Pour voir les autres types de publications sur ce sujet consultez le lien suivant : Glass Formation in Ceramics.

Articles de revues sur le sujet « Glass Formation in Ceramics »

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les 50 meilleurs articles de revues pour votre recherche sur le sujet « Glass Formation in Ceramics ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Parcourez les articles de revues sur diverses disciplines et organisez correctement votre bibliographie.

1

PARK, JONGEE, and ABDULLAH OZTURK. "BIOACTIVITY OF APATITE–WOLLASTONITE GLASS-CERAMICS PRODUCED BY MELTING CASTING." Surface Review and Letters 20, no. 01 (2013): 1350010. http://dx.doi.org/10.1142/s0218625x13500108.

Texte intégral
Résumé :
Glass-ceramics containing only apatite and wollastonite crystals were produced in the system MgO-CaO-SiO2-P2O5-F by the melt casting process. The bioactivity of the glass-ceramics was determined by immersing the glass-ceramics in a simulated body fluid (SBF) and by assessing the resulting apatite formation on the free surface after various immersion durations. A 12-μm-thick apatite layer formed on the surface of the glass-ceramic containing only apatite crystals after 20 days immersion in SBF. However, the thickness of the apatite layer formed on the surface of the glass-ceramic containing apa
Styles APA, Harvard, Vancouver, ISO, etc.
2

Márquez Aguilar, P. A., M. Vlasova, E. Moreno Bernal, M. Kakazey, R. Guardian Tapia, and A. Castro Hernández. "Features of laser drilling of porous aluminosilicate ceramics." MRS Advances 5, no. 59-60 (2020): 3045–54. http://dx.doi.org/10.1557/adv.2020.435.

Texte intégral
Résumé :
AbstractStudies have shown that local laser heating/“drilling” of composite large-porous ceramics consisting of aluminosilicates and glass phase is based on melting and ablation processes that lead to the formation of holes in a porous specimen. The interaction of the components of the composite in the high-temperature heating zone is accompanied by the formation of glass-phase melt of new composition. The advance of the melt deep into the sample along channel-like pores of the main ceramic material depends on the viscosity of the melt (i.e., the irradiation mode) and the cooling rate of the m
Styles APA, Harvard, Vancouver, ISO, etc.
3

Rampf, Markus, and Marc Dittmer. "Controlling Internal Crystallization of Li2Si2O5 Glass-Ceramics Using SnO2." Glass Europe 3 (May 8, 2025): 89–103. https://doi.org/10.52825/glass-europe.v3i.2593.

Texte intégral
Résumé :
The impact of adding SnO2 on the nucleation and crystallization of glasses within the SiO2-Li2O-Al2O3-K2O glass system is investigated. Minor amounts of SnO2 (0.01 mol%) yield significant differences in the crystallization sequence and microstructure of these glass-ceramics. Adding SnO2 instigates the formation of Li2SiO3 as the primary crystal phase along with Li2Si2O5 at temperatures below 600 °C. Annealing at 950 °C for 10 minutes yields glass-ceramics with Li2Si2O5 as the sole crystalline phase. However, SnO2 cannot be empirically deduced as having a direct role in nucleation. Further, the
Styles APA, Harvard, Vancouver, ISO, etc.
4

Deshpande, V. K., and V. U. Rahangdale. "Study of PbTiO3-Based Glass Ceramics Containing SiO2." ISRN Ceramics 2012 (November 4, 2012): 1–5. http://dx.doi.org/10.5402/2012/823903.

Texte intégral
Résumé :
Glass samples with composition 50PbO : 25TiO2 : (25-X) B2O3 : XSiO2 (with X = 0, 1.5, 2.5, 3.5, and 5 mol%) were prepared by conventional quenching technique. These glass samples were converted to glass ceramics by the two-stage heat treatment schedule. Formation of ferroelectric lead titanate phase in the glass ceramics was confirmed from the XRD. The density, CTE, and dielectric constant of the glass and glass-ceramic samples were measured. The glass-ceramic sample containing 2.5 mol% SiO2 exhibited the highest dielectric constant. The SEMs of glass-ceramic samples were studied. The P-E hyst
Styles APA, Harvard, Vancouver, ISO, etc.
5

Kim, Dong Seon, Jin Ho Lee, and Ki Soo Lim. "Formation of Eu-Doped CaF2 Naonocrystals in Glass-Ceramics by Infrared Laser Irradiation." Applied Mechanics and Materials 749 (April 2015): 211–14. http://dx.doi.org/10.4028/www.scientific.net/amm.749.211.

Texte intégral
Résumé :
Glass-ceramic was precipitated on the oxyfluoride glass surface by thermal annealing with a CO2 laser and a heat gun. Micro x-ray diffraction showed the formation of CaF2 ain the exposed region to the laser. Dopant distribution in glass ceramics was probed by confocal fluorescence microscope by observing much strong emission from Eu ions than the glassy area under 405 nm excitation. Much enhanced visible emissions under 365 nm excitation also showed well incorporation of Eu3+ ions into a crystalline environment.
Styles APA, Harvard, Vancouver, ISO, etc.
6

Margha, Fatma, and Amr Abdelghany. "Bone bonding ability of some borate bio-glasses and their corresponding glass-ceramic derivatives." Processing and Application of Ceramics 6, no. 4 (2012): 183–92. http://dx.doi.org/10.2298/pac1204183m.

Texte intégral
Résumé :
Ternary borate glasses from the system Na2O?CaO?B2O3 together with soda-lime-borate samples containing 5 wt.% of MgO, Al2O3, SiO2 or P2O5 were prepared. The obtained glasses were converted to their glass-ceramic derivatives by controlled heat treatment. X-ray diffraction was employed to investigate the separated crys?talline phases in glass-ceramics after heat treatment of the glassy samples. The glasses and corresponding glass-ceramics after immersion in water or diluted phosphate solution for extended times were characterized by the grain method (adopted by several authors and recommended by
Styles APA, Harvard, Vancouver, ISO, etc.
7

Gautam, C. R., Devendra Kumar, Om Parkash, and O. P. Thakur. "Dielectric Properties of La2O3 Doped Composite (PbxSr1−x)TiO3 Borosilicate Glass Ceramic." Journal of Ceramics 2013 (December 5, 2013): 1–9. http://dx.doi.org/10.1155/2013/879758.

