Glass Ceramics
Contribution of di- and trivalent oxides to crystal phase formations and properties of yttrium aluminosilicate glass-ceramics
... and glass-ceramics based on LiAlSi 2 O 6 -YAlSiO 5 system were ...the glass compositions. On the other hand, the glass-ceramics’ microhardness (7245– 8175 MPa) was markedly improved ...
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Synthesis and Structural Studies of Er3+ Containing Lead Cadmium Fluoroborate Glasses and Glass-Ceramics
... Figure 2 shows the X-ray diffraction patterns of the undoped and Er-doped glassy and crystallized 40B 2 O 3 - 30PbF 2 -30CdF 2 samples. Peaks marked with circles are those reported on the 6-0251 JCPDS file for the cubic ...
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Evaluation of the biocompatibility of glass and glass ceramics of the SNCP (SiO2-Na2O-CaO-P2O5) system.
... OF GLASS AND GLASS CERAMICS OF THE SNCP (SiO 2 -Na 2 O-CaO-P 2 O 5 ) ...for glass powders and bulk glass ceramics belonging to the SNCP (SiO 2 -Na 2 O-CaO-P 2 O 5 ) ...
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Production of highly porous glass-ceramics from metallurgical slag, fly ash and waste glass
... Bossert Glass-ceramics composites were produced based on fly-ash obtained from coal power stations, metallurgical slag from ferronickel industry and waste glass from TV monitors, windows and ...flask ...
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INFLUENCE OF SURFACE TREATMENT AND PURIFICATION METHODS OF CO-115M GLASS-CERAMICS ON OPTICAL CONTACT STRENGTH
... Subject of Research. We present findings of the optical contact for details made of СО-115М glass-ceramics brand mark. The optical contact is the main method of joining parts made of CO-115M ...
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Thermal decomposition of polyurethane foams for manufacturing LZSA cellular glass ceramics.
... THERMAL DECOMPOSITION OF POLYURETHANE FOAMS FOR MANUFACTURING LZSA CELLULAR GLASS CERAMICS. Characterization of the thermal decomposition of polyurethane (PUR) foams was performed by Fourier-transformed ...
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Surface treatments for repair of feldspathic, leucite and lithium disilicatereinforced glass ceramics using composite resin
... disilicate-reinforced glass ceramic, the etching with hydrofluoric acid promoted the highest µTBS values, which is in agreement with Colares et ...the ceramics tested in this ...reinforced glass ...
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Surface degradation of glass ceramics after exposure to acidulated phosphate fluoride
... Not only the oral environment but also some prevention media could create damage to the ceramics. Professional fluoride applications are recommended for patients with high caries risks every three months or daily ...
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Glass-ceramic from steelmaking slag.
... of glass-ceramics is an alternative route for the commercial use of metallurgical ...of glass-ceramics may find commercial applications owing to their low cost, good mechanical properties and ...
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Análise de ambiente químico local em rede amorfa e cristalina: O efeito de solicitações mecânicas e térmicas
... parent glass Calcium aluminosilicate (CAS) and low silica calcium aluminosilicate ...efficiency, glass ceramic morphology may be ...CAS34 glass - containing 34wt% of SiO 2 - to obtain a transparent ...
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Evaluation of marginal discrepancy on all-ceramic crowns manufactured by CAD/CAM versus conventional methods
... traditional hydrofluoric acid etching to aid adhesion (DERAND et al. 2005). Therefore, several surface treatments, especially airborne abrasion and selective infiltration etching, have been reported to facilitate the ...
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Mat. Res. vol.20 número2
... the glass forming ability was studied in potassium phosphate glasses with increasing amounts of TiO 2 in order to obtain a glass-ceramic with photocatalytic ...all glass samples were investigated by ...
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Mat. Res. vol.1 número1
... In the above-described situations, it has been assumed that ceramic grains are fully separated by the liquid phase. This may, however, not be the case if attractive forces between the grains are taken in account. ...
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Uranium glass in museum collections
... colouring glass and as colouring agents in ceramic glazes since the 19th ...for glass objects, the history of uranium in glass is not very ...the glass manufacturers there is no reliable ...
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Addressing sealing and counter-electrode challenges of dye solar cells towards industrialization
... the glass frit ...[3]. Glass frit bonding can be applied in a vast number of applications such as microsensors [4] gyroscopes [3], complementary metal-oxide-semiconductor (CMOS) wafers [5] leadless chip ...
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Production of ceramics from coal fly ash
... Dense ceramics are produced from fly ash from REK Bitola, Republic of Ma- cedonia. Four types of fly ash from electrofilters and one from the collected zone with particles <0.063 mm were the subject of this ...
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Structural Analysis of Borotellurite Glass
... studied glass is in the same range as reported by El-Mallawany [13] and El- Moneim [12] ...the glass transition temperature, thus the structure will be more compact and cross-link so that the elastic moduli ...
5
Relação entre os condicionamentos operante e respondente no transtorno obsessivo-compulsivo.
... A despeito de ainda não ter sido encontrado um entendimento sólido para a etiologia do TOC (Miguel, Rauch & Jenike, 1998; Gonzalez, 1999; Parmet, Glass & Glass, 2004; Ronchetti, [r] ...
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Archaeometric study of Guará, Goiás, Brazil ceramics.
... ARCHAEOMETRIC STUDY OF GUARÁ, GOIÁS, BRAZIL CERAMICS. There is no evidence of urban civilization in Brazilian prehistory; most inhabitants lived in tribal groupings, probably with regional economic integration ...
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Viviana Inês Murta Girão- Student no. 297 Masters in Management – FEUNL, with supervision of Professor Els de Wilde June, 2009
... the glass and 30 centiliters to the volume of the ...the glass and the volume of liquid leftover, using the Pearson Correlation and, thus the assumption of normal distribution of both variables is not ...
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