In the present work, the temperature versus thermal deformation (strain) with respect to time, of different coating films were studied by a non-destructive technique (NDT) known as shearography. An organic coating, i.e., white Neil polish, on a metallic alloy, i.e., a carbon steel, was investigated at a temperature range simulating the severe weather temperatures in Kuwait especially between th...

Thermal noise of a mirror is one of the most important issues in high-precision measurements such as gravitational-wave detection or cold damping experiments. It has been pointed out that thermal noise of a mirror with multilayer coatings can be reduced by mechanical separation of the layers. In this Letter, we introduce a way to further reduce thermal noise by locking the mechanically separate...

Wear of the surface is the major problem of all materials. This wear can be of many types and there can be several methods of reducing wear. Coating on the surface of material is one of them. On M.S substrate, thermal spray coating is done using Detonation spray gun and coating powders used is a mixture of oxides (Al2O3-13TiO2). The thermal-sprayed coatings are characterized by SEM, EDS analyse...

ABSTRACT The use of a thermoelectric generator (TEG) in generating useful power from solar thermal energy is demonstrated. This device represents a portable and autonomous power generation system operating from solar power, capable of powering micro/nano systems. The TEG was integrated with a micro solar thermal collector plate to enhance the thermal radiation absorption capacity of the hot sid...

Thermodynamical (TD) fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body [1] but also through thermal expansion in mirror coating. We analyze the last " surface " effect which can be larger than the first " volume " one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular...

Impressive gains have been made in thermal spray coatings through material development and coating parameter selection. Nevertheless, it is usually up to shop personnel to develop a robot program to achieve the final coating. Coating programs are often developed using trial and error. Some motion and deposit analysis programs are available [1], [2]. However, they can be costly and require a lev...

Thermodynamical (TD) fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body [1] but also through thermal expansion in mirror coating. We analyze the last " surface " effect which can be larger than the first " volume " one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular...

Thermodynamical (TD) fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body [1] but also through thermal expansion in mirror coating. We analyze the last " surface " effect which can be larger than the first " volume " one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular...

Thermodynamical (TD) fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body [1] but also through thermal expansion in mirror coating. We analyze the last " surface " effect which can be larger than the first " volume " one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular...

Thermodynamical (TD) fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body [1] but also through thermal expansion in mirror coating. We analyze the last " surface " effect which can be larger than the first " volume " one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular...