Nucleation and crystallization behavior of glass-ceramic materials in the Li2O–Al2O3–SiO2 system of interest for their transparency properties

Riello, Pietro; Canton, Patrizia; Comelato, N; Polizzi, Stefano; Verità, Marco; Fagherazzi, G.; Hofmeister, H.; Hopfe, S.

doi:10.1016/s0022-3093(01)00518-x

Cited by 110 publications

(44 citation statements)

References 17 publications

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“…β-Spodumenecontaining glass-ceramics also have the potential to meet the dielectric constant and thermal expansion requirements for integrated circuit substrates [1][2][3][4] .…”

Section: Introductionmentioning

confidence: 99%

Structure and properties of the lithium aluminosilicate glasses with yttria addition

Zheng

Cheng

et al. 2007

J. Wuhan Univ. Technol.

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The structure and properties of lithium aluminosilicate glasses containing Y 2 O 3 were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), differential thermal analysis (DTA) and Raman spectroscopy. Effects of yttria on the viscosity of LAS glasses were investigated, and found that the introduction of yttria effectively decreased the viscosity of LAS glasses. In Raman spectra of initial glasses it is shown the starting glasses are in almost complete disorder, since all bands are weak and broad. In the spectra of heat-treated specimens some new narrow bands appear and increase in intensity, and the frequency changes with varied yttria addition. The DTA and XRD results show that yttria controlled the crystallization of LAS glasses by increasing the crystallization peak temperature (T p ), however, the main crystalline phase of glass-ceramics was β-spodumene.

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“…β-Spodumenecontaining glass-ceramics also have the potential to meet the dielectric constant and thermal expansion requirements for integrated circuit substrates [1][2][3][4] .…”

Section: Introductionmentioning

confidence: 99%

Structure and properties of the lithium aluminosilicate glasses with yttria addition

Zheng

Cheng

et al. 2007

J. Wuhan Univ. Technol.

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“…11,12 Glass-ceramics in this group are usually produced by promoting the volume nucleation in melt-derived bulk. It is possible to obtain a large number of nuclei (up to 10 17 nuclei/cm 3 ) by introducing ZrO 2 , TiO 2 , P 2 O 5 or a mixture of them.…”

Section: Introductionmentioning

confidence: 99%

Erbium-doped LAS glass ceramics prepared by spark plasma sintering (SPS)

Riello

Bucella

Zamengo

et al. 2006

Journal of the European Ceramic Society

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“…The crystal composition was Li2O-Al2O3-6SiO2, estimated from the (406) peak position in the XRD pattern (Iwatsuki et al, 1974). The ratio of precipitated TiO2 and ZrO2 was 60%, quoted from the literature (Riello and Hopfe, 2001). All the Fe2O3 was assumed to remain in the glass phase.…”

Section: Resultsmentioning

confidence: 99%

“…Shortly after the work of Stookey, Tashiro and Wada (1963) found that ZrO2 is an effective nucleation agent, and transparent β-quartz s.s. glass-ceramics in Li2O-Al2O3-SiO2 system can be easily obtained by the addition of ZrO2 and TiO2 (Petzoldt, 1963;Beall, 1967;Müller, 1972;Tashiro et al, 1976). By improving the transparency and other characteristics by optimization of the composition and the conditions of the heat treatment for crystallization through many basic studies on nucleation and crystal growth (Nakagawa, 1972;Riello and Hopfe, 2001;Dymshits, 2005), the application of the transparent glassceramics has become widespread, such as in electronic and optical devices, production equipment, and home and cooking appliances.…”

mentioning

confidence: 99%

Coloration Mechanism of Fe Ions in β-Quartz s.s. Glass-Ceramics with TiO2 and ZrO2 as Nucleation Agents

Nakane

Kawamoto

2017

Front. Mater.

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Transparent β-quartz s.s. glass-ceramics in Li2O-Al2O3-SiO2 system have an undesirable brown color owing to Fe ions as a contaminant, whereas the mother glass normally has a clear appearance. Elucidation of the coloration mechanism during crystallization is important for industry to develop highly transparent materials. In this study, the mother glass contained SiO2, Al2O3, and Li2O as its principal constituents and TiO2 and ZrO2 as nucleation agents. The amount of contaminant Fe ions in the form of Fe2O3 was 0.03 wt%. It was confirmed that the coloration was appeared by the coexistence of Fe and Ti ions in the glass matrix based on the experimental results using Ti-containing and Ti-free glasses with a composition identical to that of the glass matrix. The coordination and oxidation state of the Fe ions were not changed by the coexistence of Ti ion according to the results of X-ray absorption near-edge structure measurement. The coloration is considered to be due to the formation of Fe-O-Ti by the concentration of Fe and Ti ions in the glass matrix phase during the crystallization process.

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Nucleation and crystallization behavior of glass-ceramic materials in the Li2O–Al2O3–SiO2 system of interest for their transparency properties

Cited by 110 publications

References 17 publications

Structure and properties of the lithium aluminosilicate glasses with yttria addition

Structure and properties of the lithium aluminosilicate glasses with yttria addition

Erbium-doped LAS glass ceramics prepared by spark plasma sintering (SPS)

Coloration Mechanism of Fe Ions in β-Quartz s.s. Glass-Ceramics with TiO2 and ZrO2 as Nucleation Agents

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