Journal articles: 'Ba(Ti,Ce)O3'

1

Ang, Chen, Zhi Jing, and Zhi Yu. "Ferroelectric relaxor Ba(Ti,Ce)O3." Journal of Physics: Condensed Matter 14, no. 38 (September 12, 2002): 8901–12. http://dx.doi.org/10.1088/0953-8984/14/38/313.

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2

Yang, Yang, Zhijian Zhou, Xiaoqin Ke, Yu Wang, Xiaopo Su, Jianting Li, Yang Bai, and Xiaobing Ren. "The electrocaloric effect in intrinsic-acceptor-doped Ba(Ti,Ce)O3-(Ba,Ca)TiO3 ceramics." Scripta Materialia 174 (January 2020): 44–48. http://dx.doi.org/10.1016/j.scriptamat.2019.08.026.

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3

LU, Da-Yong, and Masayuki TODA. "Dielectric Temperature Characteristics of High-k (Ba, La)(Ti, Ce)O3 Ceramics." Journal of the Ceramic Society of Japan 114, no. 1331 (2006): 612–19. http://dx.doi.org/10.2109/jcersj.114.612.

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4

Nfissi, Aziz, Yahya Ababou, Mounir Belhajji, Salaheddine Sayouri, and Taj-dine Lamcharfi. "Structural and dielectric properties of sol–gel processed Ce-doped BaTi0.97Y0.03O3 ceramics." Journal of Advanced Dielectrics 11, no. 01 (February 2021): 2150003. http://dx.doi.org/10.1142/s2010135x2150003x.

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Structural and dielectric properties of Ce-doped [Formula: see text][Formula: see text]O3 powders, with the chemical formulation (Ba[Formula: see text][Formula: see text](Ti([Formula: see text]- [Formula: see text]O3 such as [Formula: see text] = 0%, 1%, 3%, 5%, 7% and 9%, produced by the sol–gel method, have been investigated. X-ray diffraction analysis showed that Ce[Formula: see text] ions incorporated Ba sites until [Formula: see text]= 7% indicating that this concentration represents a solubility limit of Ce[Formula: see text] ions in [Formula: see text][Formula: see text]O3 matrix. Scanning electron microscopy (SEM) analysis showed a decrease in grain size down to the same concentration of 7%. Raman spectroscopy analysis showed the appearance of [Formula: see text] mode, which we attributed to the effect of incorporation of Ce[Formula: see text] and Y[Formula: see text] in BaTiO3 matrix. Dielectric measurements revealed that doping with cerium lowers the temperature of permittivity maximum at the ferroelectric-to-paraelectric transition (FPT) of the [Formula: see text][Formula: see text]O3 sample, and reaches a value that should be below [Formula: see text]C for [Formula: see text]= 9%. Moreover, the phenomenon of dielectric resonance was observed on all Ce-doped samples, which was not the case with other dopants as reported in the literature.

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5

Shin, Dong-Jin, Jinhwan Kim, Soon-Jong Jeong, and Jung-Hyuk Koh. "Piezoelectric and ferroelectric properties in Ba(Zr,Ti)O3 and CuO-Ba(Zr,Ti)O3 ceramics." Materials Research Bulletin 82 (October 2016): 7–10. http://dx.doi.org/10.1016/j.materresbull.2016.03.003.

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6

Furaleva, K. I., S. G. Prutchenko, A. V. Mitin, and E. D. Politova. "ChemInform Abstract: Ba(Pb,Sn)O3 and Ba(Pb,Ce)O3 Solid Solutions." ChemInform 30, no. 36 (June 13, 2010): no. http://dx.doi.org/10.1002/chin.199936022.

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7

ZHANG, QIWEI, JIWEI ZHAI, and LING BING KONG. "RELAXOR FERROELECTRIC MATERIALS FOR MICROWAVE TUNABLE APPLICATIONS." Journal of Advanced Dielectrics 02, no. 01 (January 2012): 1230002. http://dx.doi.org/10.1142/s2010135x12300022.

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With strong dependences of dielectric constant on external applied electric fields, relaxor barium zirconium titanate ( BaZr x Ti 1-x O 3 or BZT) and barium stannate titanate ( BaSn x Ti 1-x O 3 or BTS), in both bulk ceramic and thin film forms, are increasingly being recognized as potential candidates of microwave tunable materials for device applications. This paper is aimed to review the recent progress in understanding the dielectric properties (such as tunability, dielectric loss and dielectric constant) of these relaxor materials. However, due to their relatively high dielectric constant and loss tangent, pure Ba(Zr,Ti)O3 and Ba(Sn,Ti)O3 do not fully satisfy the requirements of practical device applications. Therefore, various strategies have been developed to improve the dielectric properties of these two groups of relaxor materials. In this paper, we first discussed the dielectric tunability characteristics of pure Ba(Zr,Ti)O3 and Ba(Sn,Ti)O3 and then summarized the strategies that have been used, including (i) small amount acceptor or donor doping (such as rare-earth ions and transition metal ions) and (ii) forming composites with low loss and low dielectric constant microwave dielectric materials (such as MgO , MgTiO3 and so on). At the same time, the relationship between relaxor behavior and dielectric tunability was also discussed.

