Дисертації з теми "Glasse"
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Yu, Xiao Quan. "Superfluidity and localization in Bosonic glasses." Doctoral thesis, SISSA, 2012. http://hdl.handle.net/20.500.11767/4785.
Повний текст джерелаMUZI, ELISA. "Advanced nanostructured optical glasses and glass-ceramics for photonic applications." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2970993.
Повний текст джерелаGlasse, Benjamin [Verfasser]. "Monitoring of Metal Working Fluid Emulsion Quality by in-process Light Spectroscopy / Benjamin Glasse." Berlin : epubli GmbH, 2015. http://d-nb.info/1074331206/34.
Повний текст джерелаSPARTA', DEBORAH. "REE-BEARING CARBONATE SYSTEMS AT HIGH PRESSURE:AN EXPERIMENTAL STUDY." Doctoral thesis, Università degli Studi di Milano, 2022. http://hdl.handle.net/2434/910101.
Повний текст джерелаBOETTI, NADIA GIOVANNA. "Nd3+ doped phosphate glass optical fibre lasers." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2543408.
Повний текст джерелаLeuzzi, Luca. "Thermodynamics of glassy systems glasses, spin glasses and optimization /." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2002. http://dare.uva.nl/document/66345.
Повний текст джерелаWootton, Andrew Michael. "Silicon oxycarbide glasses and glass-ceramics." Thesis, University of Warwick, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310015.
Повний текст джерелаSCARPIGNATO, GERARDO CRISTIAN. "Design, fabrication and characterization of a optical power amplifier based on special glasses for LIDAR sources." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2543142.
Повний текст джерелаPONTREMOLI, CARLOTTA. "Mesoporous bioactive glasses as smart platform to stimulate bone regeneration." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2875741.
Повний текст джерелаBARI, ALESSANDRA. "Ion-containing mesoporous bioactive glass particles for tissue applications." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2753212.
Повний текст джерелаRappensberger, Csaba Ferenc. "Novel rare-earth aluminosilicate glasses and glass-ceramics." Thesis, University of Warwick, 1996. http://wrap.warwick.ac.uk/56937/.
Повний текст джерелаZhang, Endang. "Fibre reinforcement of oxynitride glasses and glass-ceramics." Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320017.
Повний текст джерелаBrüning, Ralf. "Structural relaxation and the glass transition in metallic glasses." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74345.
Повний текст джерелаIt is found that irreversible relaxation proceeds by many local shear-type motions involving the metal atoms, and that it is accompanied by a small densification. Reversible relaxation at high annealing temperatures entails the same microscopic processes, but it does not change the density of the glass. The type of atomic processes changes continuously as the annealing temperature is lowered, and at sufficiently low temperatures the distribution of metal atoms remains constant, so that reversible relaxation then proceeds via rearrangement of the metalloid atoms. This rearrangement leads to more ordered, but less isotropic atomic sites.
The second part of the thesis is concerned with the motion of the atoms in a metallic glass below and above the glass transition. Mossbauer spectroscopy allows the direct measurement of vibrational and diffusional motion. The increase of the amplitude of atomic vibration has the same temperature dependence as the increase in volume that marks the glass transition, thus the two processes are governed by the same mechanism. The directly measured diffusional motion is in agreement with macroscopic measurements of diffusion.
De, Mestral François. "Calcium phosphate glasses and glass-ceramics for medical applications." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65405.
Повний текст джерелаKansal, Ishu. "Diopside-fluorapatite-wollastonite based bioactive glasses and glass-ceramics." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14827.
