2017
DOI: 10.15587/1729-4061.2017.119498
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A study of environmentally safe obtaining of molybdenum-based alloying material by solid phase extraction

Abstract: Визначено кінетичні закономірності вуглецевотермічного відновлення оксидного молібденового концентрату в інтервалі 873-1473 K. Найвищий ступінь відновлення 97 % досягнуто після обробки при 1373 K із переважанням у фазовому складі Mo. Мікроструктурагубчаста розупорядкована. Поліпшення екологічної безпеки досягається заміною вуглецевосиліко-та алюмотермічної плавок феросплавного виробництва Mo на новітні методи порошкової металургії Ключові слова: молібденовий концентрат, вуглецевотермічне відновлення, металізац… Show more

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“…Researchers working in this field did not find a common ground on this issue: hypotheses are being discussed such as local melting of materials in the transition zone with their subsequent mixing; severe plastic deformation of the boundary layers; the formation of new phases, etc. Apparently, the lack of consensus on structural changes in the transition zone is associated with the physical and mechanical properties of the materials being joined, their dimensions (thickness) and processing parameters [2][3][4].…”
Section: Introductionmentioning
confidence: 99%
“…Researchers working in this field did not find a common ground on this issue: hypotheses are being discussed such as local melting of materials in the transition zone with their subsequent mixing; severe plastic deformation of the boundary layers; the formation of new phases, etc. Apparently, the lack of consensus on structural changes in the transition zone is associated with the physical and mechanical properties of the materials being joined, their dimensions (thickness) and processing parameters [2][3][4].…”
Section: Introductionmentioning
confidence: 99%