방전플라즈마 소결법으로 제작한 β-FeSi2 소결체의 고온 내산화성

장세훈; 홍지민; 오익현; Se-Hun Chang; Ji-Min Hong; IK-Hyun Oh

Korean Journal of Materials Research, Vol.17, No.3, 132-136, March, 2007

DOI10.3740/MRSK.2007.17.3.132 Export Citation

방전플라즈마 소결법으로 제작한 β-FeSi2 소결체의 고온 내산화성

idation Resistance of SPS (Spark Plasma Sintering) Sintered β-FeSi2Bodies at High Temperature

장세훈, 홍지민, 오익현^†

한국생산기술연구원 광주연구센터

Se-Hun Chang, Ji-Min Hong, and IK-Hyun Oh^†

Gwangju Research Center, Korea Institute of Industrial Technology (KITECH), Gwangju, 506-824, Korea

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Oxidation resistance of sintered was investigated at intermediate temperature range in air atmosphere. Fully dense and porous bodies of samples were fabricated by using the Spark Plasma Sintering (SPS). They were annealed at for 5days to obtain phase. The bulk samples were oxidized at in air atmosphere. The high temperature oxidation tests reveal that amorphous layer, similar to Si was formed and grew parabolically on . Accelerated oxidation is not observed as well as cracks and grain boundary oxidation. Granular was developed below the oxide layer as a result of oxidation of . Oxidation resistance of sintered was excellent for high-temperature thermoelectric application.

Keywords:Spark Plasma Sintering;Oxidation resistant

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[10] Deal BE, Grove AS, J. Appl. Phys., 36, 3770 (1965)