Повний текст джерелаBioactive glasses and glass–ceramics are a class of biomaterials which elicit special response on their surface when in contact with biological fluids, leading to strong bonding to living tissue. This particular trait along with good sintering ability and high mechanical strength make them ideal materials for scaffold fabrication. The work presented in this thesis is directed towards understanding the composition-structure-property relationships in potentially bioactive glasses designed in CaOMgOP2O5SiO2F system, in some cases with added Na2O. The main emphasis has been on unearthing the influence of glass composition on molecular structure, sintering ability and bioactivity of phosphosilicate glasses. The parent glass compositions have been designed in the primary crystallization field of the pseudo-ternary system of diopside (CaO•MgO•2SiO2) – fluorapatite (9CaO•3P2O5•CaF2) – wollastonite (CaO•SiO2), followed by studying the impact of compositional variations on the structure-property relationships and sintering ability of these glasses. All the glasses investigated in this work have been synthesized via melt-quenching route and have been characterized for their molecular structure, sintering ability, chemical degradation and bioactivity using wide array of experimental tools and techniques. It has been shown that in all investigated glass compositions the silicate network was mainly dominated by Q2 units while phosphate in all the glasses was found to be coordinated in orthophosphate environment. The glass compositions designed in alkali-free region of diopside – fluorapatite system demonstrated excellent sintering ability and good bioactivity in order to qualify them as potential materials for scaffold fabrication while alkali-rich bioactive glasses not only hinder the densification during sintering but also induce cytotoxicity in vitro, thus, are not ideal candidates for in vitro tissue engineering. One of our bioglass compositions with low sodium content has been tested successfully both in vivo and in preliminary clinical trials. But this work needs to be continued and deepened. The dispersing of fine glass particles in aqueous media or in other suitable solvents, and the study of the most important factors that affect the rheology of the suspensions are essential steps to enable the manufacture of porous structures with tailor-made hierarchical pores by advanced processing techniques such as Robocasting.
Os vidros e vitrocerâmicos bioactivos são uma classe de biomateriais que induzem uma resposta especial à sua superfície quando em contacto com fluidos biológicos que conduz a uma forte ligação ao tecido vivo. Esta característica particular conjugada com uma boa aptidão para a sinterização e elevada resistência mecânica torna estes materiais ideais para a fabricação de estruturas de suporte à regeneração óssea. O trabalho apresentado nesta tese pretende dar um contributo para uma melhor compreensão das relações entre composição-estrutura-propriedades em vidros potencialmente bioactivos com composições no sistema CaOMgOP2O5SiO2F, em alguns casos com a adição de Na2O. O estudo da influência exercida pela composição do vidro na estrutura molecular, capacidade de sinterização e nível de bioactividade dos vidros fosfosilicatados foi objecto de especial atenção. As composições vítreas foram concebidas no campo da cristalização primária do pseudo sistema ternário do diópsido (CaO•MgO•2SiO2) – fluorapatite (9CaO•3P2O5•CaF2) – wollastonite, e estudou-se o impacto das variações composicionais na estrutura, nas propriedades e na capacidade de sinterização destes vidros. Todos os vidros investigados neste trabalho foram preparados por fusão e fritagem e caracterizados quanto à sua estrutura molecular, capacidade de sinterização, degradação química e bioactividade, usando uma grande variedade de técnicas experimentais. Ficou demonstrado que em todas as composições de vidro investigadas a rede de silicato era dominada principalmente por unidades Q2 enquanto o fosfato se encontrava coordenado em ambiente de ortofosfato. As composições de biovidros isentas de alcalinos do sistema diópsido–fluorapatite demonstram possuir excelente capacidade de sinterização e elevados níveis de bioactividade, atributos que os qualificam como materiais promissores para a fabricação de estruturas de suporte à regeneração de tecidos ósseos, enquanto os vidros bioactivos contendo alcalinos foram mais difíceis de densificar durante a sinterização e induziram citotoxicidade in vitro, não sendo candidatos ideais para a engenharia de tecidos. Uma das nossas composições de biovidro com um baixo teor de sódio foi testada com sucesso tanto in vivo como em ensaios clínicos preliminares. Mas este trabalho precisa de ser continuado e aprofundado. A dispersão de fritas moídas em meio aquoso ou outros solventes adequados, e o estudo dos factores mais relevantes que condicionam a reologia das suspensões são etapas essenciais para viabilizar o processo de fabrico de suportes porosos com estruturas hierárquicas de poros feitas por medida através de técnicas de processamento avançadas tais como o Robocasting.
Goel, Ashutosh. "Clinopyroxene based glasses and glass-ceramics for functional applications." Doctoral thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/2323.
