IGTC-41 Advanced Materials in Gas Turbine Engines : An Assessment(Session B-8 MATERIAL AND FABRICATION)

概要

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The next generation of aero turbine engines are being designed to achieve revolutionary advances. For example, the thrust to weight ratio of military engines may double to 20 to 1 within a decade. Similarly large advances are to be obtained in other performance measures such as fuel efficiencies, longer service lives, lower cost of ownership, and reliability. It is estimated that as much as half of these benefits may result from the use of emerging advanced materials. These materials will involve the use of carbon and ceramic fibers, in matrices of high temperature polymers, ceramics, glasses, carbon and metals such as titanium, and titanium aluminides. Most of these have been under development for more than a decade now, with notable successes. Simultaneously, advances have been made in other critical technologies, such as design, fabrication, lifing, testing, NDT and quality control. Though the actual usage is still years away, progress made in the last five years has justifiably raised optimism and expectations.
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