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11. 发明授权

US5759932A Coating composition for metal-based substrates, and related processes 失效
标题翻译：金属基底涂料组合物及相关工艺
公开(公告)号：US5759932A
公开(公告)日：1998-06-02
申请号：US745232
申请日：1996-11-08
申请人： D. Sangeeta , Lawrence Edward Szala , David Winfield Woodruff , Bangalore Aswatha Nagaraj , Daniel Scott McAtee , Clifford Lawrence Spiro
发明人： D. Sangeeta , Lawrence Edward Szala , David Winfield Woodruff , Bangalore Aswatha Nagaraj , Daniel Scott McAtee , Clifford Lawrence Spiro
IPC分类号： C09D1/00 , C09D5/00 , C09D7/12 , C23C24/08 , C23C28/04 , C04B38/06 , C04B35/48
CPC分类号： C23C28/04 , C09D1/00 , C09D7/1291 , C23C24/08 , C23C28/042 , C08K3/22 , C08K7/18 , C08K7/24 , Y02T50/67
摘要： An improved thermal barrier coating for metal substrates such as superalloys is provided. The coating is a slurry composition, comprising spheres of zirconia, at least some of which are hollow, contained within a porous oxide matrix, such as aluminosilicate. The slurry composition can be applied by slurry casting or similar techniques to the desired surface. Coating methods involve the application of successive layers of variations of the slurry composition, with various curing techniques used between layers and after the final coating is applied. Another embodiment of this invention embraces a composite coating, comprising (i) an oxide matrix phase; (ii) zirconia spheres embedded in the oxide matrix; and (iii) a porous phase.
摘要翻译：提供了一种用于诸如超级合金的金属基底的改进的热障涂层。涂层是浆料组合物，其包含氧化锆球体，其中至少一些是中空的，包含在多孔氧化物基质如硅铝酸盐中。浆料组合物可以通过浆料浇铸或类似技术施加到所需的表面上。涂覆方法包括施加浆料组合物的连续层的变化，在层之间和施加最终涂层之后使用各种固化技术。本发明的另一个实施方案包括复合涂层，其包括（i）氧化物基质相; （ii）嵌入氧化物基质中的氧化锆球; 和（iii）多孔相。

12. 发明授权

US06413582B1 Method for forming metallic-based coating 失效
标题翻译：形成金属基涂层的方法
公开(公告)号：US06413582B1
公开(公告)日：2002-07-02
申请号：US09345543
申请日：1999-06-30
申请人： Dong-Sil Park , D. Sangeeta , Yuk-Chiu Lau , Theodore Robert Grossman , David Alan Nye
发明人： Dong-Sil Park , D. Sangeeta , Yuk-Chiu Lau , Theodore Robert Grossman , David Alan Nye
IPC分类号： B05D722
CPC分类号： C23C10/18 , C23C24/08
摘要： A method for coating an internal surface of a substrate includes providing a substrate having an internal surface, coating a slurry on the internal surface, the slurry containing a metallic powder, and drying the slurry such that the slurry forms a metal-based coating on the substrate.
摘要翻译：涂布基材的内表面的方法包括提供具有内表面的基材，在内表面上涂布浆料，含有金属粉末的浆料，并干燥浆料，使得浆料在基材上形成金属基涂层基质。

