STUDY OF ANNEALING INFLUENCE ON IRO2 THIN FILMS USING ULTRASONIC TECHNIQUE.
Journal Title: International Journal of Advanced Research (IJAR) - Year 2018, Vol 6, Issue 9
Abstract
Iridium oxide (IrO2) thin films were prepared using sol-gel technique. The prepared films subjected to different annealing temperatures (3000C, 4000C, 5000C, 6000C and 7000C). By using ultrasonic pulse echo technique, ultrasonic attenuation coefficient (α), ultrasonic velocities (longitudinal, CL and shear, CS) and thin film thickness (X) measured. Then elastic moduli (Young?s (E), longitudinal (L), shear (G) and bulk (K)), Poisson?s ratio (v) and micro-hardness (H) were calculated. By optical method, band gap energy (Eg) of the prepared thin films measured. Films? densities (ρ) had known from weights difference. The study showed that the ultrasonic attenuation coefficient, films? densities and Poisson?s ratio increased as the annealing temperature increased while ultrasonic velocities, elastic moduli, thickness, micro-hardness and band gap energy did the contrast. It may be due to molecules mobility and voids variation with respect to annealing temperatures. Therefore, the mechanical properties, band gap energy, density, micro-hardness and thickness of IrO2 thin films were changed.
Authors and Affiliations
Mirham A. Y. Barakat.
Keywords
Related Articles
- EP ID EP400622
- DOI 10.21474/IJAR01/7653
- Views 76
- Downloads 0
A CRITICAL STUDY ON THE EFFECT OF STAFF TRAINING ON EMPLOYEES? WORK ATTITUDE.
Training employees is an important activity for any organization. It instills workforce competence in the organization and boosts employee?s level of effectiveness in carrying out their responsibilities. There is evidenc...
SEASONAL VARIATIONS OF SULFUR DIOXIDE IN THE AIR IN ZENICA CITY DURING 11 YEARS PERIOD 2006 ? 2016.
This study presents the results of eleven years of measurement of a sulfur dioxide campaign, in three places in Zenica City between January 1 2006 and December 31 2016. This Study was performed to analyze the periods of...
LES REVERIES DUN ELDORADO: REFLEXIONS SUR LES MESAVENTURES DAMOIN DANS PAIN SUCRE DE MARY LEE MARTIN-KONE.
Cette communication examine la r?alit? du r?ve d?une villageoise africaine dans une soci?t? domin?e enti?rement par l?homme. Tout le monde est libre d?aspirer d??tre une personnalit? c?l?bre dans la vie. Dans cette commu...
SIMILARITY MEASURE FOR SOCIAL NETWORKS.
Along with the growth in the use of social networks, the measurement of social parameters (e.g., centrality and similarity) becomes more important. Many algorithms have been proposed to measure the graph similarity as a...
EVALUATION OF CORTICOSTEROID UTILIZATION PATTERN IN TERTIARY CARE HOSPITAL, DEHRADUN.
Background: Corticosteroids are widely used as potent anti-inflammatory and immunosuppressive drugs to treat a wide range of diseases. This study evaluates the rational use of corticosteroid amongst hospitalized patients...