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8

Wang, Chun Huy. "Structure and Electrical Properties of Lead-Free (Bi_0.5Na_0.5)TiO₃-Ba(Sn,Ti)O₃ Ceramics." Advanced Materials Research 148-149 (October 2010): 232–35. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.232.

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Extending the investigations on (Bi0.5Na0.5)TiO3-based solid solution for lead-free piezoelectric ceramics, this paper consider the complex solid-solution system (Bi0.5Na0.5)TiO3-Ba(Sn,Ti)O3. X-ray diffraction analysis revealed that, during sintering, all of the Ba(Sn,Ti)O3 diffuses into the lattice of (Bi0.5Na0.5)TiO3 to form a solid solution, in which a rhombohedral phase with a perovskite structure was found. It was found that the samples with a low content of Ba(Sn0.06Ti0.94)O3 exhibit relatively good physical and electric properties. For 0.98(Bi0.5Na0.5)TiO3-0.02Ba(Sn0.06Ti0.94)O3 ceramics, the electromechanical coupling coefficients of the planar mode kp and the thickness mode kt reach 0.16 and 0.57, respectively, at the sintering of 1100oC for 3 h. The ratio of thickness coupling coefficient to planar coupling coefficient is 3.56. For 0.98(Bi0.5Na0.5)TiO3-0.02Ba(Sn0.06Ti0.94)O3 ceramics, the relative density and the thickness coupling coefficient kt reach 98.1% and 0.58, respectively, at the sintering of 1100oC for 5 h. With suitable Ba(SnxTi1-x)O3 concentration and sintering condition, a dense microstructure and good electrical properties were obtained.

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9

V’yunov, Oleg, Leonid Kovalenko, and Anatolii Belous. "SYNTHESIS AND INVESTIGATION OF BARIUM TITANATE STANNATE SOLID SOLUTION." Ukrainian Chemistry Journal 85, no. 12 (December 16, 2019): 75–83. http://dx.doi.org/10.33609/0041-6045.85.11.2019.75-83.

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Solid solutions of barium titanate-stannate, Ba(Ti,Sn)O3 have been investigated. The sequence of phase transformations during the synthesis by solid state reactions technique has been determined, crystallographic and microscopic examinations of polycrystalline ceramics based on Ba(Ti,Sn)O3 solid solutions have been carried out. The laws governing the change in crystallographic parameters and the average grain size as a function of tin content have been shown. Electrophysical investigations of the obtained ceramics have been carried out. It has been found that the dielectric pa-rameters (e and tgd) of Ba(Ti,Sn)O3-based ceramics can be improved and their sintering temperature can be reduced by the addition of 0.5 wt.% manganese oxide(IV) and 2 wt. % of low-melting glass-forming admixture AST (Al2O3–SiO2–TiO2). It has been shown that the obtained materials have promise in creating ceramic capacitors based on them.

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10

Bendersky, L. A., R. Maier, J. L. Cohn, and J. J. Neumeier. "Structural Studies of Pulsed-laser-deposited Ba4Fe4Ti3O16 Oxide Films." Journal of Materials Research 15, no. 6 (June 2000): 1389–96. http://dx.doi.org/10.1557/jmr.2000.0201.

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For this paper the pulsed laser deposition on single-crystal MgO substrates of Ba4Fe4Ti3O16 target was studied by transmission electron microscopy and x-ray diffraction. The initial stage of the deposition resulted in the formation of the perovskite Ba(Fe, Ti)O3 phase in an epitaxial, cube-on-cube orientation relationship with a substrate. Further growth of the pseudo-cubic phase was interrupted by the formation of oriented grains with a disordered structure. This disordered structure had a mixture of lamellae of the cubic and hexagonal Ba(Fe, Ti)O3 phases. No formation of the Ba4Fe4Ti3O16 (E) phase was observed. Formation of the disordered phase was explained by the higher stability of hexagonal Ba(Fe, Ti)O3 where accommodation of Fe3+ occurred on a twinning plane. The development of the V-shape morphology and a limited number of orientations of the D structure were explained by the faceting and columnar morphology of the perovskite phase.

