Glass and Ceramics

article

Ceramics Based on Strontium Zirconate (A Review)

E. A. Slonimskaya, A. V. Belyakov

Glass and Ceramics > 2001 > 58 > 1-2 > 54-56

The paper reviews the available published information regarding the synthesis of strontium zirconate and the properties and application areas of ceramics based on this compound. The review also draws attention to the difficulties arising in using this material.

article

Ceramic Mixtures with Decreased Porosity for Decorative Majolica

N. S. Yugai, V. M. Loginov

Glass and Ceramics > 2001 > 58 > 1-2 > 51-53

Ceramic mixtures of low porosity were developed on the basis of poorly sinterable clay from the Gzhel' deposit with part of it mechanically activated, as well as nepheline-sienite and cullet additives. The introduction of cullet to clays of different dispersion levels made it possible to decrease the firing temperature and to shorten the process of majolica production, due to one-time firing.

article

Aspects of Synthesis of Decorite Opacified Glass

V. I. Kondrashov, G. A. Polkan, I. N. Gorina, Yu. V. Zverev, more

Glass and Ceramics > 2001 > 58 > 1-2 > 8-11

The paper presents data of the effect of the granular composition, the specific surface area of added metal powders, the batch preparation procedures, as well as the time/temperature conditions of synthesis, the type of the gas medium in the furnace, and the content interval and ratio of metallic additives on the color tone and the opacifying properties of glass melt produced.

article

The Effect of Transition Metal Oxides on the Strength, Phase Composition, and Microstructure of Cordierite Ceramics

A. A. Gusev, E. G. Avvakumov, O. B. Vinokurova, V. P. Salostii

Glass and Ceramics > 2001 > 58 > 1-2 > 24-26

The effect of transition metal oxides and the sintering temperature on the strength parameters of cordierite ceramics synthesized using mechanical activation is investigated. It is established that an introduction of oxide additives improves the strength of ceramics.

article

Sintering of Vladimirovskoe Kaolin with High-Melting Clay

L. D. Pilipchatin

Glass and Ceramics > 2001 > 58 > 1-2 > 27-28

The possibility and the conditions for improving the sinterability of Vladimirovskoe kaolin by means of using high-melting variegated-color clay from the same deposit are considered.

article

Formation of Pores in Granulated Mineral Materials under Firing

A. N. Emel'yanov

Glass and Ceramics > 2001 > 58 > 1-2 > 34-35

Based on the regularities of the growth of gas bubbles, crystallization of metals, and topochemical reactions of decomposition of solids, the kinetic equation of pore formation in granules of mineral materials under firing is derived. The obtained equations are recommended for mathematical modeling of the pore formation process in granulated foam glass and porous fillers.

article

Comparative Testing of One-Coat Enamels for Pipes

A. P. Kozlova, N. I. Guba, I. A. Drobot

Glass and Ceramics > 2001 > 58 > 1-2 > 72-74

Comparative testing of industrially produced enamels and synthesized fluorine-free one-coat enamels was carried out. It was established that fluorine-free enamels of new compositions in certain properties (firing interval, chemical resistance, impact strength, etc.) exceed the existent analogs. The enamels are environmentally safe, have been subjected to extensive industrial testing, and have been...

article

Technological Specifics of Production of Optical Elements for Mini-Kinescopes

V. I. Temnykh

Glass and Ceramics > 2001 > 58 > 1-2 > 43-45

An automated line is developed for the production of optical elements (screens, cones) for kinescopes. New molding equipment is designed, and technological parameters for the production of screens and cones 12 cm in the diagonal are developed.

article

Prospects in the Development of Aluminosilicate Ceramics

G. N. Maslennikova

Glass and Ceramics > 2001 > 58 > 1-2 > 46-50

The use of nontraditional raw materials, implementation of fundamentally new methods for mineral material concentration, and introduction of natural additives of complex compositions into aluminosilicate ceramic mixtures opens new opportunities for the development of energy- and resource-saving technologies in ceramic industry.

article

Structure and Properties of Composite Materials for Medical Application

A. Yu. Malysheva, B. I. Beletskii, E. B. Vlasova

Glass and Ceramics > 2001 > 58 > 1-2 > 66-69

The main types of composite materials for medical application are considered. The effect of the compatibility of components and the production method on the structure and properties of implant materials is investigated. Classical and specific rules for development and studies of medical-purpose composites of the calcium phosphate – glass type are postulated.

article

Deformation Resistance of Glass Ceramic Material

E. Yu. Guseva, M. N. Gulyukin

Glass and Ceramics > 2001 > 58 > 1-2 > 17-20

The production specifics of glass ceramic materials in the CaO – Al₂O₃ – SiO₂ system using the continuous rolling and the compression methods are considered. The results of studying the effect of various factors on the value of vertical deformation arising in heat treatment of such materials are described. It is demonstrated that different types of crystallization processes in heat treatment can become...

article

The Effect of Basalt Fiber Production Technology on Mechanical Properties of Fiber

V. V. Gur'ev, E. I. Neproshin, G. E. Mostovoi

Glass and Ceramics > 2001 > 58 > 1-2 > 62-65

The effect of basalt fiber production technology on the mechanical properties of fiber (strength, electricity modulus, and ultimate deformation) is considered depending on the geometrical parameters of monofilaments.

