Results 61 to 70 of about 497,744 (196)
The effect of fluorine on viscosities in the system Na2O-Al2O3-SiO2: implications for phonolites, trachytes and rhyolites [PDF]
, 1985 The effect of fluorine on melt viscosities of five compositions in the system Na2O-Al2O3- SiO2h as been investigateda t one atmospherea nd 1000-1600'Cb y concentric-cylinder viscometry.
Cronin, David J. +2 more
core +1 more source
Mechanism and structure analysis of SiO2-coated CaCO3 superfine particles(SiO2包覆超细CaCO3的结构和机理分析)
Zhejiang Daxue xuebao. Lixue ban, 2002 合成了表面包覆SiO2的超细CaCO3。通过XPS,RD对包覆表面层结构的分析,证实了SiO2以无定形包覆于CaCO3表面,并在其表面形成了Si-O-Ca键。对SiO2包覆超细CaCO3的机理分析结果可知:Na2SiO3的加入量是影响包覆效率的重要因素,由于硅酸易自聚,控制SiO2与CaCO3的重量比约为4%～5%时为包覆的最佳点;CaCO3晶粒度大小影响分散性能,进而影响包覆效率,分散性能好的包覆效率较高。
YUELin-hai(岳林海) +2 more
doaj +1 more source
Applied Rheology, 2015 Suspensions of SiO2 microspheres in glycerine exhibit drastic shear-thickening behavior under steady shear and dynamic oscillatory shear test. The rheological behavior of suspensions agrees with the modified Cox-Merz rules as the dynamic oscillatory ...
Chen Yi +3 more
doaj +1 more source
Effect of the Si/SiO2 Interface on Diffusion in SiO2
Hyomen Kagaku, 2005 Using 30Si-implanted 28SiO2 and natSiO2/28SiO2 structures, Si self-diffusion in SiO2 was studied as a function of temperature and SiO2 thickness (200−650 nm). Si self-diffusivity increased by about one order of magnitude with decreasing SiO2 thickness from 650 to 200 nm with a SiN layer, i.e., the shorter the distance between the 30Si diffusers and the
Shigeto FUKATSU +6 more
openaire +2 more sources
Vitreous GeO2 response to shock loading [PDF]
, 2000 Shock wave profiles in vitreous GeO2 (6.56 Mg/m^3) under planar loading were measured using stress gauges to 14 GPa. New and previous data yield Hugoniot: D=0.974 (km/s)+1.711 u for shocks of 6 to 40 GPa.
Ahrens, Thomas J., Brar, N. S., Liu, C.
core
Visible luminescence from hydrogenated amorphous silicon modified by femtosecond laser radiation
, 2012 Visible luminescence is observed from the composite of SiO2 with embedded silicon nanocrystallites produced by femtosecond laser irradiation of hydrogenated amorphous silicon (a-Si:H) film in air.
Beresna, Martynas +7 more
core +2 more sources
Etched graphene quantum dots on hexagonal boron nitride [PDF]
, 2013 We report on the fabrication and characterization of etched graphene quantum dots (QDs) on hexagonal boron nitride (hBN) and SiO2 with different island diameters. We perform a statistical analysis of Coulomb peak spacings over a wide energy range.
Engels, S. +8 more
core +2 more sources
Ion mixing of markers in SiO2 and Si [PDF]
, 1984 The amount of atomic mixing in amorphous SiO2 and Si is studied by measuring the redistribution of thin metal markers due to irradiation with 300-keV Xe+ ions.
Barcz, A. J. +2 more
core +1 more source
International Journal of Nanomedicine, 2020 Mehdi Abedi,1 Samira Sadat Abolmaali,1,2 Mozhgan Abedanzadeh,1 Fatemeh Farjadian,2 Soliman Mohammadi Samani,2,3 Ali Mohammad Tamaddon1,2 1Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Fars,
Abedi M +5 more
doaj
Cathodoluminescence Properties of SiO2: Ce3+,Tb3+, SiO2:Ce3+, Pr3+ and SiO2: PbS
, 2012 Silicon dioxide (SiO2), also known as silica, is an oxide of silicon (Si) that is found in nature in two different forms, namely amorphous and crystalline. Traditionally, amorphous SiO2 is used in many applications such as semiconductor circuits, microelectronics and optical fibers for telecommunication.
Odireleng M. +5 more
openaire +2 more sources