High-temperature, light-weight materials represent enabling technology in the continued evolution of high-performance aerospace vehicles and propulsion systems being pursued by the U.S. Air Force. In this regard, titanium matrix composites (TMC's) appear to offer unique advantages in terms of a variety of weight-specific properties at high temperatures. However, a key requirement for eventual structural use of these materials is a balance of mechanical properties that can be suitably exploited by aircraft and engine designers without compromising reliability. An overview of the current capability of titanium matrix composites is presented, with an effort to assess the balance of properties offered by this class of materials. Emphasis is given to life-limiting cyclic and monotonic properties and the roles of high-temperature, time-dependent deformation and environmental effects. An attempt is made to assess the limitations of currently available titanium matrix composites with respect to application needs and to suggest avenues for improvements in key properties.
Possibilities and pitfalls in aerospace applications of titanium matrix composites
Chancen und Schwächen bei Luft-/Raumfahrt-Anwendungen von Verbundwerkstoffen mit Titanmatrix
1993
21 Seiten, 22 Bilder, 1 Tabelle, 45 Quellen
Aufsatz (Konferenz)
Englisch
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