article

Improvement of Operation of Open-Flame Glass-Melting Furnaces (A Review)

S. N. Gushchin, V. G. Lisienko, V. B. Kut'in, P. N. Bodnar

Glass and Ceramics > 2001 > 58 > 1-2 > 39-42

The paper summarizes the experience of more than ten years of research performed by the authors on industrial glass-melting furnaces of various designs and is based on the analysis of mathematical modeling of heat exchange processes in the flame space of these furnaces. The mathematical modeling is based on the most adequate zonal method for heat exchange calculation. Recommendations for rational...

article

Specifics of Glass Melt Convection Across the Melting Tank for Sheet Glass

N. A. Pankova

Glass and Ceramics > 2001 > 58 > 1-2 > 3-7

The conditions and the mechanism of glass melt migration in wide melting tanks for sheet glass are investigated for different types of melting zone charts: symmetric and asymmetric arrangement of batch heaps on the glass melt surface.

article

Crystallization of SiO2 from Ethylsilicate-Based Gels

O. B. Skorodumova, G. D. Semchenko, Ya. N. Goncharenko, V. S. Tolstoi

Glass and Ceramics > 2001 > 58 > 1-2 > 31-33

The mechanism of polymerization of ethylsilicate gels catalyzed by hydrochloric, nitric, and orthophosphoric acids is studied. The effect of the ethylsilicate : water ratio in the hydrolyzate on the phase composition and the optical properties of the heat-treated powder is investigated. The synthesis of opal is registered in heat treatment of ethylsilicate gels, and an explanation for the mechanism...

article

New Laboratory Grinding Equipment

A. V. Braslavets, M. G. Denisov, A. F. Eremin

Glass and Ceramics > 2001 > 58 > 1-2 > 60-61

Equipment intended for laboratory and semi-industrial application makes it possible to crush components, in order to obtain batches with prescribed fractions sizes, mix the components, implement their mechanical activation, etc.

article

Nonequilibrium Defects in Glass and Their Role in Crystallization Processes(A Review)

N. I. Min'ko, E. I. Evtushenko, I. N. Mikhal'chuk

Glass and Ceramics > 2001 > 58 > 1-2 > 12-16

A possible mechanism of the effect of nonequilibrium defects (dislocations) on crystallization of glasses is described. The effect of precrystallization and crystallization processes on the activity of glass and glass ceramic phase in synthesis of composite materials in hydrothermal conditions is established.

article

Use of Technogenous Materials in Production of Silicate Coatings for Protection of High-Alloy Steels

Sh. U. Tel'khozieva, T. Zh. Nurbekov

Glass and Ceramics > 2001 > 58 > 1-2 > 29-30

Silicate coatings have been synthesized on the basis of metallurgical waste for the purpose of protecting high-alloy steel from corrosion under heat treatment. The main properties of the coatings are described.

article

Energy-Saving Technologies in Glass Production

V. V. Sheredeka, P. A. Krivoruchko, E. K. Polokhlivets, V. I. Kiyan, more

Glass and Ceramics > 2001 > 58 > 1-2 > 70-71

The practice of producing rolled sheet glass and polished glass for construction and engineering using energy-saving technologies is summarized.

article

Magnetic Concentration of Quartz Sand for Glass Industry

N. N. Konev, I. P. Salo, Yu. P. Lezhnev, V. P. El'skii

Glass and Ceramics > 2001 > 58 > 1-2 > 57-59

The authors consider the production experience of a separator of the new generation with constant magnets based on Nd – Fe – B, which was designed by ÉMKO Company for producing quartz glass concentrates of grades OVS-030 and OVS-025, using dry magnetic separation. The proposed separator has several advantages compared to electromagnetic separators of the EVS series, which have the same purpose.

INFONA - science communication portal

Glass and Ceramics

Ceramics Based on Strontium Zirconate (A Review)

Ceramic Mixtures with Decreased Porosity for Decorative Majolica

Aspects of Synthesis of Decorite Opacified Glass

The Effect of Transition Metal Oxides on the Strength, Phase Composition, and Microstructure of Cordierite Ceramics

Sintering of Vladimirovskoe Kaolin with High-Melting Clay

Formation of Pores in Granulated Mineral Materials under Firing

Comparative Testing of One-Coat Enamels for Pipes

Technological Specifics of Production of Optical Elements for Mini-Kinescopes

Prospects in the Development of Aluminosilicate Ceramics

Structure and Properties of Composite Materials for Medical Application

Deformation Resistance of Glass Ceramic Material

The Effect of Basalt Fiber Production Technology on Mechanical Properties of Fiber

Improvement of Operation of Open-Flame Glass-Melting Furnaces (A Review)

Specifics of Glass Melt Convection Across the Melting Tank for Sheet Glass

Crystallization of SiO2 from Ethylsilicate-Based Gels

New Laboratory Grinding Equipment

Nonequilibrium Defects in Glass and Their Role in Crystallization Processes(A Review)

Use of Technogenous Materials in Production of Silicate Coatings for Protection of High-Alloy Steels

Energy-Saving Technologies in Glass Production

Magnetic Concentration of Quartz Sand for Glass Industry

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