High-temperture composite-material turbine blades comprising mainly niobium matrices reinforced with refractory-material fibers being developed. Of refractory fibrous materials investigated, FP-AL(2)0(3), tungsten, and polymer-based SiC fibers most promising. Blade of this type hollow and formed in nearly net shape by wrapping mesh of reinforcing refractory fibers around molybdenum mandrel, then using thermal-gradient chemical-vapor infiltration (CVI) to fill interstices with niobium. CVI process controllable and repeatable, and kinetics of both deposition and infiltration well understood.
Niobium-Matrix-Composite High-Temperature Turbine Blades
NASA Tech Briefs ; 19 , 7
1995-07-01
Miscellaneous
No indication
English
Niobium-Matrix-Composite High-Temperature Turbine Blades
Online Contents | 1995
Performance Evaluation of Conceptual Designs for High Temperature Composite Turbine Blades
British Library Conference Proceedings | 1996
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