Composite materials for Tokamak wall armor, limiters, and beam dump applications [electronic resource].
- Los Alamos, N.M. : Los Alamos Scientific Laboratory, 1979. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 6 : digital, PDF file
- Additional Creators:
- Los Alamos Scientific Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- This paper describes materials which are composites of carbon fibers and low Z number carbides. The composite materials are fabricated by applying chemical vapor deposition (CVD) coats of either low Z number elements (i.e., boron, titanium, silicon, or nickel) or carbides (B/sub 4/C, TiC, or SiC) onto graphite fibers, in the form of yarn, cloth, or three-dimensional structures, and then hot pressing the coated material to full density. The benefits of this approach are: (1) Each graphite filament (approx. 9 ..mu..m diameter) is surrounded by a refractory carbide which offers better resistance to erosion loss than graphite. If some material is spalled from the surface, the underlying graphite fibers are still coated, and thus still protected from hydrogen bombardment; (2) The composites should have longer thermal fatigue lives than carbides because of the graphite fiber reinforcement running through the composite; (3) Enhanced mechanical properties are obtained because of completely interconnected networks of carbide and graphite.
- Published through SciTech Connect., 01/01/1979., "la-ur-79-17", " conf-790125-2", 1. topical meeting on fusion reactor materials, Miami Beach, FL, USA, 29 Jan 1979., and Riley, R.E.; Dickinson, J.M.; Wallace, T.C.
- Funding Information:
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