کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1567348 | 1514239 | 2010 | 6 صفحه PDF | دانلود رایگان |
Previous extensive studies of the δ → α′-phase transformation induced by temperature and/or by pressure in δ-stabilized plutonium alloys indicate strong dependence on parameters such as solute type, solute distribution, chemical impurities, kinetics, thermodynamic path….The present paper reports results obtained on two Pu–2.3at.%Ga binary alloys differing by solute homogenization treatment and studied under pressure by in situ by X-ray diffraction in diamond anvil cells. The γ′-phase appears as an intermediate phase during the δ → α′-phase transformation. In cored samples, unexpanded α′-phase is formed at the beginning of the transformation, from domains with low solute content, and expanded α′-phase subsequently forms (from domains with higher solute content) as the transformation progresses with the pressure increase.
Journal: Journal of Nuclear Materials - Volume 397, Issues 1–3, February 2010, Pages 74–79