Relevant bibliographies by topics / Barium Calcium Titanate

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Academic literature on the topic 'Barium Calcium Titanate'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 September 2023

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Dissertations / Theses on the topic "Barium Calcium Titanate"

1

Sakabe, Yukio. "Calcium-doped barium titanate ceramics for nickel electrode multilayer capacitors." 京都大学 (Kyoto University), 2003. http://hdl.handle.net/2433/149473.

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2

Kotlyarchuk, A., A. Ragulya, V. Klymenko, N. Dubovitskaya, T. Lobunets та S. Shatskikh. "Doped Barium Titanate at Intermediate Stages of Synthesis of ВТО". Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35475.

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This paper presents the results of synthesis and characterization of calcium 0doped nanocrystalline barium titanate powder with different concentration of doped elements ((Ba1-xCax) TiO3, were x 0; 0.02; 0.06; 0.1; 0.16; 0.2), produced by oxalate route. Calcium additives were added on the surface the samples of semidecomposed barium titanil oxalate. For synthesis were used simultaneously decomposition of unstable barium, titanium compositions and calcium salts. The semidecomposed barium titanil oxalate and doped barium titanate characterization carried out by specific surface area measure
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3

Shu, Chang. "Investigation of the structural and functional properties of lead-free barium calcium zirconate titanate piezoceramics." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8148/.

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There is an urgent desire to move from lead-based piezoelectric materials to lead-free alternatives. One of the most promising lead-free materials has been reported to be zBao.7oCao.3oTi0J-(1-z) BaZro.2oTio.soOJ (abbreviated as zBCT-(1-z)BZT) system, which has comparable piezoelectric performance to lead-based materials. However, there is a lack of systematic research to investigate the effects of fabrication on the structural and functional properties of this zBCT -(1-z)BZT system. In this work, the end member Bai-xCaxTiOJ (x=0-0.30) and BaZryTii-y03 (ji=0-0.30) systems have been investigated
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4

Koju, Naresh. "Smart Piezoelectric Calcium Phosphates for Orthopedic, Spinal-fusion and Dental Applications." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1524047236280822.

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5

Schröder, Mathias. "Conductive Domain Walls in Ferroelectric Bulk Single Crystals." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-142571.

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Ferroic materials play an increasingly important role in novel (nano-)electronic applications. Recently, research on domain walls (DWs) received a big boost by the discovery of DW conductivity in bismuth ferrite (BiFeO3 ) and lead zirconate titanate (Pb(Zrx Ti1−x )O3) ferroic thin films. These achievements open a realistic and unique perspective to reproducibly engineer conductive paths and nanocontacts of sub-nanometer dimensions into wide-bandgap materials. The possibility to control and induce conductive DWs in insulating templates is a key step towards future innovative nanoelectronic dev
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6

Schifferová, Zuzana. "Příprava kompozitních vláknitých struktur metodou elektrostatického zvlákňování pro piezoaplikace." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400447.

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Polymer and composite polymer-ceramic nanofibers were prepared by electrospinning process. Solution of 20 wt.% polyvinylidene fluoride (PVDF) in a mixture of dimethyl sulfoxide (DMSO) and acetone in the ratio of 7:3 was chosen as the most suitable precursor. When preparing composite nanofibers, 20 wt.% of barium calcium zirconate titanate (BCZT) or barium titanate (BT) nanoparticles was added to this PVDF solution. Given parameters were defined as the most suitable for the process of electrospinning: voltage of 50 kV, feeding rate of 30 l/min, distance between emitter and collector of 20 cm an
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7

Santos, Jerre Cristiano Alves dos. "Estudo do comportamento PTCR em cerâmicas de BCT dopadas com íons terra raras." Universidade Federal de Sergipe, 2012. https://ri.ufs.br/handle/riufs/5346.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Barium titanate (BaTiO3 - BT) is a ferroelectric material with important technological applications. When partially doped with trivalent cations at the barium sublattice or pentavalent at the titanium sublattice, BaTiO3-based ceramics exhibit a semiconductive character, accompanied by a Positive Temperature Coefficient of Resistivity (PTCR). Several ways of BT modifications have been proposed in literature, as example, the use of different synthesis methods and the doping with different ions. Therefore, in the present work we have
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8

Silva, Ronaldo Santos da. "Síntese e propriedades dielétricas de cerâmicas nanoestruturadas de Ba1xCaxTiO3 (0 menor igual x menor igual 0.30) sinterizadas a laser." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-19092007-100742/.

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Pós nanocristalinos de Ba1-xCaxTiO3(0&#8804; x &#8804; 0.30) foram sintetizados pela primeira vez por meio do método dos precursores poliméricos modificados, em temperaturas relativamente baixas (500°C). Para a densificação dos corpos cerâmicos duas técnicas distintas foram utilizadas: a sinterização convencional, utilizando um forno elétrico; e a sinterização a laser, na qual um laser de CO2 foi utilizado como principal fonte de calor. Os corpos cerâmicos sinterizados pelas duas técnicas apresentaram um tamanho médio de grãos em torno de 500 nm, porém uma maior densidade relativa foi obtida n
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9

Mhaifid, Touria. "Etude expérimentale des propriétés électrooptiques de la solution solide Ba0,97Sr0,03TiO3 et contribution au calcul des coefficients élastooptiques : application au calcul des coefficients électrooptiques de BaTiO3 et Ba0,97Sr 0,03TiO3." Dijon, 1996. http://www.theses.fr/1996DIJOS043.

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Jusqu'à présent BaTiO3 a été utilisé, pour ses propriétés photoréfractives, dans sa phase quadratique 9°C, 134°C. La limite inférieure de cette gamme de température représente un inconvénient majeur pour des applications industrielles où tous les composants fonctionnent jusqu'à -20°C. D'après les études antérieures faites au laboratoire la substitution des ions Ba par des ions Sr abaisse les températures de transitions du matériau sans changer ses propriétés photoexcitatrices. Une solution solide de Ba1-xSr TiO3 (BST) apparait comme une solution possible si la substitution ne s'accompagne pas
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10

Bernhardt, Sylvie. "Gyromètre a fibre a double conjugaison de phase - étude d'un nouveau matériau photorefractif - réalisation d'un démonstrateur." Phd thesis, Université Paris Sud - Paris XI, 2001. http://pastel.archives-ouvertes.fr/pastel-00715875.

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Le remplacement de la fibre monomode a maintien de polarisation par de la fibre monomode standard dans les gyroscopes a fibre est un véritable enjeu économique. En effet, il permettrait a ces systèmes d'être compétitifs au niveau du coût sur le marche des centrales de navigations inertielles actuellement domine par les gyroscopes laser. Cependant, les problèmes de non réciprocités et d'effondrement du signal provoqués par l'utilisation de ce type de fibre n'ont pas été résolus de façon satisfaisante à ce jour. C'est a ce niveau que l'utilisation de la double conjugaison de phase apparaît comme
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