Browsing by Author "Erhart Jiří"
Now showing 1 - 10 of 10
Results Per Page
Sort Options
- ItemAcoustic Energy Harvesting Using Piezo-Electric Materials(IEEE, 2020-01-01) Salem Shehab Ashraf; Fraňa Karel; Nová Iva; Erhart Jiří
- ItemThe complex evaluation of functional properties of nearly dense BCZT ceramics and their dependence on the grain size(2019-01-01) Bijalwan Vijay; Tofel Pavel; Erhart Jiří; Maca Karel
- ItemDerivation of losses from impedance spectrum for contour modes of ceramic resonator(Taylor and Francis, 2020-01-01) Erhart Jiří; Bijalwan Vijay; Solař Filip; Maca Karel
- ItemInvestigation of La3 doping effect on piezoelectric coefficients of BLT ceramics(Walter de Gruyter GmbH, 2017-01-01) Erhart Jiří; Wodecka-Dus Beata; Kozielski Lucjan; Pawelczyk M.; Radoszewska D.; Adamczyk M.; Bochenek D.Effects of La3+ admixture in barium lanthanum titanate (BLT) ceramics system with colossal permittivity on performance of prospective piezoelectric cold plasma application were studied. Usage of cold atmospheric pressure plasma appears promising in terms of industrial and healthcare applications. Performed investigation provide consistent evaluation of doping lanthanum amount on piezoelectric coefficients values with simultaneous capability of charge accumulation for effective plasma generation. Modification of ferroelectric materials with heterovalent ions, however with the lower radii than the original atoms, significantly affects their domain mobility and consequently electromechanical properties. To determine the piezoelectric coefficients, the resonanceantiresonance method was implemented, and values of piezoelectric and dielectric parameters were recorded. Finally the results indicated that addition of 0.4 mol.% of La3+ ions to the ceramic structure maximally increased the values of piezoelectric coefficient to d33 = 20 pC/N and to huge dielectric constant to ε33T = 29277.
- ItemObituary: Jan Fousek (1930-2016)(Taylor and Francis Group, 5 Howick Palace, London, SW1P 1WG, UK, 2016-01-01) Petzelt Jan; Janovec V.; Erhart Jiří; Mokrý Pavel; Nosek Jaroslav; Taylor W.
- ItemProcessing of 0.55(Ba0.9Ca0.1)TiO3-0.45Ba(Sn0.2Ti0.8)O3 lead-free ceramics with high piezoelectricity(Wiley and Sons, 2020-01-01) Bijalwan Vijay; Tofel Pavel; Spotz Zdeněk; Částková Klára; Sobola Dinara; Erhart Jiří; Maca Karel
- ItemResearch of processing of linear nanofibrous materials for 2-D and 3-D textile materials III(2019-01-01) Holec Pavel; Valtera Jan; Pokorný Pavel; Baťka Ondřej; Skřivánek Josef; Bílek Martin; Žabka Petr; Beran Jaroslav; Mikeš Petr; Lukáš David; Jenčová Věra; Kuželová Košťáková Eva; Erhart Jiří; Novák Ondřej; Sivan Manikandan
- ItemResearch of processing of linear nanofibrous materials for 2-D and 3-D textile materials IV(2019-01-01) Holec Pavel; Valtera Jan; Pokorný Pavel; Baťka Ondřej; Bílek Martin; Žabka Petr; Mikeš Petr; Sivan Manikandan; Jenčová Věra; Kuželová Košťáková Eva; Erhart Jiří; Beran Jaroslav; Lukáš David
- ItemSmart materials with shape memory(MUNI a JČMF, 2016-01-01) Erhart Jiří
- ItemWidth-Extensional Piezoelectric Ceramic Transformer(Editura Universitati din Oradea, 2018-01-01) Erhart Jiří; Půlpán Petr