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Artículos de revistas sobre el tema "Ba2NaNb5O15"

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Publicado: 6 de septiembre de 2023

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1

Fujishiro, K., Y. Uesu, S. Mori, N. Yamamoto y Y. Koyama. "Reentrant phase transition of ba2NaNb5O15". Ferroelectrics 185, n.º 1 (septiembre de 1996): 123–26. http://dx.doi.org/10.1080/00150199608210494.

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2

Scott, J. F. y Shou-Jong Sheih. "Fluctuation quenching of thermal focusing in Ba2NaNb5O15". Journal of Physics: Condensed Matter 2, n.º 42 (22 de octubre de 1990): 8553–56. http://dx.doi.org/10.1088/0953-8984/2/42/032.

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3

Rosenman, G. I., Yu L. Chepelev y E. I. Boikova. "Photo-Stimulated Relaxation of Exoemission in Ba2NaNb5O15". physica status solidi (a) 117, n.º 1 (16 de enero de 1990): 259–64. http://dx.doi.org/10.1002/pssa.2211170127.

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4

Huang, Qing-Wei, Jiong Xu, Li-Hui Zhu, Hui Gu y Pei-Ling Wang. "Molten Salt Synthesis of Acicular Ba2NaNb5O15 Seed Crystals". Journal of the American Ceramic Society 88, n.º 2 (febrero de 2005): 447–49. http://dx.doi.org/10.1111/j.1551-2916.2005.00058.x.

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5

Gridnev, S. A., A. V. Biryukov y O. N. Ivanov. "Spontaneous twisting of an incommensurable improper ferroelastic Ba2NaNb5O15". Physics of the Solid State 41, n.º 10 (octubre de 1999): 1697–99. http://dx.doi.org/10.1134/1.1131071.

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6

Esayan, S. K., V. V. Lemanov y A. Y. Maksimov. "Photogalvanic current in the incommensurate phase in Ba2NaNb5O15". Ferroelectrics Letters Section 4, n.º 1 (mayo de 1985): 1–5. http://dx.doi.org/10.1080/07315178508200636.

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7

Kundu, Swarup y K. B. R. Varma. "Synthesis, structural and optical properties of nanocrystalline Ba2NaNb5O15". CrystEngComm 15, n.º 44 (2013): 8887. http://dx.doi.org/10.1039/c3ce41250d.

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8

Torres, M. E., A. A. Kaminskii, C. González-Silgo, J. González Platas, D. Jaque, A. Ródenas, I. R. Martín y V. Lavín. "Dielectric anomalies in Nd3+ doped Ba2NaNb5O15 laser crystal". Journal of Alloys and Compounds 451, n.º 1-2 (febrero de 2008): 198–200. http://dx.doi.org/10.1016/j.jallcom.2007.04.176.

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9

Romo, F. Carrillo, C. Goutaudier, Y. Guyot, M. Th Cohen-Adad, G. Boulon, K. Lebbou, A. Yoshikawa y T. Fukuda. "Yb3+-doped Ba2NaNb5O15 (BNN) growth, characterization and spectroscopy". Optical Materials 16, n.º 1-2 (febrero de 2001): 199–206. http://dx.doi.org/10.1016/s0925-3467(00)00078-1.

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10

Bigotta, S., G. Gorini, A. Toncelli, M. Tonelli, E. Cavalli y E. Bovero. "Optical spectra of Er3+ in Ba2NaNb5O15 single crystals". Optical Materials 28, n.º 4 (marzo de 2006): 395–400. http://dx.doi.org/10.1016/j.optmat.2004.09.026.

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11

van Hal, H. A. M., W. A. Groen, S. Maassen y W. C. Keur. "Mechanochemical synthesis of BaTiO3, Bi0.5Na0.5TiO3 and Ba2NaNb5O15 dielectric ceramics". Journal of the European Ceramic Society 21, n.º 10-11 (enero de 2001): 1689–92. http://dx.doi.org/10.1016/s0955-2219(01)00095-4.

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12

Mori, S., N. Yamamoto, Y. Koyama y Y. Uesu. "Microstructure related to a low-temperature transition in Ba2NaNb5O15". Ferroelectrics 190, n.º 1 (enero de 1997): 13–18. http://dx.doi.org/10.1080/00150199708014086.

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13

Bao, Qiao-Xia, Li-Hui Zhu, Qing-Wei Huang y Jiong Xv. "Preparation of textured Ba2NaNb5O15 ceramics by templated grain growth". Ceramics International 32, n.º 7 (enero de 2006): 745–49. http://dx.doi.org/10.1016/j.ceramint.2005.05.020.

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14

El Alaoui-Belghiti, H., A. Simon, M. Elaatmani, J. M. Reau y J. Ravez. "TKWB-Type Lead-Free Oxyfluoride Relaxors Derived from Ba2NaNb5O15". physica status solidi (a) 187, n.º 2 (octubre de 2001): 549–56. http://dx.doi.org/10.1002/1521-396x(200110)187:2<549::aid-pssa549>3.0.co;2-z.

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15

Tabero, Piotr, Elzbieta Filipek y Mateusz Piz. "Reactivity of T-Nb2O5 or H-Nb2O5 towards V2O5. Synthesis in the solid state and properties of V4Nb18O55". Open Chemistry 7, n.º 2 (1 de junio de 2009): 222–27. http://dx.doi.org/10.2478/s11532-009-0001-7.

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AbstractThe IR spectrum of V4Nb18O55 has been compared with the IR spectra of selected niobates of known structures to show structural relations between these compounds. This comparison shows that V4Nb18O55 has crystal structure related to T-Nb2O5, W16Nb18O94 and Ba2NaNb5O15. On the other hand, reaction between V2O5 and H-Nb2O5 yields a solid solution of V2O5 in VNb9O25. It has been proposed two models of synthesized solid solution with formulas V1+xNb9-xO25 or V1+xNb9O25+5x/2.Independently of Nb2O5 polymorph, used for synthesis, the metastable compound VNbO5 cannot be synthesized in the solid state below 650°C
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16

Peng, Fei, Robert F. Speyer y Wesley Hackenberger. "Devitrification and dielectric properties of (Na2O,BaO)–Nb2O5–SiO2 and (K2O,SrO)–Nb2O5–SiO2 glass–ceramics". Journal of Materials Research 22, n.º 7 (julio de 2007): 1996–2003. http://dx.doi.org/10.1557/jmr.2007.0237.

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(Na2O,BaO)–Nb2O5–SiO2 and (K2O,SrO)–Nb2O5–SiO2 glass ribbons with varying proportions of alkali and alkaline earth were formed using roller quenching. (Na2O,BaO)–Nb2O5–SiO2 glasses of compositions devitrified to form Ba2NaNb5O15 (in the form of ∼80 nm crystallites in an amorphous matrix) yielded frequency-stable dielectric constants of ∼250 and losses of ∼0.05. Such low losses and frequency stabilities were also observed from (K2O,SrO)–Nb2O5–SiO2 glasses of compositions forming predominantly KSr2Nb5O6 (∼30 nm crystals), yielding dielectric constants of ∼400. Both optimized compositions showed moderate decreases in dielectric constant with increasing temperature.
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17

FUJIHASHI, Gaku, Atsushi KAKIMI, Shizutoshi ANDO, Soichiro OKAMURA, Toshio TSUCHIYA y Takeyo TSUKAMOTO. "Preparation of Ba2NaNb5O15 Thin Films by the Sol-Gel Method". Journal of the Ceramic Society of Japan 105, n.º 1221 (1997): 449–51. http://dx.doi.org/10.2109/jcersj.105.449.

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18

Isoda, Kunihiko, Jun Iba, Yoshiaki Uesu, J. M. Kiat y J. Aubree. "Generation of Optical Phase-Conjugate Wave in Undoped Photorefractive Ba2NaNb5O15". Japanese Journal of Applied Physics 30, Part 1, No. 9B (30 de septiembre de 1991): 2363–65. http://dx.doi.org/10.1143/jjap.30.2363.