13. 发明授权

US6146692A Caustic process for replacing a thermal barrier coating 有权
标题翻译：用于更换热障涂层的苛刻工艺
公开(公告)号：US6146692A
公开(公告)日：2000-11-14
申请号：US210655
申请日：1998-12-14
申请人： D. Sangeeta , Howard John Farr , Roger Dale Wustman
发明人： D. Sangeeta , Howard John Farr , Roger Dale Wustman
IPC分类号： B08B3/08 , C23C4/02 , C23C10/02 , C23C16/00 , C23F1/00 , C23F1/40 , C23G1/14 , C23G1/20 , C23G3/00 , F01D5/00 , F01D5/28 , B05D3/10
CPC分类号： C23C10/02 , C23C4/02 , C23G1/20 , F01D5/005 , F01D5/288 , Y02T50/67 , Y02T50/671 , Y10T29/49318
摘要： An aqueous caustic process can be used for replacing a thermal barrier coating on a metal surface. In the process, the metal surface is contacted with a caustic solution to remove the thermal barrier coating. The processing conditions for contacting the caustic solution are selected to avoid the formation of a peel layer during a subsequent application of a replacement thermal barrier coating and heat treatment. A replacement thermal barrier coating is then reapplied to the metal surface.
摘要翻译：可以使用苛性碱水处理来替代金属表面上的热障涂层。在此过程中，金属表面与苛性碱溶液接触以除去热障涂层。选择与苛性碱溶液接触的处理条件，以避免在随后施加置换热障涂层和热处理期间形成剥离层。然后将替代的热障涂层重新施加到金属表面。

14. 发明授权

US5985368A Coating composition for metal-based substrates, and related processes 失效
标题翻译：金属基底涂料组合物及相关工艺
公开(公告)号：US5985368A
公开(公告)日：1999-11-16
申请号：US13272
申请日：1998-01-26
申请人： D. Sangeeta , Lawrence Edward Szala , David Winfield Woodruff , Bangalore Aswatha Nagaraj , Daniel Scott McAtee , Clifford Lawrence Spiro
发明人： D. Sangeeta , Lawrence Edward Szala , David Winfield Woodruff , Bangalore Aswatha Nagaraj , Daniel Scott McAtee , Clifford Lawrence Spiro
IPC分类号： C09D1/00 , C09D5/00 , C09D7/12 , C23C24/08 , C23C28/04 , B05D3/02 , B05D3/08 , B05D1/38
CPC分类号： C23C28/04 , C09D1/00 , C09D7/1291 , C23C24/08 , C23C28/042 , C08K3/22 , C08K7/18 , C08K7/24 , Y02T50/67
摘要： An improved thermal barrier coating for metal substrates such as superalloys is disclosed. The coating is a slurry composition, comprising spheres of zirconia, at least some of which are hollow, contained within a porous oxide matrix, such as aluminosilicate. The slurry composition can be applied by slurry casting or similar techniques to the desired surface. Coating methods are also described. In general, they involve the application of successive layers of variations of the slurry composition, with various curing techniques used between layers and after the final coating is applied. Another embodiment of this invention embraces a composite coating, comprising (i) an oxide matrix phase; (ii) zirconia spheres embedded in the oxide matrix; and (iii) a porous phase.
摘要翻译：公开了一种用于诸如超级合金的金属基底的改进的热障涂层。涂层是浆料组合物，其包含氧化锆球体，其中至少一些是中空的，包含在多孔氧化物基质如硅铝酸盐中。浆料组合物可以通过浆料浇铸或类似技术施加到所需的表面上。还描述了涂覆方法。一般来说，它们包括施加浆料组合物的连续的变化层，在层之间和施加最终涂层之后使用各种固化技术。本发明的另一个实施方案包括复合涂层，其包括（i）氧化物基质相; （ii）嵌入氧化物基质中的氧化锆球; 和（iii）多孔相。

15. 发明授权

US5779809A Method of dissolving or leaching ceramic cores in airfoils 失效
标题翻译：在机翼中溶解或浸出陶瓷芯的方法
公开(公告)号：US5779809A
公开(公告)日：1998-07-14
申请号：US578799
申请日：1995-12-26
申请人： D. Sangeeta
发明人： D. Sangeeta
IPC分类号： B22D29/00 , B08B3/10
CPC分类号： B22D29/002
摘要： A process for removing, leaching, or dissolving ceramic cores used to maintain dimensional tolerances for internal passages during metal casting operations of hollow airfoils. The process is especially suited for dissolving porous ceramic cores, such as alumina, silica, alumina doped with oxides, and combinations thereof, that are used in internal passages in turbine airfoils during metal casting operations.
摘要翻译：用于在中空翼型件的金属铸造操作期间去除，浸出或溶解用于维持内部通道的尺寸公差的陶瓷芯的方法。该方法特别适用于在金属铸造操作期间用于涡轮机翼中的内部通道中使用的多孔陶瓷芯，例如氧化铝，二氧化硅，掺有氧化物的氧化铝及其组合。

