02 ,  C03C2214/03 ,  C03C2214/20 ,  Y10T428/2933

Abstract: Silicon nitride reinforcing fibers provided with a protective surface coating comprising a boron nitride base layer and, optionally, an alumina overcoating, and fiber-reinforced ceramic matrix composite products incorporating the protectively-coated fibers, are disclosed. The composites offer significantly improved high temperature strength in combination with low dielectric constant and low dielectric loss characteristics.

Abstract translation: 公开了具有包含氮化硼基底层和任选的氧化铝外涂层的保护性表面涂层的氮化硅增强纤维和掺有保护性涂覆纤维的纤维增强陶瓷基复合材料。 复合材料提供显着改善的高温强度与低介电常数和低介电损耗特性相结合。

公开(公告)号：US4808460A

公开(公告)日：1989-02-28

申请号：US57531

申请日：1987-06-02

Applicant: Kenneth Chyung ,  Steven B. Dawes ,  Kishor P. Gadkaree ,  Robert M. Morena ,  Mark P. Taylor

Inventor： Kenneth Chyung ,  Steven B. Dawes ,  Kishor P. Gadkaree ,  Robert M. Morena ,  Mark P. Taylor

IPC: B32B3/18 ,  B32B17/10 ,  B32B18/00 ,  C03B11/14 ,  C03B19/06 ,  C03C27/06 ,  C04B35/80 ,  C04B38/00 ,  E04C2/34 ,  B32B3/12

CPC classification number: B32B17/10577 ,  B32B18/00 ,  B32B3/18 ,  C03B11/14 ,  C03B19/06 ,  C03C27/06 ,  C04B35/80 ,  C04B38/0006 ,  C04B38/008 ,  E04C2/34 ,  C04B2237/04 ,  C04B2237/10 ,  C04B2237/34 ,  C04B2237/38 ,  C04B2237/62 ,  Y10T428/24149 ,  Y10T428/24661 ,  Y10T428/24694 ,  Y10T428/24727 ,  Y10T428/249969

Abstract: This invention relates to the production of laminated structures consisting essentially of a light weight interior member prepared from a glass, glass-ceramic, or ceramic, an exterior member prepared from a glass, glass-ceramic, or ceramic, and a bonding member prepared from a glass, glass-ceramic, or ceramic. The light weight interior member may be composed of a porous body, a corrugated body, or a honeycomb body. In a preferred embodiment, at least one of said members is reinforced through the entrainment of ceramic fibers and/ or whiskers. In the most preferred embodiment, each exterior and interior member is reinforced through the entrainment of ceramic fibers and/or whiskers and the bonding member is reinforced through the entrainment of ceramic whiskers.

Abstract translation: 本发明涉及层压结构的制造，其主要由玻璃，玻璃陶瓷或陶瓷制成的轻质内部构件，由玻璃，玻璃陶瓷或陶瓷制成的外部构件以及由 玻璃，玻璃陶瓷或陶瓷。 轻质内部构件可以由多孔体，波纹体或蜂窝体构成。 在一个优选实施例中，通过夹带陶瓷纤维和/或晶须来增强至少一个所述构件。 在最优选的实施例中，通过夹带陶瓷纤维和/或晶须来增强每个外部和内部构件，并且通过夹带陶瓷晶须来增强粘合构件。

公开(公告)号：US5652188A

公开(公告)日：1997-07-29

申请号：US287224

申请日：1994-08-08

Applicant: Kenneth Chyung ,  Steven B. Dawes

Inventor： Kenneth Chyung ,  Steven B. Dawes

IPC: C03C14/00 ,  C04B35/80

CPC classification number: C03C14/002 ,  C04B35/803

Abstract: The invention relates to fiber reinforced composite materials, and a method for making, in which ceramic, glass-ceramic or glass matrix precursor particles are coated with a layer of sheet silicate crystals, or precursors for sheet silicate crystals, and then combined with a fiber reinforcement phase disposed within the matrix consisting of amorphous or crystalline inorganic fibers. The method results in a composite material in which a substantially continuous layer of sheet silicate is provided on the matrix particles, resulting in a substantially continuous sheet silicate interface between the inorganic fibers and the ceramic, glass or glass-ceramic matrix.

