Luminescent rare-earth ions doped Al2O3–Y2O3–SiO2 glass microspheres prepared by flame synthesis

Domanická, A.; Klement, Róbert; Prnová, Anna; Bodišová, Katarína; Galusek, Dušan

doi:10.1016/j.ceramint.2013.11.049

Cited by 14 publications

(4 citation statements)

References 20 publications

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“…Two methods of synthesis -Pechini method and the method of self-propagating hightemperature synthesis (SHS) were used to synthesize highly dispersed phosphors. Pechini method is based on the thermal destruction of gel which was obtained as a result of reaction of etherification between complexes formed by citric acid, ions of metal and ethyleneglucole with the obtaining of polymer in which atoms of metal are distributed maximum equally [2][3][4]. Method SHS is a thermal initiation of the reaction which occurs in a mixture of metal nitrates (oxidizer) with the "fuel" (glycine) and results in combustion with the formation of solid foam consisting of dispersed particles [5].…”

Section: Materials and Research Methodsmentioning

confidence: 99%

Luminescent Materials on the Basis of Yttrium Oxide and Yttrium Aluminum Garnet Used for Photodynamic Therapy

Bakhmetyev¹,

Lebedev²,

Vlasenko³

et al. 2015

KEM

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Finely-dispersed phosphors of Y2O3:Eu and Y3Al5O12:Eu have been synthesized with the help of Pechini method and the method of self-propagating high-temperature synthesis (SHS). During the synthesis of phosphors on the basis of Y2O3 carried out with Pechini method the size of crystallites increases with the enlargement of concentration of yttrium, but it decreases when the method of SHS is applied. The structure of phosphors on the basis of Y3Al5O12 (YAG) is strongly amorphized. This fact agrees with the data of XRD and with the prevalence of the band with λmax = 613 nm in the spectra of this phosphor. The enlargement of yttrium concentration in it promotes the amorphisation of yttrium aluminum garnet and the decrease of a crystal phase content. The sample of Y3Al5O12:Eu synthesized with Pechini method has the maximum intensity, while in conditions of excitement with “high-level” X-ray radiation which corresponds to the radiation of industrial medical X-ray apparatus, the phosphor of Y2O3:Eu synthesized with the help of SHS showed the largest intensity. Colloid solutions prepared with the use of the samples synthesized by SHS method revealed a higher steadiness and a lower disposition to the sedimentation process. The samples of Y2O3:Eu phosphor possessing the smallest size of particles and the highest intensity of X-ray luminescence are the most suitable for the creation of pharmacological drugs used for photodynamic therapy.

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Section: Materials and Research Methodsmentioning

confidence: 99%

Luminescent Materials on the Basis of Yttrium Oxide and Yttrium Aluminum Garnet Used for Photodynamic Therapy

Bakhmetyev¹,

Lebedev²,

Vlasenko³

et al. 2015

KEM

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“…Yttrium aluminosilicate (YAS) glass and glass ceramics have attracted much attention due to their numerous excellent properties [1][2][3][4][5][6][7][8]. The low thermal expansion coefficients (TECs) makes YAS glasses promising for application as adhesives for joining, especially for the non-oxide ceramics such as SiC and Si 3 N 4 [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…YAS system glass has interesting chemical durability [5,6], so the glass can prepare glass microspheres (including Yttrium-89) used to treat cancers [6,7]. YAS glasses and glass ceramics can accommodate high concentration of rare earth ions and have great potential for optical applications [8]. YAS glasses are also used in optical fibers and corresponding glass ceramics can be used as a matrix for storage of long-lived actinides [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Crystallization behavior and IR structure of yttrium aluminosilicate glasses

Zheng

Liu

et al. 2020

Journal of the European Ceramic Society

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The crystallization of four Y 2 O 3-Al 2 O 3-SiO 2 (YAS) glasses were investigated to prepare YAS glass ceramics precipitated singly/mainly Y 2 Si 2 O 7 or Y 4.67 (SiO 4) 3 O apatite, and to explore the crystallization difference between the stoichiometric parent glass (SPG) and non-stoichiometric parent glass (NSPG). The DSC results revealed that glass locating at the higher liquidus surface temperature has lower crystallization peak temperature, which indicating that the corresponding glass has higher crystallization potential to crystallize easily. Crystallization of the NSPG samples is along surface and caused by phase separation, while SPG sample is the surface crystallization at the first *Manuscript Click here to view linked References 2 exothermic peak temperature and overall crystallization at the second exothermic peak temperature. Glass ceramics only containing y-Y 2 Si 2 O 7 or Y 4.67 (SiO 4) 3 O apatite are obtained successfully, and which are illustrated by fitting FTIR spectra. These results can provide technical guide for controlling the crystallization process and the types of precipitated crystals in YAS glass for different application potentials.

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“…Strain rate sensitivity is not significantly affected by filler content. Domanická et al [104] exhibited that photoluminescence emission spectra of Nd-doped glass microspheres prepared by flame synthesis were not affected by SiO 2 content, while emission intensities of Erdoped glasses decreased with increasing SiO 2 . Particles-filled composites and special models developed for hollow microsphere filled composites are employed to analyse the experimental trends of thermal conductivity and dielectric constant by Zhu et al [105] The research of Lyubimov et al [106] dwells upon the comparative analysis of the methods of the glass microsphere metallization.…”

Section: The Latest Studies On Glass Microspheresmentioning

confidence: 99%

Glass Microspheres

Karasu

DEMİREL

ÖZTUVAN

et al. 2019

El-Cezeri Fen Ve Mühendislik Dergisi

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Glass microspheres are microscopic spheres of glass manufactured for a wide variety of uses in thermal insulation coating, putty, plastic casting polyester, radome, synthetic foam, adhesives, printed circuit board substrate, bowling, fan blades, and caulking materials, emulsion explosives, golf, sealant, pipeline insulation materials, artificial marble, PVC, low density oil drilling, light cement etc. Glass microspheres are usually between 1 and 1000 micrometres in diameter, although the sizes can range from 100 nanometres to 5 millimetres in diameter. Microspheres are spherical particles that can be distinguished into two categories; solid or hollow. This paper presented a general overview of glass microspheres.

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Luminescent rare-earth ions doped Al2O3–Y2O3–SiO2 glass microspheres prepared by flame synthesis

Cited by 14 publications

References 20 publications

Luminescent Materials on the Basis of Yttrium Oxide and Yttrium Aluminum Garnet Used for Photodynamic Therapy

Luminescent Materials on the Basis of Yttrium Oxide and Yttrium Aluminum Garnet Used for Photodynamic Therapy

Crystallization behavior and IR structure of yttrium aluminosilicate glasses

Glass Microspheres

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