Thematische Bibliographien / Aluminoborosilicate glass

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Auswahl der wissenschaftlichen Literatur zum Thema „Aluminoborosilicate glass“

Autor: Grafiati

Veröffentlicht am 25. Mai 2024

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Zeitschriftenartikel zum Thema "Aluminoborosilicate glass"

Malchukova, Eugenia, und Bruno Boizot. „Divalent Europium in β-Irradiated Aluminoborosilicate Glass“. Journal of the American Ceramic Society 93, Nr. 12 (23.11.2010): 4005–7. http://dx.doi.org/10.1111/j.1551-2916.2010.04209.x.

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Ruivo, Andreia, Marta Ferro, Suzana M. Andrade, João Rocha, Fernando Pina und César A. T. Laia. „Photoluminescent Nanocrystals in a Multicomponent Aluminoborosilicate Glass“. Journal of Physical Chemistry C 120, Nr. 43 (21.10.2016): 24925–31. http://dx.doi.org/10.1021/acs.jpcc.6b04552.

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�beling, P. V., A. N. Krasnov und V. D. Khaliev. „Composition of lithium aluminoborosilicate glass and abrasive“. Glass and Ceramics 53, Nr. 3 (März 1996): 88–91. http://dx.doi.org/10.1007/bf01061496.

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Hashikawa, Ryo, Yasuhiro Fujii, Atsushi Kinomura, Takeshi Saito, Arifumi Okada, Takashi Wakasugi und Kohei Kadono. „Radiophotoluminescence phenomenon in copper-doped aluminoborosilicate glass“. Journal of the American Ceramic Society 102, Nr. 4 (10.09.2018): 1642–51. http://dx.doi.org/10.1111/jace.16027.

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Fialko, N. M., V. V. Shchepetov, S. D. Kharchenko, S. I. Kovtun, Ya N. Hladkyi und S. S. Bys. „Nanostructural glasscomposite self-lubricant coatings“. Problems of Tribology 27, Nr. 4/106 (18.12.2022): 6–12. http://dx.doi.org/10.31891/2079-1372-2022-106-4-6-12.

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The results of the study of glass-composite nanostructured self-lubricating coatings are presented. The structural components of these coatings significantly affect the graphitization process and provide an antifriction surface layer of α-graphite. The formation of this layer makes it possible to significantly minimize the contact parameters in the friction region. A significant effect of aluminoborosilicate in the form of a glass phase on the tribological properties of coatings is noted. An increase in adhesive strength is achieved by forming a surface layer of glassy sodium silicate. The presence of near-surface particles in the graphite layer does not affect the tribotechnical characteristics of the coatings. The developed glass-composite nanostructured self-lubricating coatings have high antifriction characteristics throughout the entire load-speed range

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Suetsugu, Tatsuya, Takashi Wakasugi und Kohei Kadono. „Effect of glass composition on silver-incorporation into aluminoborosilicate glasses through a staining process“. Journal of Materials Research 25, Nr. 4 (April 2010): 701–7. http://dx.doi.org/10.1557/jmr.2010.0086.

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To fabricate graded-index optical elements by silver staining, we investigated the behavior of ion incorporation in aluminoborosilicate glasses, in which the contents of Al2O3 and Na2O were the same (in mol%). The amount of silver incorporated into the aluminoborosilicate glasses by the staining at 320 °C for 12 h was 5 to 10 times larger than that incorporated into the soda-lime silicate and borosilicate glasses. The diffusion depth of the incorporated silver ions was approximately 80 μm, which was also much deeper than that of the soda-lime silicate and borosilicate glasses. The coloration of the glasses was suppressed, particularly for the glass with the low content of Na2O. The concentration of the incorporated silver ions at the glass surface was 2 × 1021 atom/cm3 for the 37.5SiO2·25Al2O3·25Na2O·12.5B2O3 glass, corresponding to the replacement of sodium ions (20%). The refractive indices near the stained surfaces increased by 0.04 to 0.06. These values were comparable with those of the soda-lime silicate and borosilicate glasses.

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Sytnik, R. D., I. G. Kiuila, O. A. Ignatyuk und S. A. Sytnik. „Deposition of metal oxide coatings on aluminoborosilicate glass“. Glass and Ceramics 51, Nr. 2 (Februar 1994): 60–63. http://dx.doi.org/10.1007/bf00682686.

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Ruivo, Andreia, Suzana M. Andrade, João Rocha, César A. T. Laia und Fernando Pina. „Formation of Photoluminescent Lead Bromide Nanoparticles on Aluminoborosilicate Glass“. Journal of Physical Chemistry C 118, Nr. 23 (30.05.2014): 12436–42. http://dx.doi.org/10.1021/jp5003758.

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Seo, Joobeom, Sangbae Kim, In-Kook Bae und Wantae Kim. „Roasting of pyrophyllite for application in aluminoborosilicate glass production“. Geosystem Engineering 23, Nr. 3 (24.01.2020): 123–30. http://dx.doi.org/10.1080/12269328.2020.1719904.