Повний текст джерелаAs piroxenas são um vasto grupo de silicatos minerais encontrados em muitas rochas ígneas e metamórficas. Na sua forma mais simples, estes silicatos são constituídas por cadeias de SiO3 ligando grupos tetrahédricos de SiO4. A fórmula química geral das piroxenas é M2M1T2O6, onde M2 se refere a catiões geralmente em uma coordenação octaédrica distorcida (Mg2+, Fe2+, Mn2+, Li+, Ca2+, Na+), M1 refere-se a catiões numa coordenação octaédrica regular (Al3+, Fe3+, Ti4+, Cr3+, V3+, Ti3+, Zr4+, Sc3+, Zn2+, Mg2+, Fe2+, Mn2+), e T a catiões em coordenação tetrahédrica (Si4+, Al3+, Fe3+). As piroxenas com estrutura monoclínica são designadas de clinopiroxenes. A estabilidade das clinopyroxenes num espectro de composições químicas amplo, em conjugação com a possibilidade de ajustar as suas propriedades físicas e químicas e a durabilidade química, têm gerado um interesse mundial devido a suas aplicações em ciência e tecnologia de materiais. Este trabalho trata do desenvolvimento de vidros e de vitro-cerâmicos baseadas de clinopiroxenas para aplicações funcionais. O estudo teve objectivos científicos e tecnológicos; nomeadamente, adquirir conhecimentos fundamentais sobre a formação de fases cristalinas e soluções sólidas em determinados sistemas vitro-cerâmicos, e avaliar a viabilidade de aplicação dos novos materiais em diferentes áreas tecnológicas, com especial ênfase sobre a selagem em células de combustível de óxido sólido (SOFC). Com este intuito, prepararam-se vários vidros e materiais vitro-cerâmicos ao longo das juntas Enstatite (MgSiO3) - diopsídio (CaMgSi2O6) e diopsídio (CaMgSi2O6) - Ca - Tschermak (CaAlSi2O6), os quais foram caracterizados através de um vasto leque de técnicas. Todos os vidros foram preparados por fusão-arrefecimento enquanto os vitro-cerâmicos foram obtidos quer por sinterização e cristalização de fritas, quer por nucleação e cristalização de vidros monolíticos. Estudaram-se ainda os efeitos de várias substituições iónicas em composições de diopsídio contendo Al na estrutura, sinterização e no comportamento durante a cristalização de vidros e nas propriedades dos materiais vitro-cerâmicos, com relevância para a sua aplicação como selantes em SOFC. Verificou-se que Foi observado que os vidros/vitro-cerâmicos à base de enstatite não apresentavam as características necessárias para serem usados como materiais selantes em SOFC, enquanto as melhores propriedades apresentadas pelos vitro-cerâmicos à base de diopsídio qualificaram-nos para futuros estudos neste tipo de aplicações. Para além de investigar a adequação dos vitro-cerâmicos à base de clinopyroxene como selantes, esta tese tem também como objetivo estudar a influência dos agentes de nucleação na nucleação em volume dos vitro-cerâmicos resultantes á base de diopsídio, de modo a qualificá-los como potenciais materiais hopedeiros de resíduos nucleares radioactivos.