Texte intégral
Résumé :
Ferroelectric (PbxSr1−x)TiO3 (PST) perovskite phase has been crystallized in borosilicate glassy matrix with a suitable choice of composition and heat treatment schedule. La2O3 is a donor dopant for PST and can make it semiconducting. Dispersion of semiconducting perovskite phase in insulating glassy matrix in glass-ceramic samples may lead to the formation of space charge polarization around crystal-glass interface, leading to a high value of effective dielectric constant, εr. Therefore, with the aim of the developing glass ceramics with high dielectric constant, glasses in the system 64[(Pbx
Styles APA, Harvard, Vancouver, ISO, etc.
8

Zhao, Meng Jie, Xiang Yu Zou, Qin Lei Wei, Shuo Meng, Hong Bo Zhang, and Chun Hui Su. "Preparation and Characterization of Na2O-Y2O3-P2O5-SiO2 Transparent Glass Ceramics." Solid State Phenomena 281 (August 2018): 692–98. http://dx.doi.org/10.4028/www.scientific.net/ssp.281.692.

Texte intégral
Résumé :
Transparent glass ceramics containing Na3.6Y1.8(PO4)3 crystals were successfully synthesized using high temperature melting quenching and subsequent heat treatment of the precursor glass with a composition 15Na2CO3-3Y2O3-45SiO2-31H3BO3- 5.4P2O5-0.6Sb2O3 (mol%). The impact of heat treatment is investigated in detail. The glass sample was tested by differential scanning calorimetry analysis to determine the heat treatment system. The ideal heat-treated condition is at 650°C for 2 h. The structure and morphology properties were systematically analyzed by recording X-ray diffraction patterns and s
Styles APA, Harvard, Vancouver, ISO, etc.
9

Riaz, Madeeha, Rehana Zia, Farhat Saleemi, Farooq Bashir, Tousif Hossain, and Zohra Kayani. "In vitro evaluation of bioactivity of SiO2-CaO-P2O5-Na2O-CaF2-ZnO glass-ceramics." Materials Science-Poland 32, no. 3 (2014): 364–74. http://dx.doi.org/10.2478/s13536-014-0206-0.

Texte intégral
Résumé :
AbstractZinc is an essential trace element that stimulates bone formation but it is also known as an inhibitor of apatite crystal growth. In this work addition of ZnO to SiO2-CaO-P2O5-Na2O-CaF2 glass-ceramic system was made by conventional melt-quenching technique. DSC curves showed that the addition of ZnO moved the endothermic and exothermic peaks to lower temperatures. X-ray diffraction analysis did not reveal any additional phase caused by ZnO addition and showed the presence of wollastonite and hydroxyapatite crystalline phases only in all the glass-ceramic samples. As bio-implant apatite
Styles APA, Harvard, Vancouver, ISO, etc.
10

Zarabian, Banafsheh, Bijan Eftekhari Yekta, and Sara Banijamali. "Crystallization behavior and ionic conductivity of NASICON type glass-ceramics containing different amounts of B2O3." Synthesis and Sintering 3, no. 1 (2023): 14–19. http://dx.doi.org/10.53063/synsint.2023.31141.

Texte intégral
Résumé :
In this research, glass-ceramics belonging to the system of Li2O-TiO2-P2O5 were prepared by the addition of different amounts of B2O3. The glass formation ability of the starting glass materials along with the crystallization trend as well as ionic conductivity of the corresponding glass-ceramics were also examined. Starting glasses were obtained through the melt quenching technique and glass-ceramics specimens were prepared through one-step heat treatment. The glass-ceramic samples were then examined through X-ray diffractometry, differential thermal analysis, electrochemical impedance spectr
Styles APA, Harvard, Vancouver, ISO, etc.
11

Intawin, Pratthana, Sukum Eitssayeam, Gobwute Rujijanagul, Tawee Tunkasiri, and Kamonpan Pengpat. "Crystallization Kinetics and Heat Treatment Temperature on Microstructure of Na2O-CaO-P2O5-TiO2 Glass System." Key Engineering Materials 766 (April 2018): 151–56. http://dx.doi.org/10.4028/www.scientific.net/kem.766.151.

Texte intégral
Résumé :
Bioactive glass ceramics from Na2O-CaO-P2O5-TiO2 system have been fabricated by conventional melt quenching method. In order to change the fabricated glass to glass ceramic samples, a heat treatment technique was employed using temperatures ranging between 700 and 900°C for 2 h. Glass transition and crystallization temperature were analyzed via differential thermal analyzer (DTA). In addition, phase formation and microstructure of the glass-ceramics were also investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). From the crystallization kinetics, the crystallization r
Styles APA, Harvard, Vancouver, ISO, etc.
12

Kraipok, Arnon, Teerapong Mamanee, Jetsada Ruangsuriya, Poomirat Nawarat, and Wilaiwan Leenakul. "Phase Formation, Mechanical Strength, and Bioactive Properties of Lithium Disilicate Glass–Ceramics with Different Al2O3 Contents." Materials 15, no. 23 (2022): 8283. http://dx.doi.org/10.3390/ma15238283.

