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  1. No Access

    Article

    Effects of reducing and oxidizing atmospheres on the PTCR characteristics of porous n-BaTiO3 ceramics by adding polyethylene glycol

    Donor doped BaTiO3 (n-BaTiO3) ceramics were fabricated by adding polyethylene glycol (PEG) at 20 wt %. The effects of reducing and oxidizing atmospheres on the PTCR characteristics of the porous n-BaTiO3 ceramics...

    J.-G. Kim, W.-P. Tai, Y.-J. Kwon, K.-J. Lee… in Journal of Materials Science: Materials in… (2004)

  2. No Access

    Article

    Sintering condition and PTCR characteristics of porous (Ba,Sr)(Ti,Sb)O3

    We fabricated porous (Ba,Sr)(Ti,Sb)O3 ceramics by adding potato-starch (1–20 wt %) and investigated the effects of sintering temperature (1300–1450 °C) and time (0.5–10 h) on the positive temperature coefficient ...

    J.-G. Kim, W.-P. Tai, J.-M. Lee, J.-G. Ha… in Journal of Materials Science: Materials in… (2004)

  3. No Access

    Article

    Fabrication and mechanical properties of α-Al2O3/β-Al2O3/Al/Si composites by liquid displacement reaction

    Al2O3/metal composites were fabricated by heating three kinds of commercial mullite refractories in contact with Al, and their mechanical properties were investigated. Aluminum reacted with the mullite and SiO2-g...

    T. Watari, T. Torikai, W.-P. Tai, O. Matsuda in Journal of Materials Science (2000)

  4. No Access

    Article

    Preparation and mechanical properties of Al2O3 reinforced by submicrometer Co particles

    Al2O3/Co composites were fabricated by vacuum hot-pressing a mixture of α-Al2O3 powder and a fine cobalt powder. Submicron-sized cobalt particles were uniformly dispersed into the Al2O3 matrix, and the dispers...

    W. P. Tai, T. Watanabe in Journal of Materials Science (1998)