scholarly journals Anomalous effect of the aging degree on the ionic permeability of silica shells

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38499-38505 ◽  
Author(s):  
Shenghua Wang ◽  
Chaoran Li ◽  
Zhijie Chen ◽  
Zhijie Zhu ◽  
Qishan Zhu ◽  
...  
Keyword(s):  
Colloidal Silica ◽  
Anomalous Effect ◽  
Ionic Permeability

We discovered an anomalous effect of the aging degree on the ionic permeability of colloidal silica.

UV Curable Organic-Inorganic Hybrid Materials

2000 ◽  
Vol 628 ◽  
Author(s):  
Guang-Way Jang ◽  
Ren-Jye Wu ◽  
Yuung-Ching Sheen ◽  
Ya-Hui Lin ◽  
Chi-Jung Chang
Keyword(s):  
Hybrid Materials ◽  
Colloidal Silica ◽  
Sol Gel ◽  
Solution Ph ◽  
Uv Curable ◽  
Inorganic Hybrid ◽  
Degradation Temperature ◽  
Sol Gel Process ◽  
The Stability ◽  
Thermal Degradation Temperature

This work successfully prepared an UV curable organic-inorganic hybrid material consisting of organic modified colloidal silica. Applications of UV curable organic-inorganic hybrid materials include abrasion resistant coatings, photo-patternable thin films and waveguides. Colloidal silica containing reactive functional groups were also prepared by reacting organic silane and tetraethyl orthosilicate (TEOS) using sol-gel process. In addition, the efficiency of grafting organic moiety onto silica nanoparticles was investigated by applying TGA and FTIR techniques. Experimental results indicated a strong interdependence between surface modification efficiency and solution pH. Acrylate-SiO2 hybrid formation could result in a shifting of thermal degradation temperature of organic component from about 200°C to near 400°C. In addition, the stability of organic modified colloidal silica in UV curable formula and the physical properties of resulting coatings were discussed. Furthermore, the morphology of organic modified colloidal silica was investigated by performing TEM and SEM studies‥

Development of Cationic Colloidal Silica Treated with Amino-functional Silane for Ink Jet Paper

2006 ◽  
Vol 60 (4) ◽  
pp. 537-544 ◽  
Author(s):  
Mitsuru Ishii ◽  
Toshio Kakui ◽  
Masao Ishiguro ◽  
Sayaka Sato
Keyword(s):  
Colloidal Silica ◽  
Ink Jet

Anomalous Effect of Lattice Misfit on the Coarsening Behavior of Multicomponent L12 Phase

2020 ◽  
Author(s):  
Feng He ◽  
Kaiwei Zhang ◽  
Guma Yeli ◽  
Yang Tong ◽  
Daixiu Wei ◽  
...  
Keyword(s):  
Lattice Misfit ◽  
Anomalous Effect ◽  
Coarsening Behavior

Adsorption of organics on thermally treated solids obtained from colloidal silica

1987 ◽  
Vol 52 (3) ◽  
pp. 572-581 ◽  
Author(s):  
Miroslav M. Kopečni ◽  
Slobodan K. Milonjic ◽  
Wladyslaw Rudzinski ◽  
Jacek Jagiello
Keyword(s):  
Gas Chromatography ◽  
Thermodynamic Parameters ◽  
Adsorption Isotherms ◽  
Colloidal Silica ◽  
Adsorption Properties ◽  
Thermal Pretreatment ◽  
Lateral Interactions ◽  
Adsorbed Molecules ◽  
Temperature Range ◽  
Thermally Treated

Adsorption isotherms of three adsorbates on the solid beads obtained from colloidal silica were determined by means of gas chromatography at low surface coverages, when lateral interactions between the adsorbed molecules are negligible. The influence of thermal pretreatment on the adsorption properties of the solids was investigated in the temperature range from 343 to 423 K, while the solids were heated between 523 K and 1 223 K. The thermodynamic parameters of adsorption have been determined and used to discuss the adsorbate-adsorbent interactions.

Alumina‐based filters made via binder jet 3D printing of alumina powder, colloidal silica infiltration, and sintering

2021 ◽  
Author(s):  
Corson L. Cramer ◽  
Beth Armstrong ◽  
Artem A. Trofimov ◽  
Peter Wang ◽  
Derek Siddel ◽  
...  
Keyword(s):  
3D Printing ◽  
Colloidal Silica ◽  
Alumina Powder

Preparation of body armour material of Kevlar fabric treated with colloidal silica nanocomposite

2008 ◽  
Vol 37 (5-6) ◽  
pp. 223-226 ◽  
Author(s):  
X. Li ◽  
H. L. Cao ◽  
S. Gao ◽  
F. Y. Pan ◽  
L. Q. Weng ◽  
...  
Keyword(s):  
Colloidal Silica ◽  
Body Armour ◽  
Silica Nanocomposite

scholarly journals Cooper Pair-Like Systems at High Temperature and their Role on Fluctuations Near the Critical Temperature

1998 ◽  
Vol 12 (29n31) ◽  
pp. 3216-3219 ◽  
Author(s):  
M. Ausloos ◽  
S. Dorbolo
Keyword(s):  
Phase Transition ◽  
Electrical Resistivity ◽  
High Temperature ◽  
Critical Temperature ◽  
Oxygen Diffusion ◽  
Cooper Pair ◽  
Anomalous Behavior ◽  
Anomalous Effect ◽  
Linear Temperature ◽  
Ybco Sample

A logarithmic behavior is hidden in the linear temperature regime of the electrical resistivity R(T) of some YBCO sample below 2T c where "pairs" break apart, fluctuations occur and "a gap is opening". An anomalous effect also occurs near 200 K in the normal state Hall coefficient. In a simulation of oxygen diffusion in planar 123 YBCO, an anomalous behavior is found in the oxygen-vacancy motion near such a temperature. We claim that the behavior of the specific heat above and near the critical temperature should be reexamined in order to show the influence and implications of fluctuations and dimensionality on the nature of the phase transition and on the true onset temperature.

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