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A STUDY ON THE SYNTHESIS OF ULTRA-FINEIN SITUNi3Al–Al2O3/TiCCOMPOSITE POWDER

Author

Listed:
  • DONG-WOONG KIM

    (School of Nano and Advanced Materials Engineering, I-Cube Center, K-MEM R&D Cluster, Gyeongsang National University, 900 Gazwa-Dong, Jinju 600-701, South Korea)

  • SUNG-HYUN CHOI

    (School of Nano and Advanced Materials Engineering, I-Cube Center, K-MEM R&D Cluster, Gyeongsang National University, 900 Gazwa-Dong, Jinju 600-701, South Korea)

  • KYOUNG-ROK DO

    (School of Nano and Advanced Materials Engineering, I-Cube Center, K-MEM R&D Cluster, Gyeongsang National University, 900 Gazwa-Dong, Jinju 600-701, South Korea)

  • SU-GUN LIM

    (School of Nano and Advanced Materials Engineering, I-Cube Center, K-MEM R&D Cluster, Gyeongsang National University, 900 Gazwa-Dong, Jinju 600-701, South Korea)

  • IN-SHUP AHN

    (School of Nano and Advanced Materials Engineering, I-Cube Center, K-MEM R&D Cluster, Gyeongsang National University, 900 Gazwa-Dong, Jinju 600-701, South Korea)

Abstract

Titanium carbide (TiC) has a low density, relatively high thermal and electrical conductivity.TiCis also very stable, with a melting temperature of 3100°C and does not undergo phase transformations. These properties have attraction to apply cutting tool extensively. Recently, in order to improve the properties of cermet tool materials, most researches have been carried out on the development of new binder.Ni3Alintermetallic is an interesting material because it has a great advantage of application for some structural materials, especially at the high temperatures.Ni3Alhas low density, high strength and good corrosion resistance properties, which recommend them for the application of high temperature structural material. In this study, we had investigated the effects of mechanical alloying time and annealing temperature on theNi3Al–Al2O3/TiCphase formation. Raw powders to fabricateNi3Al–Al2O3/TiCcomposite powders wereNi,Al,TiH2and activated carbon. These powders were ball-milled in planetary milling jar in argon atmosphere. Ball-milled powders were annealed up to 1200°C inAr + 4%H2atmosphere. The mean particle size of 300 nm was obtained after 10 h ball-milling.Ni3Al–Al2O3/TiCcomposite powders were formed by annealing for 1 h over 1100°C.

Suggested Citation

  • Dong-Woong Kim & Sung-Hyun Choi & Kyoung-Rok Do & Su-Gun Lim & In-Shup Ahn, 2010. "A STUDY ON THE SYNTHESIS OF ULTRA-FINEIN SITUNi3Al–Al2O3/TiCCOMPOSITE POWDER," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 17(02), pages 195-200.
    • Handle: RePEc:wsi:srlxxx:v:17:y:2010:i:02:n:s0218625x10013746
    DOI: 10.1142/S0218625X10013746
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