Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
A porosity gradient fibrous preform (100) includes a first fabric-resin layer (102) having a first plurality of fibers (112) and a first resin (114a) and a second fabric-resin layer having a second plurality of fibers (112) and a second resin (114b), the second fabric-resin layer (104) being positioned further outward from a center of the porosity gradient fibrous preform (100) than the first fabric-resin layer (102). The first resin (114a) is different from the second resin (114b) so as to generate sequentially increasing porosity in the preform prior to a CVI densification step. The sequentially increasing porosity can be achieved, for example, by selecting resins for each layer with sequentially increasing moisture content, by selecting resins for each layer with sequentially decreasing char yield, and/or adding black carbon powder to interior located fabric-resin layers.
POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
A porosity gradient fibrous preform (100) includes a first fabric-resin layer (102) having a first plurality of fibers (112) and a first resin (114a) and a second fabric-resin layer having a second plurality of fibers (112) and a second resin (114b), the second fabric-resin layer (104) being positioned further outward from a center of the porosity gradient fibrous preform (100) than the first fabric-resin layer (102). The first resin (114a) is different from the second resin (114b) so as to generate sequentially increasing porosity in the preform prior to a CVI densification step. The sequentially increasing porosity can be achieved, for example, by selecting resins for each layer with sequentially increasing moisture content, by selecting resins for each layer with sequentially decreasing char yield, and/or adding black carbon powder to interior located fabric-resin layers.
POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
VORFORMARCHITEKTUR MIT POROSITÄTSGRADIENT FÜR HOCHTEMPERATURVERBUNDWERKSTOFFE
ARCHITECTURE DE PRÉFORME À GRADIENT DE POROSITÉ POUR COMPOSITES À HAUTE TEMPÉRATURE
THAI BRYAN (Autor:in) / PUJAR VIJAY V (Autor:in) / WAUGH KATHERINE E (Autor:in) / KOROLY CHRISTOPHER C (Autor:in)
12.02.2025
Patent
Elektronische Ressource
Englisch
POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
| Europäisches Patentamt | 2025
POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
| Europäisches Patentamt | 2025
POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
| Europäisches Patentamt | 2025
POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
| Europäisches Patentamt | 2025
POROSITY GRADIENT PREFORM ARCHITECTURE FOR HIGH TEMPERATURE COMPOSITES
| Europäisches Patentamt | 2025