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11

Chen, Kai Huang, Chien Chuan Cheng, Ying Chung Chen, and Ting Chang Chang. "Reliability of Ba(Zr_0.1Ti_0.9)O₃ Ferroelectric Thin Films under Various Frequencies for Nonvolatile Memory Application." Key Engineering Materials 336-338 (April 2007): 73–75. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.73.

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In this study, ferroelectric thin films of Ba(Zr0.1Ti0.9)O3 were successfully deposited on Pt/Ti/SiO2/Si substrate under the optimal rf magnetron sputtering parameters, and their electrical and ferroelectric characteristics were investigated. The MFMIS structure of Al/Ba(Zr0.1Ti0.9)O3/ Pt/Ti/SiO2/Si was proposed in order to be applied as NDRO FRAM applications. From the experimental results obtained, the dielectric constant and the leakage current density of BZT films were about 200 and 1×10-9A/cm2, respectively, under the electrical field of 1 MV/cm. Besides, the saturation polarization and coercive field of Ba(Zr0.1Ti0.9)O3 films were found to be 4 μC/cm2 and 25 kV/cm, respectively, as the frequency of 103 Hz was applied. The variations of saturation polarization and coercive filed of films under various frequencies ranging form 102 to 106 Hz were also discussed.

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12

Zheng, Weijie, Jiaqi Lin, Xinmei Liu, Wenlong Yang, and Yuanshuo Li. "Enhanced ferroelectric and piezoelectric performance of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 lead-free ceramics upon Ce and Sb co-doping." RSC Advances 11, no. 5 (2021): 2616–23. http://dx.doi.org/10.1039/d0ra09441b.

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13

Sanlialp, Mehmet, Vladimir V. Shvartsman, Matias Acosta, and Doru C. Lupascu. "Electrocaloric Effect in Ba(Zr,Ti)O3-(Ba,Ca)TiO3Ceramics Measured Directly." Journal of the American Ceramic Society 99, no. 12 (August 24, 2016): 4022–30. http://dx.doi.org/10.1111/jace.14456.

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14

Chen, Lei, Xiao Hui Wang, Long Tu Li, and Zhi Lun Gui. "Effect of Ni Nano-Powders Addition on the Dielectric Properties of Ba(Ti,Zr)O₃ Based Y5V Ceramics." Solid State Phenomena 124-126 (June 2007): 691–94. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.691.

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In this paper, the influence of nickel (Ni) nano-powders addition on the microstructures and dielectric properties of Ba(Ti,Zr)O3 based Y5V non-reducing ceramics were investigated. The X-ray diffraction (XRD) analysis indicated that the primary phase was Ba(Ti,Zr)O3 and no Ni phase appeared until the amount of Ni exceeded 5mol%. Scanning electron microscope (SEM) observation showed that the Ni particles distributed homogenously throughout BTZ ceramic matrix. The incorporation of Ni altered the perovskite lattice parameters and thus led to the change of polarization degree under electric field and the improvement of the dielectric constant at Curie temperature.

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15

Lu, Da Yong, Dan Dan Han, Qiao Li Liu, Yan Dong Wang, and Xiu Yun Sun. "Structure and Dielectric Properties of Ce and Ca Co-Doped BaTiO₃ Ceramics." Key Engineering Materials 680 (February 2016): 184–88. http://dx.doi.org/10.4028/www.scientific.net/kem.680.184.

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Structure and dielectric properties of 5 % Ce and Ca co-doped BaTiO3 ceramics were investigated. The site occupations and valence states were studied using XRD, Raman spectroscopy, SEM, EPR and dielectric measurements. The Ba/Ti ratio has dramatic effects on ceramic structure and properties. Two single-phase ceramics with Ba/Ti = 1 and 0.937 have tetragonal and cubic structure, showing diffuse phase transition and first-order phase transition behaviors, respectively. The former exhibit the site occupations of mixed Ca2+/Ce3+ at Ba sites and Ca2+/Ce4+ at Ti sites. Ce ions have priority over Ca2+ ions in entering Ti sites as Ce4+ when co-doping in BaTiO3, which will impede Ca2+ ions to be incorporated completely into Ti sites.

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16

Bilous, Anatolii, Oleg V'yunov, and Leonid Kovalenko. "(Ba, Y)(Ti, Zr, Sn)O3-based PTCR materials." Ferroelectrics 254, no. 1 (March 2001): 91–99. http://dx.doi.org/10.1080/00150190108214990.

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17

Vivekanandan, R., Sam Philip, and T. R. N. Kutty. "Hydrothermal preparation of Ba(Ti,Zr)O3 fine powders." Materials Research Bulletin 22, no. 1 (January 1987): 99–108. http://dx.doi.org/10.1016/0025-5408(87)90156-5.