Texte intégral
Résumé :
Owing to its excellent mechanical properties and aesthetic tooth-like appearance, lithium disilicate glass–ceramic is more attractive as a crown for dental restorations. In this study, lithium disilicate glass–ceramics were prepared from SiO2–Li2O–K2O–P2O5–CeO2 glass systems with various Al2O3 contents. The mixed glass was then heat-treated at 600 °C and 800 °C for 2 h to form glass–ceramic samples. Phase formation, microstructure, mechanical properties and bioactivity were investigated. The phase formation analysis confirmed the presence of Li2Si2O5 in all the samples. The glass–ceramic sampl
Styles APA, Harvard, Vancouver, ISO, etc.
13

Abramov, Alexey N., Aleksei N. Gur'Yanov, Alexey S. Lobanov, Mikhail V. Yashkov, Alexander D. Plekhovich, and A. M. Kut'In. "Obtaining and investigation of optical characteristics of fiber light guides with a core based on alumosilicate glass ceramics alloyed with chrome." Applied photonics 9, no. 1 (2023): 54–72. http://dx.doi.org/10.15593/2411-4367/2022.1.03.

Texte intégral
Résumé :
A technique has been developed for producing optical fibers doped with chromium ions based on chromium-doped aluminosilicate glass-ceramics. A technique is proposed for measuring luminescence spectra during the formation of a glass-ceramic core in Cr3+-activated aluminosilicate fibers.
Styles APA, Harvard, Vancouver, ISO, etc.
14

Pellicer-Porres, Julio, Alfredo Segura, Gema Martínez-Criado, Ulises Rodríguez-Mendoza, and Víctor Lavín. "Formation of nanostructures in Eu3+ doped glass–ceramics: an XAS study." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C959. http://dx.doi.org/10.1107/s2053273314090408.

Texte intégral
Résumé :
Lead-aluminosilicate oxyfluoride transparent glass–ceramics doped with RE3+ ions have been revealed to be unique in the field of optical material engineering. This kind of material consists of a beta_x000C_-PbF2 fluoride nanocrystalline phase in an aluminosilicate glassy amorphous phase. In this way, the macroscopic properties of this material are characteristic of aluminosilicate glass, whereas the spectroscopic properties of the RE3+ ions remain those of low-phonon-energy fluoride crystals. The optical properties of the RE3+ ions, and therefore their interest for photonic applications, depen
Styles APA, Harvard, Vancouver, ISO, etc.
15

Haily, E., L. Bih, A. El Bouari, A. Lahmar, M. El Marssi, and B. Manoun. "Effect of the Ba/K ratio on structural, dielectric and energy storage properties of BaO–K2O–TiO2–P2O5 glass-ceramics." Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B 61, no. 6 (2020): 213–21. http://dx.doi.org/10.13036/17533562.61.6.015.

Texte intégral
Résumé :
xBaO–(20−x)K2O–30TiO2–50P2O5 with (0≤x≤20 mol%) glasses were successfully elaborated by the melt quenching while their related glass-ceramics were developed by controlled crystallisation. Density and molar volume measurements, differential thermal analysis and Raman spectroscopy were carried out to examine the glassy structure, the results revealed that the addition of BaO increases the reticulation and reinforces the glass network by the creation of strengthened linkages. X-ray diffraction has identified the formation of MTi2(PO4)3 with M=(K, Ba0·5) in all the glass-ceramics (GC) and the prec
Styles APA, Harvard, Vancouver, ISO, etc.
16

Fomina, O. A., and А. Yu Stolboushkin. "Firing of Cellular Ceramics from Granulated Foam-Glass." Materials Science Forum 992 (May 2020): 265–70. http://dx.doi.org/10.4028/www.scientific.net/msf.992.265.

Texte intégral
Résumé :
It has been presented the study results of the firing process of cellular ceramics from granulated foam glass. The chemical, mineral and granulometric compositions of the raw materials are given. It has been shown the characteristic of ceramic-technological properties of raw materials. The samples were burned from the granulated mixture in the temperature range of 850-1000 ° C. It has been established the change dependence in the physicomechanical properties of cellular ceramic samples on the temperature and firing duration. The results of the study of the macro-and microstructure of cellular
Styles APA, Harvard, Vancouver, ISO, etc.
17

Brentel, A. S., K. Z. Kantorski, L. F. Valandro, S. B. Fúcio, R. M. Puppin-Rontani, and M. A. Bottino. "Confocal Laser Microscopic Analysis of Biofilm on Newer Feldspar Ceramic." Operative Dentistry 36, no. 1 (2011): 43–51. http://dx.doi.org/10.2341/10-093-lr.

Texte intégral
Résumé :
Clinical Relevance When the glazed surface of glass ceramics is submitted to chairside preparation, polishing with rubber points followed by felt disks impregnated with a fine-aluminum oxide particle appears be a good option to polish the surface of the glass ceramic, since this finishing-polishing method results in biofilm formation similar to the glazed ceramic surface.
Styles APA, Harvard, Vancouver, ISO, etc.
18

Wang, Hui, Bang Cheng Yang, Qi Feng Yu, Dayi Wu, and Xing Dong Zhang. "In Vitro Bioactivity of Composite of Nanophase Titania/Bioactive Glass-Ceramic in Simulated Body Fluid." Key Engineering Materials 288-289 (June 2005): 171–74. http://dx.doi.org/10.4028/www.scientific.net/kem.288-289.171.

Texte intégral
Résumé :
Titania ceramics is lack of bone-bonding ability even if it has excellent biocompatibility. Recently, it is even found that the nanophase titania ceramics could enhance the proliferation of osteoblasts. If the bone-bonding ability of this material is improved, it would be a potential bone replacement material. Bioactive glass-ceramic (BGC) is provided with the best bioactivity in biomaterials. In this study, the apatite formation ability and the mechanic properties of titania ceramic were investigated by the accession of BGC. Four samples: TiO2 ceramic, TiO2 +10%BGC, TiO2 +20%BGC and BGC were
Styles APA, Harvard, Vancouver, ISO, etc.
19

Almeida, Nuno A. F., and Maria Helena F. V. Fernandes. "Effect of Glass Ceramic Crystallinity on the Formation of Simulated Apatite Layers." Materials Science Forum 514-516 (May 2006): 1039–43. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.1039.

Texte intégral
Résumé :
In silicate glasses the kinetics of apatite layer formation is usually rapid but the adhesion to the base glass is poor. Glass ceramics promote a stronger bonding between layer and substrate but decrease the rate of the apatite layer formation. In this work a glass of composition (wt%) 54,89%C3P-24,81%SiO2-20,30%MgO has been studied. This glass was heat treated at four temperatures (840 °C, 870 °C, 890 °C and 910 °C) to obtain glass ceramics with different contents of the same crystalline phase. A calcium magnesium phosphate phase was formed in all glass ceramics in a volume percent increasing
Styles APA, Harvard, Vancouver, ISO, etc.
20

He, F., Y. Zheng, and J. Xie. "Preparation and properties of CaO-Al2O3-SiO2 glass-ceramics by sintered frits particle from mining wastes." Science of Sintering 46, no. 3 (2014): 353–63. http://dx.doi.org/10.2298/sos1403353h.

Texte intégral
Résumé :
The paper reports on some experimental results obtained from the production of glass-ceramics containing gold tailings powder (GTP). Frits particle sintered technology was used to prepare glass ceramic products. SiO2, CaO, ZnO, BaO and B2O3 were selected to adjust the composition of the glass. Based on the results of differential thermal analysis (DTA), the nucleation and crystallization temperature of parent glass samples with different schedule were identified, respectively. X-ray diffraction (XRD) analysis of the produced glass-ceramics materials revealed that the main crystalline phase was
Styles APA, Harvard, Vancouver, ISO, etc.
21

Savvova, O. V., G. K. Voronov, O. I. Fesenko, Yu O. Smirnova, and E. Bairamov. "Innovative directions of development of ceramic materials for dentistry." Кераміка: наука і життя, no. 1(50) (March 17, 2021): 19–25. http://dx.doi.org/10.26909/csl.1.2021.3.

Texte intégral
Résumé :
The need to improve the level of dental health of the population of Ukraine was identified. The prospects for the use of ceramic prostheses to provide quality medical care in dentistry have been established. An analytical review of various types of ceramic and glass-ceramic materials used as dental prostheses for tooth replacement: porcelain, alumina, zirconium oxide, glass-ceramics based on leucite and lithium disilicate and mica with the addition of fluorides. Peculiarities of the structure and operational properties of ceramic and glass-ceramic materials for dentistry have been identified,
Styles APA, Harvard, Vancouver, ISO, etc.
22

Liu, Changyou, Jian Zhou, and Jinshan Lu. "Sinterability, structural evolution and pinhole elimination of high strength self-glazed glass-ceramics sintered from granite sludge by instant glaze firing." Materials Technology Reports 3, no. 1 (2025): 2851. https://doi.org/10.59400/mtr2851.

Texte intégral
Résumé :
Granite sludge from the cutting and polishing of granite blocks should be utilized to prevent environmental pollution. This study focuses on the preparation of high-strength self-glazed glass-ceramics from granite sludge by combining dense sintering and instant glaze firing. Thermal analyses including thermogravimetry, differential scanning calorimetry and thermal expansion were used to evaluate the sinterability of the granite powder and to determine the dense sintering temperature. For the instant glaze firing of the sintered glass-ceramics, the structural evolution was analyzed by X-ray dif
Styles APA, Harvard, Vancouver, ISO, etc.
23

Nabian, Nima, Maedeh Delavar, Mahmood Rabiee, and Mohsen Jahanshahi. "Quenched/unquenched nano bioactive glass-ceramics: Synthesis and in vitro bioactivity evaluation in Ringer’s solution with BSA." Chemical Industry and Chemical Engineering Quarterly 19, no. 2 (2013): 231–39. http://dx.doi.org/10.2298/ciceq120323057n.

Texte intégral
Résumé :
The paper reports the first attempt at changing cooling treatment of synthesizing method in order to investigate its effect on the physical properties of sol-gel derived nano bioactive glass-ceramic in the system 58SiO2-33CaO-9P2O5 (wt.%). We hypothesized that the method of cooling may affect the properties of nano bioactive glass-ceramic. To test this hypothesis, two different method of cooling treatment was applied after calcinations in synthesizing method. Both quenched and unquenched nano bioactive glass-ceramics were soaked in Ringer?s solution with bovine serum albumin (BSA) for bioactiv
Styles APA, Harvard, Vancouver, ISO, etc.
24

Marzouk, Mohamed, and Batal El. "In vitro bioactivity of soda lime borate glasses with substituted SrO in sodium phosphate solution." Processing and Application of Ceramics 8, no. 3 (2014): 167–77. http://dx.doi.org/10.2298/pac1403167m.

Texte intégral
Résumé :
Borate glasses with the basic composition 0.6B2O3?0.2Na2O?0.2CaO and SrO progressively substituting CaO were prepared and characterized for their bone-bonding ability. The obtained glasses were thermally treated and converted to their glass-ceramic derivatives. In this study, FTIR spectral analyses were done for the prepared glasses and glass-ceramics before and after immersion in a sodium phosphate solution for extended times. The appearance of two IR bands within the spectral range 550-680 cm-1 after immersion confirms the formation of hydroxyapatite. X-ray diffraction studies and scanning e
Styles APA, Harvard, Vancouver, ISO, etc.
25

Khomenko, E. S., and E. V. Karasik. "Sol - gel method for producing of glass binding in the Li2O - Al2O3 - SiO2 system for ceramic materials." Scientific research on refractories and technical ceramics 120 (December 30, 2020): 186–95. http://dx.doi.org/10.35857/2663-3566.120.18.

Texte intégral
Résumé :
The results of glass binding obtaining in the Li2O — Al2O3 — SiO2 system for ceramic materials are presented in the article. The lithium aluminum silicate system was chosen taking into account the low temperature expansion coefficients of crystalline phases that form in it. This will allow controlling the thermal expansion of materials into which the glass binding will be introduced. A sol - gel method based on ethyl silicate and soluble salts of the corresponding oxides is proposed as a method for producing of glass binding. This method is more rational in comparison with the traditional meth
Styles APA, Harvard, Vancouver, ISO, etc.
26

Veronica, González Molina, Parra Parra Abigail, Vlasova Marina, et al. "Synthesis and Properties of Carbonized Silicate Ceramics." Journal of Progressive Research in Chemistry 6, no. 1 (2017): 255–65. https://doi.org/10.5281/zenodo.3969721.

Texte intégral
Résumé :
Temperature treatment of compositions based on red clay, grinded wastes of basalt (tezontle) and cullet makes it possible to reduce the sintering temperature and sintering time of ceramic products of different applications within the framework of a traditional technology, i.e., realize an energy-saving technology. The principle of formation of low-temperature eutectics is the basis for the energy-saving technology. The use of biowaste of sewage water treatment plants (WAS) enables us to perform plastic formation of products without addition of free water, thereby realizing a water-saving techn
Styles APA, Harvard, Vancouver, ISO, etc.
27

Zaichuk, A. V., Y. R. Kalishenko, A. A. Amelina, et al. "Features of formation of the celsian phase during firing of heat-resistant ceramics in the system BaO–Al2O3–SiO2." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 3 (June 2022): 26–32. http://dx.doi.org/10.32434/0321-4095-2022-142-3-26-32.

Texte intégral
Résumé :
In the synthesis of heat-resistant ceramics in the system BaO–Al2O3–SiO2 (BAS), it is important to find ways of intensifying the process of transition of hexagonal celsian to monoclinic celsian without an increase in sintering temperature. Monoclinic form of celsian is characterized by higher thermal, electro-insulating, and mechanical properties. This paper deals with the features of formation of the phase composition of celsian ceramics when using BAS glass of eutectic composition and glass in the system Li2O–Al2O3–B2O3–SiO2 (LABS) of spodumene composition as modifying components. It is show
Styles APA, Harvard, Vancouver, ISO, etc.
28

Li, Sai, Wei Lu, Qihua Yang, et al. "Surface Plasmon Resonance Enhanced Spontaneous Upconversion and Stimulated Emissions in Glass Ceramics Containing Ba2LaF7 Nanocrystals." Advances in Condensed Matter Physics 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/5304791.

Texte intégral
Résumé :
Glass ceramics containing Yb3+, Er3+ codoped Ba2LaF7 nanocrystals were fabricated via melt quenching method and the subsequent heating treatment. The formation of Ba2LaF7 nanocrystals in the glass ceramics was confirmed by X-ray diffraction (XRD) and transmission electron microscope (TEM). The spontaneous upconversion (UC) emission and the stimulated counterpart as a random lasing action of Er3+, which were related to the characteristic transitions of Er3+ ions, were achieved in the Yb3+, Er3+-doped Ba2LaF7 nanocrystals embedded glass ceramic hybrid. Furthermore, the absorption spectra verifie
Styles APA, Harvard, Vancouver, ISO, etc.
29

Choi, Seong Ho, D. H. Baik, C. S. Kim, et al. "Bone Formation of Intrabony Defects in Beagle Dogs Using Calcium Phosphate Glass and Glass-Ceramics." Key Engineering Materials 284-286 (April 2005): 957–60. http://dx.doi.org/10.4028/www.scientific.net/kem.284-286.957.

Texte intégral
Résumé :
The purpose of this study was to compare the bone regenerative effect of calcium phosphate glass and glass-ceramics in the system of CaO-CaF2-P2O5-MgO-ZnO, which is already reported that promoted the bone-like tissue formation in vitro and formed new bone in Sprague-Dawley rats. We prepared calcium phosphate glass and glass-ceramics with Ca/P ratio of 0.6 using the system CaO-CaF2-P2O5-MgO-ZnO and subsequently milled to 400 µm. 4×4 mm 1-wall intrabony defects of six beagle dogs were surgically created and used in this study. 8 weeks after transplantation of the prepared calcium phosphate glass
Styles APA, Harvard, Vancouver, ISO, etc.
30

Lutišanová, Gabriela, Martin Palou, Milan Mikula, and Jana Kozánková. "Characterisation of the surface structure and bioactivity of glass and glass ceramics using surface topography." Open Chemistry 10, no. 6 (2012): 1890–98. http://dx.doi.org/10.2478/s11532-012-0111-5.

Texte intégral
Résumé :
AbstractThe present paper reports the results of the relationship between the surface topography, microstructure and the in vitro bioactivity of samples with and without fluorapatite content in simulated body fluid. Glasses and glass ceramics belonging to the Li2O-SiO2-CaO-P2O5-CaF2 system were prepared by using conventional melting technique following by heat treatment to obtain glass ceramics. This current study demonstrates the benefits of combining two microscopic methods for better investigation of the surface structure. The formation of apatite layer on the surface and the increase in su
Styles APA, Harvard, Vancouver, ISO, etc.
31

Savvova, О. V., O. I. Fesenko, H. K. Voronov, et al. "Study of mineralization of lithium calcium phosphosilicate glass ceramics in vivo during bone tissue regeneration." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 4 (July 2023): 83–93. http://dx.doi.org/10.32434/0321-4095-2023-149-4-83-93.

Texte intégral
Résumé :
Prospective directions for the creation of biologically active substitutes for bone tissue were analyzed. The effectiveness of the use of calcium phosphosilicate materials modified with CuO, ZnO, Ag2O, Fe2O3, TiO2, SrO and Nb2O5 to ensure high biocompatibility and antibacterial properties of bone endoprostheses has been established. The prospective use of lithium calcium phosphate silicate glass ceramics for obtaining strengthened, biologically active bone implants was substantiated. The main criteria for the development of biocompatible glass-ceramic materials regarding their composition, str
Styles APA, Harvard, Vancouver, ISO, etc.
32

Mazhit, Danara, Zhanar Kaliyeva, and Daniyar Bazarbayev. "Effect of glass waste on ceramics and concrete production." Technobius 5, no. 1 (2025): 0075. https://doi.org/10.54355/tbus/5.1.2025.0075.

Texte intégral
Résumé :
The article is devoted to the study of using glass waste for ceramics and concretes production. The results of the spectral analysis of glass composition are presented, and phase changes and their impact on the microstructure and strength properties of ceramics and concrete are studied. Scanning electron microscopy and energy dispersive X-ray spectroscopy of the final material are discussed. As a result, it was revealed that after 28 days, concrete with added glass powder delayed the strength rise, but by day 112, the strength had considerably grown to 76.36 MPa. This results from pozzolanic r
Styles APA, Harvard, Vancouver, ISO, etc.
33

Shin, Hyun-Ho, Yolande Berta, and Robert F. Speyer. "Effect of processing temperature on interfacial layer formation in SiC fiber-reinforced glass-ceramic composites." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 1 (1992): 62–63. http://dx.doi.org/10.1017/s0424820100120710.

Texte intégral
Résumé :
The high fracture toughness and non-catastrophic fracture behavior of fiber-reinforced ceramic matrix composites are due to the weak interfacial shear strength between fiber and matrix, permitting fiber-matrix sliding during failure. In SiC fiber-reinforced glass or glass-ceramic composites, such low interfacial shear strength is obtained by the presence of a carbon-rich interfacial layer. This provides a path for crack propagation, fiber pull-out, and fiber delamination during fracture. Hence, these composites have demonstrated very high fracture toughness (critical stress intensity factor of
Styles APA, Harvard, Vancouver, ISO, etc.
34

Mehdikhani, Behzad, and Gholam Hossein Borhani. "Crystallization Behavior and Microstructure of Bio Glass-Ceramic System." International Letters of Chemistry, Physics and Astronomy 19 (October 2013): 58–68. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.19.58.

Texte intégral
Résumé :
The effects of Al2O3 on the crystallization behavior of glass compositions in the Na2O-CaO-SiO2 system were investigated by differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Effect of Al2O3 content on the mechanical, density, phase formation and microstructures of Na2O-CaO–P2O5–Al2O3-SiO2 glass ceramics were studied. Thermal parameters of each glass were studied by DTA. The density of the glass ceramic samples was measured by Archimedes’ method. It was found that the glass–ceramic containing 2.0 molar percent Al2O3 had desirable sintering beha
Styles APA, Harvard, Vancouver, ISO, etc.
35

Mehdikhani, Behzad, and Gholam Hossein Borhani. "Crystallization Behavior and Microstructure of Bio Glass-Ceramic System." International Letters of Chemistry, Physics and Astronomy 19 (October 2, 2013): 58–68. http://dx.doi.org/10.56431/p-7o0g70.

Texte intégral
Résumé :
The effects of Al2O3 on the crystallization behavior of glass compositions in the Na2O-CaO-SiO2 system were investigated by differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Effect of Al2O3 content on the mechanical, density, phase formation and microstructures of Na2O-CaO–P2O5–Al2O3-SiO2 glass ceramics were studied. Thermal parameters of each glass were studied by DTA. The density of the glass ceramic samples was measured by Archimedes’ method. It was found that the glass–ceramic containing 2.0 molar percent Al2O3 had desirable sintering beha
Styles APA, Harvard, Vancouver, ISO, etc.
36

Workie, Andualem Belachew, and Shao-Ju Shih. "A study of bioactive glass–ceramic's mechanical properties, apatite formation, and medical applications." RSC Advances 12, no. 36 (2022): 23143–52. http://dx.doi.org/10.1039/d2ra03235j.

Texte intégral
Résumé :
Bioactive glass–ceramics are made by several steps, such as creating a microstructure from dispersed crystals within the residual glass, which provides high bending strength, and apatite crystallizes on surfaces of glass–ceramics with calcium ions.
Styles APA, Harvard, Vancouver, ISO, etc.
37

Mymrin, Vsévolod A., Rodrigo E. Catai, Elena V. Zelinskaya, and Natalia A. Tolmacheva. "New Construction Materials Based on Automobile Construction Sludge." Applied Mechanics and Materials 346 (August 2013): 15–21. http://dx.doi.org/10.4028/www.scientific.net/amm.346.15.

Texte intégral
Résumé :
This paper is devoted to the development of valuable new construction materials based on various ecologically burdensome galvanic wastes, namely industrial sludge from the RENAULT plant and metal cleaning glass waste. The only natural component used is local clay. Both of the wastes need significant financial investment and efforts for neutralization and subsequent disposal while they can be recycled into glass-ceramics or red ceramics (tiles, bricks, blocks, etc.). Mechanical properties of the ceramics of various compositions are as follows: flexion resistances are 4.8-9.2, 7.6-11.5 and 11.1-
Styles APA, Harvard, Vancouver, ISO, etc.
38

Mariappan, Chinnasamy Ramaraj, and Narender Ranga. "Silver Doped Nano-Sized Bioglass Ceramics: Synthesis, Characterization and Biocompatibility Studies." Materials Science Forum 860 (July 2016): 25–28. http://dx.doi.org/10.4028/www.scientific.net/msf.860.25.

Texte intégral
Résumé :
We report on the structural and biocompatibility properties of nanosized calcium phosphosilicate bioglass ceramics doped with 0, 2, 4 and 6 mol% Ag2O. Silver doped bioceramics were synthesized by sol-gel method. The prepared samples were characterized by means of powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, UV-visible and high resolution transmission electron microscopy. The XRD reveals the glass-ceramic nature of the samples. The FT-IR spectra show the possible stretching and bending vibrations of silicate and phosphate groups. Absorptions in UV-visible spec
Styles APA, Harvard, Vancouver, ISO, etc.
39

Malaiškienė, Jurgita, Romualdas Mačiulaitis, and Raminta Mikalauskaitė. "POSSIBILITIES TO RECYCLE AUTO GLASS WASTE IN BUILDING CERAMICS." JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT 22, no. 1 (2014): 21–29. http://dx.doi.org/10.3846/16486897.2013.867863.

Texte intégral
Résumé :
Substantial amounts of glass waste end up in landfills because unlike ordinary glass, auto glass is unsuitable for recycling in the glass industry due to organic additives. However, it was determined that the additives make auto glass waste appropriate for the production of building ceramics, which results in improved physical-mechanical and structural properties. The optimum quantity of the additive contained in auto glass waste amounts to 15% of the formation mixture, and the most appropriate burning temperature is 1080 °C. The density of such ceramic chip is 2059 kg/m3 , the water absorptio
Styles APA, Harvard, Vancouver, ISO, etc.
40

Pei, Zhen, Haixiao Huang, Xingzhong Guo, Jinming Zhang, and Mingxing Chen. "Preparation and Properties of MgO-Al2O3-SiO2 Glass–Ceramics with Controllable Crystalline Phases." Crystals 13, no. 8 (2023): 1261. http://dx.doi.org/10.3390/cryst13081261.

Texte intégral
Résumé :
MgO–Al2O3–SiO2 (MAS) glass–ceramics with controllable crystalline phases were successfully prepared using the melting method followed by heat treatment. The effects of the main components of glass on the crystallisation kinetics, nucleation, crystallisation and properties of glass–ceramics were investigated in detail. As the Al2O3 and MgO contents increase and SiO2 content decreases, the crystallisation peak temperature and activation energy of MAS glass decrease, while the crystal growth tends to follow a homogeneous nucleation crystallisation. The MAS glass nucleation temperature and time in
Styles APA, Harvard, Vancouver, ISO, etc.
41

Kraipok, Arnon, Pratthana Intawin, Manlika Kamnoy, et al. "Effect of PEG-based binder concentration on the mechanical properties of lithium disilicate glass-ceramics prepared by low-pressure injection moulding." Processing and Application of Ceramics 15, no. 3 (2021): 238–45. http://dx.doi.org/10.2298/pac2103238k.

Texte intégral
Résumé :
Lithium disilicate (LD) glass-ceramics are extensively employed in restorative dentistry because their superior aesthetic properties and hardness are similar to natural teeth. The aim of this work is to investigate the mechanical properties and chemical solubility of lithium disilicate glass-ceramics prepared by the low-pressure injection moulding using the PEG-based binder. The glass-to-binder ratio was varied as 60:40, 55:45, 50:50 and 45:55 vol.%. The sintering conditions of 800?C with 2 h dwell time were selected according to thermal analysis. Phase formation, microstructure and mechanical
Styles APA, Harvard, Vancouver, ISO, etc.
42

Sharma, Rashi, Rebecca Welch, Myungkoo Kang, et al. "Impact of Morphology and Microstructure on the Mechanical Properties of Ge-As-Pb-Se Glass Ceramics." Applied Sciences 10, no. 8 (2020): 2836. http://dx.doi.org/10.3390/app10082836.

Texte intégral
Résumé :
The impact of base glass morphology and post heat-treatment protocol on the mechanical properties (Vickers hardness and Young’s modulus) of a multi-component glass-ceramic was examined. Two parent chalcogenide glasses with identical composition but varying morphology (homogeneous and phase separated) were evaluated for their mechanical properties following identical thermal processing to induce crystallization. The nucleation and growth rates of the starting materials were compared for the two glasses, and the resulting crystal phases and phase fractions formed through heat treatment were quan
Styles APA, Harvard, Vancouver, ISO, etc.
43

Kang, Byeongguk, and Seunggu Kang. "Crystallization Behavior and Optical Properties of Glass-Ceramics Containing Nano-Diopside Crystals." Science of Advanced Materials 12, no. 4 (2020): 510–15. http://dx.doi.org/10.1166/sam.2020.3657.

Texte intégral
Résumé :
Diopside is a ceramic material with excellent properties including a low dielectric constant, high thermal conductivity, low sintering temperature below 1000 °C, and high mechanical strength. It has been applied to wireless and optical communications, substrates for touch panels, lenses for UV-LED, building materials, and so on. In this study, glass-ceramics containing nano-sized diopside crystals were fabricated, and their transmittance at visible light and photoluminescence were evaluated. In particular, TiO2 was added as a nucleating agent to suppress the surface crystallization phenomenon
Styles APA, Harvard, Vancouver, ISO, etc.
44

Dymshits, Olga, Anastasia Bachina, Irina Alekseeva, et al. "Phase Transformations upon Formation of Transparent Lithium Alumosilicate Glass-Ceramics Nucleated by Yttrium Niobates." Ceramics 6, no. 3 (2023): 1490–507. http://dx.doi.org/10.3390/ceramics6030092.

Texte intégral
Résumé :
Phase transformations in the lithium aluminosilicate glass nucleated by a mixture of yttrium and niobium oxides and doped with cobalt ions were studied for the development of multifunctional transparent glass-ceramics. Initial glass and glass-ceramics obtained by isothermal heat-treatments at 700–900 °C contain YNbO4 nanocrystals with the distorted tetragonal structure. In samples heated at 1000 °C and above, the monoclinic features are observed. High-temperature X-ray diffraction technique clarifies the mechanism of the monoclinic yttrium orthoniobate formation, which occurs not upon high-tem
Styles APA, Harvard, Vancouver, ISO, etc.
45

Ganshina, Elena Alexandrovna, Vladimir Valentinovich Garshin, Ilya Mikhailovich Pripechenkov, Sergey Alexandrovich Ivkov, Alexander Victorovich Sitnikov, and Evelina Pavlovna Domashevskaya. "Effect of Phase Transformations of a Metal Component on the Magneto-Optical Properties of Thin-Films Nanocomposites (CoFeZr)x (MgF2)100−x." Nanomaterials 11, no. 7 (2021): 1666. http://dx.doi.org/10.3390/nano11071666.

Texte intégral
Résumé :
The results of complex studies of structural-phase transformations and magneto-optical properties of nanocomposites (CoFeZr)x (MgF2)100−x depending on the metal alloy content in the dielectric matrix are presented. Nanocomposites were deposited by ion-beam sputtering onto glass and glass-ceramic substrate. By studying the spectral and field dependences of the transversal Kerr effect (TKE), it was found that the transition of nanocomposites from superparamagnetic to the ferromagnetic state occurs in the region of xfm~30 at%, that corresponds to the onset the formation of ferromagnetic nanocryst
Styles APA, Harvard, Vancouver, ISO, etc.
46

Delaqua, Geovana, Juan Magalhães, Markssuel Marvila, et al. "Application of Glass Waste on Red Ceramic to Improve Sintering." Sustainability 14, no. 16 (2022): 10454. http://dx.doi.org/10.3390/su141610454.

Texte intégral
Résumé :
Given the current huge generation of solid waste worldwide, alternative and innovative methodologies for incorporating these materials should be encouraged elsewhere. In this context, the objective of this research is to evaluate the use of glass waste as a substitute for sand as raw material in ceramics. Formulations containing from 0% to 20% of glass waste were produced, thus replacing natural sand. Extruded and calcined specimens were produced at temperatures of 800, 900 and 1000 °C. The characterization results demonstrated the compatibility and their potential for the glass waste for impr
Styles APA, Harvard, Vancouver, ISO, etc.
47

Li, Bin, Yu Hong Wei, and Chen Ma. "The Effects of TiO2 Addition on the Crystallization of Molybdenum Slag Glass." Advanced Materials Research 512-515 (May 2012): 2267–70. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.2267.

Texte intégral
Résumé :
The glass ceramics were prepared by using molybdenum slag (90wt% added) as the raw materials, in which TiO2 functioned as the nucleation agent. The effect of TiO2 additions on the crystallization was studied. The crystallization process was investigated by DTA, XRD and SEM. It was showed that TiO2 can effectively promote the glass formation when the content of TiO2 is 5wt %. The activation energy for crystal growth E=280.46kJ/mol was evaluated by DTA and kinetic method. The glass ceramic has good properties with main crystal phase of wollastonite.
Styles APA, Harvard, Vancouver, ISO, etc.
48

Göller, Gültekin, Ipek Akin, A. Kahraman, Erdem Demirkesen, and M. Urgen. "In Vitro Bioactivity Characterization of Machinable Glass Ceramics Containing 85wt% Na-mica and 15wt% Fluorapatite." Key Engineering Materials 309-311 (May 2006): 325–28. http://dx.doi.org/10.4028/www.scientific.net/kem.309-311.325.

Texte intégral
Résumé :
In this study; in-vitro bioactivity characterization of machinable glass-ceramics having 85 wt% sodium mica (NaMg3AlSi3O10F2) and 15 wt% fluoroapatite has been carried out. Two different heat treatment procedures are applied to the machinable glass-ceramics. The first one is nucleation at 610°C for 2 hours and crystallization at 1000°C for 3 hours and the second is nucleation at 610°C for 2 hours and crystallization at 1000°C for 4 hours. It is observed that increasing the crystallization time to 4 hours resulted in the increasing the formation of hydroxyapatite layer on surface. According to
Styles APA, Harvard, Vancouver, ISO, etc.
49

Bukina, Vasilisa, Olga Dymshits, Irina Alekseeva, et al. "Iron-Doped Magnesium Aluminosilicate Transparent Glass-Ceramics. Mg-Petalite or Spinel Nanocrystals? Competing Mechanisms." Glass Europe 3 (May 8, 2025): 45–75. https://doi.org/10.52825/glass-europe.v3i.2519.

Texte intégral
Résumé :
Transparent glass-ceramics based on Fe2+:Mg-petalite and/or Fe2+:MgAl2O4 nanocrystals were obtained from the initial glass by single and two-stage heat-treatments at temperatures from 800 to 1000 °C. ZrTiO4 and spinel crystallized during the DSC scan up to 1000 °C. Spinel nanocrystals 9-12 nm in size also appeared during single and two-stage heat-treatments at temperatures of 850 - 1000 °C. Mg-petalite crystallites ~30 nm in size evolved in the narrow temperature range from 850 to 900 °C during single-stage holding periods. A maximum fraction of Mg-petalite crystallized at 850 °C. Once formed,
Styles APA, Harvard, Vancouver, ISO, etc.
50

Göller, Gültekin, Ipek Akin, Niyazi Eruslu, and E. S. Kayali. "In Vitro Bioactivity Characterization of K-Mica-Fluorapatite Based Glass Ceramics Containing Varying Amount of TiO2 Addition." Key Engineering Materials 309-311 (May 2006): 321–24. http://dx.doi.org/10.4028/www.scientific.net/kem.309-311.321.

Texte intégral
Résumé :
The purpose of this study is to investigate the crystallization behavior and in-vitro bioactivity character of glass ceramics having 3:7 weight ratio of flourapatite (Ca5(PO4)3F) to potassium mica (K2Mg3AlSi3O10F2) as a function of titania addition, and compare the morphology of hydroxycarbonateapatite (HCA) layer formation depending on titania addition on ceramic composition. It is observed from microstructural investigations that there is no morphology change occurred on precipitated HCA layer depending on nucleating agent in glass-ceramics. TF-XRD analysis indicates that after precipitation
Styles APA, Harvard, Vancouver, ISO, etc.
Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!