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1.
Mechanochemical Oxidation of Aluminum. The Formation of the Porous Structure of Hydroxides and Oxides of Aluminum
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(At the enterprises and institutes)
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A comparison is made of the main characteristics of aluminum oxides and hydroxides obtained by mechanochemical oxidation of aluminum powder, both in the initial state and after their heat treatment in ...
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2.
Synthesis of Mullite on the Basis of Aluminum- and Silicon Oxygen Products of Sulfuric-Acid Processing of Nepheline
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(Science for ceramic production)
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For the synthesis of mullite 3Al 2 O 3 & middot; 2SiO 2 , hydrated aluminum oxide (GOA) and silicon dioxide SiO 2 obtained by sulfuric acid treatment of nepheline, as well as commercial finely dispersed ...
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3.
Electrosurface behaviour of metal oxides and hydroxides in water solutions
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(At the enterprises and institutes)
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The paper presents the results of determining the points of zero charge pH0 and isoelectric potentials (& # 950; -potential) in aqueous solutions for some oxides and hydroxides used in the production of ...
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4.
The structure of aluminium hydroxide powders by-produced with hydrogen fuel
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(At the enterprises and institutes)
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The structure of aluminum hydroxide powders obtained as a by-product in the production of hydrogen fuel has been investigated. One of the main starting components was aluminum-magnesium shavings with a ...
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5.
Optimization of synthesis conditions of hydroxide and alumina
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(Science for ceramic production)
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The results of obtaining highly dispersed cubic alumina by the method of chemical deposition from solutions of aluminum hydroxides with subsequent dehydration are presented. Il. 2.
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6.
BENTONITE AS THE BASIS OF A GEOPOLYMER BINDER
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(Not-set)
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... analysis showed rather high content of Fe2O3, Na2O, CaO, which corresponded to the ferruginous-aluminum variety of montmorillonite with a predominance of Na+ and Ca2+ ions in the interlayer space. The ...
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7.
CALCIUM ZIRCONATE: METHODS OF SYNTHESIS AND APPLICATIONS OF CERAMIC AND REFRACTORY MATERIALS BASED THEREON – A REVIEW. PART 2. APPLICATIONS OF CERAMIC AND REFRACTORY MATERIALS BASED ON CALCIUM ZIRCONA
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(Not-set)
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The publication presents general information about calcium zirconate and the physical/chemical characteristics of products based thereon. The main fields of application of ceramic and refractory materials ...
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8.
SINTERING OF AMORPHOUS Al(OН)3 USING COLD ISOSTATIC PRESSING
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(Not-set)
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It has been established that the high temperature of decomposition of amorphous Al(OH)3 makes it possible to directly sinter corundum ceramics from aluminum hydroxide, bypassing the stage of its preliminary ...
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9.
Influence of the Conditions of Mechanochemical Activation on the Physical and Chemical Properties of Zinc Oxide
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(Not-set)
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Mechanical activation of zinc oxide with the addition of a surfactant (triethanolamine) in two types of mills - roller-ring vibration and planetary-centrifugal mills is considered. The dependences of the ...
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10.
Synthesis and Properties of Porous Glass Composite Modified by Silicon Carbide
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(Not-set)
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The synthesis and properties of a porous glass composite obtained on the basis of cullet powder at temperatures not exceeding 100 ° C using aluminum powder and liquid glass are considered. It is shown ...
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11.
Foam-Glass Ceramics Synthesis with Application of Mechanized Preparation of the Batch by Extrusion Method
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(Glassceramics)
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The synthesis of an inorganic heat-insulating material - glass-foam ceramics with the use of activating methods for preparing a charge in the form of its extrusion and autoclaving is considered. The interaction ...
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12.
Recent studies in in high-performance alumina ceramics development (review). Part 2. Nanopowders synthesis and sintering, sol-gel technique and other methods of obtaining fine-grain and fiber alumina
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(Science for ceramic production)
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A review of dissertations by Russian scientists on ceramics made of aluminum oxide, methods of its preparation for the period since 2000 is presented. Thin structural ceramics are mainly considered. The ...
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13.
Use of microarc oxidation method for porous functional coatings production
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(Coatings)
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... compounds of the nickel - aluminum system and provides the mechanical strength of the coatings during operation at temperatures above 750 ° C. The possibility of deposition of catalytically active substances ...
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14.
Effect of molding composition and properties on alumina block substrates characteristics
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(Science for ceramic production)
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Ceramic block supports were obtained by extrusion molding, varying the particle size and the conditions for obtaining corundum. The structural and mechanical properties of the molding mixtures were investigated, ...
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15.
Calcium aluminates formation features in mechanochemical inter-action in Са(ОН)2-Аl-H2O system
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(At the enterprises and institutes)
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The features of the processes of mechanochemical interaction in the Ca (OH) 2 -Al-H 2 O system were investigated using the methods of X-ray phase, X-ray structural and synchronous thermal analysis. ...
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16.
The use of ultrasonic processing in early-stage synthesis of LTA zeolite from metakaoline
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(At the enterprises and institutes)
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The effect of ultrasonic treatment (22 kHz) of a suspension of metakaolin, aluminum oxide and sodium hydroxide at a molar ratio Al 2 O 3 2SiO 2 : NaOH: Al 2 O 3 = 6: 12: 2 with subsequent heat ...
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17.
Anion-exchange synthesis of yittrium-aluminium garnet powders
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(At the enterprises and institutes)
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A new method for the synthesis of yttrium-aluminum garnet powder Y3Al5O12 is proposed, which consists in the anion-exchange coprecipitation of yttrium and aluminum from chloride solutions with the Purolite
A-300 ...
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18.
Structure and phase composition of alumina powders obtained by chemical dispergating of aluminium alloys with various magnesium content
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(Science for ceramic production)
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The results of X-ray phase petrographic analysis and scanning electron microscopy of aluminum hydroxide powders obtained by chemical dispersion of aluminum-magnesium alloys (with a mass fraction in Mg ...
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19.
Anion-exchange synthesis of spinel-type cobalt pigments
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(Coatings)
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The synthesis of ultramarine blue pigment is proposed by coprecipitation of cobalt and aluminum from nitrate solutions with anionite AB-17-8 in the OH-form, followed by calcining the precursor at 750 ° ...
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20.
Composite material from the system Al2O3
- SiO2
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(Science for ceramic production)
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By introducing a eutectic additive of the CaO - ZnO - Al 2 O 3
- SiO 2 system and tetragonal zirconia into the alumina synthesized by calcining the hydroxide, dispersion-hardened material with an ...