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18

Li, Yao, Hongbo Cheng, Huiwen Xu, Yunxiang Zhang, Peng Yan, Ting Huang, Chunming Wang, Zhigao Hu, and Jun Ouyang. "Electromechanical properties of (Ba,Sr)(Zr,Ti)O3 ceramics." Ceramics International 42, no. 8 (June 2016): 10191–96. http://dx.doi.org/10.1016/j.ceramint.2016.03.137.

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19

Choi, Won Seok, Young Park, Jin Hyo Boo, Junsin Yi, and Byung You Hong. "Synthesis and Characterization of Ce-Doped BZT Thin Films Deposited by a RF Magnetron Sputtering Method." Key Engineering Materials 321-323 (October 2006): 1336–39. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.1336.

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We investigated the structural and electrical properties of the 0.5% Ce-doped Ba(ZrxTi1-x)O3 (BZT) thin films with a mole fraction of x=0.2 and a thickness of 150 nm for the MLCC (Multilayer Ceramic Capacitor) application. Ce-doped BZT films were prepared on Pt/Ti/SiO2/Si substrates by a RF magnetron sputtering system as a function of Ar/O2 ratio and substrate temperature. X-ray diffraction patterns were recorded for the samples deposited with three different substrate temperatures. The thickness and the surface roughness of the films deposited with different Ar/O2 ratios were measured. The oxygen gas, which was introduced during the film deposition, had an influence on the growth rate and the roughness of the film. The surface roughness and dielectric constant of the Ce-doped BZT film varied with Ar to O2 ratios (5:1, 2:1, and 1:1) from 1.21 nm to 2.33 nm and 84 to 149, respectively. The Ce-doped BZT film deposited at lower temperature has small leakage current and higher breakdown voltage.

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20

Sagar, Raghavendra, Shivanand Madolappa, and R. L. Raibagkar. "Dielectric and Impedance Studies of Ce-Doped Ba(Zr0.52Ti0.48)O3." Integrated Ferroelectrics 130, no. 1 (January 2011): 21–26. http://dx.doi.org/10.1080/10584587.2011.621753.

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21

Lu, Da-Yong. "Influence of dc bias field on dielectric properties of high-k Y5V (Ba, La)(Ti, Ce)O3 ceramic." Materials Letters 63, no. 20 (August 2009): 1722–24. http://dx.doi.org/10.1016/j.matlet.2009.05.022.

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22

LU, Da-Yong, Xue-Cui LI, Masayuki TODA, Xue-Feng WANG, and Xiu-Yun SUN. "Improvement of solid solution and dielectric properties of (Ba,Sr)(Ti,Ce)O3 ceramics by slight La doping." Journal of the Ceramic Society of Japan 117, no. 1367 (2009): 828–31. http://dx.doi.org/10.2109/jcersj2.117.828.

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23

Alvarez, Alejandra V., and V. M. Fuenzalida. "Evidence of transition metal diffusion during hydrothermal ceramic film growth: Ba(Ti,Zr)O3on layered Ti–Zr alloy." Journal of Materials Research 14, no. 11 (November 1999): 4136–39. http://dx.doi.org/10.1557/jmr.1999.0558.

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Ti–Zr alloy thin films of 20–60 nm in thickness were evaporated on Pt-coated silicon wafers. The films exhibited a layered Ti–Zr depth distribution. The films were then treated hydrothermally in 0.25 M Ba(OH)2at 150 and 200 °C for 4–8 h. Films treated at 150 °C did not exhibit reflections from the Ba(TixZr1−x)O3perovskite structure by x-ray diffraction, although a slight barium content was detected by x-ray photoelectron spectrometry. On the other hand, the films treated hydrothermally at 200 °C revealed reflections corresponding to perovskite Ba(TixZr1−x)O3. These films exhibited a homogeneous titanium and zirconium depth distribution, as shown by x-ray photoelectron spectroscopy and Auger depth profiles, proving that either titanium or zirconium ions diffuse during the hydrothemal treatment. The initial Ti–Zr film was completely consumed during the hydrothermal process, leading to a film of homogeneous composition (Ba, Ti, and Zr) up to the interface with the platinum layer.

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24

Wilk, Agnieszka, Lucjan Kozielski, Daniel Michalik, Dawid Kozień, Jolanta Makowska, and Zbigniew Pędzich. "Synthesis and Photoluminescence Properties of Pr3+-Doped Ba0.5Ca0.5TixZr(1-x)O3 Perovskite Diphasic Ceramics Obtained by the Modified Pechini Method." Materials 15, no. 3 (January 29, 2022): 1058. http://dx.doi.org/10.3390/ma15031058.

