Results 61 to 70 of about 507,192 (288)
Thermal Expansion of Fused Quartz Powder Compacts
Journal of the Ceramic Society of Japan, 1997 The fused quartz is one of the most typical materials of low thermal expansion. However, it was found that compacts prepared by isostatic compression of ground powder of fused quartz showed an anomalously high thermal expansion of 7×10-6/°C, i.e., about 10 times of that of the normal fused quartz. The density of the glass powder increased with grinding
HAMANO, Kenya +3 more
openaire +2 more sources
Advanced Materials, EarlyView.A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal +7 more
wiley +1 more source
Applied SciencesLow-carbon design has become increasingly important in the cement and concrete industry. Previous studies have primarily focused on the impact of different types of admixtures on the carbon emissions of concrete while overlooking the influence of the ...
Bo Yang, Xiao-Yong Wang
doaj +1 more source
In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts
Advanced Materials, EarlyView.An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea +9 more
wiley +1 more source
Discover MaterialsThis study investigates the use of ground granulated blast-furnace slag (GGBS) and quartz powder as partial cement substitutes to lessen the carbon footprint associated with concrete production.
B. Narendra Kumar +2 more
doaj +1 more source
Studia Universitatis Babes-Bolyai ChemiaThe objective of this study is to evaluate the pozzolanic activity of metakaolin, glass powder and silica powder for use in cementitious mortars. Thus, metakaolin was produced by calcination at 700 °C of a clay soil from Burkina composed of kaolinite ...
Issiaka SANOU +4 more
doaj +1 more source
Advanced Materials, EarlyView.Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz +11 more
wiley +1 more source
NanomaterialsHigh-purity synthetic quartz powders are widely used for quartz crucibles and quartzware in semiconductor processes. However, sol–gel-derived synthetic quartz powders contain hydrogen bonds on pore interiors and surfaces, inducing bubble formation during
Woo-Guk Lee +7 more
doaj +1 more source
Mechanical activation in the production of lime-sand mixtures
Magazine of Civil Engineering, 2020 This paper presents a review of the author’s research of the effect of different grinding units’ on the physical and chemical profile and geometry of quartz powders.
Ruslan Ibragimov +2 more
doaj +1 more source
Compression of tetrahedrally bonded SiO2 liquid and silicate liquid‐crystal density inversion [PDF]
, 1989 We have investigated the response to pressure of liquid SiO2 by performing a quantitatively realistic Monte Carlo simulation. The model liquid was restricted to at most four‐fold Si‐O coordination by the effective imposition of an infinite potential ...
Bukowinski, MST, Stixrude, L
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