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Статті в журналах з теми "Bismuth silicate"
Makarevich, K. S., O. I. Kaminsky, A. V. Zaitsev, E. A. Kirichenko, and V. O. Krutikova. "Creation and research of new bioindifferent photocatalysts that use the energy of solar radiation to purify wastewater from pollutants." IOP Conference Series: Earth and Environmental Science 895, no. 1 (November 1, 2021): 012024. http://dx.doi.org/10.1088/1755-1315/895/1/012024.
Повний текст джерелаBautista-Ruiz, J., A. Chaparro, and W. Bautista. "Characterization of bismuth-silicate soles." Journal of Physics: Conference Series 1386 (November 2019): 012020. http://dx.doi.org/10.1088/1742-6596/1386/1/012020.
Повний текст джерелаАванесян, В. Т., И. В. Писковатскова та В. М. Стожаров. "Влияние рентгеновского излучения на оптические свойства фоторефрактивных кристаллов силиката висмута". Физика и техника полупроводников 53, № 8 (2019): 1043. http://dx.doi.org/10.21883/ftp.2019.08.47992.9115.
Повний текст джерелаXin Wang, Xin Wang, Lili Hu Lili Hu, Kefeng Li Kefeng Li, Ying Tian Ying Tian, and Sijun Fan Sijun Fan. "Spectroscopic properties of thulium ions in bismuth silicate glass." Chinese Optics Letters 10, no. 10 (2012): 101601–5. http://dx.doi.org/10.3788/col201210.101601.
Повний текст джерелаProchnow, Eberhard, David F. Edwards, R. P. Shukla, J. Choi, and M. D. Aggarwal. "The Precision Polishing of Bismuth Silicate and Bismuth Germanate." Applied Optics 33, no. 34 (December 1, 1994): 8101. http://dx.doi.org/10.1364/ao.33.008101.
Повний текст джерелаKusz, B. "Ionic conductivity of bismuth silicate and bismuth germanate glasses." Solid State Ionics 159, no. 3-4 (April 2003): 293–99. http://dx.doi.org/10.1016/s0167-2738(02)00911-6.
Повний текст джерелаKusz, B., and K. Trzebiatowski. "Bismuth germanate and bismuth silicate glasses in cryogenic detectors." Journal of Non-Crystalline Solids 319, no. 3 (May 2003): 257–62. http://dx.doi.org/10.1016/s0022-3093(02)01969-5.
Повний текст джерелаKlebanskii, E. O., A. Yu Kudzin, V. M. Pasal’skii, S. N. Plyaka, L. Ya Sadovskaya, and G. Kh Sokolyanskii. "Thin sol-gel bismuth silicate films." Physics of the Solid State 41, no. 6 (June 1999): 913–15. http://dx.doi.org/10.1134/1.1130903.
Повний текст джерелаLarkin, John, Meckie Harris, J. Emery Cormier, and Alton Armington. "Hydrothermal growth of bismuth silicate (BSO)." Journal of Crystal Growth 128, no. 1-4 (March 1993): 871–75. http://dx.doi.org/10.1016/s0022-0248(07)80061-3.
Повний текст джерелаKobayashi, Masaaki, Mitsuru Ishii, Kenji Harada, and Isao Yamaga. "Bismuth silicate Bi4Si3O12, a faster scintillator than bismuth germanate Bi4Ge3O12." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 372, no. 1-2 (March 1996): 45–50. http://dx.doi.org/10.1016/0168-9002(95)01279-6.
Повний текст джерелаДисертації з теми "Bismuth silicate"
Wiegel, Michaela E. K. (Michaela Emilie Kurt) 1973. "Gravitational effects on defect formation in melt grown photorefractive materials : bismuth silicate." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29626.
Повний текст джерелаIncludes bibliographical references (leaves 206-213).
Photorefractivity is the modulation of index of refraction due to nonuniform illumination, and numerous applications have been demonstrated utilizing this nonlinear optical property. However, commercial production is seriously impeded by the inability to produce bulk material with the homogeneity of opto-electronic properties that is required for device applications. Bismuth Silicate, Bi12SiO20, (BSO) is a photorefractive material with outstanding properties including a fast response time and high sensitivity is studied. Its photorefractivity is due to a native defect whose exact nature and origin have not been unambiguously determined. Motivation for current research arose from unexplained optical variations observed in BSO that implicate convective interference as playing a role in native defect formation. Microgravity growth experiments are proposed in order to establish a controlled, convection-free environment to study the origin and nature of the critical native defect. This work aims at resolving critical aspects of performing quantitative microgravity growth experiments that include the interaction of BSO melts with its confinement material; development and characterization of a vertical Bridgman-Stockbarger growth system with a quantifiable, reproducible, and controllable thermal environment; and Bridgman-Stockbarger growth experiments. A comparative analysis of crystals was done in order to establish the relationship between variations in opto-electronic properties as a function of changes in growth conditions. Wetting experiments revealed the sessile drop method to be inappropriate for the BSO-platinum system due to grain boundary pinning. No fundamental difference between the wetting behavior in a terrestrial and a low gravity environment was observed.
