Search Results - "RINGGAARD, E"

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    Fabrication, modelling and use of porous ceramics for ultrasonic transducer applications by LEVASSORT, F, HOLC, J, RINGGAARD, E, BOVE, T, KOSEC, M, LETHIECQ, M

    Published in Journal of electroceramics (01-09-2007)
    “…Issue Title: Special Issue on Advances in Piezoelectrics: Fundamentals, Characterization, Materials and Applications, Guest Editor: Dragan Damjanovic Porous…”
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    Journal Article
  3. 3

    Liquid-phase sintering of PZT ceramics by Corker, D.L, Whatmore, R.W, Ringgaard, E, Wolny, W.W

    Published in Journal of the European Ceramic Society (01-11-2000)
    “…Lead zirconate titanate (abbreviated as PZT) ceramics are of considerable commercial importance for a host of piezoelectric and pyroelectric applications…”
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    Journal Article
  4. 4

    Screen-printed piezoceramic thick films for miniaturised devices by LOU-MOELLER, R, HINDRICHSEN, C. C, THAMDRUP, L. H, BOVE, T, RINGGAARD, E, PEDERSEN, A. F, THOMSEN, E. V

    Published in Journal of electroceramics (01-12-2007)
    “…Issue Title: Special Issue on Piezoelectric for End Users II, Guest Editors: Robert Dorey and Sophie A. Rocks The development towards smaller devices with more…”
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    Conference Proceeding Journal Article
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    High performance thin film PZT ultrasonic transducer by CSD for distance measurements in water by Heinonen, E., Juuti, J., Palosaari, J., Tyholdt, F., Jantunen, H., Østbø, N. P., Vogl, A., Poppe, E., Guðbjörnsson, S., Ringgaard, E., Hök, B., Fägerman, P.-E., Gløersen, P., Ræder, H.

    Published in Journal of electroceramics (01-08-2011)
    “…Piezoelectric thin film ultrasonic transducers were realised and tested for short range distance measurements. Displacements in air and water as a function of…”
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    Journal Article
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    Thermal diffusivity by laser intensity modulation method (LIMM-TD): a novel technique for the determination of thermal diffusivities and conductivities and its application to porous PZT and silica samples by Lang, S.B., Ringgaard, E., Muensit, S., Xiaoqing Wu, Lashley, J.C., Yuen-Wah Wong

    “…A modification of a technique for the measurement of the thermal diffusivity of thin solid materials is presented. The technique is called thermal diffusivity…”
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    Journal Article Conference Proceeding
  7. 7

    Lead-free piezoceramics based on alkali niobates by Ringgaard, Erling, Wurlitzer, Thom

    “…The market for piezoceramic components is dominated by lead-based PZT materials containing more than 60 wt.% lead. Since lead is a toxic heavy metal, it has…”
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    Journal Article Conference Proceeding
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    Microstructure and temperature dependence of properties of morphotropic phase boundary Bi(Mg1/2Ti1/2)O3-PbTiO3 piezoceramics processed by conventional routes by Moure, Alberto, Algueró, Miguel, Pardo, Lorena, Ringgaard, Erling, Pedersen, Annette F.

    Published in Journal of the European Ceramic Society (01-01-2007)
    “…Ceramics in the (1-x)Bi(Mg1/2Ti1/2)O3-(x)PbTiO3 system with x = 0.3,0.40 and 0.42 were processed by conventional sintering from ceramic powders synthesised by…”
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    Journal Article
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    Domain structure sequence in ferroelectric Pb ( Zr 0.2 Ti 0.8 ) O 3 thin film on MgO by Janolin, Pierre-Eymeric, Fraisse, Bernard, Dkhil, Brahim, Le Marrec, Françoise, Ringgaard, Erling

    Published in Applied physics letters (19-04-2007)
    “…The structural evolution of a polydomain ferroelectric Pb ( Zr 0.2 Ti 0.8 ) O 3 film was studied by temperature-dependent x-ray diffraction. Two critical…”
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    Journal Article
  10. 10

