Ultrasound effects on metallic (Fe and Cr); iron sesquioxides (α-,γ-Fe 2O 3); calcite; copper, lead and manganese oxides as powders

Different kind of materials, as powders, were submitted to ultrasound after mixing in water, dodecane or dilute acetic acid (5%). After treatment, firstly a decrease of particle size, and secondly the formation of unexpected and unknown compounds was observed on a mesoscopic scale (CaO from CaCO 3 f...

Full description

Saved in:
Bibliographic Details
Published inUltrasonics sonochemistry Vol. 7; no. 1; pp. 25 - 33
Main Authors Gasgnier, M, Beaury, L, Derouet, J
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 2000
Subjects
Crystallography
Granulometry
Heterogeneous sonochemistry
Magnetic susceptibility
Ultrasound
Heterogeneous sonochemistry
Crystallography
Ultrasound
Granulometry
Magnetic susceptibility
Online AccessGet full text

Cover

More Information
Summary:Different kind of materials, as powders, were submitted to ultrasound after mixing in water, dodecane or dilute acetic acid (5%). After treatment, firstly a decrease of particle size, and secondly the formation of unexpected and unknown compounds was observed on a mesoscopic scale (CaO from CaCO 3 for example). For iron and iron oxides, it was found that the magnetic properties (susceptibility and effective magnetic moment) were changed slightly. A shift in the Morin temperature transition for α-Fe 2O 3 was attributed to the formation of impurities. For inorganic oxides (Cu 2O, PbO, Pb 3O 4 and Mn 3O 4) sonicated in dilute acetic acid, the formation of metallic acetates is easily achieved and it is rapid (10 s for PbO).
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1350-4177
1873-2828
DOI:10.1016/S1350-4177(99)00024-3