Four PdSi compositions (Pd2.5Si, Pd3Si, Pd4Si and Pd5Si) have been processed by mechanical alloying. After the early milling stages, consisting of very fine fragmentation of the silicon particles into a palladium matrix, the compositions Pd2.5Si, Pd3Si, and Pd4Si can nucleate intermetallic Pd3Si depending on the milling conditions and/or milling apparatus. Subsequent milling seems to promote amorphization, probably starting from the previously formed Pd3Si compound. A demixing process, for the Pd2.5Si and Pd4Si compositions, is observed after long milling times and is explained by oxygen pickup during milling. © 1991.
Mechanical alloying of the PdSi system. Investigation of the early and late milling stages
Burgio N.Writing – Original Draft Preparation
;Padella F.Writing – Original Draft Preparation
;
1991-01-01
Abstract
Four PdSi compositions (Pd2.5Si, Pd3Si, Pd4Si and Pd5Si) have been processed by mechanical alloying. After the early milling stages, consisting of very fine fragmentation of the silicon particles into a palladium matrix, the compositions Pd2.5Si, Pd3Si, and Pd4Si can nucleate intermetallic Pd3Si depending on the milling conditions and/or milling apparatus. Subsequent milling seems to promote amorphization, probably starting from the previously formed Pd3Si compound. A demixing process, for the Pd2.5Si and Pd4Si compositions, is observed after long milling times and is explained by oxygen pickup during milling. © 1991.File in questo prodotto:
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