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19

Watazu, A. y H. Masumoto. "Ba2NaNb5O15 thin film formed by electron cyclotron resonance plasma sputtering". Journal of Physics: Conference Series 417 (1 de marzo de 2013): 012066. http://dx.doi.org/10.1088/1742-6596/417/1/012066.

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20

Masuda, Y. "Electrical and non-linear optical properties of Ba2NaNb5O15 thin films". Integrated Ferroelectrics 20, n.º 1-4 (enero de 1998): 261. http://dx.doi.org/10.1080/10584589808238793.

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21

Gridnev, S. A., A. V. Biryukov y O. N. Ivanov. "Low-frequency acoustic study of ferroelastic phase transitions in Ba2NaNb5O15". Ferroelectrics Letters Section 25, n.º 1-2 (abril de 1999): 11–15. http://dx.doi.org/10.1080/07315179908204578.

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22

Ivanova, S. V. y I. I. Naumova. "The oscillations of the intensity photoinduced rayleigh scattering in ba2nanb5O15". Ferroelectrics 83, n.º 1 (enero de 1988): 95–97. http://dx.doi.org/10.1080/00150198808235454.

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23

Yogo, Toshinobu, Wataru Sakamoto, Tadayuki Isaji, Koichi Kikuta y Shin-ichi Hirano. "Synthesis of Ba2NaNb5O15 Powders and Thin Films Using Metal Alkoxides". Journal of the American Ceramic Society 80, n.º 7 (20 de enero de 2005): 1767–72. http://dx.doi.org/10.1111/j.1151-2916.1997.tb03050.x.

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24

Gridnev, S. A., A. V. Biryukov y O. N. Ivanov. "Peculiarities of domain wall dynamics in ferroelastic phase of Ba2NaNb5O15". Ferroelectrics 219, n.º 1 (noviembre de 1998): 1–8. http://dx.doi.org/10.1080/00150199808213491.

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25

Barre, S., H. Mutka, C. Roucau y G. Errandonea. "Influence of irradiation defects on the incommensurate phase of Ba2NaNb5O15". Phase Transitions 9, n.º 2 (enero de 1987): 225–29. http://dx.doi.org/10.1080/01411598708240787.

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26

Pernice, Pasquale, Luigi Sirleto, Manuela Rossi, Mario Iodice, Alessandro Vergara, Rocco Di Girolamo, Giuseppina Luciani, Claudio Imparato y Antonio Aronne. "Tunable Raman Gain in Transparent Nanostructured Glass-Ceramic Based on Ba2NaNb5O15 †". Nanomaterials 13, n.º 7 (24 de marzo de 2023): 1168. http://dx.doi.org/10.3390/nano13071168.

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Stimulated Raman scattering in transparent glass-ceramics (TGCs) based on bulk nucleating phase Ba2NaNb5O15 were investigated with the aim to explore the influence of micro- and nanoscale structural transformations on Raman gain. Nanostructured TGCs were synthesized, starting with 8BaO·15Na2O·27Nb2O5·50SiO2 (BaNaNS) glass, by proper nucleation and crystallization heat treatments. TGCs are composed of nanocrystals that are 10–15 nm in size, uniformly distributed in the residual glass matrix, with a crystallinity degree ranging from 30 up to 50% for samples subjected to different heat treatments. A significant Raman gain improvement for both BaNaNS glass and TGCs with respect to SiO2 glass is demonstrated, which can be clearly related to the nanostructuring process. These findings show that the nonlinear optical functionalities of TGC materials can be modulated by controlling the structural transformations at the nanoscale rather than microscale.
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27

Gridnev, S. A., A. V. Biryukov y O. N. Ivanov. "The decay of low-frequency elastic oscillations in a Ba2NaNb5O15 crystal". Physics of the Solid State 43, n.º 9 (septiembre de 2001): 1735–38. http://dx.doi.org/10.1134/1.1402232.

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28

Verwerft, M., G. Van Tendeloo, J. Van Landuyt y S. Amelinckx. "A complementary study by electron microscopy of modulated phases in Ba2NaNb5O15". Ferroelectrics 88, n.º 1 (diciembre de 1988): 27–36. http://dx.doi.org/10.1080/00150198808245149.

