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公开(公告)号：US08037717B2
公开(公告)日：2011-10-18
申请号：US10053365
申请日：2001-10-26
Applicant: Steven B. Dawes , Daniel W. Hawtof , Michael T. Murtagh , John S. Rosettie , Andrew P. Schermerhorn , Merrill F. Sproul , John Stone, III , Pushkar Tandon
Inventor： Steven B. Dawes , Daniel W. Hawtof , Michael T. Murtagh , John S. Rosettie , Andrew P. Schermerhorn , Merrill F. Sproul , John Stone, III , Pushkar Tandon
IPC: C03B37/023
CPC classification number: C03B37/01446 , C03B37/0146 , C03B2201/12 , C03B2201/20
Abstract: A method of manufacturing an optical waveguide preform includes providing a first process gas atmosphere to a soot preform contained in a vessel. The first atmosphere is held in the vessel for a first reacting time sufficient to at least partially dope or dry the soot preform. The vessel is then at least partially refilled with a second doping or drying atmosphere. The second doping or drying atmosphere is held in the vessel for a second reacting time sufficient to further dope or dry the soot preform.
Abstract translation: 一种制造光波导预制件的方法包括向容纳在容器中的烟灰预制件提供第一工艺气体气氛。 将第一气氛保持在容器中，以达到足以至少部分地掺杂或干燥烟灰预型体的第一反应时间。 然后用第二掺杂或干燥气氛至少部分地再填充容器。 将第二掺杂或干燥气氛保持在容器中第二反应时间足以进一步掺杂或干燥烟灰预型体。
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公开(公告)号：US20090214413A1
公开(公告)日：2009-08-27
申请号：US12427393
申请日：2009-04-21
Applicant: William P. Addiego , Adra S. Baca , Steven B. Dawes , Wageesha Senaratne
Inventor： William P. Addiego , Adra S. Baca , Steven B. Dawes , Wageesha Senaratne
IPC: C01B31/08
CPC classification number: C01B32/00 , C01B32/30 , C01B32/336
Abstract: The present invention relates to an ordered mesoporous carbon and method for manufacturing the ordered mesoporous carbon which is made from a surfactant, a carbon precursor, water (possibly mixed with an acid) and a water immiscible oil. In addition, the present invention relates to a method of formulating a composition which is used to manufacture the ordered mesoporous carbon. Moreover, the present invention relates to an activated carbon which is made by partially oxidizing an ordered mesoporous carbon.
Abstract translation: 本发明涉及有序介孔碳及由表面活性剂，碳前体，水（可能与酸混合）和水不混溶油制成的有序中孔碳的方法。 此外，本发明涉及一种配制用于制造有序介孔碳的组合物的方法。 此外，本发明涉及通过部分氧化有序介孔碳制成的活性炭。
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公开(公告)号：US07089766B2
公开(公告)日：2006-08-15
申请号：US11034359
申请日：2005-01-10
Applicant: Gerald E. Burke , Steven B. Dawes , V. Srikant , Pushkar Tandon
Inventor： Gerald E. Burke , Steven B. Dawes , V. Srikant , Pushkar Tandon
IPC: C03B37/018 , C03B37/029
CPC classification number: G03F7/70216 , C03B19/1407 , C03B19/1415 , C03B19/1423 , C03B19/1453 , C03B37/01202 , C03B37/01406 , C03B37/01413 , C03B37/0142 , C03B37/0146 , C03B2201/12 , C03B2203/22 , C03B2207/02 , C03B2207/06 , C03B2207/08 , C03B2207/14 , C03B2207/20 , C03B2207/30 , C03B2207/38 , C03B2207/40 , C03B2207/42 , C03B2207/46 , C03B2207/54 , C03B2207/70 , C03B2207/81 , C03C3/06 , C03C2201/12 , C03C2201/20 , C03C2201/23 , C03C2201/30 , C03C2201/32 , F23D14/22 , F23D14/32 , G03F1/60 , G03F7/70958
Abstract: Methods, apparatus and precursors for producing substantially water-free silica soot, preforms and glass. The methods and apparatus make substantially water-free fused silica preforms or glass by removing water as a reaction product, removing water from the atmosphere, removing water from the transport process, or combinations thereof. In a first embodiment, substantially water-free soot, preforms or glass are achieved by using a hydrogen-free fuel, such as carbon monoxide, in the deposition process. In another embodiment, a soot producing burner has parameters that enable operation on a substantially hydrogen-free fuel. End burners, which minimize water production, are also described. Such water-free methods are useful in depositing fluorine-doped soot because of the low water present and the efficiency in which fluorine is incorporated. In another embodiment, glassy barrier layer methods and apparatus are described for minimizing dopant migration, especially fluorine. Laser and induction methods and apparatus for forming the barrier layer are depicted. A chlorine, fluorine and silica precursor, such as chlorofluorosilane, may be utilized to form fluorinated soot. Other methods and apparatus are directed to combinations of conventional and substantially water-free processes. One embodiment is directed to combustion enhancing additives for addition to the substantially hydrogen-free fuels. The methods and apparatus in accordance with the invention are particularly useful for producing photomask substrates and optical fiber preforms.
