Results 41 to 50 of about 1,129,458 (281)
FORMULATION OF SELF-COMPACTING CONCRETE USING RAW MATERIALS OF THE NORTH CAUCASUS
Вестник Дагестанского государственного технического университета: Технические науки, 2016 Aim. The paper considers the issues associated with the development of formulations of self-compacting concrete.Methods. The basis of the preparation of such concrete is necessary to use effective modern modifiers that improve the rheological properties ...
S.-A. Y. Murtazaev +2 more
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Reaction of quartz glass in lithium-containing alkaline solutions with or without Ca [PDF]
Royal Society Open Science, 2018 The exact role of lithium ions (Li+) in controlling alkali–silica reaction is still unclear. Thus, the effects of Li+ on the reaction between reactive silica (quartz glass) and hydroxyl in alkaline solution with or without Ca were investigated by quartz ...
Baofu Zhou, Zhongyang Mao, Min Deng
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Dissolution rate of powdered quartz in acid solution
GEOCHEMICAL JOURNAL, 1974 The study reported in this paper concerns the role of salts in dissolution of powdered quartz. Kinetic dissolution experiment was carried out in acid media at 60 and 90°C to know the mechanism of acid alteration of rocks. The dissolution rate of silicon was accelerated by addition of such salts as sodium chloride and sodium sulfate in solution above ...
Kamiya, Hiroshi +2 more
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Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications
Advanced Functional Materials, EarlyView.Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi +3 more
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Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene
Advanced Functional Materials, EarlyView.Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus +8 more
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Case Studies in Construction MaterialsThis study aimed to prepare poorly ordered calcium silicate hydrate (C-S-H) via the hydrothermal synthesis method, using ground quartz sand powder and lime as starting materials. The fineness of quartz sand powder under different grinding time and varied
Guangxiang Ji +5 more
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Fabrication and microstructure of quartz ceramics with orderly–arranged carbon filler
Heliyon, 2018 Ceramics with tailored pore structure are showing potential applications in some special fields. For fabricating quartz ceramics with orderly–arranged carbon filler, a combination of 3D printing, vacuum suction filtration and sintering was explored to ...
Xiangming Li +6 more
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Effect of quartz powder and mineral admixtures on the properties of high-performance concrete
Vestnik MGSU, 2019 Introduction. This study focuses on the use of silica fume partially replacing cement with 0, 5, 7.5, 10, 12.5 and 30 % constant replacement of fly ash by weight of cement in concrete.
D. Nguyen, O. Aleksandrova, Y. Bazhenov
semanticscholar +1 more source
Near‐Infrared Light‐Driven Zn/Au Janus Micromotors for Multiplex SERS Detection of Anticancer Drugs
Advanced Functional Materials, EarlyView.Zn/Au Janus micromotors, propelled by thermophoretic effects under NIR light, function as active SERS platforms for single and multiplex detection of anticancer drugs. Their dynamic motion enhances analyte exchange at the Au interface, reducing saturation and competitive adsorption, thereby improving sensitivity and extending the linear detection range.
Tijana Maric +8 more
wiley +1 more source
Preparation of nanocrystalline quartz via high energy ball milling
مجلة جامعة الزيتونة, 2021 The preparation of Nanocrystalline powder via high energy ball milling is drawing a considerable attention at the present time for its simplicity and relatively low cost.
Jihan Eldaour
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