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- Westerberg, Lars, et al.
(författare)
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Hydrogen content and outgassing of air-baked and vacuum-fired stainless steel
- 1997
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Ingår i: VACUUM. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0042-207X. ; 48:7-9, s. 771-773
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The hydrogen content of stainless steel samples, treated by 400 degrees C heat treatment for 2, 4, 8, 16 and 24 h in ambient air, was determined by the H-1(N-15,alpha gamma)C-12 nuclear resonance reaction, and a standard extraction method Two reference sa
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- Thorarinsdottir, K. A., et al.
(författare)
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Finding order in disorder : Magnetic coupling distributions and competing anisotropies in an amorphous metal alloy
- 2022
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Ingår i: APL Materials. - : American Institute of Physics (AIP). - 2166-532X. ; 10:4
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Tidskriftsartikel (refereegranskat)abstract
- Amorphous metals have unusual magnetic properties that arise due to the disordered atomic arrangement. We show that Co-x(Al70Zr30)(100-x) (65 < x < 92 at.%) amorphous alloys have a distribution in the local magnetic coupling and ordering temperature, which can be explained by nanoscale composition variations. We use competing anisotropies induced by the substrate and an applied field during growth to probe the Co concentration distribution. Only regions with high enough Co concentration develop a magnetic anisotropy along the magnetic field during growth, whereas regions of low Co concentration have an anisotropy dictated by the substrate. A Gaussian distribution in the Co concentration of width 5.1 at.% is obtained from the variation in anisotropy. The results demonstrate the importance of composition variations for emergent magnetic properties and have far reaching implications for the properties of disordered materials in general.
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