    Integrated transducers for marine animal tags using thick film PZT by Lou-Mo/ller, Rasmus, Ringgaard, Erling, Zawada, Tomasz, Gudbjoernsson, Sigmar, Hilmarsson, Haraldur

    “…The technology of printing PZT ceramic layers onto curved substrates using pad printing is demonstrated by the application of a transmitter/receiver system…”
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    Journal Article
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    New piezoceramic PZT–PNN material for medical diagnostics applications by Bove, Torsten, Wolny, Wanda, Ringgaard, Erling, Pedersen, Annette

    “…The development of a new piezoceramic material, Ferroperm Pz21, optimised for use in medical diagnostics applications is described. The requirements to such a…”
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    Journal Article Conference Proceeding
  12. 12

    Properties of Lead-Free Piezoceramics Based on Alkali Niobates by Ringgaard, Erling, Wurlitzer, Thom, Wolny, Wanda W.

    Published in Ferroelectrics (01-07-2005)
    “…The market for piezoceramic components is dominated by lead zirconate titanate (PZT) materials containing more than 60 wt% lead. Since lead is a toxic heavy…”
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    Journal Article Conference Proceeding
  13. 13

    A complete range of tape-cast piezoelectric thick films for high frequency ultrasonic transducers by Levassort, F., Bove, T., Ringgaard, E., Tran-Huu-Hue, L.P., Holc, J., Lethiecq, M.

    “…Tape casting technology has been used to produce stand-alone thick films (i.e. 65 to 200 micrometers) of piezoceramics with net final shape for high frequency…”
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    Conference Proceeding
  14. 14

    Comparative performances of new KNN lead-free piezoelectric materials and classical lead-based ceramics for ultrasonic transducer applications by Feuillard, G., Loyau, V., Tran Huu Hue, L.P., Wurlitzer, T., Ringgaard, E., Wolny, W., Malic, B., Kosec, M., Barzegar, A., Damjanovic, D., Lethiecq, M.

    “…The purpose of this paper is to present the comparative study of a single-element transducer based on KNN and on lead-based ceramics. A thickness coupling…”
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    Conference Proceeding
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    Liquid-phase sintering of Pb(Zr,Ti)O 3 using PbO–WO 3 additive by Nielsen, E.R., Ringgaard, E., Kosec, M.

    “…The objective of this work was to lower the sintering temperature of lead zirconate titanate (PZT) without reducing the piezoelectric performance. PZT was…”
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    Journal Article
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    A Novel Technique for the Determination of Thermal Diffusivities and Conductivities and its Application to Porous PZT Samples by Lang, S.B., Ringgaard, E.

    “…A modification of a technique for the measurement of the thermal diffusivity of thin solid materials is presented. It is based on the measurement of the phase…”
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    Conference Proceeding
  17. 17

    Characterisation of thin layers of parylene at high frequency using PZT thick film resonators by Levassort, Franck, Tran-Huu-Hue, Louis-Pascal, Marechal, Pierre, Ringgaard, Erling, Lethiecq, Marc

    “…High frequency electrical impedance measurements on PZT thick film structures were used to characterise thin layers of parylene for acoustic matching…”
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    Journal Article Conference Proceeding
  18. 18

    Optimisation of new liquid-phase sintering aid for PZT by Ringgaard, E., Nielsen, E.R., Wolny, W.W.

    “…A new sintering aid designed for a commercial type I PZT (lead zirconate titanate) allows sintering at temperatures as low as 800/spl deg/C. The additive…”
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    Conference Proceeding
  19. 19

    Measurements of the thermal, dielectric, piezoelectric, pyroelectric and elastic properties of porous PZT samples by Lang, S.B., Ringgaard, E.

    “…The introduction of porosity into ferroelectric ceramics has been of great interest in recent years. In particular, studies of porous lead-zirconate-titanate…”
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    Conference Proceeding
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    New type of piezoelectric transformer with very high power density by Bove, T., Wolny, W., Ringgaard, E., Breboel, K.

    “…A new innovative multilayer PT design for operation with high power density and frequencies up to several MHz is presented. The design is based on a…”
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    Conference Proceeding