Journal article
Effect of Neutron Irradiation on Select MAX Phases
Transactions of the American Nuclear Society, Vol.109(1), pp.580-583
14 Nov 2013
Abstract
Gen IV nuclear reactor designs require materials that can withstand long term operation in extreme environments of elevated temperatures, corrosive media, and fast neutron fluences (E>1MeV) with up to 100 displacements per atom (dpa) [1]. Full understanding of irradiation response is paramount to long-term, reliable service. The M sub(n+1)AX sub(n) (MAX) phases are a class of layered, machinable, transition ternary metal carbides and/or nitrides, where M is an early transition metal, A is a group 13 to 16 elements, and X is C and/or N. These compounds possess a unique set of properties both metallic and ceramic in nature. They exhibit relatively high fracture toughness values (8-12 MPa[radical]m) and are elastically stiff like their binary carbide and nitride counterparts, and yet are machinable, lightweight, and relatively soft [2-7]. The MAX phases also undergo plastic-to-brittle transition at high temperatures, and the material can withstand very high stresses in compression at room temperature [2, 7].
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Details
- Title
- Effect of Neutron Irradiation on Select MAX Phases
- Creators
- Darin TallmanElizabeth HoffmanEl'ad CaspiGordon KohseRobert SindelarMichel BarsounMichel W Barsoum - Materials Science and Engineering
- Publication Details
- Transactions of the American Nuclear Society, Vol.109(1), pp.580-583
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Identifiers
- 991019173851104721