Mechanical properties of UV-photopolymerizable hybrid sol–gel films investigated by AFM in Pulsed Force Mode

2005 ◽  
Vol 33 (2-4) ◽  
pp. 233-242 ◽  
Author(s):  
O. Soppera ◽  
M. Feuillade ◽  
C. Croutxé-Barghorn ◽  
C. Carré
Keyword(s):  
Mechanical Properties ◽  
Sol Gel ◽  
Force Mode ◽  
Sol Gel Films

Investigation of The Elastic Modulus of Sol-Gel Derived Titania Using Three-Point Bending Tests

1996 ◽  
Vol 436 ◽  
Author(s):  
Å. K. Jämting ◽  
J. M. Bell ◽  
M. V. Swain
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Sol Gel ◽  
Bending Tests ◽  
Three Point Bending ◽  
Compositional Uniformity ◽  
Titania Films ◽  
Sol Gel Films ◽  
Film Porosity ◽  
Thickness Measurements

AbstractThere is increasing interest in the use of sol-gel derived films in tribological applications, and this necessitates an understanding of the mechanical properties of these films. Few investigations into the mechanical properties of sol-gel films have been undertaken, and in this study we have concentrated on measurement of the elastic modulus of sol-gel derived titania films as a preliminary stage in a full investigation of stress in sol-gel deposited thin films. Sol-gel films are often very thin and in order to understand the influence of the substrate on the measured elastic modulus, we have used a multiple coating technique to deposit titania films of increasing thickness on various substrates. A three point bending apparatus is used to measure the elastic modulus. The three-point bending apparatus has very low load and displacement measuring capabilities as is required for the very thin sol-gel films. Measurements of the compositional uniformity of the films have been performed using RBS, and this has been combined with film thickness measurements to determine the film porosity. This information ensures that the measured properties relate to intrinsic film properties. The results of all these measurements will be presented.

scholarly journals Optical, electrical and mechanical properties of TiN thin film obtained from a TiO2 sol-gel coating and rapid thermal nitridation

2021 ◽  
pp. 127089
Author(s):  
Arnaud Valour ◽  
Maria Alejandra Usuga Higuita ◽  
Gaylord Guillonneau ◽  
Nicolas Crespo-Monteiro ◽  
Damien Jamon ◽  
...  
Keyword(s):  
Thin Film ◽  
Mechanical Properties ◽  
Sol Gel ◽  
Tio2 Sol ◽  
Thermal Nitridation

Sol-gel synthesis of textured lanthanum titanate thin films

2003 ◽  
Vol 18 (2) ◽  
pp. 357-362 ◽  
Author(s):  
Mary M. Sandstrom ◽  
Paul Fuierer
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Precursor Solution ◽  
Solution Concentration ◽  
Optical Measurements ◽  
Layered Perovskite ◽  
Orientation Factor ◽  
Anisotropic Structures ◽  
Sol Gel Films ◽  
Sol Gel Synthesis

Control over crystallographic orientation in thin films is important, particularly with highly anisotropic structures. Because of its ferroelectric nature, the layered perovskite La2Ti2O7 has interesting piezoelectric and electrooptic properties that may be exploited when films are highly textured. Sol-gel films with an orientation factor of greater than 95% were fabricated without relying on epitaxial (lattice-matching) growth from the substrate. Film orientation and crystallization were confirmed by x-ray diffraction, scanning electron microscopy, atomic force microscopy, and optical measurements. The particle sizes in all precursor solutions were measured by dynamic light scattering experiments. Experimental results indicate that film orientation is a function of precursor solution concentration, size of the molecular clusters in the solution, and film thickness.

Influence of radical photoinitiator content on UV curing process and UV-cured hybrid sol–gel films

2019 ◽  
Vol 17 (2) ◽  
pp. 333-343 ◽  
Author(s):  
Anaïs Even ◽  
Guillaume Vignaud ◽  
Nadia Guitter ◽  
Nathalie Le Bozec ◽  
Philippe Tingaut ◽  
...  
Keyword(s):  
Sol Gel ◽  
Uv Curing ◽  
Curing Process ◽  
Sol Gel Films ◽  
Uv Curing Process

Structural and mechanical properties of lanthanide doped La1/3Nb0.8Ta0.2O3 thin films prepared by sol–gel method

2017 ◽  
Vol 26 (4) ◽  
pp. 045009 ◽  
Author(s):  
Helena Brunckova ◽  
Lubomir Medvecky ◽  
Alexandra Kovalcikova ◽  
Martin Fides ◽  
Erika Mudra ◽  
...  
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method
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