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The Pr3+-doped solid solutions from (Ba,Ca)(Ti,Zr)O3 (BCTZO) system were successfully synthesized using an efficient and low-energy consuming route—the Pechini method combined with the sintering at relatively low temperature (1450 °C). The obtained materials were characterized by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). The dielectric properties were systematically studied. The Pr3+-doped BCTZO diphasic material generates intense and broad red photoluminescence (PL) emission at room temperature. The optical properties were significantly improved with the Ti4+ substitution by Zr4+ ions. As a result, the Pr3+-doped (Ba,Ca)(Ti,Zr)O3 ceramics is a promising candidate for environmentally friendly, multifunctional material by combining good dielectric and photoluminescent properties with prognosis for the manifestation of strong photoluminescent and mechanoluminescent effects.

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25

Cheng, Xuxin, Xiaoming Chen, Xiaoxia Li, Haining Cui, and Chao Xiong. "Influence of Ba/Ti ratio on PTCR effect of Bam(Ti1−xNbx)O3 ceramics prepared by the reduction sintering-reoxidation method." Modern Physics Letters B 32, no. 34n36 (December 30, 2018): 1840071. http://dx.doi.org/10.1142/s0217984918400717.

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In this work, we investigate the influences of Ba/Ti ratio and sintering conditions on the characteristics of positive temperature coefficient of resistance (PTCR) and electrical properties of Ba[Formula: see text](Ti[Formula: see text]Nb[Formula: see text])O3 (BTN) ceramics. The ceramics were fired at 1190[Formula: see text]C for 0.5–6.0 h in a reducing atmosphere and then reoxidized at 600–650[Formula: see text]C for 0–8 h. The Ba/Ti ratio [Formula: see text] affected the electrical properties and PTCR effect of the BTN specimens. The room-temperature (RT) resistance of the BTN samples initially decreased [Formula: see text] and then increased [Formula: see text] as the Ba/Ti ratio increased. Moreover, BTN ceramics exhibit a pronounced PTCR effect, with a resistance jump greater by 3.0 orders of magnitude and a low 0.1 [Formula: see text] RT resistance at a low reoxidation temperature of 600[Formula: see text]C after sintering under a reducing atmosphere. Furthermore, the average sample grain size increased along with the Ba/Ti ratio. In addition, the influence of the sintering time and the reoxidation time on the electrical properties and the PTCR effect were also investigated.

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26

KAKEGAWA, Kazuyuki, Jun-ichi MOHRI, and Hiroyoshi AOKI. "Synthesis of (Ba,Pb)(Zr,Ti)O3 and their properties." NIPPON KAGAKU KAISHI, no. 8 (1985): 1609–13. http://dx.doi.org/10.1246/nikkashi.1985.1609.

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27

Cui, Lei, Yu-Dong Hou, Sai Wang, Chao Wang, and Man-Kang Zhu. "Relaxor behavior of (Ba,Bi)(Ti,Al)O3 ferroelectric ceramic." Journal of Applied Physics 107, no. 5 (March 2010): 054105. http://dx.doi.org/10.1063/1.3327244.

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28

Dung, D. D., N. Q. Huy, N. H. Tuan, N. D. Quan, L. T. Loan, N. H. Linh, N. H. Thoan, N. N. Trung, and L. H. Bac. "Biferroic properties of Fe-doped Ba(Ti,Zr)O3 materials." Materials Letters 283 (January 2021): 128897. http://dx.doi.org/10.1016/j.matlet.2020.128897.

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Tang, X. G., X. X. Wang, K. H. Chew, and H. L. W. Chan. "Relaxor behavior of (Ba,Sr)(Zr,Ti)O3 ferroelectric ceramics." Solid State Communications 136, no. 2 (October 2005): 89–93. http://dx.doi.org/10.1016/j.ssc.2005.06.034.

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Chaput, F., and J. P. Boilot. "Chemical processing of (Ba, Sr)(Ti, Zr)O3 perovskite ceramics." Journal of Materials Science Letters 6, no. 9 (September 1987): 1110–12. http://dx.doi.org/10.1007/bf01729150.

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31

Wu, Jiagang, Wenjuan Wu, Dingquan Xiao, John Wang, Zhenchun Yang, Zhihang Peng, Qiang Chen, and Jianguo Zhu. "(Ba, Ca)(Ti, Zr)O3-BiFeO3 lead-free piezoelectric ceramics." Current Applied Physics 12, no. 2 (March 2012): 534–38. http://dx.doi.org/10.1016/j.cap.2011.08.016.

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Oh, KCi-Young, Kenji Uchino, and L. Eric Cross. "Optical Study of Domains in Ba(Ti,Sn)O3 Ceramics." Journal of the American Ceramic Society 77, no. 11 (November 1994): 2809–16. http://dx.doi.org/10.1111/j.1151-2916.1994.tb04509.x.

