NTIS price codes'! Printed copy: Microfiche copy: A03 ••Codes are used for pricing all publications. The code is determined by the number of pages in the publication. Information pertaining to the pricing codes can be found in the current issues of the following publications, which are generally available in most libraries: Energy Research Abstracts (ERA), Government Reports Announcements and Index
Comparison to Monolithic Niobium AlloysFuture Appl i cat i ons Extrapolation o f Fiber Stress-Ruoture Data Advanced materials will play a major role in meeting the stringent weight, size, and performance requirements of future space power systems. include a service life of greater than 7 years at a temperature inThe requirements for such a system, whicn may excess o f 1350 K, in addition to resistance t o liquid metal corrosion, dictate the use of refractory metals. The niobium--1% zirconium (Nb-1Zr) allay has been suggested for use in such space 8
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