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29

Kiat, J. M., Y. Uesu, M. Akutsu y J. Aubree. "Direct optical observation of the 1q/2q transition in incommensurate Ba2NaNb5O15". Ferroelectrics 125, n.º 1 (enero de 1992): 227–32. http://dx.doi.org/10.1080/00150199208017072.

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30

Kakemoto, Hirofumi. "Electronic Structure and Thermoelectric Properties of Highly Oriented Ba2NaNb5O15 Reduced Ceramics". ACS Applied Electronic Materials 1, n.º 12 (20 de noviembre de 2019): 2476–82. http://dx.doi.org/10.1021/acsaelm.9b00554.

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31

Takahashi, Yoshihiro, Nobuhiro Fujie y Takumi Fujiwara. "Nano-sized Ba2NaNb5O15–NaNbO3 co-crystallized glass-ceramics in phosphoniobate system". Applied Physics Letters 100, n.º 20 (14 de mayo de 2012): 201907. http://dx.doi.org/10.1063/1.4719034.

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32

Lebbou, K., H. Itagaki, A. Yoshikawa, T. Fukuda, F. Carillo-Romo, G. Boulon, A. Brenier y M. Th Cohen-Adad. "Effect of Yb3+ content on purity and crystal growth of Ba2NaNb5O15". Journal of Crystal Growth 210, n.º 4 (marzo de 2000): 655–62. http://dx.doi.org/10.1016/s0022-0248(99)00899-4.

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33

Whittle, Thomas A., Christopher J. Howard y Siegbert Schmid. "Structures and phase transitions in barium sodium niobate tungsten bronze (BNN)". Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 77, n.º 6 (19 de noviembre de 2021): 981–85. http://dx.doi.org/10.1107/s2052520621010301.

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The room-temperature structure of the filled tetragonal tungsten bronze, Ba2NaNb5O15 (BNN), has been the subject of a number of studies, and these studies have given an almost corresponding number of different results. From a group theoretical examination of the different possibilities and a review of the published experimental results we conclude that the room-temperature structure is that proposed by Labbé et al. [J. Phys. Condens. Matter (1989), 2, 25–43] in the space group Bbm2 (Ama2 in standard setting) on a 2\sqrt{2}a × \sqrt{2}a × 2c cell. Upon heating, the structure remains ferroelectric but becomes tetragonal (space group P4bm) at 550 K, then paraelectric (space group P4/mbm) at and above 860 K.
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34

Shimazu, M., Y. Kubota, T. Wada y S. Tsutsumi. "X-Ray Powder Diffraction Study of the Tungsten Bronze Type Barium Sodium Niobates". Powder Diffraction 5, n.º 3 (septiembre de 1990): 125–30. http://dx.doi.org/10.1017/s0885715600015542.

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AbstractBa2NaNb5,O15 and eighteen additional compositions in the NaNbO3-BaNb2O6 system from 60 to 85 mole % BaNb2O6 have been prepared and studied by X-ray powder diffraction. A calculated pattern has been used to aid in indexing the powder pattern of stoichiometric Ba2NaNb5O15(BNN-S). The lattice parameters of BNN-S have been determined from repeated measurements of 2 higher order reflections and are a=b=17.5994(8)Å and c=7.9771(9)Å. A comparison with the Powder Diffraction File (PDF) 34-210 indicates that the present data provide a more precise match to the unit cell, include additional weak reflections and cover a greater 2θ range. There is a tungsten bronzetype solid solution range from 60 to 75 mole % BaNb2O6.
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35

Ando, Shizutoshi, Kaoru Konakahara, Soichiro Okamura y Takeyo Tsukamoto. "Preparation of Ba2NaNb5O15 thin films by pulsed laser ablation and their characterizations". Journal of the European Ceramic Society 19, n.º 6-7 (junio de 1999): 1369–72. http://dx.doi.org/10.1016/s0955-2219(98)00437-3.

