Thermal conductivity of some silicate glasses and their respective crystalline products

Salama, S.N.; Salman, S.M.; Gharib, S.

doi:10.1016/s0022-3093(87)80039-x

Cited by 16 publications

(8 citation statements)

References 4 publications

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“…Due to its practical importance for application such as glass coating and glass‐ceramics, an understanding of the thermal conductivity of glass systems is essential . Similar to other physical properties of glass systems, additive properties of various oxides have been studied and an empirical relation to predict the thermal conductivity of a system on the basis of its chemical composition has been derived .…”

Section: Introductionmentioning

confidence: 99%

“…Similar to other physical properties of glass systems, additive properties of various oxides have been studied and an empirical relation to predict the thermal conductivity of a system on the basis of its chemical composition has been derived . Several studies have been carried out to find a relationship between thermal conductivity and glass structure . Salama et al .…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been carried out to find a relationship between thermal conductivity and glass structure . Salama et al . reported that both CaO/MgO and Al 2 O 3 /Li 2 O replacements result in a decrease of the thermal conductivity of the Li 2 O–CaO–MgO–Al 2 O 3 –SiO 2 crystalline and glass systems.…”

Section: Introductionmentioning

confidence: 99%

“…Most previous works on the thermal conductivity of glass systems have been focused on the solid state in low‐temperature regions. Even though accurate thermal conductivity data of molten glass are in high demand for the industry working on glassmelting, annealing, and forming process, thermal conductivity measurements of molten oxides have been limited due to its large convection and radiation effect at high temperature .…”

Section: Introductionmentioning

confidence: 99%

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Thermal Conductivity of Molten B₂O₃, B₂O₃–SiO₂, Na₂O–B₂O₃, and Na₂O–SiO₂ Systems

Kim

Morita

2015

J. Am. Ceram. Soc.

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systems was measured along with their temperature and composition. It was observed that the thermal conductivity of pure B 2 O 3 increased with temperature, until about 1400 K, and then decreased subsequently. Using the MAS-NMR, 3Q-MAS, and Raman spectroscopy, the structure of B 2 O 3 and SiO 2 in the B 2 O 3 -SiO 2 system was confirmed. Findings show that an addition of B 2 O 3 into the pure SiO 2 system causes a significant decrease in thermal conductivity, due to the formation of boroxol rings. The thermal conductivity of the Na 2 O-SiO 2 system was measured and its phonon mean free path was calculated. In addition, a positive linear relation between viscosity and thermal conductivity was observed. In the Na 2 O-B 2 O 3 system, it was found that a change in the relative fraction of 4-coordinated boron has an influence on the thermal conductivity when the concentration of Na 2 O is between 10 and 30 mol%, in which case the tetraborate unit is dominant.J. Mauro-contributing editor Manuscript No. 35633.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal Conductivity of Molten B₂O₃, B₂O₃–SiO₂, Na₂O–B₂O₃, and Na₂O–SiO₂ Systems

Kim

Morita

2015

J. Am. Ceram. Soc.

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“…For the manufacturing and use of glass products, thermal conductivity is one of the important properties. However, industrial interest about the thermal conductivity is limited to the values around room temperature [1,2]. On the other hand, scientific interest in recent years from the solid state physics about the thermal conductivity of glass is limited to the behavior below 50 K where that of amorphous solids is significantly different from that of crystalline solids, but the origin of this difference is not clarified.…”

Section: Introductionmentioning

confidence: 99%

Thermal conductivity of mixed alkali silicate glasses at low temperature

Hiroshima¹,

Hamamoto²,

Yoshida³

et al. 2008

Journal of Non-Crystalline Solids

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Heat generated during dental treatments affecting intrapulpal temperature: a review

et al. 2023

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Introduction Heat is generated and transferred to the dentine-pulp complex during various dental procedures, such as from friction during cavity preparations, exothermic reactions during the polymerisation of restorative materials and when polishing restorations. For in vitro studies, detrimental effects are possible when intra-pulpal temperature increases by more than 5.5°C (that is, the intra-pulpal temperature exceeds 42.4°C). This excessive heat transfer results in inflammation and necrosis of the pulp. Despite numerous studies stating the importance of heat transfer and control during dental procedures, there are limited studies that have quantified the significance. Past studies incorporated an experimental setup where a thermocouple is placed inside the pulp of an extracted human tooth and connected to an electronic digital thermometer. Methods This review identified the opportunity for future research and develop both the understanding of various influencing factors on heat generation and the different sensor systems to measure the intrapulpal temperature. Conclusion Various steps of dental restorative procedures have the potential to generate considerable amounts of heat which can permanently damage the pulp, leading to pulp necrosis, discoloration of the tooth and eventually tooth loss. Thus, measures should be undertaken to limit pulp irritation and injury during procedures. This review highlighted the gap for future research and a need for an experimental setup which can simulate pulp blood flow, temperature, intraoral temperature and intraoral humidity to accurately simulate the intraoral conditions and record temperature changes during various dental procedures.

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Thermal conductivity of some silicate glasses and their respective crystalline products

Cited by 16 publications

References 4 publications

Thermal Conductivity of Molten B₂O₃, B₂O₃–SiO₂, Na₂O–B₂O₃, and Na₂O–SiO₂ Systems

Thermal Conductivity of Molten B₂O₃, B₂O₃–SiO₂, Na₂O–B₂O₃, and Na₂O–SiO₂ Systems

Thermal conductivity of mixed alkali silicate glasses at low temperature

Heat generated during dental treatments affecting intrapulpal temperature: a review

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Thermal conductivity of some silicate glasses and their respective crystalline products

Cited by 16 publications

References 4 publications

Thermal Conductivity of Molten B2O3, B2O3–SiO2, Na2O–B2O3, and Na2O–SiO2 Systems

Thermal Conductivity of Molten B2O3, B2O3–SiO2, Na2O–B2O3, and Na2O–SiO2 Systems

Thermal conductivity of mixed alkali silicate glasses at low temperature

Heat generated during dental treatments affecting intrapulpal temperature: a review

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Product

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Thermal Conductivity of Molten B₂O₃, B₂O₃–SiO₂, Na₂O–B₂O₃, and Na₂O–SiO₂ Systems

Thermal Conductivity of Molten B₂O₃, B₂O₃–SiO₂, Na₂O–B₂O₃, and Na₂O–SiO₂ Systems