Influence of Oxygen Contamination on the Pd-Si Solid-State Reactions Activated by Mechanical Alloying

The influence of oxygen contamination on the solid-state reaction (SSR), induced by ball milling, between palladium and silicon, has been investigated by X-ray diffraction and surface analysis. X-ray analysis reveals that approx 1 wt.% of O is able to inhibit the SSR between Pd and Si, while at high...

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Bibliographic Details
Published inChemistry of materials Vol. 6; no. 7; pp. 983 - 989
Main Authors Magini, M, Padella, F, Delogu, P, Makris, T. Dikonimos, Turtu, S
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 01.07.1994
Subjects
Applied sciences
Exact sciences and technology
Metal powders
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
Palladium base alloys
Ball mill
Silicon alloy
X ray
XRD
Surface analysis
Experimental study
Powder metallurgy
Mechanical alloying
Contamination
Transition metal alloy
DSC
Solid state reaction
Photoelectron spectrometry
Oxidation
Binary alloy
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Summary:The influence of oxygen contamination on the solid-state reaction (SSR), induced by ball milling, between palladium and silicon, has been investigated by X-ray diffraction and surface analysis. X-ray analysis reveals that approx 1 wt.% of O is able to inhibit the SSR between Pd and Si, while at higher O content already formed phases are destabilized. The picture emerging from photoemission spectra in connection with X-ray analysis indicates that Si is bonded both to Pd and O at the surface of Pd particles with an increasing Si enrichment with increasing O contamination.
Bibliography:istex:7C2B903CB2CCB5B67BB09E3FDE6AB4392C44C3ED
ark:/67375/TPS-L80NR4SN-L
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0897-4756
1520-5002
DOI:10.1021/cm00043a021