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Mineralogical and chemical characteristics of a powder and purified quartz from Yunnan Province

open access: yesOpen Geosciences, 2016
For comprehensive utilization of powder quartz, a detailed mineralogical analysis is needed. In this paper, the minerals collected from a powder quartz deposit in Yunnan Province and its purification products were characterized by X-ray diffraction (XRD),
Zuo Ran-Fang   +4 more
doaj   +3 more sources

Fumed Silica-Based Ultra-High-Purity Synthetic Quartz Powder via Sol–Gel Process for Advanced Semiconductor Process beyond Design Rule of 3 nm [PDF]

open access: yesNanomaterials, 2023
Fumed silica-based ultra-high-purity synthetic quartz powder was developed via the sol–gel process to apply to quartz wares and quartz crucibles for use in advanced semiconductor processes. The process conditions of preparing potassium silicate solution,
Ji-Ho Choi   +3 more
doaj   +2 more sources

Influence of quartz powder and silica fume on the performance of Portland cement. [PDF]

open access: yesSci Rep, 2020
AbstractSupplementary cementitious materials interact chemically and physically with cement, influencing the formation of hydrate compounds. Many authors have analyzed the filler and pozzolanic effect. However, few studies have explored the influence of these effects on hydration, properties in the fresh and hardened states, and durability parameters ...
Tavares LRC   +5 more
europepmc   +5 more sources

Electrophoretic Deposited Quartz Powder-Assisted Growth of Multicrystalline Silicon

open access: yesCrystals, 2022
Ingot multicrystalline silicon (Mc-Si) needs to be improved in quality and reduced in cost compared with Czochralski monocrystalline silicon. A uniform and dense quartz nucleation layer was obtained by the electrophoretic deposition of quartz powder on ...
Xiang Quan   +3 more
doaj   +2 more sources

Understanding the Role of Quartz Powder Content and Fineness on the Micro-Structure and Mechanical Performance of UHPC

open access: yesBuildings
To enhance the microstructure and mechanical properties and to optimize the formulations of high-strength and high-flow ultra-high-performance concrete (UHPC), the effects of different quartz powder contents, fineness, and curing temperatures of UHPC ...
Jianguang Xu   +9 more
doaj   +3 more sources

The Influence of Quartz Powder on the Mechanical–Thermal–Chemical–Durability Properties of Cement-Based Materials

open access: yesApplied Sciences
Using industrial by-products to replace cement is an important way to reduce carbon emissions in the cement industry. The purpose of this article is to understand the effect of quartz powder on the properties of cement-based materials.
Gui-Yu Zhang   +5 more
doaj   +3 more sources

Study on physico-mechanical properties and damage constitutive model of sandstone-like materials [PDF]

open access: yesScientific Reports
Scientific and rational selection of rock-like materials plays a critically important role in geotechnical model tests. This study conducted physical and mechanical property tests on three types of sandstone, analyzing their microstructural ...
Shuai Zhang   +5 more
doaj   +2 more sources

Investigation of the influences of pulsed electrical discharges on the grinding of quartz raw materials [PDF]

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2023
The article considers a method for obtaining raw materials — quartz powder, used to increase the resistance of building materials to adverse natural facts (wind, rain, etc.).
A.K. Khassenov   +6 more
doaj   +3 more sources

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