公开(公告)号：US5290333A

公开(公告)日：1994-03-01

申请号：US984613

申请日：1992-12-02

申请人： Herman F. Nied ,  Richard L. Mehan

发明人： Herman F. Nied ,  Richard L. Mehan

IPC分类号： B23K20/00 ,  C04B37/02 ,  F28F21/04 ,  F28F21/08 ,  C03C27/00

CPC分类号： C04B37/026 ,  C04B35/62665 ,  C04B37/025 ,  F28F21/04 ,  C04B2237/062 ,  C04B2237/083 ,  C04B2237/10 ,  C04B2237/122 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/403 ,  C04B2237/52 ,  C04B2237/54 ,  C04B2237/58 ,  C04B2237/64 ,  C04B2237/708 ,  C04B2237/72 ,  C04B2237/765 ,  C04B2237/82 ,  C04B2237/84 ,  C04B2237/88 ,  Y10T428/12535 ,  Y10T428/12611 ,  Y10T428/131 ,  Y10T428/1317 ,  Y10T428/249957 ,  Y10T428/249969 ,  Y10T428/24997 ,  Y10T428/24999

摘要： A Si--SiC ceramic layer is bonded to a non-porous SiC substrate with the Si etched from the layer to form a relatively porous surface on the otherwise non-porous high strength SiC substrate. A quartz layer is softened by heating and forced into the pores of the porous layer to form a mechanical bond to the SiC substrate. A refractory metal layer is bonded to the quartz layer to complete the joint. A refractory metal support component is then bonded to the refractory layer whereby the quartz serves as a high strength, high temperature reaction barrier between the metal of the refractory layer and the silicon of the SiC substrate.

摘要翻译： 将Si-SiC陶瓷层与无孔SiC衬底结合，其中从层上蚀刻的Si在另外无孔的高强度SiC衬底上形成相对多孔的表面。 石英层通过加热软化并且被迫进入多孔层的孔隙中以形成与SiC衬底的机械结合。 难熔金属层结合到石英层以完成接头。 然后将耐火金属支撑部件结合到耐火层，由此石英用作耐火层的金属和SiC衬底的硅之间的高强度，高温反应屏障。

公开(公告)号：US5200241A

公开(公告)日：1993-04-06

申请号：US353580

申请日：1989-05-18

申请人： Herman F. Nied ,  Richard L. Mehan

发明人： Herman F. Nied ,  Richard L. Mehan

IPC分类号： B23K20/00 ,  C04B37/02 ,  F28F21/04 ,  F28F21/08

CPC分类号： C04B37/026 ,  C04B35/62665 ,  C04B37/025 ,  F28F21/04 ,  C04B2237/062 ,  C04B2237/083 ,  C04B2237/10 ,  C04B2237/122 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/403 ,  C04B2237/52 ,  C04B2237/54 ,  C04B2237/58 ,  C04B2237/64 ,  C04B2237/708 ,  C04B2237/72 ,  C04B2237/765 ,  C04B2237/82 ,  C04B2237/84 ,  C04B2237/88 ,  Y10T428/12535 ,  Y10T428/12611 ,  Y10T428/131 ,  Y10T428/1317 ,  Y10T428/249957 ,  Y10T428/249969 ,  Y10T428/24997 ,  Y10T428/24999

摘要： A Si--SiC ceramic layer is bonded to a non-porous SiC substrate with the Si etched from the layer to form a relatively porous surface on the otherwise non-porous high strength SiC substrate. A quartz layer is softened by heating and forced into the pores of the porous layer to form a mechanical bond to the SiC substrate. A refractory metal layer is bonded to the quartz layer to complete the joint. A refractory metal support component is then bonded to the refractory layer whereby the quartz serves as a high strength, high temperature reaction barrier between the metal of the refractory layer and the silicon of the SiC substrate.

摘要翻译： 将Si-SiC陶瓷层与无孔SiC衬底结合，其中从层上蚀刻的Si在另外无孔的高强度SiC衬底上形成相对多孔的表面。 石英层通过加热软化并且被迫进入多孔层的孔隙中以形成与SiC衬底的机械结合。 难熔金属层结合到石英层以完成接头。 然后将耐火金属支撑部件结合到耐火层，由此石英用作耐火层的金属和SiC衬底的硅之间的高强度，高温反应屏障。

公开(公告)号：US5281487A

公开(公告)日：1994-01-25

申请号：US441597

申请日：1989-11-27

申请人： Lee E. Rumaner ,  Dennis M. Gray ,  Richard L. Mehan ,  John R. Rairden, III

发明人： Lee E. Rumaner ,  Dennis M. Gray ,  Richard L. Mehan ,  John R. Rairden, III

IPC分类号： C23C4/02 ,  B22F3/00

CPC分类号： C23C4/02 ,  Y02T50/67 ,  Y10T428/12056 ,  Y10T428/12146 ,  Y10T428/12854 ,  Y10T428/12861 ,  Y10T428/12944 ,  Y10T428/12951

摘要： An improved thermal barrier coating is disclosed. The coating is formed on a metal part to be exposed to high temperature gases. The metal part is first coated with an adherent sublayer of MCrAlY alloy. In this case, the M of the MCrAlY is nickel, cobalt, iron, or some combination of these metals. A diffused layer of MCrAlY combined with a low concentration of mullite is formed over the MCrAlY subcoating and the mullite is increased in concentration as the thickness of the layer increases. The outer surface of the layer is all mullite. Improved life expectancy and decreased thermal conductivity is achieved.

