Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Matthias C. Ehmke"'
Publikováno v:
Applied Physics Letters. 119:022904
Understanding the temperature dependence of how ferroelectric materials respond to electric fields is critical for determining how best to use these materials in applications. Here, temperature dependent in situ x-ray diffraction is used to study how
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22057db8f415129fc753f4c5f91bfa7e
https://doi.org/10.1063/5.0056110
https://doi.org/10.1063/5.0056110
Publikováno v:
Journal of the American Ceramic Society. 99:1287-1293
(Ba,Ca)(Ti,Zr)O3 lead-free piezoelectric ceramics have been considered to be one of the most potential lead-free alternatives for PZT in the room-temperature range. The stability of the piezoelectric performance during unipolar cycling is investigate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f84035acc09f9821863f6fe2fa603d34
https://doi.org/10.1111/jace.14103
https://doi.org/10.1111/jace.14103
Publikováno v:
Journal of the American Ceramic Society. 99:174-182
(Ba, Ca)(Ti, Zr)O3 ceramics have been considered as a potential lead-free alternative to commonly used lead-based piezoelectric ceramics due to their high piezoelectric performance at room temperature. In this study, the bipolar fatigue behavior of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef945c9dd0dd38a505a4821f850da73a
https://doi.org/10.1111/jace.13927
https://doi.org/10.1111/jace.13927
Autor:
Jürgen Rödel, Matthias C. Ehmke, Kyle G. Webber, John E. Blendell, Florian H. Schader, Keith J. Bowman
Publikováno v:
Acta Materialia. 78:37-45
The large signal strain response as a function of uniaxial compressive stress, electric field and temperature is investigated for compositions across the morphotropic phase boundary in the (Ba,Ca)(Ti,Zr)O3 ferroelectric system. The largest piezoelect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40fdac209877cedeae1f70abbe46023d
https://doi.org/10.1016/j.actamat.2014.06.005
https://doi.org/10.1016/j.actamat.2014.06.005
Publikováno v:
Acta Materialia. 66:340-348
The large signal macroscopic strain response during an applied bipolar electric field is calculated from field-dependent in situ XRD data using expressions for, first, a lattice strain contribution and, second, a ferroelastic strain contribution. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ceb43faf18c7991aed47df3eb1b84dcf
https://doi.org/10.1016/j.actamat.2013.11.021
https://doi.org/10.1016/j.actamat.2013.11.021
Publikováno v:
Journal of the European Ceramic Society. 33:3037-3044
The piezoelectric properties of tetragonal BZT–BCT materials have been shown to be improved by using the field cooling poling method. It is shown that the piezoelectric coefficient of tetragonal BZT–BCT materials increases with higher poling temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e297d0c0f0a40b37700a6ca6c98aa33
https://doi.org/10.1016/j.jeurceramsoc.2013.05.032
https://doi.org/10.1016/j.jeurceramsoc.2013.05.032
Publikováno v:
Journal of the American Ceramic Society. 96:3805-3811
The effect of increasing poling fields on the properties of (1−x)BZT–xBCT compositions across the morphotropic phase boundary (MPB) is studied using large signal polarization and strain, small signal permittivity and piezoelectric coefficient, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e4f9f0e9a34067ea4bd055c6ced6d4f
https://doi.org/10.1111/jace.12586
https://doi.org/10.1111/jace.12586
Publikováno v:
Journal of the American Ceramic Society. 96:2913-2920
The effect of electric poling on the bipolar switching for tetragonal BZT–BCT materials is studied using large signal polarization and strain, small signal permittivity, and piezoelectric coefficient, as well as electric field–dependent in situ X
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14d8937c27a86618761e6be383de5a34
https://doi.org/10.1111/jace.12424
https://doi.org/10.1111/jace.12424
Publikováno v:
Journal of the American Ceramic Society. 94:2473-2478
Bipolar electric fatigue in the lead-free material 0.94(Bi1/2Na1/2)TiO3–0.06BaTiO3 (BNT-BT) is investigated throughout the first 100 cycles in which a strong degradation of macroscopic electromechanical properties is observed. The addition of 1 mol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9757343404a94fe168bde0719aba44c
https://doi.org/10.1111/j.1551-2916.2010.04379.x
https://doi.org/10.1111/j.1551-2916.2010.04379.x
Publikováno v:
2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy (ISAF/PFM).
Rietveld analysis of synchrotron diffraction data is used to resolve the macroscopic strain response of tetragonal barium zirconate titanate-barium calcium titanate (BZT-BCT) piezoceramics and determine the underlying strain mechanisms. A lattice str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d18e67e52fd0fbe64e704f3274d17c05
https://doi.org/10.1109/isaf.2013.6748664
https://doi.org/10.1109/isaf.2013.6748664