The pyroxenes are a wide spread group rock-forming silicate minerals found in many igneous and metamorphic rocks. They are silicates that, in their simplest form, contain single SiO3 chains of linked SiO4 tetrahedra. The general chemical formula for pyroxenes is M2M1T2O6, where M2 refers to cations in a generally distorted octahedral coordination (Mg2+, Fe2+, Mn+, Li+, Ca2+, Na+), M1 to cations in a regular octahedral coordination (Al3+, Fe3+, Ti4+, Cr3+, V3+, Ti3+, Zr4+, Sc3+, Zn2+, Mg2+, Fe2+, Mn2+), and T to tetrahedrally coordinated cations (Si4+, Al3+, Fe3+). Monoclinic pyroxenes are called clinopyroxenes. The stability of clinopyroxenes over a broad spectrum of chemical compositions, in conjunction with the possibility of achieving desired physical properties and high chemical durability, has generated a worldwide interest due to their applications in material science and technology. The present work deals with the development of clinopyroxene based glasses and glass-ceramics for functional applications. The objective of the study was dual, both scientific and technological; particularly to gain fundamental knowledge on the formation of crystalline phases and solid solutions in selected glass-ceramic systems, and to evaluate the feasibility for application of new materials in different technological areas with emphasis on sealing in solid oxide fuel cells (SOFC). In this pursuit, various glasses and glass-ceramics along Enstatite (MgSiO3) - Diopside (CaMgSi2O6) and Diopside (CaMgSi2O6) – Ca – Tschermak (CaAlSi2O6) joins have been prepared and characterized by a wide array of characterization techniques. All the glasses were prepared by melt-quenching technique while glass-ceramics were produced either by sintering and crystallization of glass powders or by nucleation and crystallization in monolithic glasses. Furthermore, influence of various ionic substitutions/additions in Alcontaining diopside on the structure, sintering and crystallization behaviour of glasses and properties of resultant glass-ceramics has been investigated, in relevance with final application as sealants in SOFC. It has been observed that enstatite based glasses/glass-ceramics do not exhibit requisite characteristics in order to qualify for the job of sealing in SOFC while the superior properties exhibited by diopside based glass-ceramics qualify them for further experimentation as SOFC sealants. Apart from investigating the suitability of clinopyroxene based glass-ceramics as sealants, this thesis also aims to study the influence of nucleating agents on the volume nucleation in the resultant diopside based glass-ceramics so as to qualify them for further experimentation as hosts for radioactive nuclear wastes.
Medina, Francelys A. Lanagan Michael Thomas. "Impedance spectroscopy studies of silica-titania glasses and glass-ceramics." [University Park, Pa.] : Pennsylvania State University, 2009. http://etda.libraries.psu.edu/theses/approved/PSUonlyIndex/ETD-4566/index.html.
Повний текст джерелаMao, Ming. "Structural relaxation and the glass transition in metal-metal glasses." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41708.
Повний текст джерелаIrreversible structural relaxation leads to densification and enthalpy release. Shear-like atomic motion enhances local atomic order, highlighting the atomic processes during the irreversible relaxation. Reversible structural relaxation involves two partly overlapping processes initiated at different temperatures, which are characterized by the solid and liquid atomic mobilities, respectively. Interatomic positional exchanges between Cu and Ni atoms change the local structure and are active during the reversible relaxation at low temperatures, which are also partly responsible for the irreversible relaxation. Above 500 K, shear-like atomic movements characterize the reversible relaxation, involving all three atomic species in a length scale of a few near-neighbor atomic shells. The overall density is unchanged during reversible relaxation.
The strong compositional dependence of the glass transition in the ternary glasses indicates an intimate association of the glass transition with interatomic bondings among different atomic species. The atomic motion from room temperature up to above the glass transition temperature, measured by the Mossbauer spectroscopy, is macroscopically tracked by the volume expansion and the enthalpy evolution. The glass transition occurs when the length scale of the atomic motion expands so rapidly that the interatomic potential can no longer maintain the on-site atomic vibration. The rapid development of translational atomic motion upon approaching the glass transition is reflected by the dramatic enhancement of the diffusive atomic motion.
Żalin̄ska, Beata. "Bismuth-based glasses, glass-ceramics and composites for microwave applications." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.537987.
Повний текст джерелаBeatty, Kirk Matthew 1962. "Processing of copper aluminosilicate glasses to produce glass-copper structures." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/278284.
Повний текст джерелаWilliams, Kyle Fiona Eirwen. "Moessbauer spectroscopic studies of tin in glass." Thesis, University of Liverpool, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283059.
Повний текст джерелаHuang, Hong. "Synthesis and devitrification of high glass-forming ability bulk metallic glasses." Thesis, University of Surrey, 2007. http://epubs.surrey.ac.uk/842676/.
Повний текст джерелаPonsot, Inès. "Glasses and Glass-Ceramic Components from Inorganic Waste and Novel Processing." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424636.
