Characterization of surface structures of dealkalized soda lime silica glass using X-ray photoelectron, specular reflection infrared, attenuated total reflection infrared and sum frequency generation spectroscopies

2017 ◽  
Vol 474 ◽  
pp. 24-31 ◽  
Author(s):  
Nisha Sheth ◽  
Jiawei Luo ◽  
Joy Banerjee ◽  
Carlo G. Pantano ◽  
Seong H. Kim
Keyword(s):  
Silica Glass ◽  
Specular Reflection ◽  
Soda Lime ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Surface Structures ◽  
X Ray ◽  
Sum Frequency ◽  
Soda Lime Silica Glass

Development of Glass-Ceramics from Soda Lime Silica Glass Waste by Direct Sintering Method for Opal Imitation

2017 ◽  
Vol 751 ◽  
pp. 397-402
Author(s):  
Duangkhae Bootkul ◽  
Sawet Intarasiri
Keyword(s):  
Silica Glass ◽  
Glass Ceramics ◽  
Soda Lime ◽  
X Ray Diffraction ◽  
Glass Waste ◽  
X Ray ◽  
Sintered Glass ◽  
Soda Lime Silica Glass ◽  
Common Opal

Natural opal, an amorphous, hydrous form of silica (SiO2-n-H2O), has been one of the favored precious gemstones for many centuries. Though beautiful, opal is very fragile and is damaged quite easily. Thus, opals of all varieties have been synthesized experimentally and commercially. The objective of this project was to synthesize and to compare crystalline opals. In this work, the development of powder sintered glass ceramics process based on soda lime silica glass waste with metal oxide powder enable jewelry applications. The substantial viscous flow of the glass led to dense products for rapid treatments at relatively low temperatures (900–1,000°C), whereas glass/metal powder interactions resulted in the formation of color agent crystals, provide enhancing optical properties. Several techniques were applied for characterization of the ingots. The chemical analysis was performed by Energy Dispersive X-ray Fluorescence (ED-XRF). The mineralogical compositions of the samples were determined by X-ray diffraction analysis. Raman spectroscopy was applied for optical characterization. The results were compared with a natural common opal. The present investigation demonstrated that the common opal with both color and colorless appearance can be synthesized by the technique, as the crystalline phase of opal structure was identified by XRD measurement. There is a great potential for such materials with novel functionalities for artificial gemstone application, i.e. opal forming.

Characterization of the poly(para-phenylene vinylene)-chromium interface by attenuated total reflection infrared and X-ray emission spectroscopies

1995 ◽  
Vol 75 (3) ◽  
pp. 175-179 ◽  
Author(s):  
T.P. Nguyen ◽  
P. Jonnard ◽  
F. Vergand ◽  
P.F. Staub ◽  
J. Thirion ◽  
...  
Keyword(s):  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Phenylene Vinylene ◽  
X Ray

scholarly journals Microstructures and growth characteristics of polyelectrolytes on silicon using layer-by-layer assembly

2013 ◽  
Vol 11 (2) ◽  
pp. 205-214 ◽  
Author(s):  
Adina Bragaru ◽  
Mihaela Kusko ◽  
Antonio Radoi ◽  
Mihai Danila ◽  
Monica Simion ◽  
...  
Keyword(s):  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Layer By Layer ◽  
Morphological Investigation ◽  
X Ray ◽  
Nanocomposite Layer ◽  
Diallyldimethylammonium Chloride ◽  
Section Size ◽  
Good Agreement

AbstractGrowth processes of nanocomposite layers obtained by polyelectrolytes, poly(sodium 4-styrenesulfonate) (PSS) and poly(diallyldimethylammonium chloride) (PDADMAC), self-assembled on silicon surface using layer-by-layer (LbL) technique were investigated, and theoretical and experimental data are herein reported. Complementary microstructural and compositional analyses techniques (scanning electron microscopy, ellipsometry, X-ray reflectivity, zeta (ξ) potential measurements and attenuated total reflection infrared spectroscopy) were used for deep characterization of the multilayer structure formation. Electrophoretic zeta (ξ) potential measurements indicated that the surface charge was either positive or negative, depending on the polyelectrolyte used (PDADMAC or PSS). ATR-IR spectra confirmed the successfully silanization process and then, the building up of the nanocomposite layer. Morphological investigation and X-ray reflectivity demonstrated the growth process and cross-section size of the bilayers. Ellipsometric measurements were in very good agreement with SEM and XRR, showing once again the successful deposition of polyelectrolyte multilayers.

scholarly journals Synthesis and characterization of four new halloysite–TiO2 nanocomposites.

