Features of Crystallization and Characteristics of Quartz Glass Obtained on OAO Dinur Plasma Torches from the Quartz Sand of the Ramenskii Deposit

Kolobov, A. Yu.; Сычева, Г. А.

doi:10.1134/s1087659620030049

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…Crystallization of quartz glass is strongly influenced by various impurities [16]. Obviously, uneven distribution of the impurity in the glass sample should have a strong effect on the change in crystallization rate over time.…”

Section: Materials and Methods For Studying The Effect Of Aluminum Phmentioning

confidence: 99%

Determination of the influence of aluminum phosphate on the properties of quartz ceramics

Karasik

Kozyreva

Dushyn

2021

EEJET

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One of the significant disadvantages of quartz glass-based materials is their tendency to crystallize cristobalite during firing and, as a consequence, a significant deterioration in performance. In order to prevent crystallization of quartz ceramics during sintering, a number of additives are used. However, all known options some disadvantages, namely, relatively low strength values and increased coefficient of linear thermal expansion of products.In this regard, a promising area of research is to study the effect of aluminum phosphate additives on the properties of quartz ceramics. According to the totality of properties, the addition of AlPO4 in an amount of 20 wt % has the most positive effect on the characteristics of quartz ceramics. According to differential thermal analysis, it is noted that up to a temperature of 1,200 °C, no noticeable phase and modification transformations occur in the base mixtures. In the course of the work, it was found that the most appropriate firing mode is as follows: oxidizing medium; the products are immersed in a hot furnace, after being held at the maximum temperature, they are removed from the hot furnace, cooling occurs slowly in the air. The materials obtained in this way are characterized by the following properties: α=31.6·10-7 deg-1; σcomp=153 MPa; P=2.7 %; tgδ and ε (frequency 1010 Hz, temperature 20 °C) 0.001 and 10, respectively. It is noted that the main crystal phase prevailing in the samples is aluminum phosphate. The microstructure of the material is characterized by the presence of a small number of residual pores and a densely sintered shard.The proposed solution will significantly reduce power consumption, improve production performance and increase the basic properties of polyfunctional quartz ceramic products

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Section: Materials and Methods For Studying The Effect Of Aluminum Phmentioning

confidence: 99%

Determination of the influence of aluminum phosphate on the properties of quartz ceramics

Karasik

Kozyreva

Dushyn

2021

EEJET

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Effect of Cr2O3 on the viscosity and structure of slag (or glass) of CaO-MgO-Al2O3-SiO2 system

Wang

Zhang

et al. 2023

Korean J. Chem. Eng.

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High-temperature aqueous corrosion of MO–Na2O–B2O3–SiO2 glass and glass-ceramic coatings on metallic substrates: Effect of alkaline earth metals M2+= {Ca2+, Sr2+, Ba2+}

Ötken,

Ceylan,

Çiçek

2025

Journal of the European Ceramic Society

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Features of Crystallization and Characteristics of Quartz Glass Obtained on OAO Dinur Plasma Torches from the Quartz Sand of the Ramenskii Deposit

Cited by 4 publications

References 15 publications

Determination of the influence of aluminum phosphate on the properties of quartz ceramics

Determination of the influence of aluminum phosphate on the properties of quartz ceramics

Effect of Cr2O3 on the viscosity and structure of slag (or glass) of CaO-MgO-Al2O3-SiO2 system

High-temperature aqueous corrosion of MO–Na2O–B2O3–SiO2 glass and glass-ceramic coatings on metallic substrates: Effect of alkaline earth metals M2+= {Ca2+, Sr2+, Ba2+}

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