Properties of zinc borosilicate glasses

Hamilton, E.H.; Waxler, Roy M.; Nivert, J.M.

doi:10.6028/jres.062.011

Cited by 17 publications

(7 citation statements)

References 7 publications

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“…12,13 Interestingly, liquid-liquid phase separation in the melt occurs for compositions near the 1ZnO : 1B 2 O 3 ratio. [12][13][14][15] The older literature often states that the first glass forms with B56 mol% ZnO (B4ZnO-3B 2 O 3 ), which may be just because the 4 : 3 ratio was typically the next batched molar ratio after the 1 : 1 ratio in the investigators' iterations through the composition space. 12,13 However, an early report by Hamilton et al suggests that the onset of homogenous glass formation in the xZnO-(1 À x)B 2 O 3 system is somewhere in the range 0.52 o x r 0.55.…”

Section: Introductionmentioning

confidence: 99%

Zinc borate glasses: properties, structure and modelling of the composition-dependence of borate speciation

Topper

Möncke

Yougman

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Zinc borate glasses: properties, structure and modelling of the composition-dependence of borate speciation

Topper

Möncke

Yougman

et al. 2023

Phys. Chem. Chem. Phys.

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“…The value of Poisson's ratio used in the case of the enamel, composed of bismuth‐zinc borosilicate glass frits, is 0.27. In the literature, the value of Poisson's ratio for similar composition range between 0.25 and 0.33 . For the sintered silver, the Poisson's ratio of fully dense pure silver has been employed.…”

Section: Resultsmentioning

confidence: 99%

“…In the literature, the value of Poisson's ratio for similar composition range between 0.25 and 0.33. 25,26 For the sintered silver, the Poisson's ratio of fully dense pure silver has been employed. In the literature, the average value of the Poisson's ratio measured on the complete thick film has been found to decrease with the amount of porosities [3][4][5][6][7] .However, in the case of nanoindentation, the size of the indents is smaller than the silver particles size.…”

Section: Young's Modulus and Hardnessmentioning

confidence: 99%

Measurement of the mechanical properties of silver and enamel thick films using nanoindentation

Walch

Roos

2019

Int J of Appl Glass Sci

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Analyzing material properties of thick film multilayers deposited onto soda‐lime silicate glass raises several challenges since these layers can exhibit complex multiphase microstructures. The mechanical properties of sintered silver and glass enamel thick films have been investigated using nanoindentation methods to provide deeper understanding of the composite stack in‐service failure mechanisms. The spatial distribution of the Young's modulus and hardness have been studied on the cross section of the layers to avoid the influence of surface roughness and underlying glass substrate. The apparent indentation fracture toughness of the layers has been evaluated via SEM and high‐resolution surface topography images of the hardness imprints. A modified Berkovich indenter has been employed to study the elastic and plastic deformation regimes while the fracture deformation regime has been investigated using a cube‐corner indenter. In the enamel layer, copper chromite spinel pigments were found to provide a beneficial effect on the films mechanical performance due to their significantly higher elastic, hardness, and toughness properties compared to the surrounding amorphous phase. The amorphous phase of the enamel layer and the glass substrate has comparable mechanical properties, while the fracture toughness of sintered silver is higher, partially explaining the failure initiation in the enamel layer.

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“…In the literature, the value of Poisson's ratio for similar bismuth zinc borosilicate glass frits range between 0.25 and 0.33. 24,25 The value of the Young's modulus of the enamel n°2 measured by curvature technique is approximately 40 GPa, by using a Poisson's ratio of 0.27. In the literature, the average Young's modulus of the enamel n°2, measured by nanoindentation technique, has been reported to be 96.4 ± 27.1 GPa.…”

Section: Discussionmentioning

confidence: 99%

Simultaneous measurement of coefficient of thermal expansion and biaxial modulus of enamel thick films deposited on glass substrates by curvature technique

Walch

Benedetto

Bacharouche

et al. 2020

Int J of Appl Glass Sci

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The measurement of the thermoelastic properties of enamel thick films deposited onto soda‐lime silicate glass is challenging. The film properties can be modified by the interdiffusion between the glass substrate and the enamel and by the crystallization that occur during the sintering. The average biaxial modulus and coefficient of thermal expansion of several enamel thick films deposited onto 700 µm glass substrates have been simultaneously measured using the curvature method. The value of the coefficient of thermal expansion measured with a dilatometer on enamel bulk samples is significantly higher, associated with the absence of diffusion and a different enamel structure. The interdiffusion of elements between the enamel film and the glass substrate has been demonstrated with Time‐of‐Flight Secondary Ion Mass Spectrometry (TOF‐SIMS). The amount of porosity ratio presents in the enamel film, evaluated via Scanning electron microscopy(SEM), has a great influence on the biaxial modulus. The amount of compressive stress in the enamel, calculated from the film thermoelastic properties, is strongly correlated with the mechanical performance of enameled glasses, investigated by Ring On Ring methods. Therefore, a high Young's modulus for the enamel and a mismatch of the coefficient of thermal expansion between the enamel film and substrate, the film having the lowest value, has been found to increase significantly the mechanical performance of the stack.

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Properties of zinc borosilicate glasses

Cited by 17 publications

References 7 publications

Zinc borate glasses: properties, structure and modelling of the composition-dependence of borate speciation

Zinc borate glasses: properties, structure and modelling of the composition-dependence of borate speciation

Measurement of the mechanical properties of silver and enamel thick films using nanoindentation

Simultaneous measurement of coefficient of thermal expansion and biaxial modulus of enamel thick films deposited on glass substrates by curvature technique

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