Abstract translation: 本发明涉及纤维增强复合材料及其制造方法，其中陶瓷，玻璃 - 陶瓷或玻璃基质前体颗粒涂覆有一层硅酸盐晶体或硅酸铝晶体的前体，然后与纤维 强化相设置在由无定形或结晶无机纤维构成的基体内。 该方法产生复合材料，其中在基体颗粒上提供基本上连续的层状硅酸盐层，导致无机纤维和陶瓷，玻璃或玻璃 - 陶瓷基体之间的基本上连续的硅酸盐界面。

公开(公告)号：US5605868A

公开(公告)日：1997-02-25

申请号：US365811

申请日：1994-12-29

Applicant: Kenneth Chyung ,  Steven B. Dawes ,  David C. Larsen ,  Ronald L. Stewart

Inventor： Kenneth Chyung ,  Steven B. Dawes ,  David C. Larsen ,  Ronald L. Stewart

IPC: C03C10/06 ,  C03C14/00

CPC classification number: C03C14/002 ,  C03C2214/03 ,  C03C2214/20 ,  Y10T428/2918 ,  Y10T428/2949

Abstract: This invention is directed to the fabrication of SiC fiber reinforced, ceramic matrix composite articles exhibiting superior high temperature oxidative stability, those articles comprising:(a) a glass-ceramic matrix wherein alkali metal and/or alkaline earth metal aluminosilicate crystals constitute the predominant crystal phase;(b) a fiber reinforcing phase comprising SiC fibers coated with an alkali metal and/or alkaline earth metal sheet silicate entrained within said glass-ceramic matrix; and(c) a borosilicate glass phase dispersed as an intergranular glass within said glass-ceramic matrix, said borosilicate glass phase generally being present in an amount sufficient to provide an intergranular glass phase therein.

Abstract translation: 本发明涉及制备表现出优异的高温氧化稳定性的SiC纤维增强陶瓷基复合材料制品，所述制品包括：（a）玻璃 - 陶瓷基体，其中碱金属和/或碱土金属硅铝酸盐晶体构成主要晶体 相; （b）纤维增强相，其包含被夹在所述玻璃 - 陶瓷基体内的碱金属和/或碱土金属片状硅酸盐涂覆的SiC纤维; 和（c）在所述玻璃 - 陶瓷基体内作为晶间玻璃分散的硼硅酸盐玻璃相，所述硼硅酸盐玻璃相通常以足以在其中提供晶间玻璃相的量存在。

公开(公告)号：US4948758A

公开(公告)日：1990-08-14

申请号：US456803

申请日：1989-12-26

Applicant: George H. Beall ,  Kenneth Chyung ,  Steven B. Dawes ,  Kishor P. Gadkaree ,  Syed N. Hoda

Inventor： George H. Beall ,  Kenneth Chyung ,  Steven B. Dawes ,  Kishor P. Gadkaree ,  Syed N. Hoda

IPC: C03C10/10 ,  C03C14/00 ,  C04B35/80 ,  C04B41/45 ,  C04B41/81

CPC classification number: C04B35/80 ,  C03C14/002 ,  C04B41/4584 ,  C04B41/81 ,  C03C2214/02 ,  C03C2214/03 ,  C03C2214/20

Abstract: Ceramic matrix composite articles comprising a ceramic, glass-ceramic or glass matrix and a fiber reinforcement phase disposed within the matrix consisting of amorphous or crystalline inorganic fibers, wherein there is provided, on or in close proximity to the surfaces of the inorganic fibers, a layer of sheet silicate crystals constituting a sheet silicate interface between the inorganic fibers and the ceramic, glass, or glass-ceramic matrix. Optionally, the composition of the matrix may be the same as the sheet silicate interface so that the matrix provides the sheet silicate layer.

