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公开(公告)号：US11434175B2
公开(公告)日：2022-09-06
申请号：US16890203
申请日：2020-06-02
发明人： Jun Shi , Sungbo Shim
IPC分类号： C04B35/628 , C04B41/45 , C25D9/04 , C04B35/622
摘要： An electrophoretic deposition method of forming a boron nitride (BN) nanotube interface coating on ceramic fibers has been developed. The method comprises immersing first and second electrodes in a suspension including surface-modified BN nanotubes, where the first electrode includes ceramic fibers positioned on a surface thereof. The surface-modified BN nanotubes comprise BN nanotubes with an electrically charged polymer adsorbed on surfaces thereof. A voltage is applied to the first and second electrodes, and the surface-modified BN nanotubes move toward the first electrode and deposit on the ceramic fibers. After the deposition of the surface-modified BN nanotubes, the ceramic fibers are removed from the suspension and heat treated. Accordingly, a BN nanotube interface coating is formed on the ceramic fibers.
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2.发明申请公开(公告)号：US20210403389A1
公开(公告)日：2021-12-30
申请号：US17166273
申请日：2021-02-03
IPC分类号： C04B37/00 , C23C28/00 , F01D5/28 , C04B41/89 , C23C20/04 , C04B41/00 , C04B41/85 , C04B41/45 , C04B41/50 , C04B41/52
摘要： In some examples, a method may include depositing, from a slurry comprising particles including silicon metal, a bond coat precursor layer including the particles comprising silicon metal directly on a ceramic matrix composite substrate. The method also may include locally heating the bond coat precursor layer to form a bond coat comprising silicon metal. Additionally, the method may include forming a protective coating on the bond coat. In some examples, an article may include a ceramic matrix composite substrate, a bond coat directly on the substrate, and a protective coating on the bond coat. The bond coat may include silicon metal and a metal comprising at least one of Zr, Y, Yb, Hf, Ti, Al, Cr, Mo, Nb, Ta, or a rare earth metal.
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3.发明授权公开(公告)号：US11198276B2
公开(公告)日：2021-12-14
申请号：US16277189
申请日：2019-02-15
发明人： Sungbo Shim , Benjamin Lai
IPC分类号： B32B18/00 , C04B35/626 , C04B35/628 , C04B35/573 , C04B35/80
摘要： A method of forming a ceramic matrix composite (CMC) component having an engineered surface includes applying a surface slurry comprising first particulate solids in a liquid carrier to an outer surface of a ceramic fiber preform. The surface slurry is dried to remove the liquid carrier, and thus a surface slurry layer comprising the first particulate solids is formed on the outer surface. The surface slurry layer is polished to a predetermined thickness and/or surface finish. After polishing, a ceramic tape comprising second particulate solids is applied to the surface slurry layer, and pressure is applied to attach the ceramic tape to the surface slurry layer and to induce consolidation of the ceramic tape and the surface slurry layer. Thus, a multilayer surface region comprising the surface slurry layer and a ceramic tape layer is formed on the ceramic fiber preform. The ceramic fiber preform and the multilayer surface region are infiltrated with a molten material, and, upon cooling, a CMC component having an engineered surface is formed.
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公开(公告)号：US20210188723A1
公开(公告)日：2021-06-24
申请号：US17119345
申请日：2020-12-11
摘要： The disclosure describes braze tape coatings and technique to form articles with differing physical properties in different layers or regions of the article. An example method includes forming a braze tape defining at least one layer that includes a first segment and a second segment. A portion of the second segment in the plane is adjacent to a portion of the first segment in a plane of the layer. The method also includes positioning the braze tape on a surface of a substrate, the plane of the layer of the braze tape being parallel to the surface of the substrate. The method also includes heating the braze tape to melt a constituent of at least one of the first coating material and the second coating material to form a densified coating on the surface of the substrate.
