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[en] The light metal beryllium is a comparatively rare element, which today is primarily derived from bertrandite. It is mainly used as pure metal or in the form of copper-beryllium alloys, e.g., in automotive industry, aerospace, and electrical components. The wide range of applications is mainly attributed to the extremely high rigidity/density ratio. An overview of the history of the metal, its production, and recycling as well as the properties of CuBe alloys are given.
[en] The possibility of monitoring structure homogeneity has been studied by the method of Mössbauer spectroscopy with a resonance detector on the example of beryllium alloys, containing from 0.09 to 0.8 wt.% iron and other metallic impurities with a total amount of 0.04 to 0.14 wt.%. The quality of the obtained spectra description has been improved using methods which have a different degree of complexity and effectiveness.
[en] The observed splitting of the superconducting transition in U/sub 1-x/Th/sub x/Be13 is explained on the basis that with increasing temperature the thorium impurity initially disrupts the orientational long-range order characteristic of exotic superconductors ]G. E. Volovik and L. P. Gor'kov, Pis'ma Zh. Eksp. Teor. Fiz. 39, 550 (1984) [JETP Lett. 39, 550 (1984)]]. The superconducting state is destroyed during a second transition