- Fabrication of 4.25 Co0.53Fe0.47-Al2O3 Composite by High Frequency Induction Heated Combustion Synthesis
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Na-Ra Park, Hoon NamKung, In-Yong Ko, In-Jin Shon
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J Korean Powder Metall Inst. 2009;16(2):91-97.
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DOI: https://doi.org/10.4150/KPMI.2009.16.2.091
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 Abstract
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- Nanopowders of Co_3O_4 and FeAl were fabricated by high energy ball milling. Dense 4.25 Co_0.53Fe_0.47-Al_2O_3 composite was simultaneously synthesized and consolidated by high frequency induction heated combustion method within 2 min from mechanically activated powders. Consolidation was accomplished under the combined effects of a induced current and mechanical pressure of 80 MPa.
- Mechanical Properties and Fabrication of Nanostructured 2MoSi2-SiC by Pulsed Current Activated Combustion Synthesis
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In-Jin Shon, Dong-Ki Kim, In-Kyoon Jeong, Jung-Mann Doh, Jin-Kook Yoon, In-Yong Ko
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J Korean Powder Metall Inst. 2007;14(4):245-250.
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DOI: https://doi.org/10.4150/KPMI.2007.14.4.245
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Abstract
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- Dense nanostructured 2MoSi_2-SiC composites were synthesized by the pulsed current activated combustion synthesis (PCACS) method within 3 minutes in one step from mechanically activated powders of Mo_2C and 5Si. Simultaneous combustion synthesis and densification were accomplished under the combined effects of a pulsed current and mechanical pressure. Highly dense 2MoSi_2-SiC with relative density of up to 96% was produced under simultaneous application of a 60 MPa pressure and the pulsed current. The average grain size of MoSi_2 and SiC were about 120 nm and 90 nm, respectively. The hardness and fracture toughness values obtained were 1350 kg/mm2 and 4 MPacdotm1/2, respectively.
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