(cont.) Results from the comparative analysis indicate a lower defect concentration in Bridgman-Stockbarger material as compared to Czochralski material. The ambient atmosphere during processing and high temperature annealing was found affect material response, including removal of the photochromic response and decrease of carrier lifetime. The lack of the critical defect in hydrothermal BSO, and its existence in all melt grown material indicates that the melt plays a fundamental role in its formation. Clustering in the melt is implicated in the literature from nonlinear melt properties. It is therefore hypothesized that these clusters in the melt act as precursors for native defect formation and subject to gravitationally induced convection. The support of the National Aeronautics and Space Administration is gratefully acknowledged.
by Michaela E.K. Wiegel.
Ph.D.
Laguta, Oleksii. "Magneto-optical investigations of Bismuth-doped silica glasses." Thesis, Lille 1, 2016. http://www.theses.fr/2016LIL10082/document.
Повний текст джерелаBismuth-doped silica glasses are interesting due to the promising applications in fiber lasers and amplifiers for the communication purposes. Unfortunately, the nature of the optical active centre(s) in such glasses is still a subject of intense debuts.Magneto-optical methods of spectroscopy are very powerful tools for the investigation of paramagnetic centres in condensed matters. In this thesis, the magnetic circular dichroism, magnetic circular polarization of luminescence and optically detected magnetic resonance techniques were implemented to investigate Bi-doped silica glasses. Together with the methods of the conventional optical spectroscopy, we demonstrate the coexistence of at least two types of optical centres in a Bi-doped silica glass without other co-dopants and three types in a Bi-doped aluminosilicate glass. The analysis of experimental data revealed that all centres originate from systems with an even number of electrons (or holes). Two centres were identified as Bi+ ion and some defect in the glass network that interact via the energy transfer processes. The third centre is assigned to the clusters of Bi ions and it was observed only in the highly doped aluminosilicate sample. For the first time, we showed experimentally that the lasing related near-infrared luminescence is caused by a forbidden transition from the first excited state of the defect centre
Brochin, Frédéric. "Nanocomposites bismuth-silice : élaboration, caractérisation microstructurale et propriétés de transport." Vandoeuvre-les-Nancy, INPL, 2000. http://www.theses.fr/2000INPL015N.
Повний текст джерелаZhao, Yixuan. "Nanocomposites de silices micro et méso poreuses/nanofils de Bi élaborés sous haute pression." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS082.
Повний текст джерелаBulk bismuth has moderate thermoelectric properties. The reduction of its dimensionality (for example Bi nanowires) can improve its thermoelectric properties, in other words, this reduction can improve the Seebeck coefficient, and decrease the electrical resistivity and thermal conductivity. These nanowires could be used for Peltier refrigeration. Micro- and mesoporous silica? have channels that allow to confine Bi atoms and thus to create nano-sized Bi wires inside. Molten Bi at high pressure was compressed under high pressure in order to insert it into the pores. High pressure and high temperature are generated by a diamond anvil cell (DAC) and a CONAC28 large volume press. The lattice dynamics and the stability of the different phases of Bi were first studied. The experimental results are consistent with those calculated and the Raman spectrum of Bi III was observed for the first time. The Bi/silica micro- and meso-porous composite samples were characterized by XRD, Raman, SEM, TEM, and NPD. Some characterization techniques were suitable to confirm the synthesis. In the case of Bi/MFI, Bi chains of 6Å were observed with TEM. The average number of Bi atoms per cell (14 Bi) was determined by the Rietveld refinement using the calculated model (24 Bi/cell). DFT calculations have been performed for Bi/MFI nanocomposites to predict their physical properties. They show that the composites with 14 Bi would have a gap energy between 0.4eV and 1.69eV. In the case of Bi/nanotubes, only TEM could be used to characterize the nanotubes filled with 4nm diameter Bi nanowires prepared in the DAC or Bi rods of diameter around 10nm produced in CONAC28. In addition, the nanotubes in the Bi/nanotube composite transformed into crystalline quartz. Physical measurements were also performed in order to check if the thermoelectric properties are improved. Using the Van der Pauw method, an increase of electrical resistivity was observed (10 times and 3.3 times higher than in bulk Bi). However, the Seebeck coefficient measured has the same order of magnitude for both bulk Bi and the composites. Therefore, the measurements of isolated Bi nanowires will be necessary
Kalita, Mridu P. "Development of bismuth doped silica fibres for high power sources & long wavelength generation from ytterbium doped fibre lasers." Thesis, University of Southampton, 2010. https://eprints.soton.ac.uk/185965/.