Abstract translation: 包含陶瓷，玻璃陶瓷或玻璃基质的陶瓷基质复合制品以及设置在由无定形或结晶无机纤维构成的基体内的纤维增强相，其中在无机纤维的表面上或紧邻无机纤维的表面上提供 层状硅酸盐晶体构成无机纤维与陶瓷，玻璃或玻璃 - 陶瓷基体之间的硅酸盐界面。 任选地，基质的组成可以与片状硅酸盐界面相同，使得基质提供片状硅酸盐层。

公开(公告)号：US4935387A

公开(公告)日：1990-06-19

申请号：US261671

申请日：1988-10-24

Applicant: George H. Beall ,  Kenneth Chyung ,  Steven B. Dawes ,  Kisphor P. Gadkaree ,  Syed N. Hoda

Inventor： George H. Beall ,  Kenneth Chyung ,  Steven B. Dawes ,  Kisphor P. Gadkaree ,  Syed N. Hoda

IPC: C03C10/10 ,  C03C14/00 ,  C04B35/80 ,  C04B41/45 ,  C04B41/81

CPC classification number: C04B41/009 ,  C03C14/002 ,  C04B35/80 ,  C04B41/4584 ,  C04B41/81 ,  C03C2214/02 ,  C03C2214/03 ,  C03C2214/20 ,  Y10S428/902

Abstract: Ceramic matrix composite articles comprising a ceramic, glass-ceramic or glass matrix and a fiber reinforcement phase disposed within the matrix consisting of amorphous or cyrstalline inorganic fibers, wherein there is provided, on or in close proximity to the surfaces of the inorganic fibers, a layer of sheet silicate crystals constituting a sheet silicate interface between the inorganic fibers and the ceramic, glass, or glass-ceramic matrix. Optionally, the composition of the matrix may be the same as the sheet silicate interface so that the matrix provides the sheet silicate layer.

Abstract translation: 包含陶瓷，玻璃陶瓷或玻璃基质的陶瓷基质复合制品和设置在由无定形或无环状无机纤维构成的基质内的纤维增强相，其中在无机纤维的表面上或附近提供无机纤维的 层状硅酸盐晶体构成无机纤维与陶瓷，玻璃或玻璃 - 陶瓷基体之间的硅酸盐界面。 任选地，基质的组成可以与片状硅酸盐界面相同，使得基质提供片状硅酸盐层。

公开(公告)号：US06843076B2

公开(公告)日：2005-01-18

申请号：US09918088

申请日：2001-07-30

Applicant: Steven B. Dawes ,  Michael T. Murtagh ,  Pushkar Tandon

Inventor： Steven B. Dawes ,  Michael T. Murtagh ,  Pushkar Tandon

IPC: C03B37/018 ,  C03B37/014 ,  C03C13/04 ,  G02B6/028 ,  G02B6/036

CPC classification number: G02B6/03627 ,  C03B37/01446 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03C13/04 ,  G02B6/0283

Abstract: A method of making an optical waveguide preform includes forming a preform including a first portion and a second radial portion, wherein the second portion includes a dopant, and wherein the first portion exhibits a density greater than the second portion. The method further includes stripping at least a portion of the dopant from the second portion. In a preferred embodiment, the stripped dopant has migrated in a previous processing step.

Abstract translation: 制造光波导预成型件的方法包括形成包括第一部分和第二径向部分的预成型件，其中第二部分包括掺杂剂，并且其中第一部分表现出比第二部分大的密度。 该方法还包括从第二部分剥离至少一部分掺杂剂。 在优选的实施方案中，剥离的掺杂剂已经在先前的处理步骤中迁移。

公开(公告)号：US06697541B1

公开(公告)日：2004-02-24

申请号：US09569647

申请日：2000-05-12

Applicant: Gang Chen ,  Steven B. Dawes ,  Glenn E. Kohnke ,  Laura A. Weller-Brophy

Inventor： Gang Chen ,  Steven B. Dawes ,  Glenn E. Kohnke ,  Laura A. Weller-Brophy

IPC: G02F1295

CPC classification number: G02B6/02204 ,  G02B6/02095

Abstract: A dynamically tunable filter controls the magnitude of couplings between core and cladding modes of a waveguide by surrounding the waveguide with an overcladding having an adjustable refractive index. The coupled modes are attenuated along the core to produce the desired spectral response. The adjustment to the overcladding index is made in a range that is above the refractive index of the underlying cladding to vary amplitudes of attenuated bands of wavelengths without shifting central wavelengths of the bands.