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33

von Cieminski, J., H. Th Langhammer, and H. P. Abicht. "Peculiar Electromechanical Properties of Some Ba(Ti, Sn)O3 Ceramics." physica status solidi (a) 120, no. 1 (July 16, 1990): 285–93. http://dx.doi.org/10.1002/pssa.2211200126.

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34

Wu, Jiagang, Arzigul Habibul, Xiaojing Cheng, Xiaopeng Wang, and Binyu Zhang. "Orthorhombic–tetragonal phase coexistence and piezoelectric behavior in (1−x)(Ba,Ca)(Ti,Sn)O3–x(Ba,Ca)(Ti,Zr)O3 lead-free ceramics." Materials Research Bulletin 48, no. 10 (October 2013): 4411–14. http://dx.doi.org/10.1016/j.materresbull.2013.06.035.

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35

Hasnat, K., N. Kamel, D. Moudir, Y. Mouheb, S. Kamariz, and A. Arabi. "Ftir and Raman Spectroscopic Study of a Complex Perovskite: Ca0.91-XCe0.09Rb0.04Csx[(Zr0.50Ti0.45)Al0.05]O3, X=0.2 to 0.4, Dedicated for Radioactive Waste Confinement." Advances in Materials Science 20, no. 2 (June 1, 2020): 81–94. http://dx.doi.org/10.2478/adms-2020-0012.

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AbstractPerovskite is able to sequester simultaneously, in its structure, both actinides and alkaline-earth elements. This study is an attempt to synthesize a complex perovskite Ca0.91-xCe0.09Rb0.04Csx[(Zr0.50Ti0.45)Al0.05]O3 (0.2≤x≤0.4), doped in the same time, with Ce, Cs and Rb. The synthesis is conducted by sintering at 1150°C during 16h. XRX analysis confirms the perovskite formation. SEM observations show a less porous microstructure. FTIR analysis reveals TiO6, Ti-O-Ti, Ti-O and Zr-O vibrations. Raman spectroscopy indicates many orthorhombic perovskite active modes, as: Ti-O6 and Ti-O3 torsions, ZrO7, CaO8 vibrations, the totally symmetric oxygen, and the O-octahedron cage rotation.

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36

Chai, L., and P. K. Davies. "Effect of M4+ (Ce, Sn, Ti) B-site substitutions on the cation ordering in Ba(Mg1/3Ta2/3)O3." Materials Research Bulletin 33, no. 8 (August 1998): 1283–92. http://dx.doi.org/10.1016/s0025-5408(98)00097-x.

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37

Chi, Xiaowei, Jingchao Zhang, Zhaoyin Wen, Yu Liu, Meifen Wu, and Xiangwei Wu. "Influence of In doping on the structure, stability and electrical conduction behavior of Ba(Ce,Ti)O3 solid solution." Journal of Alloys and Compounds 554 (March 2013): 378–84. http://dx.doi.org/10.1016/j.jallcom.2012.11.197.

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38

Fu, W. T., H. C. F. Martens, and W. J. A. Maaskant. "Transport properties of the Ce-doped Ba(Pb,Bi)O3 system." Solid State Communications 101, no. 2 (January 1997): 129–32. http://dx.doi.org/10.1016/s0038-1098(96)00534-0.

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Chandra, K. P., A. R. Kulkarni, and K. Prasad. "On the high temperature phase transition in Ba(Zr0.20Ti0.80)O3 ceramic." Journal of Advanced Dielectrics 07, no. 04 (August 2017): 1750025. http://dx.doi.org/10.1142/s2010135x17500254.

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Temperature dependent X-ray diffraction (XRD) and dielectric properties of perovskite Ba(Zr[Formula: see text]Ti[Formula: see text]O3 ceramic prepared using a standard solid-state reaction process is presented. Along with phase transitions at low temperature, a new phase transition at high temperature (873[Formula: see text]C at 20[Formula: see text]Hz), diffusive in character has been found where the lattice structure changes from monoclinic (space group: [Formula: see text] to hexagonal (space group: [Formula: see text]). This result places present ceramic in the list of potential candidate for intended high temperature applications. The AC conductivity data followed hopping type charge conduction and supports jump relaxation model. The experimental value of [Formula: see text][Formula: see text]pC/N was found. The dependence of polarization and strain on electric field at room temperature suggested that lead-free Ba(Zr[Formula: see text]Ti[Formula: see text]O3 is a promising material for electrostrictive applications.

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Mao, Wujian, Yanmin Jia, Jiang Wu, Yunlong Xie, Zheng Wu, Jinping Han, and Miao He. "Optical temperature sensing of piezoelectric Er3+-doped (Ba0.97Ca0.03)(Sn0.06Ti0.94)O3 ceramic." Functional Materials Letters 09, no. 05 (October 2016): 1650060. http://dx.doi.org/10.1142/s1793604716500600.

