ISSN:
1573-2711
Keywords:
tribochemical activation
;
ferrites
;
Mössbauer spectroscopy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A comparative tribochemical study of zinc ferrite synthesis from γ-FeOOH + 2ZnCO3·3Zn(OH)2 and α-FeOOH + 2ZnCO3·3Zn(OH)2 was carried out. It was found that the end product of tribochemical activation is thermally unstable, partially inverse, zinc ferrite, (Zn0.74Fe0.26)tetra[Fe1.74Zn0.26]octaO4. The synthesis kinetics is rate-limited by the tribochemical dehydration of the two polymorphous forms of Fe(III) oxyhydroxides and is considerably higher for the γ-FeOOH + 2ZnCU3 · 3Zn(OH)2 system.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00156913
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