Abstract translation: 动态可调滤波器通过用具有可调折射率的外包围围绕波导来控制波导的芯和包层模式之间的耦合的大小。 耦合模式沿核心被衰减以产生期望的光谱响应。 对包层指数的调整在高于基底包层的折射率的范围内进行，以改变衰减的波长带的幅度，而不会移动带的中心波长。

公开(公告)号：US06411746B1

公开(公告)日：2002-06-25

申请号：US09484491

申请日：2000-01-18

Applicant: Darol Chamberlain ,  Gang Chen ,  Steven B. Dawes ,  Peter J. McNeilly ,  Mike X. Ouyang ,  Laura A. Weller-Brophy

Inventor： Darol Chamberlain ,  Gang Chen ,  Steven B. Dawes ,  Peter J. McNeilly ,  Mike X. Ouyang ,  Laura A. Weller-Brophy

IPC: G02F1035

CPC classification number: G02F1/0147 ,  G02F1/0115 ,  G02F2201/307 ,  G05D23/24

Abstract: The present invention relates to a tunable optical device 10 that includes an optical fiber device 12 having optical properties that vary with temperature and a heater 14. The heater 14 is thermally coupled to the optical fiber device 12. The heater 14 includes a metal layer 18 and two electrical contacts 20, 22 that are electrically connected to the metal layer 18. The electrical contacts 20, 22 are spaced apart from one another along the metal layer 18. The electrical resistance of the portion of the metal layer 18 between the contacts 20, 22 varies with temperature and serves as a resistive heater. The invention also includes a controller 16 that is electrically connected to the heater 14. The controller 16 provides electrical power to the heater 14 and measures the electrical voltage across the heater 14. The controller 16 compares the measured electrical voltage to a pre-selected reference value. The controller then regulates the amount of electrical current supplied to the heater 14. By regulating the amount of electrical current supplied to the heater 14 the temperature of the heater 14 is controlled.

Abstract translation: 本发明涉及一种可调谐光学器件10，其包括具有随温度变化的光学特性的光纤器件12和加热器14.加热器14热耦合到光纤器件12.加热器14包括金属层18 以及电连接到金属层18的两个电触点20,22.电触点20,22沿着金属层18彼此间隔开。金属层18在触点20之间的电阻 ，22随温度变化，用作电阻加热器。 本发明还包括电连接到加热器14的控制器16.控制器16向加热器14提供电力并测量加热器14两端的电压。控制器16将测得的电压与预选参考值进行比较 值。 然后，控制器调节供应给加热器14的电流量。通过调节供应给加热器14的电流量，控制加热器14的温度。

公开(公告)号：US06599957B2

公开(公告)日：2003-07-29

申请号：US09850394

申请日：2001-05-07

Applicant: Steven B. Dawes ,  Michael E. DeRosa ,  Robert J. Hagerty ,  Jianguo Wang

Inventor： Steven B. Dawes ,  Michael E. DeRosa ,  Robert J. Hagerty ,  Jianguo Wang

IPC: C08F248

CPC classification number: G02B6/12011 ,  C09D4/06 ,  G02B6/12028 ,  G02B6/1203 ,  G02B6/24 ,  G02B6/3801 ,  C08F259/08

Abstract: A UV light-curable composition comprises: (a) a first component, said first component being UV light-polymerizable polymer having a first index of refraction; and (b) a second component, the second component being UV light-polymerizable monomer having a second index of refraction, the second index of refraction being higher than said first index of refraction; wherein the first component polymerizes slower upon exposure to UV radiation than the second component.