Abstract translation: 用于生产基本上无水的二氧化硅烟灰，预成型件和玻璃的方法，装置和前体。 该方法和装置通过除去水作为反应产物，从大气中除去水分，从运输过程中除去水或其组合，从而使基本上无水的熔融二氧化硅预制件或玻璃。 在第一实施方案中，在沉积工艺中通过使用无氢燃料如一氧化碳来实现基本上无水的烟灰，预型体或玻璃。 在另一个实施方案中，产生烟灰的燃烧器具有能够在基本上无氢燃料上操作的参数。 还描述了最小化水的生产的终端燃烧器。 这种无水方法由于存在低的水和掺入氟的效率而用于沉积氟掺杂烟灰。 在另一个实施例中，描述了用于最小化掺杂剂迁移，特别是氟的玻璃状阻挡层方法和装置。 描述了用于形成阻挡层的激光和感应方法和装置。 可以使用氯，氟和二氧化硅前体，例如氯氟硅烷来形成氟化烟灰。 其它方法和装置涉及常规和基本无水方法的组合。 一个实施方案涉及用于加入基本上无氢燃料的燃烧增强添加剂。 根据本发明的方法和装置特别适用于制造光掩模基片和光纤预制棒。
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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
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。
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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
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。
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Patent Agency Ranking
公开(公告)号：US5153152A
公开(公告)日：1992-10-06
申请号：US770876
申请日：1991-10-04
Applicant: Steven B. Dawes , John L. Stempin , Dale R. Wexell
Inventor： Steven B. Dawes , John L. Stempin , Dale R. Wexell
CPC classification number: C04B35/62868 , B32B18/00 , C03C14/002 , C04B35/195 , C04B35/62852 , C04B35/62873 , C04B35/62884 , C04B35/62886 , C04B35/62894 , C04B35/80 , C03C2214/02 , C03C2214/03 , C03C2214/20 , C03C2214/30 , C04B2235/36 , C04B2235/5224 , C04B2235/5228 , C04B2235/524 , C04B2235/5244 , C04B2235/5248 , C04B2235/5252 , C04B2235/5268 , C04B2235/5276 , C04B2235/5436 , C04B2235/656 , C04B2235/77 , C04B2235/80 , C04B2235/96 , C04B2237/341 , C04B2237/365 , C04B2237/38 , Y10T428/24124 , Y10T428/2918
Abstract: A fiber-reinforced ceramic matrix composite article comprising fiber-reinforced surface portions disposed on a ceramic core, the core differing in composition and high temperature properties from the surface portions and the fibers present in the surface portions being of a type normally subject to oxidative deterioration at high temperature, wherein the fibers in the surface portion are provided with protection from high temperature oxidative deterioration such that excellent strength and resistance to high temperature embrittlement are achieved for the composite as a whole.
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公开(公告)号：US5132253A
公开(公告)日：1992-07-21
申请号：US628413
申请日：1990-12-17
Applicant: Steven B. Dawes
Inventor： Steven B. Dawes
IPC: C01B33/26 , C01B33/24 , C01B33/40 , C01B33/42 , C01F11/00 , C03B8/02 , C03C1/00 , C03C14/00 , C04B33/04 , C04B35/00 , C04B35/624 , C04B35/626 , C04B35/80 , C04B38/00
CPC classification number: C01B33/28 , C03C1/008 , C03C14/002 , C04B35/624 , C04B35/803 , C03C2214/02 , C03C2214/03 , C03C2214/20 , C03C2214/32
Abstract: A method for synthesizing alkaline earth metal-containing ceramic materials by sol-gel processing is described, wherein a sol containing alkoxides or other soluble precursors for a selected ceramic composition, and additionally containing one or more dissolved alkaline earth metal/crown either complexes, is gelled, dried and fired to convert the precursors and complexes to a polycrystalline ceramic product. The crown ether complexes improve alkaline earth metal solubility and the homogeneous incorporation of these metals into the precursor gels and final crystalline products.
Abstract translation: 描述了通过溶胶 - 凝胶加工合成含碱土金属的陶瓷材料的方法，其中含有选择的陶瓷组合物的醇盐或其它可溶性前体的溶胶，另外含有一种或多种溶解的碱土金属/ 胶凝，干燥并焙烧以将前体和复合物转化为多晶陶瓷产品。 冠醚络合物改善了碱土金属的溶解性，并且将这些金属均匀地引入前体凝胶和最终的结晶产物中。
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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
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。
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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
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。
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10.发明授权Single step laydown method of making dry fiber with complex fluorine doped profile 有权制备具有复杂氟掺杂型材的干纤维的单步沉积方法公开(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。
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