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Morozumi, Hidekatsu, Satoshi Yoshida und Jun Matsuoka. „Composition dependence of crack formation probability in aluminoborosilicate glass“. Journal of Non-Crystalline Solids 444 (Juli 2016): 31–37. http://dx.doi.org/10.1016/j.jnoncrysol.2016.04.030.

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Dissertationen zum Thema "Aluminoborosilicate glass"

Achigar, Sophie. „Vitrification de déchets nucléaires de démantèlement riches en Mo, P et Zr. Etude structurale et microstructurale de leur incorporation dans un verre aluminoborosilicaté“. Electronic Thesis or Diss., Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLC019.

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Ce travail de thèse s’inscrit dans le projet DEM’N’MELT dont le but est de vitrifier des déchets de moyenne ou haute activité issus du démantèlement d’installations nucléaires. Les compositions de déchet considérées dans ce manuscrit, riches en P2O5, MoO3 et ZrO2 et dont l’activité résulte essentiellement du 137Cs, sont basées sur celles des déchets générés par le démantèlement de l’usine UP1 de Marcoule. Leur principale caractéristique est leur variabilité de composition. L’objectif est d’étudier l’incorporation de ces déchets dans un verre aluminoborosilicaté riche en alcalins à 1100 °C.Le premier axe d’étude consiste à se placer dans un système proche du système industriel (11 oxydes). Il a mis en évidence que MoO3 et P2O5 sont les deux principaux constituants du déchet conduisant à des séparations de phases et/ou des cristallisations. Celles-ci peuvent, dans le cas des phases molybdates, contenir du Cs. Aux teneurs envisagées, ZrO2 s’incorpore quant à lui dans la matrice sans générer d’hétérogénéités.Le deuxième axe se concentre sur l’étude structurale et microstructurale des mécanismes d’incorporation de P2O5 et MoO3 dans un système simplifié (6-7 oxydes). Ces éléments sont tout d’abord considérés seuls puis incorporés conjointement. Il apparaît que P et Mo s’insèrent majoritairement sous forme d’entités isolées (PO43- et MoO42-) du réseau vitreux et que leur incorporation conjointe augmente la tendance à la cristallisation du système
This work belongs to the DEM’N’MELT project, which is dedicated to the vitrification of intermediate or high level radioactive wastes coming from the dismantling of nuclear facilities. The waste compositions of this study, rich in P2O5, MoO3 et ZrO2 which activity is mainly due to 137Cs are close to the ones of the shutdown UP1 facility (Marcoule). Their main feature is the variability of their composition. This work objective is to study the incorporation of these wastes in an aluminoborosilicate glass rich in alkali oxides at 1100 °C.The first part of the study will be dedicated to a system close to the industrial one (11 oxides). It highlights that MoO3 and P2O5 are the main waste constituents responsible for phase separation or crystallization. Moreover, molybdate crystalline phases can contain Cs. ZrO2 is incorporated in the glassy matrix without leading to heterogeneities.Then, a simplified system (6-7 oxides) is studied along with the structural and microstructural incorporation mecanisms of P2O5 and MoO3. These oxides are first considered alone and then added simultaneously. This second study highlights that P et Mo mainly lead to the formation of entities isolated from the glassy network and that their simultaneous addition increases the crystallization tendency

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Rehouma, Ferhat. „Étude de l'échange d'ions a l'argent dans un verre aluminoborosilicate : application a un procède d'enterrage sélectif des guides“. Grenoble INPG, 1994. http://www.theses.fr/1994INPG0093.

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Cette etude traite des potentialites de la technologie d'echange d'ions sur verre, afin de realiser des composants integres ayant de bonnes performances optiques. Ce travail a abouti a la mise au point d'une nouvelle structure dans le domaine de l'optique integree appliquee a la realisation de capteurs. Nous presentons tout d'abord une etude sur l'influence de la composition du verre et de l'ion dopant (ag#+) sur les parametres de fabrication de guide optiques et sur leurs performances. Apres le choix du verre, on determine les parametres caracteristiques propres a l'echange. La modelisation de l'echange nous a permis de determiner les conditions optimales pour obtenir des guides enterres compatibles avec des fibres optiques. Les pertes d'insertion typiques mesurees a une longueur d'onde de 785 nm sont inferieures a 1. 2 db et les pertes de propagation des guides valent 0. 13 db/cm. Les resultats obtenus sont appliques a la mise en uvre d'une nouvelle structure qui consiste a enterrer selectivement le guide sur le substrat de verre. La structure se compose de trois parties: une partie enterree. Une partie en surface, les pertes de propagation du guide dans cette partie sont de 2. 8 db/cm. Une partie de transition reliant les deux precedentes. Dans cette derniere zone les pertes sont faibles (0. 36 db) pour une longueur de transition de 570 m. La methode de fabrication est simple, reproductible et les pertes de la structure sont facilement controlables. Nous avons teste la sensibilite de la structure vis a vis d'une perturbation exterieure en deposant differents liquides d'indice dans la region ou le guide est en surface. Une attenuation maximale de -32 db a ete mesuree pour une valeur de l'indice du superstrat proche de celui du guide. La sensibilite et le large taux d'extinction (32 db) ont ete mis a profit pour la realisation d'un capteur thermique demonstrateur. Le dispositif est sensible aux variations du superstrat dans une plage de temperature allant de 23 a 40c

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Buchteile zum Thema "Aluminoborosilicate glass"

Malchukova, Eugenia. „Influence of the Doping Ion Nature and Content on Defect Creation Processes under the Effect of Ionizing Radiation in Aluminoborosilicate Glasses“. In Recent Techniques and Applications in Ionizing Radiation Research. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.92317.