Повний текст джерелаNguyen, Lucie. "Approche du frittage et du co-frittage de matériaux céramiques et métalliques pour l'élaboration par le procédé d'impression jet d'encre de composants magnétiques." Limoges, 2013. http://www.theses.fr/2013LIMO4005.
Повний текст джерелаThis work deals with the study of the sintering of ceramic and metallic materials to allow their co-sintering for the development of a magnetic component shaped by ink-jet printing. The study and understanding of the sintering of the dielectric material (composed of silica) with or without additives such as TiO2, Bi2O3, ZnO relied on the in situ characterizations by ESEM and XRD of the phase transformations, the mechanisms of densification occurring during the heat treatment. It has been shown that these additives could act either as former or modifier of the vitreous silica network and lead to large variations in the crystallization température and densification. The densification kinetics and shrinkage amplitude of the dielectric, conductive and magnetic materials are very different, several improvement possibilities were advocated for their co-sintering: doping of the conductive material, calcination température of the magnetic material. . . . These solutions allowed the élaboration of bimaterial components shaped by ink-jet printing with designs close to the one of the final component
MALKA, KAREN. "Reactivite du pentachlorure de molybdene sur des oxydes de vanadium, niobium et bismuth supportes sur silice : preparation de catalyseurs mixtes. comportement oscillant de la reaction d'oxydation menagee du methanol sur ces catalyseurs." Paris 6, 1995. http://www.theses.fr/1995PA066153.
Повний текст джерелаLe, Rouge Antoine. "Nouveaux matériaux vitreux dopés par des ions ou des nanoparticules métalliques et destinés à la réalisation de fibres optiques." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10143/document.
Повний текст джерелаThis thesis concerns the properties of two chemical elements which are bismuth ion and gold nanoparticles, for silica doped optical fiber. Efficiency device set up with bismuth doped silica fibers are limited by the misunderstanding of the infrared luminescent center. To this aim, we decided to use the stack and draw process to realize a microstructured optical fiber with a silica core doped only with bismuth. Evolution of spectroscopic properties of the optical fiber versus temperature is reported. We employed a model to deduce vibrational energies of the luminescent center. In a second time, we studied influence of the manufacturing atmosphere of Bismuth doped optical preforms on their spectroscopic properties. A chemical vapor deposition is use with more or less atmosphere during collapse step. Spectroscopic properties of bismuth doped silica preform are presented and discussed. All these results seem to confirm the presence in bismuth doped silica glass of a low valence state or a reduce species of the bismuth element. The second study concerns the linear and nonlinear properties of gold nanoparticles doped bulk glasses and optical fibers. In this work, we propose to start from monolithic silica xerogel with controlled porosity. It is then possible to obtain gold nanoparticles-doped glasses that can be used for the realization of micro-structured fibers using the Stack and Draw technique. Linear and nonlinear properties of bulk glass and optical fibers are studied. We will also present the properties the bulk glass that behaves like a saturable absorber and the optical fiber which presents optical limitation
Wang, Teng-Yu, and 玉珽玉. "Crystal Growth of Bismuth Silicate by Floating-Zone Method." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/23131285350122970829.
Повний текст джерела國立臺灣大學
化學工程學研究所
88
Manufacture of Non-linear optical(NLO) single crystal is the fundamental technology of optical process unit. NLO single crystal can apply to optical information processing, calculation and image stockpile. It come to important recently. We made up bismuth silicate(BSO) crystal by Floating-Zone method. BSO can apply to real-time optical information processing, optical computing, incoherent-to-coherent optical image conversion, real-time interferometry, image amplification and phase conjugation because of it’s sensitive properties. It also can apply to optical electric sensor or optical magnetic field sensor. We attempted to make up the most suitable feeding rod for floating-zone crystal growth by using different sintering method. We also discussed the cause which influence the stability of melting zone. And then we solved the unstable of melting zone. Beside we discussed the influence of crystal quality by using different crystal growth rate, crystal diameter, seed and temperature.
