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AbstractAbstract
[en] The helium release from gold sheets of 5 and 54 μm of thickness and helium concentrations from 10-9 to 10-5 ap of He during the isothermal and linear annealing is studied. The helium was put in the sample through the implantation of alpha particles, with variable energy,in the cyclotron. The free diffusion of the atoms of the helium, where the diffusion coefficient follows an Arrhenius law is studied. (E.G.)
[pt]
Estuda-se a liberacao de Helio de folhas de Ouro de espessuras entre 5 e 54 μm e concentracoes de Helio de 10-9 a 10-5 partes atomicas de Helio durante recozimentos isotermicos e lineares. O Helio foi introduzido homogeneamente nas amostras pela implantacao de particulas alfa, de energia variavel, em ciclotron. Observou-se a difusao livre de atomos de Helio, onde o coeficiente de difusao obedece a uma lei do tipo Arrhenius. (Autor)Original Title
A liberacao de helio de metais de estrutura cubica de faces centradas
Source
Pontificia Univ. Catolica do Rio de Janeiro (Brazil); 399 p; 1984; p. 194-197; 6. Brazilian Congress on Engineering and Materials Science; Rio de Janeiro, RJ (Brazil); 9-12 Dec 1984
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