Patent application number | Description | Published |
20080207075 | Optimized fabric lay-up for improved ceramic matrix composites - A ceramic matrix composite (CMC) is constructed from ceramic fabric sheets and a ceramic matrix to yield matrix rich zone of reduced dimensions between fabric sheets. This reduction in dimension decreases the occurrence of delamination between the fabric sheets. The fabric is optimized to reduce the size of matrix rich zones in the composite by increasing the number of fabric plies in a given thickness of composite. | 08-28-2008 |
20080274336 | High temperature insulation with enhanced abradability - A enhanced abradable friable graded insulator FGI results from the laser patterning of a coating where a series of top surfaces reside on a series of columns such that the walls of the columns are not significantly densified relative to the interior of the columns. Patterns can be generated where the columns are oriented independently normal to or at an acute angle to the top surfaces. The cross sections of the top surfaces are formed to conform to the average dimensions of the spheres of the FGI coating. The cross sections of the top surfaces can be more than 1.5 times the diameter of the spheres. Various patterns of top surfaces can be used including regular, random, quasiperiodic patterns. A gradient of abradability can be imposed on the coating. | 11-06-2008 |
20080280101 | Patterned reduction of surface area for abradability - A gas turbine component ( | 11-13-2008 |
20090238684 | Cooling arrangement for CMC components with thermally conductive layer - A CMC wall ( | 09-24-2009 |
20100119777 | Ceramic matrix composite surfaces with open features for improved bonding to coatings - A method to form an improved hybrid ceramic matrix composite structure comprises providing a ceramic matrix composite (CMC) with open features at a surface and applying a thermal barrier coating to the surface. The thermal barrier coating is preferably a friable graded insulation coating (FGI) having hollow ceramic spheres. For acceptance of a FGI coating the open features have a center-to-center separation distance in one or more directions that is between about 100 and about 1,000 percent of the diameter of the hollow ceramic spheres in the FGI and a depth that is between about 20 percent and about 200 percent of the diameter of the hollow ceramic spheres in the FGI. The open feature can result from the winding of tows about a mandrel; the lay-up of fabric including a surface fabric having an open weave; or the use of a 3-D weave, or a 3-D braid. | 05-13-2010 |
20100119807 | CMC WITH MULTIPLE MATRIX PHASES SEPARATED BY DIFFUSION BARRIER - A ceramic matrix composite (CMC) material ( | 05-13-2010 |
20100263194 | ATTACHMENT FOR CERAMIC MATRIX COMPOSITE COMPONENT - A bushing ( | 10-21-2010 |
20110151239 | HIGH TEMPERATURE INSULATION AND INSULATED ARTICLE - An insulation ( | 06-23-2011 |
20120125585 | CMC WALL STRUCTURE WITH INTEGRAL COOLING CHANNELS - A ceramic matrix composite wall structure ( | 05-24-2012 |