Yang, Chin-Tsung, and 楊謹聰. "The photocatalysts of Bismuth silicate and bismuth silicate/graphitic carbon nitride composites: Synthesis, characterization, activity, and their photocatalytic degradation of the organic pollutants." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/15967987415189424961.
Повний текст джерела國立臺中教育大學
科學教育與應用學系碩士班
104
In this study, a series of the bismuth silicate and bismuth silicate composite graphitic carbon nitride (g-C3N4) are prepared using autoclave hydrothermal methods. The novel heterojunctions of BixSiOy/g-C3N4 is fabricated by the hydrothermal method for the first time, in which g-C3N4 is synthesized by calcinations at 540℃ in muffle furnace. Bismuth silicate is prepared by Bi(NO3)3 and Na2SiO3, dissolved in an 1M HNO3 aqueous solution and adjusted the pH value, and then the aqueous solution is transferred into a 15 mL Teflon-lined autoclave and is heated to 150 oC for 8 hours. Finally, the BixSiOy and g-C3N4 are mixed in different ratio in a autoclave and is heated to 150oC for 4 hours. The products are characterized by XRD, SEM-EDS, FE-TEM, HR-XPS, PL, DR-UV, BET, FT-IR, and EPR. inorder to discuss the photocatalytic efficiency of bismuth silicate and bismuth silicate composite g-C3N4. Photocatalytic efficiency of the catalyst is use of photocatalytic degrading of organic pollutants - crystal violet (CV) by measuring crystal violet (CV) concentration.
Книги з теми "Bismuth silicate"
National Aeronautics and Space Administration (NASA) Staff. Identification and Control of Gravity Related Defect Formation During Melt Growth of Electro-Optic Single Crystals Bismuth Silicate(bi12sio20). Independently Published, 2018.
Знайти повний текст джерелаЧастини книг з теми "Bismuth silicate"
Pavlenko, A., and R. Yastrebinskiy. "Topochemical Transformations in Sodium-Bismuth-Silicate System at 100–900 ℃." In Springer Proceedings in Earth and Environmental Sciences, 123–26. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22974-0_28.
Повний текст джерелаRojo, J. C., and E. Diéguez. "Bismuth Germanate, Titanate, and Silicate." In Encyclopedia of Materials: Science and Technology, 637–43. Elsevier, 2001. http://dx.doi.org/10.1016/b0-08-043152-6/00121-2.
Повний текст джерелаM. Dakhil Alsingery, Rifat, and Ahmed Mudhafer. "Development of Bismuth-Doped Fibers (BDFs) in Optical Communication Systems." In Bismuth - Fundamentals and Optoelectronic Applications. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.93857.
Повний текст джерела"Physical, Optical and Structural Properties of Er3+ Doped Zinc/Cadmium Bismuth Borate/Silicate Glasses." In Current Trends on Glass and Ceramic Materials, edited by Inder Pal, Ashish Agarwal, Sujata Sanghi, and Mahender P. Aggarwal, 142–81. BENTHAM SCIENCE PUBLISHERS, 2013. http://dx.doi.org/10.2174/9781608054527113010010.
Повний текст джерелаWen, Jianxiang, Ying Wan, Yanhua Dong, Yi Huang, Yanhua Luo, Gang-Ding Peng, Fufei Pang, and Tingyun Wang. "Radiation Effect on Optical Properties of Bi-Related Materials Co-Doped Silica Optical Fibers." In Bismuth - Fundamentals and Optoelectronic Applications. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.93495.
Повний текст джерелаSeo, Young-Seok, and Yasushi Fujimoto. "Bismuth-doped Silica Fiber Amplifier." In Frontiers in Guided Wave Optics and Optoelectronics. InTech, 2010. http://dx.doi.org/10.5772/39558.
Повний текст джерела"Thermoelectric Properties of Bismuth Telluride–Filled Silicone." In Nanomaterials for Thermoelectric Devices, 115–26. Jenny Stanford Publishing, 2018. http://dx.doi.org/10.1201/9780429488726-13.
Повний текст джерелаTirions, O., M. Devillers, P. Ruiz, and B. Delmon. "Bismuth(III) and molybdenum(II) acetates as mono- and homopolynuclear precursors of silica-supported bismuth molybdate catalysts." In Studies in Surface Science and Catalysis, 999–1008. Elsevier, 1995. http://dx.doi.org/10.1016/s0167-2991(06)81843-4.