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36

Romero, J. J., A. Brenier, L. E. Bausá, G. Boulon, J. Garcı́a Solé y A. A. Kaminskii. "Excited state absorption around 1060 nm of Nd3+ ions in Ba2NaNb5O15 crystal". Optics Communications 191, n.º 3-6 (mayo de 2001): 371–75. http://dx.doi.org/10.1016/s0030-4018(01)01126-9.

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37

Haro-González, P., I. R. Martín, F. Lahoz, S. González-Pérez, E. Cavalli y N. E. Capuj. "Optical amplification in Er3+-doped transparent Ba2NaNb5O15 single crystal at 850 nm". Journal of Applied Physics 106, n.º 11 (diciembre de 2009): 113108. http://dx.doi.org/10.1063/1.3267155.

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38

Yogo, Toshinobu, Wataru Sakamoto, Tadayuki Isaji, Masao Ichida, Arao Nakamura y Shin-ichi Hirano. "Synthesis of Oriented Ba2NaNb5O15 (BNN) Thin Films from an Alkoxy-derived Precursor". Journal of the American Ceramic Society 82, n.º 10 (21 de diciembre de 2004): 2672–76. http://dx.doi.org/10.1111/j.1151-2916.1999.tb02140.x.

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39

Guo, X. L., Z. G. Liu, S. N. Zhu, Y. Y. Zhu, S. B. Xiong y C. Y. Lin. "Excimer laser ablation of Ba2NaNb5O15 optical waveguide films on MgO(001) substrates". Materials Letters 29, n.º 1-3 (noviembre de 1996): 155–58. http://dx.doi.org/10.1016/s0167-577x(96)00137-1.

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40

YOGO, T., W. SAKAMOTO, T. ISAJI, K. KIKUTA y S. HIRANO. "ChemInform Abstract: Synthesis of Ba2NaNb5O15 Powders and Thin Films Using Metal Alkoxides." ChemInform 28, n.º 42 (3 de agosto de 2010): no. http://dx.doi.org/10.1002/chin.199742309.

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41

Chen, Ting, Shou-Jong Sheih, J. F. Scott y Huanchu Chen. "Temporal dependence of thermal self-focusing in ferroelectric Ba2NaNb5O15 and Ce3 :SrxBa1-xNb2O6". Ferroelectrics 120, n.º 1 (agosto de 1991): 115–29. http://dx.doi.org/10.1080/00150199108216808.

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42

Zhu, Shi-Ning, Yong-Yuan Zhu, Jun-Ming Liu, Zhi-Guo Liu y Nai-Ben Ming. "'Non-critical' phase-matching in nonlinear Ba2NaNb5O15/KTiOPO4film waveguides grown by epitaxial methods". Journal of Physics D: Applied Physics 28, n.º 3 (14 de marzo de 1995): 463–67. http://dx.doi.org/10.1088/0022-3727/28/3/003.

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43

Cavalli, Enrico, Alessandro Belletti, Rachid Mahiou y Philippe Boutinaud. "Luminescence properties of Ba2NaNb5O15 crystals activated with Sm3+, Eu3+, Tb3+ or Dy3+ ions". Journal of Luminescence 130, n.º 4 (abril de 2010): 733–36. http://dx.doi.org/10.1016/j.jlumin.2009.11.038.

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44

Liu, J. M., S. N. Zhu, Z. G. Liu, Y. Y. Zhu, Z. C. Wu y N. B. Ming. "Excimer laser ablating preparation of Ba2NaNb5O15 optical waveguiding films on (001) KTiOP04 substrates". Solid State Communications 93, n.º 6 (febrero de 1995): 479–82. http://dx.doi.org/10.1016/0038-1098(94)00823-x.

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45

Bigotta, S., A. Toncelli, M. Tonelli, E. Cavalli y E. Bovero. "Spectroscopy and energy transfer parameters of Tm3+- and Ho3+-doped Ba2NaNb5O15 single crystals". Optical Materials 30, n.º 1 (septiembre de 2007): 129–31. http://dx.doi.org/10.1016/j.optmat.2006.11.040.

