Effect of Na2O addition on the properties and structure of germanate glass

Wang, M.C.; Wang, J.S.; Hon, Min–Hsiung

doi:10.1016/0272-8842(95)95881-h

Cited by 9 publications

(4 citation statements)

References 17 publications

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“…3 also indicates that the T c increases from 898 to 939°C when the Na 2 O increases from 0 to 0.6 mol. This phenomenon has also been reported by Wang et al [20] and Guides et al [28]. On the other hand, the T c of C 6 and C 7 does not appear when the Na 2 O contents are 0.8 and 1 mol because of an abrupt change of the M g .…”

Section: Results Of Thermal Analysissupporting

confidence: 50%

“…3 causes the continuous disappearance of the high-viscosity phase, creating a rather abrupt change of the M g occurred when the Na 2 O content is greater than 0.6 mol. This phenomenon has also been found in the Li 2 O(Na 2 O)-CaO-Al 2 O 3 -GeO 2 glasses [20]. Mazurin et al [26,27] have pointed out that the effect of M g on the phase-separated glasses and found that M g is controlled by the higher viscosity phase as long as the phase is continuous.…”

Section: Discussionmentioning

confidence: 85%

“…An extensive literature search shows that details of the chemical resistance, electrical resistivity, optical properties and structure of mixed alkali calcium aluminogermanate glass systems have been studied so far [18][19][20]. However, the properties ad structure related to the substitution of Na 2 O to the Li 2 O-Al 2 O 3 -4SiO 2 glasses have not been elaborated.…”

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Properties and structure of (1−x)Li2O–xNa2O–Al2O3–4SiO2 glass systems

Wang

Cheng

Shih

et al. 2007

Journal of Non-Crystalline Solids

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Section: Results Of Thermal Analysissupporting

confidence: 50%

Section: Discussionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 97%

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Properties and structure of (1−x)Li2O–xNa2O–Al2O3–4SiO2 glass systems

Wang

Cheng

Shih

et al. 2007

Journal of Non-Crystalline Solids

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“…Thus, developing alternative mid-IR transparent materialscapable of (i) withstanding relatively high pressure and temperature and (ii) being compatible for bonding with Si waferis of first interest to produce HP/HT mid-IR microreactors [29]. To this end, germanium oxide-based glasses appear as promising candidates in terms of mid-IR transmission, thermal and mechanical properties [30][31][32][33][34]. Moreover, a careful design of the germanate glass composition may also allow to employ the anodic bonding process, which has demonstrated its strong efficiency for assembling Si-Pyrex® HP/HT microdevices [35,36].…”

Section: Introductionmentioning

confidence: 99%

Anodic bonding of mid-infrared transparent germanate glasses for high pressure - high temperature microfluidic applications

Ari

Louvet

Ledemi

et al. 2020

Science and Technology of Advanced Materials

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High pressure/high-temperature microreactors based on silicon-Pyrex® microfabrication technologies have attracted increasing interest in various applications providing optical access in high-pressure flow processes. However, they cannot be coupled to infrared spectroscopy due to the limited optical transparency (up to~2.7 μm in the infrared region) of the Pyrex® glass substrate employed in the microreactor fabrication. To address this limitation, the alternative approach proposed in this work consists in replacing the Pyrex® glass in the microreactor by a mid-infrared transparent glass with thermal and mechanical properties as close as possible or even better to those of the Pyrex®, including its ability for silicon-wafers coupling by the anodic bonding process. Glasses based on germanate GeO 2 , known for their excellent transmission in the mid-infrared range and thermal/thermo-mechanical properties, have been thus evaluated and developed for this purpose. The optical, mechanical, thermal and electrical conductivity properties of adapted glass compositions belonging to five vitreous systems have been systemically investigated. The glass composition 70GeO 2 -15Al 2 O 3 -10La 2 O 3 -5Na 2 O (mol.%) was defined as the best candidate and produced in large plates of 50 mm diameter and 1 mm thickness. Anodic bonding tests with Si-wafers have been then successfully conducted, paving the way for the development of fully mid-infrared transparent silicon-glass microreactors. ARTICLE HISTORY

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Effect of Pr3+ concentration on the luminescent properties of Ca2LuScGa2Ge2O12 compound with garnet structure

Zhang

et al. 2022

Journal of Solid State Chemistry

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Effect of Na2O addition on the properties and structure of germanate glass

Cited by 9 publications

References 17 publications

Properties and structure of (1−x)Li2O–xNa2O–Al2O3–4SiO2 glass systems

Properties and structure of (1−x)Li2O–xNa2O–Al2O3–4SiO2 glass systems

Anodic bonding of mid-infrared transparent germanate glasses for high pressure - high temperature microfluidic applications

Effect of Pr3+ concentration on the luminescent properties of Ca2LuScGa2Ge2O12 compound with garnet structure

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