Повний текст джерелаCauzzi, D., M. Deltratti, M. Devillers, G. Predieri, O. Tirions, and A. Tiripicchio. "Silica-supported bismuth molybdate catalysts obtained by the sol-gel process via silicon alkoxides." In Preparation of Catalysts VII, Proceedings of the 7th International Symposium on Scientific Bases for the Preparation of Heterogeneous Catalysts, 699–706. Elsevier, 1998. http://dx.doi.org/10.1016/s0167-2991(98)80237-1.
Повний текст джерелаТези доповідей конференцій з теми "Bismuth silicate"
Krishnan, M. Laya, and V. V. Ravi Kanth Kumar. "Photoluminescence properties of LiF bismuth silicate glass." In DAE SOLID STATE PHYSICS SYMPOSIUM 2017. Author(s), 2018. http://dx.doi.org/10.1063/1.5028831.
Повний текст джерелаKrishnan, M. Laya, and V. V. Ravi Kanth Kumar. "Spectroscopic investigations of AgNO3 doped bismuth silicate glasses." In DAE SOLID STATE PHYSICS SYMPOSIUM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0017514.
Повний текст джерелаBrambilla, G., F. Koizumi, V. Finazzi, J. Mills, and D. J. Richardson. "Long-wavelength supercontinuum-generation in tapered bismuth silicate fibres." In International Quantum Electronics Conference, 2005. IEEE, 2005. http://dx.doi.org/10.1109/iqec.2005.1561031.
Повний текст джерелаBhardwaj, S., R. Shukla, S. Sanghi, A. Agarwal, I. Pal, S. K. Tripathi, Keya Dharamvir, Ranjan Kumar, and G. S. S. Saini. "Optical and structural analysis of lead bismuth silicate glasses." In INTERNATIONAL CONFERENCE ON ADVANCES IN CONDENSED AND NANO MATERIALS (ICACNM-2011). AIP, 2011. http://dx.doi.org/10.1063/1.3653645.
Повний текст джерелаHaruna, Tetsuya, Junji Iihara, and Masashi Onishi. "Bismuth-doped silicate glass fiber for ultra-broadband amplification media." In Optics East 2006, edited by Achyut K. Dutta, Yasutake Ohishi, Niloy K. Dutta, and Jesper Moerk. SPIE, 2006. http://dx.doi.org/10.1117/12.688684.
Повний текст джерелаPal, I., A. Agarwal, S. Sanghi, S. Bhardwaj та Sanjay. "Intense 1.6 μm fluorescence of Nd3+ doped cadmium bismuth silicate glasses". У SOLID STATE PHYSICS: Proceedings of the 58th DAE Solid State Physics Symposium 2013. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4872723.
Повний текст джерелаDenker, B. I., B. I. Galagan, S. E. Sverchkov, S. V. Firstov, I. A. Bufetov, S. L. Semenov, V. V. Velmiskin, and E. M. Dianov. "Bismuth-doped Mg-Al-silicate glasses and optical fibers on their base." In Advances in Optical Materials. Washington, D.C.: OSA, 2012. http://dx.doi.org/10.1364/aiom.2012.jth2a.4.
Повний текст джерелаKrishnan, M. Laya, and V. V. Ravi Kanth Kumar. "Structural and optical studies of bismuth silicate oxyfluoride glasses for LED applications." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS: ICAM 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5130364.
Повний текст джерелаAhlawat, Neetu, Sujata Sanghi, Ashish Agarwal, Navneet Ahlawat, Praveen Aghamkar, and Monica. "Investigation Of Dispersive Conductivity And Dielectric Losses In Barium Bismuth Silicate Glasses." In REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: Proceedings of the 35th Annual Review of Progress in Quantitative Nondestructive Evaluation. American Institute of Physics, 2011. http://dx.doi.org/10.1063/1.3653642.
Повний текст джерелаEllin, H. C., Anders Grunnet-Jepsen, Laszlo Solymar, and Jeno Takacs. "Effect of piezoelectricity on the photorefractive gain in a bismuth silicate crystal." In Optoelectronic Science and Engineering '94: International Conference, edited by Wang Da-Heng, Anna Consortini, and James B. Breckinridge. SPIE, 1994. http://dx.doi.org/10.1117/12.182140.
Повний текст джерелаЗвіти організацій з теми "Bismuth silicate"
Benavides-Montes, Victor. Polyethylene Glycol and Silica Coatings of Bismuth Nanoparticles: Synthesis, Characterization and Whole Serum Compatibilities. Portland State University Library, January 2015. http://dx.doi.org/10.15760/honors.162.
Повний текст джерела