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The up-conversion optical emission temperature sensing of Er[Formula: see text]-doped (Ba[Formula: see text]Ca[Formula: see text])(Sn[Formula: see text]Ti[Formula: see text])O3 piezoelectric ceramic prepared via a conventional solid-state reaction method has been investigated in a range of 83–503[Formula: see text]K. There is a good linear relationship between the logarithm of the fluorescence intensity ratio of the green up-conversion emissions at 525[Formula: see text]nm and 550[Formula: see text]nm peaks (Ln([Formula: see text]/[Formula: see text])) and the inverse of temperature (1/[Formula: see text]). The maximum temperature sensitivity was found to be approximately 0.0051[Formula: see text]k[Formula: see text], suggesting that Er[Formula: see text]-doped (Ba[Formula: see text]Ca[Formula: see text])(Sn[Formula: see text]Ti[Formula: see text])O3 ceramic possesses potential application in optical non-contact temperature sensing.

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Surendran, Kuzhichalil Peethambaran, and Mailadil Thomas Sebastian. "Low Loss Dielectrics in Ba[(Mg1/3Ta2/3)1−xTix]O3 and Ba[(Mg1−xZnx)1/3Ta2/3]O3 Systems." Journal of Materials Research 20, no. 11 (November 2005): 2919–26. http://dx.doi.org/10.1557/jmr.2005.0384.

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The microwave dielectric properties of ceramics based on Ba[(Mg1/3Ta2/3)1−xTix]O3 (BMT-BT) and Ba[(Mg1−xZnx)1/3Ta2/3]O3 (BMT-BZT) were investigated as a function of composition x. In BMT-BT solid solution, the dielectric properties deteriorated with increasing concentration of Ti substitution at the B-site of BMT. A correlation was established between the quality factors of the solid solution phases and their tolerance factor. In BMT-BZT solid solution, where both the end compounds are ordered perovskites, the unit cell expands with increasing mole fraction of the Zn in Mg site of BMT while the dielectric constant increases monotonously from 24.8 (for BMT) to 29.7 (BZT). In BMT-BZT solid solution, the quality factor reaches a maximum (Qu·f = 109,900 GHz) for 60 mol/ of BZT.

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42

Xue, Dezhen, Yumei Zhou, Huixin Bao, Jinghui Gao, Chao Zhou, and Xiaobing Ren. "Large piezoelectric effect in Pb-free Ba(Ti,Sn)O3-x(Ba,Ca)TiO3 ceramics." Applied Physics Letters 99, no. 12 (September 19, 2011): 122901. http://dx.doi.org/10.1063/1.3640214.

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Choia*, Kyoon, June Choi,a, Eui-Seok Choi,a, Sung-Yoon Chung,b, and Ho-Yong Leec. "Hydrothermally Grown PZT Thick Films on Ba(Zr,Ti)O3 Substrates." Integrated Ferroelectrics 69, no. 1 (January 1, 2005): 73–81. http://dx.doi.org/10.1080/10584580590897308.

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Rodrigues, Ana Sofia, Maria Estrela Melo Jorge, Lurdes Ciríaco, Maria José Pacheco, and Ana Lopes. "Perovskites (La,Ba)(Fe,Ti)O3: AO7 photocatalysis under visible light." REVIEWS ON ADVANCED MATERIALS SCIENCE 59, no. 1 (May 8, 2020): 151–59. http://dx.doi.org/10.1515/rams-2020-0012.

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AbstractPerovskites BaTiO3, La0.1Ba0.9TiO3 and BaFeO3 were prepared by different methods and utilized as photo-catalytic material for the degradation of the AO7 dye, with visible light. The toxicity of the treated solutions and the toxicity of perovskite powders that remained in suspension after centrifuged was assessed.Different catalytic properties were found by changing synthesis methods, annealing conditions, temperature of assay, initial concentration of pollutant and amount of perovskite in suspension. BaTiO3 was prepared by ceramic or complex polymerization methods. This perovskite presents cubic structure, and the preparation method do not seem to have any influence on the unit cell parameter. On the other hand, annealing temperature has a marked influence on the time needed to attain good crystallinity. In the case of BaFeO3 prepared by the ceramic method, for low annealing temperature there is the formation of tetragonal phase, which changes to hexagonal with the increase in annealing temperature, being a Ba2Fe2O5 monoclinic phase involved in this phase transition.Regarding AO7 photocatalytic degradation, the best results, with almost complete colour removal, were obtained with BaFeO3 (97%), prepared by ceramic method, and with BaTiO3 (78%), prepared by polymer complex method. Toxicity assays towards Daphnia magna were performed with AO7 25 ppm aqueous solution samples, collected in the centrifuged suspensions of the photocatalytic assays, performed with different perovskites, and samples collected in centrifuged suspensions of perovskite powders. In general, there is no increase in toxicity when compared to the toxicity of an AO7 25 ppm aqueous solution. Only in the photodegradation assay with BaFeO3 a clear increase in toxicity was observed, indicating that toxic by-products are being formed.