2013 ◽  
Vol 47 (1) ◽  
pp. 407
Author(s):  
D. Papoulis ◽  
S. Komarneni ◽  
D. Toli ◽  
D. Panagiotaras ◽  
S. Bakalis
Keyword(s):  
Sol Gel ◽  
Particle Morphology ◽  
Anatase Tio2 ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Published Data ◽  
X Ray Diffraction ◽  
X Ray ◽  
Tio2 Particles

The synthesis as well as the characterization of small-sized TiO2 particles supported on Halloysite are presented. Hallloysite from Utah, USA as well as from Limnos, island Greece, were used to synthesize two nanocomposites for each halloysite with TiO2 to halloysite weight ratios of 80: 20 and 60:40 and compare with published data of well formed nanocomposites of intermediate proportion (70-30) that were previously studied. All nanocomposites were prepared by deposition of anatase (TiO2) on the halloysite tubes using a sol–gel method under hydrothermal treatment at 180 °C. Phase composition, particle morphology and physical properties of these samples were characterized using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Attenuated Total Reflection using Fourier Transform Infrared spectroscopy (ATR-FTIR) and N2 surface area analysis by BET. Preparation of all halloysite–TiO2 nanocomposites led to the anticipated good dispersion of anatase particles on halloysite surfaces. ATR-FTIR results revealed the formation of hydrogen bonding between anatase and the outer surfaces of halloysite tubes. All halloysite-TiO2 nanocomposites largely showed interparticle mesopores of about 5.7nm and high SSAs.

Analytical and Microbiological Characterization of Paper Samples Exhibiting Foxing Stains

2015 ◽  
Vol 21 (1) ◽  
pp. 63-77 ◽  
Author(s):  
Margarida Nunes ◽  
Cátia Relvas ◽  
Francisca Figueira ◽  
Joana Campelo ◽  
António Candeias ◽  
...  
Keyword(s):  
Analytical Approach ◽  
Morphological Characterization ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Energy Dispersive ◽  
X Ray ◽  
Ft Ir ◽  
Sizing Agents ◽  
Mineral Fillers

AbstractThis work comprises the use of a multi-analytical approach combined with microbiological studies to characterize six paper samples, containing foxing stains, from the 20th century, regarding their cellulose matrix, fillers, and sizing materials, and to evaluate possible paper degradation that might have occurred during the foxing stains. Photography under different illuminations and optical microscopy were used for morphological characterization of the paper samples and foxing stains. Scanning electron microscopy coupled energy dispersive spectroscopy (SEM-EDS) was of particular importance for defining the presence of fiber disorder and disruption on the surface of some of the stains, and localized accumulations of mineral-like particles on the surface of others. SEM-EDS, attenuated total reflection Fourier transform infrared spectroscopy (ATR-FT-IR), and energy dispersive X-ray fluorescence (EDXRF) were used for the identification of mineral fillers, whereas sizing agents were analyzed using ATR-FT-IR. EDXRF results showed that no differences, within the standard deviation, were found in iron and copper contents between the foxed and unfoxed areas. Fungi belonging to the genus Penicillium spp. were found in all the paper samples. Unfoxed areas presented lower contamination than the foxed areas.

An experimental study and WinXCom calculations on X-ray photon characteristics of Bi2O3- and Sb2O3-added waste soda-lime-silica glass

2020 ◽  
Vol 46 (13) ◽  
pp. 21120-21127 ◽  
Author(s):  
Recep Kurtulus ◽  
Taner Kavas ◽  
Iskender Akkurt ◽  
Kadir Gunoglu
Keyword(s):  
Experimental Study ◽  
Silica Glass ◽  
Soda Lime ◽  
X Ray ◽  
Soda Lime Silica Glass
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