Повний текст джерелаGrazie alle regole e normative ambientali europee istituite, il riciclaggio dei rifiuti è diventato una problematica sempre più rilevante. Per gli impianti di produzione, in particolare quelli che producono rifiuti pericolosi, le spese connesse allo smaltimento sono drasticamente aumentate negli ultimi decenni. Nel lavoro proposto, vari rifiuti, pericolosi o no, vengono utilizzati per elaborare diverse composizioni di vetroceramiche. Si distinguono rottami di vetro della produzione di finestre, di contenitori farmaceutici e di tubi catodici. I rifiuti non vetrosi invece sono calce esausta da residui di sistemi di filtrazione di fumi, scorie metallurgiche da leghe ferrose e non e ceneri da inceneritori. E' presentata nel presente lavoro la ricerca di un metodo di trattamento ad alta temperatura (minima 800 ° C) efficace per stabilizzare chimicamente il prodotto finale, tramite i diversi processi di sinterizzazione diretta, sinter-cristallizzazione e vetrificazione. Sono stati studiati gli effetti di ogni rifiuto sulle proprietà meccaniche del prodotto finale, ma anche le nuove funzionalità ottenute attraverso le sinergie risultanti dalla loro miscela. Miscele calibrate hanno permesso di sviluppare prodotti interessanti per applicazioni edilizie moderne, come le piastrelle porose e pannelli leggeri destinati all’isolamento.
Mahfoudhi, Mohamed. "Eu3+ ion environment modification by Electron and femtosecond laser irradiation in metaphosphate and polyphosphate glasses." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX066.
Повний текст джерелаRare Earth (RE) doped phosphate glasses are attractive materials in optic due to their low glass transition temperature and their high ability to dissolve rare earth ions compared to silicate glasses. In this work, we are interested in understanding the mechanisms leading to the structural modification of zinc polyphosphate and metaphosphate glasses under irradiation with the aim of controlling the environment of rare earth ions (in particular Eu3+ ions) by irradiation. We compared the effects obtained under electron and femtosecond laser irradiation by varying the dose and electron energy (700 keV and 2.5 MeV), the laser repetition rate as well as the glass compositions that contain different alkaline and alkaline earth ions (Na, Li, K and Mg) and Zn contents.We have demonstrated the decrease of the Eu3+ site symmetry, the increase of the sites dispersion as well as an effective reduction of Eu3+ to Eu2+ under electron irradiation.The presence of Zn attenuates the variation of the local order around the rare earth, while the vitreous network is less stable under irradiation. The formation of Eu2+ ions (under two types of high and low symmetry environments) is further enhanced in the presence of Zn and using 700 keV electrons. The femtosecond laser at 10 KHz gives causes crystallization of metaphosphate glasses without reduction of Eu3+ ions
Kemp, Andrew Patrick. "The electrical and other physical properties of haloborate glasses and glass-ceramics." Thesis, University of Warwick, 1988. http://wrap.warwick.ac.uk/109948/.
Повний текст джерелаDIANAT, BEHNOOD. "Vetri calcogenuri per applicazioni di commutazione di memorie con particolare riguardo agli aspetti di modellazione e simulazioni." Doctoral thesis, Università degli studi di Modena e Reggio Emilia, 2021. http://hdl.handle.net/11380/1244338.
Повний текст джерелаG??n, B??lent Materials Science & Engineering Faculty of Science UNSW. "Crystallization behaviour and rheological properties of a Mg-Cu-Y bulk metallic glass." Awarded by:University of New South Wales. Materials Science & Engineering, 2008. http://handle.unsw.edu.au/1959.4/43352.
Повний текст джерелаVeligatla, Medha. "Glass Forming Ability, Magnetic Properties, and Mechanical Behavior of Iron-Based and Cobalt-Based Metallic Glasses." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc699947/.
Повний текст джерелаMasoud, Muayad. "Diffusivity and ionic conductivity in lithium niobate and related glasses and glass composites." [S.l.] : [s.n.], 2005. http://edok01.tib.uni-hannover.de/edoks/e01dh05/504933442.pdf.
Повний текст джерелаZheng, Na. "Ni-free Ti-based Bulk Metallic Glasses: Glass Forming Ability and Mechanical Behavior." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-119765.
