Crystallization statistics. A new tool to evaluate glass homogeneity

Souza, Luciana Alves de; Leite, Magda Lauri Gomes; Zanotto, Edgar Dutra; Prado, Miguel Oscar

doi:10.1016/j.jnoncrysol.2005.09.021

Cited by 11 publications

(15 citation statements)

References 1 publication

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“…It was recently demonstrated [13] that it is possible to gauge the crystallization homogeneity of a glass by performing a crystallization statistics analysis. The proposed method is based on the fact that for a certain nucleation time at a given temperature, each volume element of a homogeneous glass has the same probability to nucleate a crystal.…”

Section: Crystallization Statistics Methodsmentioning

confidence: 99%

Method to assess the homogeneity of partially crystallized glasses: Application to a photo-thermo-refractive glass

Lumeau

Sinitskii

Glebova

et al. 2009

Journal of Non-Crystalline Solids

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a b s t r a c tWe describe a new method for the study of both optical and crystallization homogeneity of partially crystallized glasses or glass-ceramics at different spatial scales (from 100 mm to 1 lm). The method relies on the association of different techniques, such as interferometry, optical microscopy and differential scanning calorimetry. The method was tested to probe the optical and crystallization homogeneity of both asmade and UV-exposed, and pre-nucleated samples of a photo-thermo-refractive (PTR) glass. This study demonstrates that pure UV-exposure did not lead to an improvement of the crystallization homogeneity of the glass. However, the benefit of associating UV-exposure and nucleation thermal treatment was clear. These combined treatments permit to homogenize the crystal distribution in PTR glass at millimeter and micron scale. This result is of major commercial interest.

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Section: Crystallization Statistics Methodsmentioning

confidence: 99%

Method to assess the homogeneity of partially crystallized glasses: Application to a photo-thermo-refractive glass

Lumeau

Sinitskii

Glebova

et al. 2009

Journal of Non-Crystalline Solids

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“…Souza et al [5] have already reported on a similar statistical approach, but in that case the statistical analyses were based on the volume distribution of crystals developed through thermal treatments.…”

Section: Introductionmentioning

confidence: 99%

Ion exchange as a new tool to evaluate and quantify glass homogeneity

Švecová

Špirková

Nekvindová

et al. 2010

Journal of Non-Crystalline Solids

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“…Glass devitrification proceeds by one of two classical mechanisms, namely heterogeneous nucleation and growth triggered by impurities or surfaces, or by homogeneous nucleation and growth throughout the sample volume [1,2]. While any non-equilibrium liquid or glass should undergo homogeneous nucleation if given clean enough conditions and enough time, here we distinguish between systems which undergo homogeneous nucleation on typical laboratory time scales and those that do not.…”

Section: Introductionmentioning

confidence: 99%

Correlation of network structure with devitrification mechanism in lithium and sodium diborate glasses

Chen

Werner‐Zwanziger

Zwanziger

et al. 2010

Journal of Non-Crystalline Solids

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The intermediate-range structure of the network former in lithium and sodium diborate was studied using nuclear magnetic resonance spectroscopy. Specifically, 11 B{ 10 B} rotational-echo double resonance experiments were employed to determine the distribution of dipole couplings between these isotopes and in this way determine whether the intermediate range order of the borate network was the same in the glasses as in the crystal forms of these compounds. It was found that in the lithium diborate case the networks are in fact similar between glass and crystal, while in sodium diborate they differ substantially. Because lithium diborate shows homogeneous nucleation and growth on the laboratory time scale while sodium diborate does not, it was concluded that structural similarity between glass and crystal of the glass former correlates strongly with nucleation mechanism.

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Crystallization statistics. A new tool to evaluate glass homogeneity

Cited by 11 publications

References 1 publication

Method to assess the homogeneity of partially crystallized glasses: Application to a photo-thermo-refractive glass

Method to assess the homogeneity of partially crystallized glasses: Application to a photo-thermo-refractive glass

Ion exchange as a new tool to evaluate and quantify glass homogeneity

Correlation of network structure with devitrification mechanism in lithium and sodium diborate glasses

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