Up Close: Materials Research at the Grenoble Nuclear Research Center of the French Atomic Energy Commission (CEA)
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• Metallurgy Department (DMG), • Electronic, Technology and Instrumentation Division (D.LETI), and • Research and Analytical Control Section (SRCA). This coexistence of basic and applied research and the complementary character of qualified teams equipped with modern experimental means constitutes part of the "materials expertise pool," which has been developed within the CEN-G. It takes advantage of the remarkable university and industrial scientific environment in Grenob|e. The CEN-G represents one of the main elements of the nationally important concentration of materials expertise in Grenoble. The following is a description of the goals, scope, current activities and scientific interaction of each of the four units. Basic Research (DRF) A great part of the basic materials studies carried out at the CEN-G are developed in the Basic Research Department (DRF). They mainly cover defects in metals and alloys, amorphous and quasicrystalline metals, metallic surfaces and interfaces, semiconductors, magnetic and superconductive materials, and electronic and ionic polymers.
Defects in Metals and Alloys; Amorphous This article is part of a series focusing on the research capabilities and goals of Metals; and Quasicrystals, Metallic Surinterdisciplinary laboratories pursuing materials research in universities, industry,faces and Interfaces and government. For a long time, the metallurgy and physics studies mainly concerned point defects and dislocations, and atomic mobility in pure metals and alloys. Understanding the role of defects and their Introduction tate the utilization of research results, the influence on atomic mobility is essential in Most great technological advances iniCEA launched research and development order to account for the properties of tially required finding a solution to materiprograms in different non-nuclear indusmetals. Basic data concerning the elemenals problems, a fact that is not very often tries where its research could find new aptary atomic mechanisms are obtained on recognized. The development of nuclear plications. high purity "prototype" materials which energy is no exception to this rule. The fuel Since its creation in 1955, the Grenoble are mainly produced in the DRF, where dein the reactor core, cladding of the fuel, Nuclear Research Center (CEN-G), one of fects are introduced in a controlled manner and structures which support the core or the five civilian centers of the CEA, has (irradiation, annealing, distortion). Iniwhich carry the coolant are, indeed, subconcentrated a great part of its research on tially, the principal materials studied were jected to extreme conditions of radiation basic (solid-state physics) and applied asiron, nickel, aluminum, copper, and more flux, temperature, pressure, and corropects (nuclear metallurgy). This double recently tantalum, magnesium, and also sion. In order to achieve safe, industrial reorientation, in which basic research is used alloys, superalloys, and austenitic steels of actors, the French Atomic Energy as a basis for applied researc
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