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Effects of ionizing irradiation on defect creation processes have been studied in rare earth (RE)-doped (RE = Sm, Gd, Eu, Ce, Nd) aluminoborosilicate glass with use of the electron paramagnetic resonance (EPR) and optical spectroscopy. As a function of RE ion nature, we observe that doping significantly influences the nature of the defects produced during irradiation and more specifically the relative proportions between hole and electron defect centers. Strong decrease of defect production efficiency under ionizing radiation independence on both the RE doping content and on the relative stability of the RE different oxidation states is also clearly revealed. The results could be explained by dynamical reversible trapping of the electron-hole pairs produced during irradiation on the different RE charge states as well as by RE segregation and pre-existing defects speciation in ABS glass structure.

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„CONCLUSION While cleaned silica-based glass surfaces have similar surface compositions, their susceptibility to strongly adsorbing organic contaminant s depends strongly on the glass composition and the cleaning procedure. For the three glass species exam-ined: silica, aluminoborosilicate, and sodalime glass , the glass surfaces behave similarly after chromic acid cleaning. They show significant differences in their properties followin g a dry cleaning procedure, such as pyrolysis or UV/ozone cleaning. The cleaned silica surfaces show a high susceptibility to adsorbing or-ganic contamination following pyrolysis cleaning, while the pyrolyzed sodalime glass appears to be virtually immune to strongly adsorbing organic molecules. Py-rolyzed aluminoborosilicate glass shows an intermediate susceptibility to adsorb-ing organic contaminants. The chromic acid cleaned glass surfaces all show an in-termediate susceptibility to contamination by adsorbed organic molecules. Thus, it may be an oversimplification to consider a clean glass surface as a high energy substrate that is bound to attract ambient organic contamination. The wettability behavior of the cleaned glass surfaces showed features associ-ated with their exposed chemical functions. The non-dispersive interaction energy between glass and water as a function of pH showed evidence of charging of the surface silanol groups. The point of zero charge for these surface chemical func-tions was observed at pH 3. An estimate of the non-dispersive interaction energy between glass and water at the point of zero charge enables a reasonable estima-tion of the density of surface silanol groups on the cleaned glass. The trends ob-served for the surface charge as a function of pH correlate with the observed sus-ceptibility for adsorbing organic contamination to the cleaned glass surfaces. Charge-adsorbed surfactant monolayers indicated a negative surface charge on the cleaned glass, as expected for silica-based glass surfaces at neutral pH. The wettability of grafted self-assembled octadecylsilane monolayers indicated high quality coatings on the cleaned glass surfaces. The coating quality was identical for all three glass species following chromic acid cleaning. The UV/ozone cleaned glass surfaces showed the highest coating quality on the silica surface, followed by the aluminoborosilicate surface and the sodalime glass surface. The trends in coating quality for all chromic acid cleaned surfaces and UV/ozone cleaned surfaces correlate with those seen for susceptibility to organic contamina-tion of the cleaned glass surfaces exposed to unpurified liquid octane. REFERENCES“. In Surface Contamination and Cleaning, 114–16. CRC Press, 2003. http://dx.doi.org/10.1201/9789047403289-17.

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Konferenzberichte zum Thema "Aluminoborosilicate glass"

Mika, Martin, Milan Patek, Jaroslav Maixner, Simona Randakova und Pavel Hrma. „The Effect of Temperature and Composition on Spinel Concentration and Crystal Size in High-Level Waste Glass“. In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1324.

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Abstract High-level radioactive wastes can be safely immobilized in alkali-aluminoborosilicate glass. To reduce the cost of the vitrification process, the waste loading should be maximized. This can be done by optimizing the process using mathematical modeling. The main objective of our work was to determine one of the necessary inputs for the mathematical model, which is the effect of temperature and composition on the concentration of spinel crystals and their size. We prepared six glasses with a different content of Li+, Na+, Mg2+, Ni2+, Cr3+, and SiIV and studied the effect of composition on the temperature dependence of spinel equilibrium concentration in glass by X-ray powder diffraction. The size of crystals was determined using optical microscopy. It was found that the temperature effect on spinel concentration significantly increased as the content of Ni2+ or Mg2+ in glass increased and slightly decreased as the content of Cr3+ increased and Li+ and Na+ content decreased. Both Ni2+ and Cr3+ acted as nucleating agents, producing a huge number of tiny spinel crystals (∼2 μm). In particular, Ni2+ seems to very significantly facilitate spinel crystallization.

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