摘要翻译： 公开了一种改进的隔热涂层。 该涂层形成在金属部件上以暴露于高温气体中。 金属部分首先涂覆有MCrAlY合金的粘附子层。 在这种情况下，MCrAlY的M是镍，钴，铁或这些金属的某些组合。 在MCrAlY底涂层上形成MCrAlY与低浓度莫来石结合的扩散层，随着层厚的增加，莫来石的浓度增加。 该层的外表面均为莫来石。 实现了预期寿命提高和导热性降低。

公开(公告)号：US4854196A

公开(公告)日：1989-08-08

申请号：US198526

申请日：1988-05-25

申请人： Richard L. Mehan

发明人： Richard L. Mehan

IPC分类号： B23K35/02 ,  B23K35/32 ,  C23C24/10 ,  F01D5/20

CPC分类号： F01D11/12 ,  B23K35/02 ,  B23K35/327 ,  C23C24/103

摘要： A method of embedding an oxidation resistant abrasive material in the tip of a turbine blade is taught. The oxidation resistant abrasive may be aluminum oxide. Its low density is increased by coating fine particles with platinum metal to achieve a density greater than that of the metal of the blade tip. The blade tip is then melted locally to provide a pool of melt into which the high density aluminum oxide can be inserted. Freezing the melt embeds the aluminum oxide in the blade tip.

摘要翻译： 教导了一种将耐氧化研磨材料嵌入涡轮叶片尖端的方法。 抗氧化磨料可以是氧化铝。 通过用铂金属涂覆细颗粒来提高其低密度，以达到比叶片尖端金属的密度更大的密度。 然后将刀片尖端局部熔化，从而提供可以插入高密度氧化铝的熔体池。 熔化熔体将氧化铝嵌入叶片尖端。

公开(公告)号：US5508071A

公开(公告)日：1996-04-16

申请号：US127964

申请日：1993-09-28

申请人： William F. Banholzer ,  Roger N. Johnson ,  Gary L. Leonard ,  Richard L. Mehan ,  Clifford L. Spiro

发明人： William F. Banholzer ,  Roger N. Johnson ,  Gary L. Leonard ,  Richard L. Mehan ,  Clifford L. Spiro

IPC分类号： C23C16/26 ,  C23C16/04 ,  C23C16/27 ,  C30B29/04 ,  B05D3/00

CPC分类号： C23C16/045 ,  Y10T428/131

摘要： In its broadest aspects, the present invention is directed to a method for improving the abrasion resistance of the annular interior surface of an annulus. Such method comprises the steps of (a) placing said annulus heated to an elevated CVD diamond-forming temperature in a vacuum chamber held under reduced pressure; (b) providing a hydrocarbon/hydrogen gaseous mixture within said chamber; (c) at least partially decomposing said gaseous mixture in said chamber; and (d) directing said at least partially decomposed gaseous mixture into said heated annular interior for diamond deposition/growth to occur on said annular interior surface. As noted above, spray nozzles, valves, injectors, wire drawing dies, and like annular products are ideally suited for use in accordance with the precepts of the present invention.

摘要翻译： 在其最广泛的方面，本发明涉及一种改善环形环的内表面的耐磨性的方法。 这种方法包括以下步骤：（a）将加热到升高的CVD金刚石形成温度的所述环带放置在减压保持的真空室中; （b）在所述室内提供烃/氢气体混合物; （c）至少部分地分解所述室中的所述气体混合物; 和（d）将所述至少部分分解的气体混合物引导到所述加热的环形内部中，以使金刚石沉积/生长发生在所述环形内表面上。 如上所述，喷嘴，阀门，注射器，拉丝模具等环形产品理想地适合于根据本发明的规范使用。

公开(公告)号：US4109050A

公开(公告)日：1978-08-22

申请号：US748930

申请日：1976-12-09

申请人： Richard L. Mehan ,  Charles R. Morelock

发明人： Richard L. Mehan ,  Charles R. Morelock

IPC分类号： C04B41/80 ,  B22F3/24 ,  C04B41/50 ,  C04B41/85 ,  C04B41/87 ,  F01D5/28 ,  B32B9/04

CPC分类号： C04B41/009 ,  B22F3/24 ,  C04B41/5035 ,  C04B41/87 ,  F01D5/284 ,  Y02T50/672 ,  Y10T428/26 ,  Y10T428/263 ,  Y10T428/264 ,  Y10T428/265

摘要： A method is provided for making silicon-based ceramic composites having reduced tendency to form complex silicides when in contact with high performance metals or metallic alloys at elevated temperatures. The surface of the silicon-based ceramic composite, such as silicon carbide-silicon matrix composite, is etched, treated with an inorganic oxide mixture and fired. Improved performance is provided when the resulting composite is used in a specific application in contact with a high performance metal or metallic alloy, such as a gas turbine bucket.