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公开(公告)号：US20190323112A1
公开(公告)日：2019-10-24
申请号：US16388087
申请日：2019-04-18
发明人： Sungbo Shim , Li Li
IPC分类号： C23C4/10 , C23C4/134 , C04B35/622 , C04B35/565 , C04B35/587 , C04B41/50 , C04B41/87 , C04B41/00 , C04B41/45
摘要： A composite bond coat may include a matrix and a reinforcing component. The matrix may be formed from silicon-based particles, and the reinforcing component includes silicon-based ceramic particles. The composite bond coat may be formed by introducing a precursor composition into a plume generated by a thermal spray gun to generate a thermal spray stream. The thermal spray stream may be directed at a major surface defined by a substrate of the component to form the composite bond coat. The precursor composition includes the matrix component and the reinforcing component.
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公开(公告)号：US10399911B2
公开(公告)日：2019-09-03
申请号：US15005790
申请日：2016-01-25
IPC分类号： C04B41/45 , C04B41/81 , C04B41/52 , C04B41/89 , C04B41/85 , C04B41/50 , C04B35/573 , C04B35/80 , C04B41/00 , C04B35/626 , B33Y10/00
摘要： The disclosure describes techniques for forming a surface layer of an article including a CMC using a cast. In some examples, the surface layer includes three-dimensional surface features, which may increase adhesion between the CMC and a coating on the CMC. In some examples, the surface layer may include excess material, with or without three-dimensional surface features, which is on the CMC. The excess material may be machined to remove some of the excess material and facilitate conforming the article to dimensional tolerances, e.g., for fitting the article to another component. The excess material may reduce a likelihood that the CMC (e.g., reinforcement material in the CMC) is damaged by the machining.
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公开(公告)号：US20180222807A1
公开(公告)日：2018-08-09
申请号：US15878970
申请日：2018-01-24
发明人： Sungbo Shim , Robert Shinavski , Ann Bolcavage
IPC分类号： C04B41/45 , C04B41/00 , C04B41/50 , C04B41/51 , C04B41/52 , C04B41/87 , C04B41/88 , C23C4/134 , C23C4/04 , B05D1/18 , B05D3/02 , C23C4/126
CPC分类号： C04B41/456 , B05D1/18 , B05D3/0254 , C04B41/009 , C04B41/4554 , C04B41/5001 , C04B41/5024 , C04B41/5059 , C04B41/5133 , C04B41/5138 , C04B41/52 , C04B41/87 , C04B41/88 , C04B41/89 , C23C4/04 , C23C4/126 , C23C4/134 , C23C4/18 , F01D5/288 , F05D2230/312 , F05D2230/90 , F05D2300/222 , F05D2300/6033 , C04B35/80 , C04B35/565 , C04B35/806 , C04B35/584 , C04B41/4527 , C04B41/4582 , C04B41/5096 , C04B41/4519 , C04B41/4535 , C04B41/455 , C04B41/4517 , C04B41/4558 , C04B41/522 , C04B41/4537 , C04B41/5031 , C04B41/5035 , C04B41/5023 , C04B41/5037 , C04B41/5045
摘要： An example method may include applying a bond coat comprising silicon or a silicon alloy on a surface of a ceramic or ceramic matrix composite substrate, where the bond coat comprises a plurality of pores; infiltrating a precursor into at least some pores of the plurality of pores; and heat-treating the bond coat and the precursor, where after heat-treating a porosity of the bond coat is less than about 5 vol. %, and where after heat-treating, the bond coat is substantially free of continuous porosity extending through a thickness of the bond coat.