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46

Gridnev, S. A., A. V. Biryukov y A. A. Khodorov. "Peculiarities of low-frequency internal friction near the ferroelastic phase transition in Ba2NaNb5O15". Ferroelectrics 233, n.º 1 (septiembre de 1999): 159–64. http://dx.doi.org/10.1080/00150199908017006.

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47

Ihyadn, Abderrahim, Abdelilah Lahmar, Igor Luk’yanchuk, Daoud Mezzane, Lahcen Bih, Abdelhadi Alimoussa, M’barek Amjoud y Mimoun El Marssi. "Structural, dielectric and energy storage properties of BaO–Na2O–Nb2O5–P2O5 glass-ceramics". Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B 63, n.º 2 (2022): 33–42. http://dx.doi.org/10.13036/17533562.63.2.20.

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A series of (1−x)[(2BaO–0·5Na2O)–1P2O5] –xNb2O5 (BNPN, x=0·41, 0·43, 0·45, 0·48) glass-ceramics based on phosphate glasses have been prepared via a controlled-crystallisation route. The structure, dielectric properties, interfacial polarisation and energy storage properties were systematically investigated. The x-ray diffraction results showed the simultaneous presence of Ba2NaNb5O15 tungsten bronze structure (TTB) and the NaNbO3 perovskite. A stable dielectric constant over a temperature range from 25–200°C, low dielectric losses less than 0·03 and excellent frequency stability at room temperature were obtained. The decrease of niobium content promoted the TTB crystallisation with improvement of the high dielectric properties of the system. The optimum of the dielectric constant and recoverable energy storage density were obtained for BNP41 crystallised at 1000°C. Analyses of the complex impedance indicated that the niobium content and crystallisation temperature affect the interfacial polarisation.
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48

Van Dyck, D. y M. Op de Beeck. "Direct structure information using the focus-variation method". Proceedings, annual meeting, Electron Microscopy Society of America 51 (1 de agosto de 1993): 1068–69. http://dx.doi.org/10.1017/s0424820100151179.

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1. Introduction In, a new method was proposed to reconstruct the exit wavefunction of an object from a combination of images at closely spaced focus values. Recently, in the framework of a Brite-Euram project, the method has been implemented on a Philips CM20 ST electron microscope equipment with Field emission source and CCD camera. The first experimental results for the high TC superconductor YBa2Cu4O8 are presented in. In this case, the object is very thin so that the phase of the wavefunction directly reveals the projected potential of the atom columns. The oxygen columns could be observed with a resolution of 0.13 nm. However, when the object is thicker, the one-to-one correspondence between the wavefunction and the projected structure is not so straightforward due to the dynamical diffraction. This is shown in Figure 1 for Ba2NaNb5O15 where the heavy columns are revealed in the amplitude and the bright columns in the phase.
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49

TSUKIOKA, MASAYUKI, TASUKU MASHIO, MASAJI SHIMAZU y TAKESHI NAKAMURA. "FILM FABRICATION AND OPTICAL PROPERTIES OF AMORPHOUS THIN-FILM OF MODIFIED BNN (Ba2NaNb5O15) SYSTEM". Modern Physics Letters B 03, n.º 05 (10 de abril de 1989): 387–92. http://dx.doi.org/10.1142/s0217984989000625.

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For the first step of making highly aligned BNN thin-film, transparent and colorless amorphous thin-films of modified BNN system were successfully prepared either on silicon oxide layer formed on (111) plane of a polished silicon wafer of 500×0.3 mm or on polished glass ceramic plate of 50×50 mm by rf-sputtering technique. Sputtering targets, whose chemical composition was proposed by K.G. Barraclough as the congruently melting one, were used. Refractive indices and thickness of the films at several positions on these thin-films were measured by prism-coupling technique, and they were about 2.35 and 1.93 μm, respectively over the entire film surface.
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Yin, Z., P. Zhang y M. S. Zhang. "Lattice matching, phase matching, and constituent consistency of optical waveguide Ba2NaNb5O15 films on KTiOPO4". Applied Physics Letters 68, n.º 16 (15 de abril de 1996): 2303–5. http://dx.doi.org/10.1063/1.116171.

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