Повний текст джерелаKanwal, Nasima. "Novel zinc containing phosphate glasses for glass-ionomer cements for bone cement applications." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8440.
Повний текст джерелаSulaiman, Ismail. "Approches fondamentales et expérimentales des processus d'autovaporisation et de modification structurelle de matériaux surchauffés pendant la détente instantanée controlée vers le vide." Phd thesis, Université de La Rochelle, 2013. http://tel.archives-ouvertes.fr/tel-01066134.
Повний текст джерелаAykol, Muratahan. "Nano-scale Phase Separation And Glass Forming Ability Of Iron-boron Based Metallic Glasses." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609825/index.pdf.
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Hadzifejzovic, Emina. "Electrical and structural aspects of Li-ion conducting phosphate based glasses and glass ceramics." Thesis, Queen Mary, University of London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408396.
Повний текст джерелаGalstyan, Ani. "The role of glass modifiers in the solubility of Tm3+ ions in As2S3 glasses." Doctoral thesis, Université Laval, 2016. http://hdl.handle.net/20.500.11794/27110.
Повний текст джерелаOver the years a number of chalcogenide glass compositions have been studied as host matrices for Rare Earth (RE) ions. However, it still remains a great challenge to obtain a glass matrix with high solubility of RE ions and to fabricate a RE doped chalcogenide glass fiber with good optical quality. The present PhD thesis focuses on the study of new glassy systems as host matrices for doping of RE ions, which allowed to obtain RE doped optical fibers transparent in near and middle IR. Studied glassy systems were based on well-known arsenic sulphide (As2S3) glasses co-doped with Tm3+ ions and different glass modifiers. Firstly, the addition of Gallium (Ga) ions as co-dopants was examined and their influence on the emission properties of Tm ions was explored. With the incorporation of Ga into the host, Tm doped As2S3 glasses display three strong emission bands at 1.2 μm (1H5→3H6), 1.4 μm (3H4→3F4) and 1.8 μm (3F4→3H6) under excitation wavelengths of 698 nm and 800 nm. Despite the very small glass forming region of the system Ga-As-S we could optimise the concentration ratio of Ga and Tm to achieve the highest possible photoluminescence efficiency. From the optimal composition, Tm3+ doped Ga-As-S fiber was drawn and its luminescence properties were studied. Through structural characterisation of Tm doped Ga-As-S glasses, using Raman spectroscopy and Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy at As K-edge, Ga K-edge and Tm L3-edge, a formation mechanism has been proposed for this glassy system and it was correlated with luminescence features of Tm ions. In the second part, the modification of Tm3+ doped As2S3 glasses with the incorporation of halides (namely Iodine (I2)) was investigated, as a method for tailoring the process parameters for purification, in order to obtain a high purity glass matrix via chemical distillation. All three of above mentioned emission bands were observed for this system as well, under the 800 nm of excitation wavelength. Optical, thermal and structural properties of these glassy systems were characterized experimentally depending on the concentration of I2 and Tm in the glass, where the attention was concentrated on two principal aspects: the influence of the concentration of I2 on the intensity of emission of Tm and the mechanisms responsible for the increase of the solubility of Tm ions in As2S3 glass matrix with addition of I2.
Fredholm, Yann Christophe. "Development and characterisation of strontium-containing bioactive glasses and aluminium-free glass polyalkenoate cements." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/6201.
Повний текст джерелаUhlmann, Eugenie Victoria. "Glass forming ability, structure and spectroscopic properties of silica-free calcium aluminate based glasses." Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187097.
Повний текст джерелаDrewitt, James W. E. "Structure of copper halide melts, rare earth chalcogenide glasses and glassy germania at high pressure." Thesis, University of Bath, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516958.
Повний текст джерелаKusumoto, Hiroko. "Characterisation of Mg, Sr, and Zn containing fluoro-aluminosilicate glasses and their glass polyalkenoate cements." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/5509.
