نتایج جستجو برای: aqueous sol gel

تعداد نتایج: 191671  

Journal: :Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan) 1993

Journal: :international journal of nano dimension 0
f. oshani department of engineering, islamic azad university, north branch, tehran, iran. s. rasouli department of nanomaterials and nanotechnology, institute for color science and technology. r. marandi department of engineering, islamic azad university, north branch, tehran, iran. m. keramati farhoud department of nanomaterials and nanotechnology, institute for color science and technology.

in this paper, a modified sol-gel method using peroxotitanic acid sol (pta) was applied for the preparation of tio2 nanostructured thin films on glass plates. the peroxotitanic acid sol was synthesized using titanium isopropoxide, isopropylalchol, h2o and hydrogen peroxide. tio2 films were then calcined at 500oc and characterized by x-ray diffraction (xrd) and scanning electron microscopy (sem)...

Journal: :iranian journal of pharmaceutical sciences 0
afrooz latifi faculty of biomedical engineering, islamic azad university, science and research branch, tehran, iran abdollah afshar department of material science and engineering, sharif university of technology, tehran, iran aliasghar behnamghader materials and energy research centre, tehran, iran sedigheh joughehdoust faculty of biomedical engineering, islamic azad university, science and research branch, tehran, iran

the synthesis of titania via sol-gel method has been widely studied. in the present work, titania was deposited onto a titanium substrate via sol-gel method. different processing parameters such as the repetition number of dipping/heat treatment process and dipping time have been studied to obtain the homogenous titania coating. phase and microstructural evaluation of the powder and coating sam...

Journal: :Journal of Non-crystalline Solids 2023

Transparent oxyfluoride glass-ceramic (OxGCs) coatings with composition 1.2Nd3+ 80SiO2- 20LaF3 were prepared following a sol-gel route labelled “pre-crystallized nanoparticles route”. OxGCs are transparent materials composed by one or more fluoride nanocrystals in glass matrix. have been encouraging results powders and bulk glass-ceramics but not coatings. In the present work, aqueous suspensio...

Journal: :international journal of nano dimension 0
m. enhessari department of chemistry, naragh branch, islamic azad university, naragh , iran. s. nazari moqhadam department of chemistry, north tehran branch, islamic azad university, tehran, iran. m. kargar razi department of chemistry, north tehran branch, islamic azad university, tehran, iran s. ghezelbashi department of chemistry, north tehran branch, islamic azad university, tehran, iran. m. habibi tootkani department of chemistry, north tehran branch, islamic azad university, tehran, iran.

cotio3-clay nano-composites were synthesized via a conventional sol-gel method; the gel was calcinated at 500 - 800°c for 2 hours. the presence of rhombohedra phase of cotio3 in clay matrix was confirmed by xrd, ftir, sem. cobalt titanate-clay nano-composites were prepared with 5-20%(w/w) by sol-gel method. the spectra results were investigated at 20% (w/w) concentration .the optimum condition ...

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