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Preparing Superfine Quartz Sand Powder by Ball Milling Method
Advanced Materials Research, 2014To save land resources by the use of low-grade natural resources to realize a high cost performance product, the technology of prepared superfine quartz sand powder via the ball milling methods were investigated. The results are shown the mean particle size of quartz sand powder is gradually become small varied with prolonging the ball milling time ...
Bo Feng Ma +11 more
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Yield stress of epoxy composites filled with quartz powder
Polymer International, 2002AbstractThe effect of the amount of quartz powder in an epoxy resin matrix was studied by compression testing. Compressive tests near room temperature and at several strain rates were performed on samples with different filler volume fractions. The data show that both the composite Young's modulus and yield stress increase with increasing volume ...
Gerardo H Rubiolo +2 more
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Neutron powder diffraction from samples frozen with quartz wool: hexafluorobenzene
Journal of Applied Crystallography, 1977Freezing of liquid samples in a vanadium can filled with quartz wool is found to be a successful way of preparing samples for neutron powder diffraction. A fairly complicated molecular structure – hexafluorobenzene – was chosen for study and the results of a constrained refinement with the program EDINP show the data to be good. Measurements were taken
E. Baharie, G. S. Pawley
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Powdered quartz tested by single crucible thermal analysis (SCTA)
Thermochimica Acta, 1988Abstract Single crucibles of different radii were constructed in which the temperature difference between the wall and the core of the sample was measured. This is called the “temperature lag” and is a useful parameter with respect to powdered quartz in which the α-β inversion is smeared over a temperature range.
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Production of synthetic quartz powders by electric discharge fragmentation
Transactions of the Kоla Science Centre of RAS. Series: Engineering SciencesThe paper considers the efficiency of destruction of artificial quartz crystals synthesized by hydrothermal method. The data on specific energy consumption for destruction by means of electric pulse and electrohydraulic impacts are given. It is shown that when quartz material fractured to the size of less than 1 mm by electric pulse impact more than 60%
Andrey A. Klimov +2 more
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Construction Technologies and Architecture
In order to maintain long-term environmental quality, sustainable environmental practices are defined as a system that prevents the exhaustion or degradation of natural assets. By pursuing environmental sustainability, we might assure that the necessary criteria for the present the general populace is content without endangering the potential of ...
Saif Ibrahim Hendi +1 more
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In order to maintain long-term environmental quality, sustainable environmental practices are defined as a system that prevents the exhaustion or degradation of natural assets. By pursuing environmental sustainability, we might assure that the necessary criteria for the present the general populace is content without endangering the potential of ...
Saif Ibrahim Hendi +1 more
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Silica powders of respirable size. III. Dialysis of quartz powders against dilute sodium hydroxide
Journal of Biochemical Toxicology, 1963AbstractEarlier studies of the dissolution of quartz powders of respirable size in dilute alkali have been extended to a period of over 2 months at three temperatures, by the use of a dialysis through membrane filters. The results confirm that the ‘easily soluble layer’ on quartz has an average calculated thickness of less than 50 A even on the finest ...
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Hydrogen generation by mechanochemical reaction of quartz powders in water
International Journal of Hydrogen Energy, 2011Abstract The present work focuses on the chemical reaction of water with quartz powders undergoing mechanical activation. The reaction produces gaseous hydrogen and is accompanied by a decrease of the water pH. The observed behavior is related to the chemical reactivity of the active sites generated at the surface of quartz powders by fracture and ...
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ANALYSIS OF QUARTZ NANO-POWDERS LASER SYNTHESIS PROCESS
Vestnik Moskovskogo aviatsionnogo instituta, 2022Pavel A. Vyatlev, Andrei D. Yudin
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