16. 发明授权

US5643474A Thermal barrier coating removal on flat and contoured surfaces 失效
标题翻译：在平坦和轮廓的表面上去除热障涂层
公开(公告)号：US5643474A
公开(公告)日：1997-07-01
申请号：US578803
申请日：1995-12-26
申请人： D. Sangeeta
发明人： D. Sangeeta
IPC分类号： C23G1/19 , C23G1/20 , C23G5/02 , C23G1/00
CPC分类号： C23G5/02 , C23G1/19 , C23G1/20
摘要： The invention is directed towards a wet chemical process for removing physical vapor deposited or air plasma sprayed thermal barrier coatings from coated parts without damaging or effecting the bond coat or the base metal substrate. The process entails using an autoclave with an organic caustic solution to fully remove the thermal barrier coating.
摘要翻译：本发明涉及用于从涂覆部分去除物理气相沉积或空气等离子体喷涂的热障涂层的湿化学方法，而不损坏或影响粘结涂层或基底金属基底。该方法需要使用具有有机苛性碱溶液的高压釜来完全除去热障涂层。

17. 发明授权

US5628938A Method of making a ceramic composite by infiltration of a ceramic preform 失效
标题翻译：通过陶瓷预制件的渗透制造陶瓷复合材料的方法
公开(公告)号：US5628938A
公开(公告)日：1997-05-13
申请号：US342483
申请日：1994-11-18
申请人： D. Sangeeta , Svante Prochazka , Krishan L. Luthra
发明人： D. Sangeeta , Svante Prochazka , Krishan L. Luthra
IPC分类号： C04B35/573 , B05B3/00
CPC分类号： C04B35/573
摘要： A method for making a composite ceramic article by infiltration of a sintered ceramic preform with an infiltrate phase. The ceramic preform is made by directionally solidifying a liquid medium containing a dispersion of ceramic particles to produce a green, porous ceramic preform a plurality of interconnected lamelli that are partially separated from one another by complementary interlamellar regions, removing the solidified liquid medium and sintering the ceramic preform. This method may be used to make silicon carbide composites where a silicon carbide preform is first infiltrated with carbon to coat the lamelli of the preform, followed by infiltration of the carbon coated preform with molten silicon, whereby the molten silicon and carbon react to form silicon carbide in the interlamellar regions. The ceramic preform may also be coated with a thin, diffusion-inhibiting ceramic layer prior to infiltration in order to prevent interdiffusion between the lamelli of the preform and the infiltrate phase, and provide a plurality of mechanically weak, crack deflecting interfaces within the composite article.
摘要翻译：一种通过浸渗相的烧结陶瓷预型体的渗透制造复合陶瓷制品的方法。通过定向凝固含有陶瓷颗粒分散体的液体介质来制造陶瓷预制件，以通过互补的层间区域彼此部分地分离出多个相互连接的薄片以形成多孔互连的薄片，除去固化的液体介质并烧结陶瓷预制件。该方法可用于制造碳化硅复合材料，其中碳化硅预成型件首先用碳渗透以涂覆预成型件的薄片，随后用熔融硅渗透碳涂覆的预制件，由此熔融硅和碳反应形成硅在层间区域的碳化物。陶瓷预制件还可以在渗透之前涂覆有薄的扩散抑制性陶瓷层，以防止预成型件的薄片与渗透相之间的相互扩散，并且在复合制品内提供多个机械弱的裂纹偏转界面。

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