We report on the damping properties of NiTi/Pb(Zr0.52Ti0.48)O-3 (PZT) heterostructures using nanoindentation technique. Creep and impact tests were performed to obtain hardness (H), elastic modulus (E-r), damping factor (tan delta) and figure of merit (FOM. A hold time of 30 s during creep test shows significant improvement in damping factor for NiTi/PZT (0.046) and CrTiN/NiTi/PZT (0.050). Impact test demonstrates highest damping capacity with lowest coefficient of restitution (0.30) in CrTiN/NiTi/PZT. Higher hardness (19.8 GPa) and excellent figure of merit (0.751) in CrTiN/NiTi/PZT makes them very attractive damping material for microelectromechanical systems (MEMS). (C) 2012 Elsevier B.V. All rights reserved.
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Univ Illinois, Beckman Inst, Dept Mat Sci & Engn, Seitz Mat Res Lab, Urbana, IL 61801 USAUniv Illinois, Beckman Inst, Dept Mat Sci & Engn, Seitz Mat Res Lab, Urbana, IL 61801 USA
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Penn State Univ, Mat Sci & Engn Dept, Millennium Sci Complex, University Pk, PA 16802 USA
Penn State Univ, Mat Res Inst, Millennium Sci Complex, University Pk, PA 16802 USAPenn State Univ, Mat Sci & Engn Dept, Millennium Sci Complex, University Pk, PA 16802 USA
Coleman, K.
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Walker, J.
Beechem, T.
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Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USAPenn State Univ, Mat Sci & Engn Dept, Millennium Sci Complex, University Pk, PA 16802 USA
Beechem, T.
Trolier-McKinstry, S.
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Penn State Univ, Mat Sci & Engn Dept, Millennium Sci Complex, University Pk, PA 16802 USA
Penn State Univ, Mat Res Inst, Millennium Sci Complex, University Pk, PA 16802 USAPenn State Univ, Mat Sci & Engn Dept, Millennium Sci Complex, University Pk, PA 16802 USA
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Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USAPenn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
Rajashekhar, Adarsh
Fox, Austin
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Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USAPenn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
Fox, Austin
Bharadwaja, S. S. N.
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Penn State Univ, Mat Res Inst, University Pk, PA 16802 USAPenn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
Bharadwaja, S. S. N.
Trolier-McKinstry, Susan
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Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
Penn State Univ, Mat Res Inst, University Pk, PA 16802 USAPenn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA