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Articles de revues sur le sujet « Lithia silica based ceramics »

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Auteur : Grafiati
Publié le 10 mars 2023

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1

Le Bars, Nathalie, et L. C. Klein. « Lithia distribution in infiltrated silica gels ». Journal of Non-Crystalline Solids 122, no 3 (août 1990) : 291–97. http://dx.doi.org/10.1016/0022-3093(90)90994-w.

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Daguano, Juliana K. M. B., Mariana T. B. Milesi, Andrea C. D. Rodas, Aline F. Weber, Jorge E. S. Sarkis, Marcos A. Hortellani et Edgar D. Zanotto. « In vitro biocompatibility of new bioactive lithia-silica glass-ceramics ». Materials Science and Engineering : C 94 (janvier 2019) : 117–25. http://dx.doi.org/10.1016/j.msec.2018.09.006.

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3

Tucker, Dennis S. « Dynamic Fatigue of a Lithia-Alumina-Silica Glass-Ceramic ». Journal of the American Ceramic Society 73, no 8 (août 1990) : 2528–30. http://dx.doi.org/10.1111/j.1151-2916.1990.tb07627.x.

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4

DELLABONA, A. « Fracture behavior of lithia disilicate- and leucite-based ceramics ». Dental Materials 20, no 10 (décembre 2004) : 956–62. http://dx.doi.org/10.1016/j.dental.2004.02.004.

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5

Anusavice, Kenneth J., et Nai-Zheng Zhang. « Chemical durability of Dicor and lithia-based glass-ceramics ». Dental Materials 13, no 1 (janvier 1997) : 13–19. http://dx.doi.org/10.1016/s0109-5641(97)80003-6.

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6

RAY, CHANDRA S., WENHAI HUANG et DELBERT E. DAY. « Crystallization Kinetics of Lithia-Silica Glasses : Effect of Composition and Nucleating Agent ». Journal of the American Ceramic Society 70, no 8 (août 1987) : 599–603. http://dx.doi.org/10.1111/j.1151-2916.1987.tb05714.x.

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7

Homeny, Joseph, Janet R. VanValzah et Mark A. Kelly. « Interfacial Characterization of Silicon Carbide Fiber/Lithia-Alumina-Silica Glass Matrix Composites ». Journal of the American Ceramic Society 73, no 7 (juillet 1990) : 2054–59. http://dx.doi.org/10.1111/j.1151-2916.1990.tb05266.x.

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8

Soares, R. S., R. C. C. Monteiro, M. M. R. A. Lima et R. J. C. Silva. « Crystallization of lithium disilicate-based multicomponent glasses – effect of silica/lithia ratio ». Ceramics International 41, no 1 (janvier 2015) : 317–24. http://dx.doi.org/10.1016/j.ceramint.2014.08.074.

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Fabian-Fonzar, R., C. Goracci, M. Carrabba, M. Ferrari et A. Vichi. « Acid concentration and etching time efficacy on lithia-based glass ceramics ». Dental Materials 32 (2016) : e91-e92. http://dx.doi.org/10.1016/j.dental.2016.08.191.

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10

Coon, Dennis N. « Effect of Silicon Carbide Additions on the Crystallization Behavior of a Magnesia-Lithia-Alumina-Silica Glass ». Journal of the American Ceramic Society 72, no 7 (juillet 1989) : 1270–73. http://dx.doi.org/10.1111/j.1151-2916.1989.tb09725.x.

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Ray, Chandra S., Wenhai Huang et Delbert E. Day. « Crystallization Kinetics of a Lithia-Silica Glass : Effect of Sample Characteristics and Thermal Analysis Measurement Techniques ». Journal of the American Ceramic Society 74, no 1 (janvier 1991) : 60–66. http://dx.doi.org/10.1111/j.1151-2916.1991.tb07297.x.

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Anusavice, Kenneth J., Nai-Zeng Zhang et Jacquelyn E. Moorhead. « Influence of colorants on crystallization and mechanical properties of lithia-based glass-ceramics ». Dental Materials 10, no 2 (mars 1994) : 141–46. http://dx.doi.org/10.1016/0109-5641(94)90055-8.

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13

Clelland, Nancy L., Adriana Ramirez, Noriko Katsube et Robert R. Seghi. « Influence of bond quality on failure load of leucite- and lithia disilicate–based ceramics ». Journal of Prosthetic Dentistry 97, no 1 (janvier 2007) : 18–24. http://dx.doi.org/10.1016/j.prosdent.2006.11.009.

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14

Anusavice, Kenneth J., Nai-Zheng Zhang et Jacquelyn E. Moorhead. « Influence of P2O5, AgNO3, and FeCl3 on color and translucency of lithia-based glass-ceramics ». Dental Materials 10, no 4 (juillet 1994) : 230–35. http://dx.doi.org/10.1016/0109-5641(94)90066-3.

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15

Hsu, J. Y., Y. Berta et R. F. Speyer. « Effects of Additives on the Interfacial Microstructure of SiC Fiber/Li2O-Al2O3-6SiO2 Glass-Ceramic Composites ». Proceedings, annual meeting, Electron Microscopy Society of America 49 (août 1991) : 924–25. http://dx.doi.org/10.1017/s0424820100088932.

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SiC fiber reinforced lithia-alumina-silica glass-ceramic composites have exhibited superior mechanical properties at room and elevated temperatures. The flexural strength of these composites is 3 to 4 times larger than that of monolithic glass-ceramics. The high flexural strength of these composites is due to the transfer of the applied load from the matrix to the stronger and stiffer SiC fiber reinforcement. These composites also have demonstrated very high fracture toughness, KIC (critical stress intersity factor) values of ∼ 17 MPa m1/2, which is attributed to an amorphous carbon-rich interfacial layer between the fiber and matrix. Nb2O2 has been added to the matrix composition in order to develop a NbC layer outside the amorphous C-rich layer after thermal processing, thereby buffering the fiber/matrix reactivity (avoid carbon forming CO gas which would deteriorate the matrix).
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Gomez-Laserna, Olivia, Anna Irto, Pablo Irizar, Gabriele Lando, Clemente Bretti, Irantzu Martinez-Arkarazo, Lorenzo Campagna et Paola Cardiano. « Non-Invasive Approach to Investigate the Mineralogy and Production Technology of the Mosaic Tesserae from the Roman Domus of Villa San Pancrazio (Taormina, Italy) ». Crystals 11, no 11 (21 novembre 2021) : 1423. http://dx.doi.org/10.3390/cryst11111423.

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The archaeological excavations at Villa San Pancrazio (Taormina, Italy) are bringing to light a vast Roman-Imperial residential quarter featuring luxurious dwellings decorated with wall paintings and mosaic floors, pointing it out as one of the most significant archaeological sites of the city. The polychrome and black and white mosaics recovered date back to the middle Imperial period, during the 2nd century AD. This work deals with the first archaeometric investigations of the materials employed for the tesserae production with the aim of elucidating the mineralogical composition and obtaining analytical evidence that can contribute to extracting information related to their production technology. For that purpose, a non-invasive methodology, based on micro energy dispersive X-ray fluorescence (μ-EDXRF) spectrometry and Raman spectroscopy, was used to characterize a wide selection of stone, ceramic and glass tesserae. Chemometric tools were exploited to manage the large set of elemental data collected on black and white lithic samples, providing essential clues for the subsequent investigations. The results evidenced the employment of natural lithotypes (calcareous sedimentary, dolomitic and volcanic) local and imported, and also artificial materials, such as ceramic made firing magnesium-rich clays, soda-lime-silica glasses made with different opacifying and coloring agents (such as calcium antimoniate, cobalt and copper).
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Morsi, Reham M. M., et Mohammad A. F. Basha. « Effect of heat-treatment on the electrical and dielectric properties of a TiO2-containing lithia–calcia–silica glass and glass ceramics ». Materials Chemistry and Physics 129, no 3 (octobre 2011) : 1233–39. http://dx.doi.org/10.1016/j.matchemphys.2011.06.017.

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Xia, Long, Guang-wu Wen, Liang Song et Xin-yu Wang. « The effect of aluminum sources on synthesis of low expansion glass–ceramics in lithia–alumina–silica system by sol–gel route ». Journal of Non-Crystalline Solids 355, no 48-49 (novembre 2009) : 2349–54. http://dx.doi.org/10.1016/j.jnoncrysol.2009.08.020.

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Thompson, Jeffrey Y., Kenneth J. Anusavice, Balamurali Balasubramaniam et John J. Mecholsky. « Effect of Micmcracking on the Fracture Toughness and Fracture Surface Fractal Dimension of Lithia-Based Glass-Ceramics ». Journal of the American Ceramic Society 78, no 11 (novembre 1995) : 3045–49. http://dx.doi.org/10.1111/j.1151-2916.1995.tb09081.x.

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Mandal, S., S. Chakrabarti, S. K. Das et S. Ghatak. « Synthesis of low expansion ceramics in lithia–alumina–silica system with zirconia additive using the powder precursor in the form of hydroxyhydrogel ». Ceramics International 33, no 2 (mars 2007) : 123–32. http://dx.doi.org/10.1016/j.ceramint.2005.08.015.

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21

Pishch, I. V., G. N. Maslennikova, K. B. Podbolotov, Yu A. Karizna et I. V. Belyakovich. « Silica based pigments ». Glass and Ceramics 68, no 3-4 (juillet 2011) : 71–75. http://dx.doi.org/10.1007/s10717-011-9324-x.

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22

Egelja, Adela, Aleksandar Devecerski, Jelena Gulicovski, Milena Rosic, Biljana Babic et Branko Matovic. « Synthesis of biomorphic Si-based ceramics ». Processing and Application of Ceramics 3, no 4 (2009) : 197–201. http://dx.doi.org/10.2298/pac0904197e.

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Tilia wood was transformed by pyrolysis into carbon preform. This porous carbon preform was infiltrated with TEOS (Si(OC2H5)4), as a source of silica. In situ reaction between the silica and the carbon template occurred in the cellular wall at a hight temperature. Depending on the applied atmosphere, non-oxide (SiC) or oxide (SiO2) ceramics were obtained. Scanning electron microscopy (SEM), X-ray diffraction (XRD), infrared (IR) spectroscopy, mercury porosimetry and BET measurements were employed to characterize the phases and crystal structure of biomorphic ceramics. The experimental results showed that the biomorphic cellular morphology of the wood maintained in both the SiC and SiO2 ceramics, wich consisted of ?-SiC with trace of ?-SiC and SiO2, respectively. .
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Blatz, Markus B., Courtney Richter, Gerard J. Chiche et Edward J. Swift. « RESIN BOND TO DENTAL CERAMICS, PART I : REVIEW AND SILICA-BASED CERAMICS ». Journal of Esthetic and Restorative Dentistry 16, no 4 (juillet 2004) : 261. http://dx.doi.org/10.1111/j.1708-8240.2004.tb00048.x.

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Manocha, L. M., D. Y. Vashistha et S. M. Manocha. « Studies on Synthesis of Silica and Silica Based Ceramics as Matrices for Advanced Composites ». Materials Science Forum 223-224 (juillet 1996) : 127–32. http://dx.doi.org/10.4028/www.scientific.net/msf.223-224.127.

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Hong, Lan Young, et Dong Pyo Kim. « Highly Ordered Macroporous BN-Based Ceramics Prepared from Templated Preceramic Polymers ». Key Engineering Materials 287 (juin 2005) : 323–28. http://dx.doi.org/10.4028/www.scientific.net/kem.287.323.

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Macroporous SiCBN and BCN ceramic were prepared by infiltrating these preceramic polymers into the colloidal silica crystalline array, followed by pyrolysis at 1400ı and subsequently etching off the silica spheres. It is generally observed by SEM and TEM that a highly ordered and interconnected 'honeycomb' pore structure was obtained by replicating the three dimensional close packed silica spheres which was fabricated by natural sedimentation. And BET surface areas in range 413 ~ 315 m2/g and pore sizes of 113 ~ 395 nm in the porous materials were tailored by controlling the sacrificial silica sphere sizes in range 145~500 nm even under volume shrinkage involved during pyrolytic step. The porous SiCBN ceramics and BCN ceramic showed a slight weight loss of 0.2~0.8% and 4%, respectively, indicating excellent resistance to oxidation.
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Gai, Pratibha L., M. A. Saltzberg, L. G. Hanna et S. C. Winchester. « Structures of chemically stabilized ceramics ». Proceedings, annual meeting, Electron Microscopy Society of America 51 (1 août 1993) : 924–25. http://dx.doi.org/10.1017/s0424820100150459.

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Silica based ceramics are some of the most fundamental in crystal chemistry. The cristobalite form of silica has two modifications, α (low temperature, tetragonal form) and β (high temperature, cubic form). This paper describes our structural studies of unusual chemically stabilized cristobalite (CSC) material, a room temperature silica-based ceramic containing small amounts of dopants, prepared by a wet chemical route. It displays many of the structural charatcteristics of the high temperature β-cristobalite (∼270°C), but does not undergo phase inversion to α-cristobalite upon cooling. The Structure of α-cristobalite is well established, but that of β is not yet fully understood.Compositions with varying Ca/Al ratio and substitutions in cristobalite were prepared in the series, CaO:Al2O3:SiO2 : 3-x: x : 40, with x= 0-3. For CSC, a clear sol was prepared from Du Pont colloidal silica, Ludox AS-40®, aluminium nitrate nonahydrate, and calcium nitrate hexahydrate in proportions to form a final composition 1:2:40 composition.
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KALEMTAŞ, Ayşe. « Production of Porous Silica Based Ceramics via Strach Consolidation Method ». Afyon Kocatepe University Journal of Sciences and Engineering 16, no 3 (1 septembre 2016) : 734–46. http://dx.doi.org/10.5578/fmbd.41393.

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Wang, Yingying, Zaiyi Wang, Shihao Liu, Zhongbao Qu, Zhuoqun Han, Futian Liu et Ling Li. « Additive manufacturing of silica ceramics from aqueous acrylamide based suspension ». Ceramics International 45, no 17 (décembre 2019) : 21328–32. http://dx.doi.org/10.1016/j.ceramint.2019.07.118.

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Zheng, Wen, Jia-Min Wu, Shuang Chen, Chang-Shun Wang, Chun-Lei Liu, Shuai-Bin Hua, Kang-Bo Yu, Jie Zhang, Jing-Xian Zhang et Yu-Sheng Shi. « Influence of Al2O3 content on mechanical properties of silica-based ceramic cores prepared by stereolithography ». Journal of Advanced Ceramics 10, no 6 (28 septembre 2021) : 1381–88. http://dx.doi.org/10.1007/s40145-021-0513-y.

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AbstractSilica ceramic cores have played an important part in the manufacture of hollow blades due to their excellent chemical stability and moderate high-temperature mechanical properties. In this study, silica-based ceramics were prepared with Al2O3 addition by stereolithography, and the influence of Al2O3 content on mechanical properties of the silica-based ceramics was investigated. The Al2O3 in silica-based ceramics can improve the mechanical properties by playing a role as a seed for the crystallization of fused silica into cristobalite. As a result, with the increase of Al2O3 content, the linear shrinkage of the silica-based ceramics first decreased and then increased, while the room-temperature flexural strength and the high-temperature flexural strength first increased and then decreased. As the Al2O3 content increased to 1.0 vol%, the linear shrinkage was reduced to 1.64% because of the blocked viscous flow caused by Al2O3. Meanwhile, the room-temperature flexural strength and the high-temperature flexural strength were improved to 20.38 and 21.43 MPa with 1.0 vol% Al2O3, respectively, due to the increased α-cristobalite and β-cristobalite content. Therefore, using the optimal content of Al2O3 in silica-based ceramics can provide excellent mechanical properties, which are suitable for the application of ceramic cores in the manufacturing of hollow blades.
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Singh, D., R. Kumar, A. Kumar et K. N. Rai. « Synthesis and characterization of rice husk silica, silica-carbon composite and H3PO4 activated silica ». Cerâmica 54, no 330 (juin 2008) : 203–12. http://dx.doi.org/10.1590/s0366-69132008000200011.

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This paper discusses synthesis and characterization of (i) rice husk based nanosilica, (ii) nanosilica carbon composite granules and (iii) phosphoric acid activated ash silica. These have been produced by burning husk in air, charring husk in hydrogen and activating husk silica with H3PO4 respectively. X-ray diffraction studies of these products reveal increasing peak width (amorphosity) with decreasing burning temperature. The activated rice husk silica transforms to crystalline product when burnt above 1000 ºC. The variation of surface area and pore volume with burning temperature show different behavior for air fired and hydrogen charred products. Activation energy associated with change in surface area for air fired and hydrogen charred samples have also been studied. Rate of variation in surface area with temperature indicate different trend. The validations of these products have been evaluated by decolorizing capacity of standard molasses and iodine solution. The adsorptive powers of these products have been found to be highest for activated silica and lowest for hydrogenated ash.
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Wang, Ying Ying, Ling Li, Zai Yi Wang, Fu Tian Liu, Jia Hui Zhao, Ping Ping Zhang et Chun Lu. « Fabrication of Dense Silica Ceramics through a Stereo Lithography-Based Additive Manufacturing ». Solid State Phenomena 281 (août 2018) : 456–62. http://dx.doi.org/10.4028/www.scientific.net/ssp.281.456.

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Silica ceramics were fabricated via an additive manufacturing process based on stereolithography. Ceramic suspension with low viscosity and high solid loading is of importance to stereolithography based UV-curable. In this work, to meet the requirements of stereolithography, effects of temperature, additive content and ball-milling time on the viscosity of silica slurry were investigated, and properties of silica ceramics sintered at different temperature were also researched.The results show that increasing temperatures strongly decrease the viscosity unless when the temperature is above 70°C. The minimum of viscosity was observed for an appropriate addition of dispersant, which is corresponding to the best dispersion state of silica particles in the photopolymerizable monomer. And optimizing ball-milling time showed the lowest viscosity suitable for the stereolithography process. The appropriate temperature, additive content and ball-milling time facilitating stereolithography was 70°C, 2% and 60min respectively. The prepared ceramics sintered at 1220°C showed a density and flexural strength of 1.57g/cm3 and 13.31MPa respectively.
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Ding, Mei, Bin Lin, Tian Yi Sui, Shuai Yan, Jin Hua Wei et An Ying Wang. « The Tribological Properties of Water Lubricated Ceramics with Silica Nanoparticle Additives ». Solid State Phenomena 281 (août 2018) : 900–905. http://dx.doi.org/10.4028/www.scientific.net/ssp.281.900.

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Water lubricated ceramics exhibited excellent tribological properties such as super lubricity and good thermal stability. However, long running-in period and low load-carrying capacity limited the application of water lubricated ceramics. Silica nanoparticles have been shown to be highly effective additives for oil lubrication. And because of their economic efficiency, eco-friendliness and excellent tribological properties, silica nanoparticles are considered to be great potential additives for water-based lubricant, especially for ceramic lubrication. Here, we present an exploratory study on silica nanoparticles as water-based lubricant additives for ceramic lubrication. Different silica nanoparticles were synthesized, characterized and added into water as additives. The tribological properties of silica nanoparticles as water based lubricant additives were tested. The tribological mechanism of silica nanoparticles was analyzed. It was found that silica nanoparticles dispersed well and kept stable in water. Both the running-in period and the stable period were influenced by silica nanoparticles. With the optimal 5 wt. % amino modified silica nanoparticles added into the water lubricant, the running-in time dropped by 97.0% and the average friction coefficient by 86.6% compared with the pure water.
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Tanaka, R., A. Fujishima, Y. Shibata, A. Manabe et T. Miyazaki. « Cooperation of Phosphate Monomer and Silica Modification on Zirconia ». Journal of Dental Research 87, no 7 (juillet 2008) : 666–70. http://dx.doi.org/10.1177/154405910808700705.

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Ceramic restorations with resin-based adhesive systems have been the focus of recent attention in clinical dentistry. Yttrium-oxide-partially-stabilized zirconia (YPSZ) ceramics have optimized physical properties and exhibit favorable fracture toughness, though their bonding properties are problematic. Although functional phosphate monomers and silica-coating by tribochemical modification were expected to improve the bonding properties between YPSZ ceramics and resin-based adhesives, these two methods remain controversial. This study evaluated the efficiency of silica-coating by tribochemical modification of YPSZ ceramics. The application of phosphate monomer and a silane coupling agent on silica-coated YPSZ was also investigated. The silica-coating of YPSZ ceramics by tribochemical modification was not efficient, given the higher mechanical toughness of the densely sintered ceramics. Stable shear bond strength was achieved on silica-coated YPSZ ceramics with the cooperative interaction of phosphate monomer and silane coupling.
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Sych, O. Ye, N. D. Pinchuk, V. V. Pasichnyi, S. O. Ostapenko, A. V. Kotlyarchuk, G. B. Tovstonog et Ya I. Yevich. « Structure and Properties of Ceramics Based on Monetite and Nanodispersed Silica ». Powder Metallurgy and Metal Ceramics 54, no 3-4 (juillet 2015) : 175–82. http://dx.doi.org/10.1007/s11106-015-9695-6.

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Xu, Changming, Shiwei Wang, Katarina Flodström, Xiaojian Mao et Jingkun Guo. « Cellular silica-based ceramics prepared by direct foaming at high temperature ». Ceramics International 36, no 3 (avril 2010) : 923–27. http://dx.doi.org/10.1016/j.ceramint.2009.10.023.

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Bona, A. Della, K. J. Anusavice et J. J. Mecholsky. « Apparent Interfacial Fracture Toughness of Resin/Ceramic Systems ». Journal of Dental Research 85, no 11 (novembre 2006) : 1037–41. http://dx.doi.org/10.1177/154405910608501112.

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We suggest that the apparent interfacial fracture toughness (KA) may be estimated by fracture mechanics and fractography. This study tested the hypothesis that the KA of the adhesion zone of resin/ceramic systems is affected by the ceramic microstructure. Lithia disilicate-based (Empress2-E2) and leucite-based (Empress-E1) ceramics were surface-treated with hydrofluoric acid (HF) and/or silane (S), followed by an adhesive resin. Microtensile test specimens (n = 30; area of 1 ± 0.01 mm2) were indented (9.8 N) at the interface and loaded to failure in tension. We used tensile strength (σ) and the critical crack size (c) to calculate KA (KA = Yσc1/2) (Y = 1.65). ANOVA and Weibull analyses were used for statistical analyses. Mean KA (MPa·m1/2) values were: (E1HF) 0.26 ± 0.06; (E1S) 0.23 ± 0.06; (E1HFS) 0.30 ± 0.06; (E2HF) 0.31 ± 0.06; (E2S) 0.13 ± 0.05; and (E2HFS) 0.41 ± 0.07. All fractures originated from indentation sites. Estimation of interfacial toughness was feasible by fracture mechanics and fractography. The KA for the systems tested was affected by the ceramic microstructure and surface treatment.
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Poręba, Rafał, Milena Spírková et Zdeněk Hrdlicka. « Mechanical and thermomechanical properties of polycarbonate-based polyurethane-silica nanocomposites ». Processing and Application of Ceramics 5, no 3 (2011) : 155–59. http://dx.doi.org/10.2298/pac1103155p.

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In this work aliphatic polycarbonate-based polyurethane-silica nanocomposites were synthesized and characterized. The influence of the type and of the concentration of nanofiller differing in average particle size (7 nm for Aerosil 380 and 40 nm for Nanosilica 999) on mechanical and thermomechanical properties was investigated. DMTA measurements showed that Nanosilica 999, irrespective of its concentration, slightly increased the value of the storage shear modulus G' but Aerosil 380 brings about a nearly opposite effect, the shear modulus in the rubber region decreases with increasing filler content. Very high elongations at break ranging from 800% to more than 1000%, as well as high tensile strengths illustrate excellent ultimate tensile properties of the prepared samples. The best mechanical and thermomechanical properties were found for the sample filled with 0.5 wt.% of Nanosilica 999.
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Lee, J. H., J. S. Im, K. W. Song, J. O. Lee et K. Yoshinaga. « Preparation of Polyimide/Silica Hybrid Composites Based on Polymer‐Modified Silica Gel ». Journal of Macromolecular Science, Part A 41, no 9 (31 décembre 2004) : 1011–23. http://dx.doi.org/10.1081/ma-200026132.

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Lee, J. H., J. S. Im, K. W. Song, J. O. Lee et K. Yoshinaga. « Preparation of Polyimide/Silica Hybrid Composites Based on Polymer‐Modified Silica Gel ». Journal of Macromolecular Science, Part A 41, no 11 (31 décembre 2004) : 1345–57. http://dx.doi.org/10.1081/ma-200029884.

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Villalobos, Guillermo R., Shyam S. Bayya, Jasbinder S. Sanghera, Robert E. Miklos, Frederic Kung et Ishwar D. Aggarwal. « Protective Silica Coatings on Zinc-Sulfide-Based Phosphor Particles ». Journal of the American Ceramic Society 85, no 8 (août 2002) : 2128–30. http://dx.doi.org/10.1111/j.1151-2916.2002.tb00419.x.

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Valandro, Luiz Felipe, André Mallmann, Alvaro Della Bona et Marco Antonio Bottino. « Bonding to densely sintered alumina- and glass infiltrated aluminum / zirconium-based ceramics ». Journal of Applied Oral Science 13, no 1 (mars 2005) : 47–52. http://dx.doi.org/10.1590/s1678-77572005000100010.

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The objective of this study was to test two hypotheses: (1) silica coating affects the bond strength between ceramics and a resin cement; (2) bond strength is affected by the type of ceramic. Twelve blocks 5 x 6 x 8 mm of In-Ceram Zirconia (ZR) and twelve Procera AllCeram (PR) ceramics were made and duplicated in composite. Five blocks of each ceramic were treated as follows: (1) ZR + GB (laboratorial airborne particles abrasion with Al2O3 particles) + silane; (2) ZR + SC (chairside tribochemical silica coating system, Cojet); (3) PR + GB; (4) PR + SC. Two treated samples of ceramic were analyzed under SEM. The ceramic-composite blocks were cemented with Panavia F and stored in 37ºC distilled water for 7 days. They were then cut to produce bar specimens (n=30) with a bonding area of 0.6±0.1mm². Specimens were loaded to failure under tension in a universal testing machine (1 mm/min). Bond strength (sigma) values were statistically analyzed using ANOVA (Two-way) and Tukey (alpha = 0.05). Mean sigma (MPa) and standard deviation were as follows: 1) 15.1 ± 5.3; 2) 26.8 ± 7.4; 3) 12.7 ± 2.6; 4) 18.5 ± 4.7. Silica coated surfaces showed statistically higher sigma than the same substrate treated with GB only. In addition, ZR (with vitreous phase) showed higher ó than PR (without vitreous phase).
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Wang, Fei, Fei Li, Bo He, Donghong Wang et Baode Sun. « Gel-casting of fused silica based core packing for investment casting using silica sol as a binder ». Journal of the European Ceramic Society 33, no 13-14 (novembre 2013) : 2745–49. http://dx.doi.org/10.1016/j.jeurceramsoc.2013.04.002.

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Nayak, Jyoti Prakash, et Japes Bera. « Bioactive Porous Silica Ceramics Prepared Using Rice Husk Ash by Gelcasting Method ». Advanced Materials Research 548 (juillet 2012) : 12–16. http://dx.doi.org/10.4028/www.scientific.net/amr.548.12.

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Silica-based porous bioactive ceramics was prepared by gel-casting method using silica xerogel powder. Xerogel was derived from rice husk ash. 42 vol.% solid containing slurry was prepared in 1:30 (MBAM:AM) monomer cross-linker solution. The srurry was thixotropic. Gel-casted body was machined efficiently. Dired cast body was sintered at 1100oC. Apatite layer was formed on silica body during In vitro bioactivity experiment. The results suggest that the gel-casted silica ceramics can be used as a bioceramics.
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ABE, Makoto. « Silica-based waveguide devices for photonic networks ». Journal of the Ceramic Society of Japan 116, no 1358 (2008) : 1063–70. http://dx.doi.org/10.2109/jcersj2.116.1063.

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Ding, Shu Qiang, Dong Liang Jiang et Su Min Zhu. « In Situ Reaction Synthesis of Porous Silica-Matrix Ceramics ». Key Engineering Materials 280-283 (février 2007) : 1143–46. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.1143.

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A novel technique was developed to synthesize porous silica–matrix ceramics from silicon carbide and alumina with an Y2O3 addition, using pine sawdust as a pore former. The porous ceramics were fabricated at temperatures of 1300–1500 oC in air by a reaction–bonding process based on two reactions: (1)SiC+2O2→SiO2+CO2 (Oxidation) and (2)2SiO2+3Al2O3→3Al2O3·2SiO2 (Mullitization). Reaction–bonding behavior, mechanical property and open porosity were investigated as a function of Y2O3 content as well as sintering temperature and holding time. Moreover, phase composition and microstructure of the porous silica–matrix ceramics were studied by X–ray diffraction (XRD) and scanning electron microscopy (SEM).
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Newport, Anne, George R. Fern, Terry Ireland, Robert Withnall, Jack Silver et Aron Vecht. « Up-conversion emission phosphors based on doped silica glass ceramics prepared by sol–gel methods : control of silica glass ceramics containing anatase and rutile crystallites ». Journal of Materials Chemistry 11, no 5 (2001) : 1447–51. http://dx.doi.org/10.1039/b009086g.

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Rizzo, F., F. Pinto et M. Meo. « Investigation of Silica-Based Shear Thickening Fluid in Enhancing Composite Impact Resistance ». Applied Composite Materials 27, no 3 (5 mai 2020) : 209–29. http://dx.doi.org/10.1007/s10443-020-09805-7.

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López-Cuevas, Jorge, Howard Jones et Helen V. Atkinson. « Wettability of Silica Substrates by Silver-Copper Based Brazing AlloysinVacuo ». Journal of the American Ceramic Society 83, no 12 (décembre 2000) : 2913–18. http://dx.doi.org/10.1111/j.1151-2916.2000.tb01660.x.

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Löffler, Frank B., Ethel C. Bucharsky, Karl G. Schell, Stefan Heißler et Michael J. Hoffmann. « Development of silica based organic slurries for stereolithographic printing process ». Journal of the European Ceramic Society 40, no 13 (octobre 2020) : 4556–61. http://dx.doi.org/10.1016/j.jeurceramsoc.2020.05.023.

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Lequeux, Nicolas, Nathalie Richard et Philippe Boch. « Shrinkage Reduction in Silica-based Refractory Cores Infiltrated with Boehmite ». Journal of the American Ceramic Society 78, no 11 (novembre 1995) : 2961–66. http://dx.doi.org/10.1111/j.1151-2916.1995.tb09070.x.

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