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1.
Biomaterials based on calcium phosphates and silicates mixtures: a study of possible fabrication by precipitation from water solutions
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(Biomaterials)
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... possibility of forming mixtures of hydroxyapatite and calcium silicate in alkaline solutions was established. It has been shown that the precipitation of calcium carbonate is also probable in the case ...
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2.
High-temperature interaction between calcium and strontium titanodisilicates
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(At the enterprises and institutes)
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High-temperature interactions between calcium and strontium titanodisilicates have been investigated. The formation of two limited series of tetragonal solid solutions based on these initial compounds ...
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3.
SOL-GEL SYNTHESIS AND EFFECTS OF NEODYMIUM AND EUROPIUM OXIDES ON THE STRUCTURE FORMATION OF CALCIUM MONOALUMINATE
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(Not-set)
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Calcium monoaluminate was synthesized using the sol-gel method and the effect of europium and neodymium oxides on the synthesis and kinetics of structure formation in the temperature range of 500 – 1000 ...
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4.
Ceramics in the Са2Р2О7-Са(РО3)2 System Obtained by Firing of Cement Stone Based on β-tricalcium Phosphate and Monocalcium Phosphate Monohydrate
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(Not-set)
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Ceramics in the Ca 2 P 2 O 7 -Ca (PO 3 ) 2 was obtained by firing a cement stone made from a powder mixture containing ?-tricalcium phosphate ?-Ca 3 (PO 4 ) 2 and monocalcium phosphate monohydrate ...
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5.
Chemical Transformations as a Tool for Managing the Properties of Calcium Carbonate Powder
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(Not-set)
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Powder of calcium carbonate CaCO 3 (calcite) with a particle size of 100-200 nm and a shape close to isometric was obtained by heat treatment at 600 ° C of a product synthesized from a 2M aqueous solution ...
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6.
The degree of polymerization of silicic acid in solutions of alkali metal silicates
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(At the enterprises and institutes)
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Using the method of kinetic colorimetry, the degree of polymerization and sizes of silicon-oxygen anions in solutions of water glass were studied depending on the silicate modulus, on the density (concentration) ...
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7.
Phase composition and properties of structural ceramics depending on calcium carbonates and ferrous oxides content
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(Science for ceramic production)
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The features of the formation of the structure and properties of ceramic bricks are established depending on the content of calcium carbonates and iron oxides based on clay raw materials of various chemical ...
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8.
Porosity and solubility of bioactive calcium-phosphate glassceramics for bone endoprosthesis
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(Biomaterials)
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The issues related to the solubility of glass-crystalline materials based on calcium phosphate glasses in water and solutions imitating the physiological environment of a living organism are considered. ...
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9.
Synthesis of pigments based on calcium silicate system
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(Science for ceramic production)
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The results of studies on the synthesis of brightly colored lilac and light green pigments in the CaO - SiO 2 system with the addition of chromophore oxides and modifiers are presented. The process of ...
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10.
SYNTHESIS OF CERAMIC PIGMENTS WITH WILLEMITE STRUCTURE AND THEIR USE IN OBTAINING BLUE GLAZES
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(Not-set)
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The ability of isovalent substitution of zinc and cobalt atoms in the structure of willemite Zn2SiO4 was studied, ceramic pigments with willemite structure of blue, violet and blue colors were synthesized. ...
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11.
DEVELOPMENT OF CERAMIC BRICK COMPOSITIONS FOR RESTORATION OF HISTORICAL HERITAGES BASED ON LOESS–DEFECATE COMPOSITION
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(Not-set)
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... the study of physical and chemical processes during firing with the introduction of amorphous silica and calcium-containing waste as a defecate in the brick mass. Technological firing modes have been determined. ...
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12.
PROPERTIES OF POWDERS SYNTHESIZED FROM AQUEOUS SOLUTIONS OF SODIUM SILICATE AND IRON SULFATE
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(Not-set)
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The phase composition of the powder synthesized from aqueous solutions of sodium silicate Na2SiO3 and iron sulfate FeSO4 at the molar ratio Fe/Si = 2 according to X-ray diffraction (XRD) data included ...
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13.
ENVIRONMENTAL ASPECTS OF THE USE OF BATTLE GLASS FOR THE PRODUCTION OF GLASS CONCRETE
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(Not-set)
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... requirements of regulatory documents. The microstructure of glass concrete and the features of its dehydration when heated to 1000 °C investigated. Using X-ray phase analysis, it was found that sodium-calcium ...
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14.
GLAUCONITIC SANDSTONES OF THE CHANGI DEPOSIT ARE A PROMISING RAW MATERIAL FOR OBTAINING GREEN AND BROWN PIGMENT
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(Not-set)
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The results of the research are given: the physicochemical properties of glauconite sandstones of the Changi deposit, the fractional composition, enrichment methods are determined, thermal activation is ...
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15.
STUDY OF THE POSSIBILITY OF OBTAINING THERMAL INSULATING MATERIALS USING ASH WASTE
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(Not-set)
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The possibility of obtaining inorganic block heat-insulating foams based on silica and ash-containing man-made waste is considered. The influence of modifying additives and technological modes on the structure ...
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16.
Crystallisation in Strontiumalumosilicate Systems: Effect of Modifying Additives on Melting Characteristics and Crystallisation Behaviour
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(Not-set)
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The influence of a number of modifying additives: calcium fluoride, zinc oxide and boron oxide, on the melting and crystallization properties of strontium aluminosilicate glasses is considered. The influence ...
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17.
Features of the Synthesis of Magnesium Aluminate Spinel by Sol Gel Method
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(Not-set)
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The results of studies of the chemical and mineralogical characteristics of alumina-containing wastes of the gas processing industry and the possibilities of their use for the synthesis of aluminum-magnesium ...
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18.
The Relationship of Phase and Element Chemical Compositions with the Longevity of the Barcelona Catholic Cathedral of the Holy Cross and St. Eulalia (Spain) More than 600 Years Old
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(Not-set)
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Elemental chemical composition showed an increased mass content of calcium (Ca = 5.9 & # 37;) in the samples, which contributes to the formation of anorthite, which increases the strength of products, ...
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19.
M?ssbauer spectroscopic studies of ferrous oxides, phase com-position and porous structure in ceramic bricks made of coal slate clay and pitch coal slag
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(Science for ceramic production)
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A ceramic brick was obtained on the basis of intershale clay and slag from burning brown coal without using traditional natural raw materials. Studies have shown that the ferrous compounds on the surface ...
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20.
Methods for producing ceramics from metal nitrides (a review)
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(Science for ceramic production)
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The main methods of obtaining metal nitrides are considered. The main advantages and disadvantages are highlighted for each method. The possibilities of using these materials in various industries are ...
