RAPID SYNTHESIS AND CONSOLIDATION OF NANOSTRUCTURED MgAl2O4 COMPOUND BY PULSED CURRENT ACTIVATED SINTERING AND ITS MECHANICAL PROPERTIES

Nanopowders of Al2O3 and MgO were fabricated by high energy ball milling. The rapid synthesis and sintering of nanostructured MgAl2O4 compound were investigated by the pulsed current activated sintering process. The advantage of this process is that it allows very quick densification to near theoret...

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Bibliographic Details
Published inJournal of Ceramic Processing Research Vol. 14; no. 1; pp. 65 - 69
Main Authors Kwak, S-M, Park, H-K, Doh, J-M, Yoon, J-K, Lee, S-J, Shon, I-J
Format Journal Article
LanguageEnglish
Published 세라믹연구소 01.02.2013
Subjects
Activated sintering
Grain size
Magnesium oxide
Mechanical properties
Nanostructure
Pulsed current
Sintering
Synthesis
재료공학
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Summary:Nanopowders of Al2O3 and MgO were fabricated by high energy ball milling. The rapid synthesis and sintering of nanostructured MgAl2O4 compound were investigated by the pulsed current activated sintering process. The advantage of this process is that it allows very quick densification to near theoretical density and inhibition of grain growth. A highly dense nanostructured MgAl2O4 compound was produced with the simultaneous application of 80 MPa pressure and a pulsed current of 2800 A within 2 min. The grain sizes and mechanical properties of MgAl2O4 sintered at 1320 C were investigated.
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ISSN:1229-9162
2672-152X