SiO2 thin films were prepared by the solgel method. the properties of the films such as film thickness, etching rate in hydrofluoric acid, Vicker's hardness, and the effect of the thermal treatment on the molecular structure were investigated. As a result, it was found that the etching ...
The Lewis structure of SiO2 is identical to the Lewis structure of CO2. The only difference is that instead of carbon, silicon is used. One silicon atom is at the middle, with two oxygen atoms bound to it in a double bond. There are no lone pairs on the central atom of the SiO2 Lew...
The Si core with Al shell structure of Al/Si coprecipitates shielded the negative charges from SiO2 and thereby resulted in a higher adsorption capacity of selenite than Fe/Si coprecipitates. (SCilMicaP)(SpirOo2c)eshsaosfbseeemnicwoinddeulyctfoorumndaninuftahcetuerfifnluge, nant ddiistcshhao...
Structure and dissolution of CaO–ZrO2–TiO2–Al2O3–B2O3–SiO2 glass (II) The purpose of this study is to determine the structure and dissolution resistance of the CaO–ZrO 2 –TiO 2 –Al 2 O 3 –B 2 O 3 –SiO 2 glass fabricated... HF Wu,CC Lin,P Shen - Journal of Non-Crys...
The rich ROA spectra of biomolecules in aqueous solution provide detailed structural information including, in the case of proteins, the tertiary fold in addition to secondary structure elements. The many structure-sensitive bands in protein ROA spectra makes them ideal for the application of ...
A structure-based model recently developed for the fully liquid system SiO2-Al2O3-CaO-MgO-Na2O-K2O-FeO-Fe2O3 in the Newtonian range is presented in this pa... Hack, K.Wu, G.Yazhenskikh, E.Jantzen, T.Mueller, M. - 《Calphad Computer Coupling of Phase Diagrams & Thermochemistry》 被...
The molecular structure of methyl borate has been investigated by electron diffraction from the vapour. The data were found to be consistent with a B(OC)3 skeleton of C3h, symmetry. The principal molecular parameters are: ra (B-O) = 1.367(4) , ra (O-C) = 1.424(5) , ∠BOC = 121.4...
Molecular Dynamics Studies of Polymorphism of SiO2 at High Pressures: A Possible New Cubic Polymorph with High Densitydoi:10.1007/978-1-4612-3862-1_7Considerable attention has been paid in recent years to the possible polymorphs of silica denser than that with the rutile structure (stishovite). ...
Crystal structure and thermal expansion of α‐SiO2 at low temperatures The crystal structure of α‐SiO2(low quartz) has been refined at 296, 78, and 13 K from time‐of‐flight neutron powder diffraction data. The major effect... GA Lager,JD Jorgensen,FJ Rotella - 《Journal of Applied Ph...
(b) A snapshot of water droplet on phosphorene (ε = 0; pristine) at the end of the MD simulation. (c) The water contact angle θas a function of the transverse and longitudinal strain. biomedicine and nanofluidics. However, the structure and dynamics of water on phosphorene,...