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http://dx.doi.org/10.3365/KJMM.2011.49.8.614

Mechanical Properties and Fabrication of Nanostructured Mg2SiO4-MgAl2O4 Composites by High-Frequency Induction Heated Combustion  

Shon, In-Jin (Division of Advanced Materials Engineering and the Research Center of Advanced Materials Development, Engineering College, Chonbuk National University)
Kang, Hyun-Su (Division of Advanced Materials Engineering and the Research Center of Advanced Materials Development, Engineering College, Chonbuk National University)
Hong, Kyung-Tae (Advanced Functional Materials Research Center, Korea Institute of Science and Technology)
Doh, Jung-Mann (Advanced Functional Materials Research Center, Korea Institute of Science and Technology)
Yoon, Jin-Kook (Advanced Functional Materials Research Center, Korea Institute of Science and Technology)
Publication Information
Korean Journal of Metals and Materials / v.49, no.8, 2011 , pp. 614-618 More about this Journal
Abstract
Nanopowders of MgO, $Al_2O_3$ and $SiO_2$ were made by high energy ball milling. The rapid sintering of nanostructured $MgAl_2O_4-Mg_2SiO_4$ composites was investigated by a high-frequency induction heating sintering process. The advantage of this process is that it allows very quick densification to near theoretical density and inhibition of grain growth. Nanocrystalline materials have received much attention as advanced engineering materials with improved physical and mechanical properties. As nanomaterials possess high strength, high hardness, excellent ductility and toughness, undoubtedly, more attention has been paid for the application of nanomaterials. Highly dense nanostructured $MgAl_2O_4-Mg_2SiO_4$ composites were produced with simultaneous application of 80MPa pressure and induced output current of total power capacity (15 kW) within 2min. The sintering behavior, gain size and mechanical properties of $MgAl_2O_4-Mg_2SiO_4$ composites were investigated.
Keywords
composite; nanostructure; high-frequency induction heated combustion; $Mg_2SiO_4$; mechanical properties;
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