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Hofer, Christiane, René Meyer, Ulrich Böttger, and Rainer Waser. "Characterization of Ba(Ti,Zr)O3 ceramics sintered under reducing conditions." Journal of the European Ceramic Society 24, no. 6 (January 2004): 1473–77. http://dx.doi.org/10.1016/s0955-2219(03)00573-9.

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Kim, J. G. "Fabrication of porous Ba(Ti,Sb)O3 ceramics and electrical properties." Materials Science and Engineering: A 347, no. 1-2 (April 2003): 306–10. http://dx.doi.org/10.1016/s0921-5093(02)00602-0.

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Wei, Xiaoyong, Xing Wan, and Xi Yao. "Dielectric relaxation in paraelectric phase of Ba(Ti,Sn)O3 ceramics." Journal of Electroceramics 21, no. 1-4 (March 23, 2007): 226–29. http://dx.doi.org/10.1007/s10832-007-9099-1.

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Medina, D. Y., R. T. Hernandez, I. Hernandez, and S. Orozco. "Luminescence in a Ba(Ti,Zr)O3 Films Deposited by Ultrasonic Spray Pyrolysis Method." MRS Proceedings 1481 (2012): 113–17. http://dx.doi.org/10.1557/opl.2012.1639.

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ABSTRACTThe Ba(Ti,Zr)O3 powders was synthesized for many methods because its properties as a piezoelectric, dielectric and ferroelectric material that insert it as an functional material, but there is little information in the studied of its optical properties. In this work Ba(Ti,Zr)O3films were produced by ultrasonic spray pyrolysis method for optical applications. The precursors used were an barium acetyl-acetonate, titanium acetyl-acetonate, and zirconium acetyl-acetonate powders dissolved in a N-N, dimethylformamide solution. Optical and morphological properties of the films shown a non crystalline structure and its emission spectra shown a broad and intense luminescence at 468nm which correspond to visible emission in the green region.

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Confalonieri, Giorgia, Vincenzo Buscaglia, Giovanna Canu, Maria Teresa Buscaglia, and Monica Dapiaggi. "The local and average structure of Ba(Ti, Ce)O3 perovskite solid solution: effect of cerium concentration and particle size." Journal of Synchrotron Radiation 26, no. 4 (June 6, 2019): 1280–87. http://dx.doi.org/10.1107/s1600577519004508.

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The amazing properties of ferroelectric perovskite BaTiO3 (BT) and its solid solutions make them indispensable for many technological applications (e.g. multilayer capacitors). Unfortunately, the so-called `size effect' limits their use. Indeed, under a certain critical particle size, these materials show a suppression of the spontaneous polarization and thus of the ferroelectric properties. In pure nanometric BaTiO3, this is related to a certain local structural disorder. However, only a few studies have explored BT solid solutions, where the doping effect, coupled to the reduced particle size, can play an important role. Therefore, in this work, the structure of BaCe x Ti1–x O3 (x = 0.02–0.20) was explored by traditional Rietveld method and Pair Distribution Function. Samples present a particle size from 80–160 nm to 400–1000 nm depending on increasing x. The carbox approach was applied, investigating the evolution of the local structure, its modifications and the structural coherent correlation length, as a function of cerium amount. Results demonstrate a cooperative effect of composition and reduced size in the ferroelectricity loss. The two, in fact, contribute to intensify the local structural disorder, decreasing the structural coherent correlation length. The local structural disorder is thus confirmed to be a relevant factor in the ferroelectric properties degradation.

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Zając, Wojciech, and Emil Hanc. "Strontium-substituted Ba(Ce,Zr)O3-δ oxides for proton conducting membranes." Functional Materials Letters 07, no. 06 (December 2014): 1440014. http://dx.doi.org/10.1142/s1793604714400141.

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This paper is focused on Ba 1-x Sr x( Ce 0.75 Zr 0.25)0.9 Nd 0.1 O 2.95 proton-conducting oxides, for which the effect of substitution of barium by strontium in a full range of compositions is studied. Crystal lattice symmetry, proton conductivity and stability in CO 2 atmosphere are discussed. Substitution of barium by strontium reduces toxicity and does not deteriorate chemical stability, however, crystal lattice of the strontium-substituted perovskites is more distorted, causing reduction of proton conductivity more than one order of magnitude. Balance between opposite tendencies can be found at low Sr content, e.g., 25 at.%.

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Journal articles on the topic 'Ba(Ti,Ce)O3'

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