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公开(公告)号：US20170044070A1
公开(公告)日：2017-02-16
申请号：US15229786
申请日：2016-08-05
CPC分类号： C04B35/806 , C04B35/565 , C04B35/62857 , C04B35/6286 , C04B35/62863 , C04B35/62876 , C04B35/62884 , C04B35/62894 , C04B35/62897 , C04B37/005 , C04B37/006 , C04B2235/3826 , C04B2235/428 , C04B2235/5244 , C04B2235/614 , C04B2235/616 , C04B2237/08 , C04B2237/083 , C04B2237/122 , C04B2237/365 , C04B2237/38 , C04B2237/708 , C04B2237/72 , C23C16/045
摘要： A ceramic matrix composite component and methods of making are described herein. The ceramic matrix composite may include a silicon containing matrix and refractory fibers embedded within the silicon containing matrix. The ceramic matrix composite component may further include a silicide layer sandwiched between the silicon containing matrix and the refractory fibers. A method of forming a ceramic matrix composite may include infiltrating a fluid that includes a refractory metal element containing compound into a fiber preform that includes fibers. The method may further include depositing the refractory metal element from the refractory metal element containing compound onto the fibers and forming, from the refractory metal element deposited onto the fibers, a refractory metal silicide.
摘要翻译： 本文描述了陶瓷基复合材料组件及其制造方法。 陶瓷基复合材料可以包括含硅基体和嵌入含硅基体内的难熔纤维。 陶瓷基复合材料组件还可以包括夹在含硅基质和耐火纤维之间的硅化物层。 形成陶瓷基质复合材料的方法可以包括将含有难熔金属元素的化合物的流体渗透到包括纤维的纤维预制棒中。 该方法还可以包括将难熔金属元素从含难熔金属元素的化合物沉积到纤维上，并从沉积在纤维上的耐火金属元素形成难熔金属硅化物。
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公开(公告)号：US20160230570A1
公开(公告)日：2016-08-11
申请号：US15040527
申请日：2016-02-10
CPC分类号： F01D5/284 , C04B35/573 , C04B35/62863 , C04B35/62868 , C04B35/62894 , C04B35/806 , C04B41/009 , C04B41/5059 , C04B41/5096 , C04B41/52 , C04B41/89 , C04B2235/3826 , C04B2235/5276 , C04B2235/614 , C04B2235/616 , F01D5/282 , F01D5/288 , F01D11/122 , F05D2240/11 , F05D2300/222 , F05D2300/2261 , F05D2300/6032 , F05D2300/6033 , C04B35/565 , C04B35/584 , C04B35/58092 , C04B41/4529 , C04B41/4556 , C04B41/4527 , C04B41/5024 , C04B41/4582
摘要： A ceramic matrix composite component for use in a gas turbine engine and method for making the same are described herein. The component comprising a body and an outer region. The body having a silicon containing ceramic composite. The outer region on an outer surface of the body.
摘要翻译： 这里描述了一种用于燃气涡轮发动机的陶瓷基复合材料组件及其制造方法。 所述部件包括主体和外部区域。 本体具有含硅陶瓷复合材料。 身体外表面上的外部区域。
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公开(公告)号：US11351696B2
公开(公告)日：2022-06-07
申请号：US16278265
申请日：2019-02-18
发明人： Scott Nelson , Quinlan Shuck , Sean Landwehr , Sungbo Shim
IPC分类号： B28B1/00 , B33Y10/00 , B29C64/165 , B33Y40/00 , C04B35/622 , C04B35/628 , C04B35/657 , C04B35/571 , C04B35/573 , C04B35/58 , C04B35/591 , C04B35/80
摘要： A system and method for forming a porous ceramic preform is provided. The method may include forming a stacked powder structure including a binder layer and a powder layer on the binder layer. The binder layer may be formed by depositing a binder with a spray nozzle on a substrate. The powder layer may be formed by depositing a powder on the binder layer. The porous ceramic preform may be formed by heating the stacked powder structure to pyrolyze the binder. The porous ceramic preform is configured to be infiltrated by a molten material. The substrate may comprise a ceramic fiber preform. After melt infiltration of the porous ceramic preform and the ceramic fiber preform, a densified ceramic feature having a predetermined geometry may be formed on a ceramic matrix composite (CMC) component.
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