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21.
CERAMICS WITH ULTRAHIGH PERMITTIVITY VALUES: COMPOSITIONS, SYNTHESIS METHODS AND PROPERTIES AT LOW AND MEDIUM FREQUENCIES
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(Not-set)
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An overview of dielectric materials with high (more than 10 000) values of relative permittivity is presented. Most of the compositions of these materials are based on systems that include ferroelectric ...
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22.
INFLUENCE OF REFRACTORY FILLERS ON THE PROPERTIES OF CERAMICS BASED ON HIGH CONCENTRATED SILICA GLASS SUSPENSIONS
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(Not-set)
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... sintering temperature on the phase composition, structure, porosity and density of the materials were studied. It was found that the strength of the ceramics increases in the temperature range 1300…1400 ...
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23.
TRANSPARENT GLASS-CERAMICS BASED ON LITHIUM ALUMINOSILICATE SYSTEM
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(Not-set)
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Methods of laser micro- and nanomodification structure of transparent dielectrics open promising prospects for the creation of a new type glass-crystalline materials and new applications. In this work, ...
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24.
INVESTIGATION OF THE KINETICS OF VACUUM SINTERING OF OPTICAL LUMINESCENT CERAMICS Y3-xScxA5O12:Cr
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(Not-set)
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... a predominant scandium content in the dodecahedral position reach maximum density at lower temperatures compared to compositions containing a greater amount of scandium in octahedral positions. It was ...
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25.
INFLUENCE OF YAG CERAMIC POWDERS GRINDING CONDITIONS OF ON THE PROPERTIES OF OPTICAL CERAMICS
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(Not-set)
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In this study, the changes in the morphology and degree of agglomeration of both precursor powders and ceramic YAG powders under varying grinding conditions was considered. The effect of these parameters ...
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26.
THE COMBINED EFFECT OF SINTERING ADDITIVES MgO AND TEOS ON THE STRUCTURE AND OPTICAL PROPERTIES OF CERAMICS YAG:Yb, Er
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(Not-set)
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In this work, the effect of sintering additives based on magnesium oxide (MgO) and silicon oxide (TEOS) in concentrations from 0.02 to 0.10 wt. % and 0.2 to 0.5 wt. %, respectively, was investigated on ...
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27.
SINTERING CHARACTERISTICS AND THERMAL PROPERTIES OF POROUS CERAMICS BASED ON HYDROPHLOGOPITE AND REFRACTORY CLAYS
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(Not-set)
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... according to the ferruginous hydrophlogopite type in an amount of 50 wt. %. The apparent density and mechanical strength were studied depending on the pressing pressure, shrinkage during firing. The use ...
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28.
THE EFFECT OF THE ACRYLATE MONOMER ON THE CHARACTERISTICS OF PHOTOPOLYMERIZABLE SUSPENSIONS FOR THE PRODUCTION OF CERAMICS FROM STABILIZED ZrO2
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(Not-set)
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The influence of the structure and properties of acrylate monomers on the rheology and polymerization of suspensions containing partially stabilized zirconium dioxide, a dispersant and a photoinitiator ...
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29.
PIEZOCERAMICS TECHNOLOGIES: APPROACHES FOR ENVIRONMENTAL IMPACT MITIGATION
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(Not-set)
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The functional ceramic materials are broadly used in the electronic industry. Many of them are comprised of ferroelectric materials because of their outstanding piezoelectric and dielectric properties. ...
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30.
WOLLASTONITE CERAMICS FROM CHALK AND DIATOMITE FOR REFRACTORY INSULATION
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(Not-set)
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... wollastonite. The compressive strength of the samples is 22 – 23 MPa at an average density of 1270 – 1300 kg/m3. The material has a stable thermal coefficient of linear expansion (TCLE) under 7.76?10–6 ...
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31.
ASPECTS OF OBTAINING HOMOGENEOUS DENSE CERAMICS FROM NON-SCARCE RAW MATERIALS
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(Not-set)
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The combined effect of the microwave field and the content of reinforcing medium-dispersed silicon carbide particles on the density of a ceramic material based on montmorillonite containing clay of the ...
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32.
Influence of Slip Evacuation on Properties of Large-Size Products from Quartz Ceramics
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(Not-set)
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... study, it was found that evacuation of a slip based on quartz glass before molding ceramic blanks makes it possible to increase the level of density values ??of the ceramic material by 0.01 g / cm 3 ...
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33.
Composite Corundum Ceramics with Reinforcing Carbon Nano-tubes, Modified with Eutectic Additives
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(Not-set)
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The characteristics of composite materials of the Al 2 O 3 & # 8211; carbon nanotubes & # 8211; eutectic additives. The influence of the content of the reinforcing component, as well as the mode of ...
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34.
Nickel Layer Control on Metallized Ceramics
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(Not-set)
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The effect of the thickness and chemical composition of the nickel surface on the vacuum density of VK 94 ceramics after soldering with PSr72 solder has been investigated. It has been established that ...
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35.
The Influence of Nepheline Syenite and Waste of Mineral Wool Production on the Operational Properties of Ceramics
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(Not-set)
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... as well as their frost resistance has been investigated. The use of NS in the amount of 5 - 15 & # 37; increases the compressive strength of the samples to 17 & # 37; and reduces the density, water absorption ...
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36.
Dielectric Characteristics of Low-Density Spheroplastics Based
on Phenylon and Hollow Ceramic Microspheres in the Centimeter
Microwave Range
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(Not-set)
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The dielectric characteristics of heat-resistant spheroplastics based on hollow ceramic microspheres and a heat-resistant binder based on aromatic polyamide - phenylone - have been investigated. The dielectric ...
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37.
Drilling of Porous Aluminosilicate Ceramics
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(Not-set)
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... from the affected zone; melt less volatile component; sealing of ceramics adjacent to the walls; glass transition of the liquid phase upon cooling after irradiation. These effects depend on the density ...
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38.
Effect of Combined Use of Mineral Wool Production Waste and Catalytic Cracking Catalyst Waste on the Structure and Properties of Ceramics
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(Not-set)
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... that, in comparison with the control composition, MB during firing at a temperature of 1080 ° C acts as a fluxing additive, increasing the density of samples by 3.3 °, compressive strength by 19.2 ° C, ...
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39.
Spheroplastics Reduced Density Based on the Hollow Ceramic Microspheres and the Binder of Olygomethylsilsesquioxane
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(Not-set)
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Spheroplastics based on hollow ceramic microspheres and an organosilicon binder with a ladder structure capable of transition to a ceramic-like state at elevated temperatures are considered. The physical ...
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40.
Physical and Mechanical Studies of Ancient Ceramics Detected in the Territory of Kyrgyzstan
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(Not-set)
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... of complementary methods: hardness measurement by the Rockwell method and density determination by hydrostatic weighing. The apparent density and water absorption were also determined and the open porosity ...
