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1.
COMPREHENSIVE STUDY OF THE BARKHAN SANDS OF THE KUSHKUPYR DEPOSIT FOR THE PRODUCTION OF SODIUM SILICATE IN THE MICROSILICA–BARKHAN SAND–CAUSTIC SODA SYSTEM
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(Not-set)
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The chemical and mineralogical composition, grain structure and physicochemical properties of unenriched dune sands located in the Kushkupyr district of Uzbekistan were studied. Analysis of the granulometric ...
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2.
EFFECT OF ADDING SILICON-PHOSPHORUS-ANTIMONY CATIONITE TO POTASSIUM NITRATE MELT ON STRENGTHENING SODIUM-CALCIUM-MAGNESIUM SILICATE GLASS BY ION EXCHANGE METHOD
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(Not-set)
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... of sodium-calcium-magnesium silicate glass. Compressive stresses are formed as a result of low-temperature ion exchange Na+ (glass) – K+ (salt melt). Two types of potassium nitrate were studied: technical ...
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3.
STRUCTURAL FEATURES AND PROPERTIES OF SODIUM-RUBIDIUM ALUMINOBOROSILICATE GLASSES WITH THE ZIRCONIUM ADDITION
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(Not-set)
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The structure of matrix materials synthesized quenching sodium-rubidium aluminoborosilicate melts with the zirconium addition was studied using vibrational spectroscopy. The significant influence of zirconium ...
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4.
SYNTHESIS AND SPECTRAL-LUMINESCENT PROPERTIES OF SODIUM-MODIFIED BISMUTH-GERMANATE GLASSES
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(Not-set)
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Bismuth germanate glasses modified with sodium oxide have been synthesized. The influence of a modifier on the spectral-luminescent properties of bismuth germanate glasses has been studied. The ratios ...
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5.
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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6.
CERAMIC MATERIALS OF A GIVEN PHASE COMPOSITION BASED ON HYDROXYAPATITE POWDER TREATED IN SOLUTIONS OF AMMONIUM, SODIUM AND POTASSIUM DIHYDROPHOSPHATES
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(Not-set)
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Powders of hydroxyapatite (HA) Ca10(PO4)6(OH)2 treated in 0.25M aqueous solutions of ammonium NH4H2PO4, sodium NaH2PO4 and potassium KH2PO4 dihydrophosphates for 1 hour under stirring were used for ceramics ...
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7.
FACING BUILDING MATERIAL BASED ON MECHANICALLY ACTIVATED CULLET MODIFIED WITH SODIUM HYDROXIDE
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(Not-set)
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The technology of facing material based on mechanically activated cullet modified with sodium hydroxides has been developed. The phase composition, macro- and microstructure of the lining material are ...
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8.
POLARIZATION CONTROLLED BIREFRINGENCE IN SODIUM ALUMINOBORATE GLASS
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(Not-set)
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The formation of birefringent nanogratings by a femtosecond laser beam in the volume of sodium aluminoborate glasses is demonstrated. The dependences of the optical retardance of the nanogratings on the ...
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9.
Laser Writing of Polarization-Dependent Birefringence
in Sodium Borate Glasses
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(Not-set)
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The conditions for the formation of microregions with polarization-dependent birefringence in sodium-borate glasses with different Na 2 O contents by a femtosecond laser beam are found. The dependences ...
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10.
The Dielectric Method for Controlling the Recipe and Technologi-cal Parameters Upon Receipt of Sodium Silicate Materials
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(Not-set)
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The results of the study of the dielectric constant & # 949; modified sodium silicate compositions (SNK) depending on the content of the modifying zinc-containing aqueous solution (zinc acetate) and the ...
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11.
Interaction of Lead-Silicate Glasses with Sodium Hydroxide Solutions
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(Not-set)
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The influence of temperature and concentration of NaOH solutions on the processes of chemical dissolution of lead-silicate glasses used as base glasses in the manufacture of microchannel plates has been ...
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12.
Thermal Behavior of Mixtures Based on Metacaolin and Sodium Hydroxide
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(Not-set)
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... granulation of the paste, and drying, a hydrated LTA zeolite is formed. It was found that at temperatures up to 700 & # 176; C, sodium aluminosilicate Na 6 Al 4 Si 4 O 17 . After heat treatment ...
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13.
Vibrocompacting of Lead-Free Piezoceramic Powder Material Based on Solid Solutions of Potassium and Sodium Niobates
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(Science for ceramic production)
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The possibility of obtaining samples of lead-free piezoelectric ceramics using vibration molding at a pressing pressure of less than 0.3 MPa is being considered. The experiments were carried out on the ...
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14.
Laser Writing of the Polarization ? Sensitive Birefringent Microdo-mains in Sodium Borosilicate Glass
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(Science for glass production)
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The possibility of the formation of birefringent microregions in sodium borosilicate glass with the composition 68 SiO 2 , 27 B 2 O 3 , 4 Na is demonstrated. 2 O, 1 Al 2 O 3 (molar content, & ...
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15.
Phase composition, structure and hydrolysis resistance of sodium-alumo(ferro)phosphate glasses doped with rare-earth metals oxides
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(Science for glass production)
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The phase composition, structure and distribution of elements and hydrolytic stability of quenched and annealed sodium aluminum phosphate (NAF) and sodium aluminum iron phosphate (NAIP) glass materials ...
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16.
Anomalous thermal expansion in solid-state synthesis of pie-zoceramics based on sodium and potassium niobate solid solu-tions
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(Science for ceramic production)
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... of potassium, sodium and niobium carbonates during the synthesis of complex oxide of potassium and sodium niobate KNN is carried out. It is shown that on the basis of this analysis it is possible to estimate ...
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17.
MW-field influence on structure and properties of silicates with alumo-sodium chloride dopant
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(At the enterprises and institutes)
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... physical and mechanical properties of ceramic material obtained on their basis are considered. The effect of additives (hydrosol of aluminum oxide stabilized with hydrochloric acid and sodium chloride) ...
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18.
Interaction in sodium sulphate - carbon batches of various dispersity
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(Science for glass production)
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We studied mixtures in the Na 2 SO 4 + C + SiO 2 system after heat treatment at different temperatures. A characteristic feature of the interaction at 900 ° C is the flotation of quartz grains with ...
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19.
Metalloceranic solder for high-pressure sodium-vapour lamps
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(At the enterprises and institutes)
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A new composition of cermet solder for high pressure sodium lamps is proposed. This cermet solder is able to ensure the duration of the lamp with an increased specific electrical load up to 12,000 hours, ...
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20.
Study of high-modulus sodium silicate processing from sulphate batch without reducing agents
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(Science for glass production)
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The results of a computational and experimental study of cooking three-module sodium silicate from a sulphate charge without the use of a reducing agent are presented. The above results indicate the great ...