Повний текст джерелаXie, Fangtong [Verfasser], Emanuel [Akademischer Betreuer] Ionescu, and Aldo R. [Akademischer Betreuer] Boccaccini. "Bioactive Silicon Oxycarbide Based Glasses & Glass-ceramics / Fangtong Xie ; Emanuel Ionescu, Aldo R. Boccaccini." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2020. http://d-nb.info/1207075566/34.
Повний текст джерелаStolpe, Moritz [Verfasser]. "Synchrotron x-ray diffraction studies of bulk metallic glass forming liquid and glasses / Moritz Stolpe." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2020. http://d-nb.info/1218075481/34.
Повний текст джерелаLepine, Eric. "GLASSES AND GLASS-CERAMICS TRANSPARENT IN THE INFRARED RANGE TO BE USED AS OPTICAL SENSORS." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/193808.
Повний текст джерелаChinnam, Rama Krishna Satish [Verfasser], and Aldo [Akademischer Betreuer] Boccaccini. "Functional Glasses and Glass-ceramics Derived from Industrial Waste / Chinnam Rama Krishna Satish. Gutachter: Aldo Boccaccini." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2014. http://d-nb.info/1054731667/34.
Повний текст джерелаMalakho, Artem. "Second order optical nonlinearity in the crystals, glasses and glass-ceramic oxides containing vanadium and niobium." Bordeaux 1, 2006. http://www.theses.fr/2006BOR13155.
Повний текст джерелаSuh, Jin-Yoo Johnson W. L. Johnson W. L. "Fracture toughness study on bulk metallic glasses and novel joining method using bulk metallic glass solder /." Diss., Pasadena, Calif. : California Institute of Technology, 2009. http://resolver.caltech.edu/CaltechETD:etd-01062009-001830.
Повний текст джерелаParupudi, Aarti. "Singing wine glasses." Kansas State University, 2015. http://hdl.handle.net/2097/19706.
Повний текст джерелаComputing and Information Sciences
Daniel A. Andresen
One among the many inventions of Benjamin Franklin is the Glass Armonica, a musical instrument whose sound source was a series of resonating glass vessels. However, the Irish musician Richard Pockrich is typically credited as the first to play an instrument composed of glass vessels, called the Glass Harp in 1741, by rubbing his fingers around the rims. In this project “Singing Wine Glasses”, the principle of Franklin’s glass armonica is demonstrated with a wine glass. One hand is used to hold the glass steady at the base. The rim of glass is gently pressed with a moistened finger of the other hand and drawn in a circle around. When the pressure and amount of moisture are just right, the slight friction between the finger and the rim of glass causes vibrations in the sides of the glass. At a particular frequency, called the resonant frequency, the sides of the glass will vibrate most easily. The resonant frequency of wine glasses is typically within the range of human hearing (20-20,000 Hz), so the resulting resonant vibration is heard as a tone. The glass starts to sing when the vibration gets the molecules moving at their natural frequency. The resonant frequency changes with the amount of water filled in the glass. This android application deals with virtual glasses that serve the purpose of wine glasses filled with different amounts of water. Swiping on the glass edges would produce music, as per Franklin’s principle. The users would be free to select the number of glasses they want to play, and the amount of water-level in each glass. This application would also come with an enhanced feature of sustaining a particular note until the finger is released from the glass.
Uhlenhaut, Dirk Ingmar. "Structure-property correlations in glassy Mg-Cu-Y, and corrosion resistance of novel Mg-Al-Ga glasses /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17941.
Повний текст джерелаKlenell, Simon. "Frigger tactics." Thesis, Konstfack, Keramik & Glas, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-3350.
Повний текст джерелаStabler, Christina [Verfasser], Emanuel [Akademischer Betreuer] Ionescu, and Martin [Akademischer Betreuer] Heilmaier. "Mechanical and Thermal Properties of SiOC-based Glasses and Glass Ceramics / Christina Stabler ; Emanuel Ionescu, Martin Heilmaier." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2019. http://d-nb.info/1187444359/34.
Повний текст джерелаBarker, Michael Francis. "Crystallization of lithium alumino-silicate glasses and the formation of photomachinable glass ceramics of controlled thermal expansion." Thesis, University of Sheffield, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362506.
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