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  1. No Access

    Article

    Electromechanical and ferroelectric properties of (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3- (Bi1/2Li1/2)TiO3-BaTiO3 lead-free piezoelectric ceramics for accelerometer application

    Lead-free (0.90-x)(Bi1/2Na1/2)TiO3-0.05(Bi1/2K1/2)TiO3-x(Bi1/2Li1/2)TiO3-0.05BaTiO3 piezoelectric ceramics (abbreviated as BNKLBT-100x, with x ranged from 0 to 2.5 mol %) were prepared by a conventional mixed oxi...

    S.H. Choy, X.X. Wang, H.L.W. Chan, C.L. Choy in Applied Physics A (2007)

  2. No Access

    Article

    0.90(Bi1/2Na1/2)TiO3–0.05(Bi1/2K1/2)TiO3– 0.05BaTiO3 transducer for ultrasonic wirebonding applications

    Lead-free piezoelectric ceramic 0.90(Bi1/2Na1/2)TiO3–0.05(Bi1/2K1/2)TiO3–0.05BaTiO3 (BNKBT-5) rings (OD=12.7 mm, ID=5.1 mm and 2.3-mm thick) were fabricated and characterized. Four ceramic rings were used as the ...

    S.H. Choy, X.X. Wang, C.P. Chong, H.L.W. Chan, P.C.K. Liu, C.L. Choy in Applied Physics A (2006)

  3. No Access

    Article

    Study of compressive type accelerometer based on lead-free BNKBT piezoceramics

    Lead-free piezoelectric 0.90(Bi1/2Na1/2)TiO3-0.05(Bi1/2K1/2)TiO3-0.05BaTiO3 ceramics(abbreviated as BNKBT-5) rings were fabricated using a conventional mixed oxide method. The ceramics have a piezoelectric consta...

    S.H. Choy, X.X. Wang, H.L.W. Chan, C.L. Choy in Applied Physics A (2006)

  4. No Access

    Article

    Effects of texture on the dielectric properties of Ba(Zr0.2Ti0.8)O3 thin films prepared by pulsed laser deposition

    Ba(Zr0.2Ti0.8)O3 (BZT) thin films were deposited on Pt(111)/Ti/SiO2/Si(100) substrates by a pulsed laser deposition process. The BZT thin films directly grown on annealed and un-annealed Pt/Ti/SiO2/Si substrates ...

    X.G. Tang, X.X. Wang, K.H. Wong, H.L.W. Chan in Applied Physics A (2005)

  5. No Access

    Article

    (Bi0.5Na0.5)0.94Ba0.06TiO3 lead-free ceramics with simultaneous addition of CeO2 and La2O3

    (Bi0.5Na0.5)0.94Ba0.06TiO3 (BNBT-6) with simultaneous addition of 0.5 mol% CeO2 and 0.25, 0.5 and 0.75 mol% La2O3, respectively, was prepared by a conventional ceramic fabrication technique. An addition of 0.5 mo...

    X.X. Wang, H.L.W. Chan, C.L. Choy in Applied Physics A (2005)

  6. No Access

    Article

    Effect of excess Bi2O3 on the electrical properties and microstructure of (Bi1/2Na1/2)TiO3 ceramics

    (Bi1/2Na1/2)TiO3 ceramics (BNT) with 0–6 mol % of excess Bi2O3 are prepared by conventional solid-state sintering. The electrical properties of the samples are examined. The addition of excess Bi2O3 reduces the l...

    X.X. Wang, X.G. Tang, K.W. Kwok, H.L.W. Chan, C.L. Choy in Applied Physics A (2005)