The effects of temperature on real time changes in optical density (DeltaOD) of GAFCHROMIC EBT film were investigated. The spectral peak of maximum change in absorbance (lambdamax) was shown to downshift linearly when the temperature of the film was increased from 22 to 38 degrees C. The DeltaOD values were also shown to decrease linearly with temperature, and this decrease could not be attribu...

Air film cooling has been successfully used to cool gas turbine hot sections for the last half century. A promising technology is proposed to enhance air film cooling with water mist injection. Numerical simulations have shown that injecting a small amount of water droplets into the cooling air improves film-cooling performance significantly. However, previous studies were conducted at conditio...

The design and fabrication of an ethanol microsensor integrated with a readout circuit on-a-chip using the complementary metal oxide semiconductor (CMOS)-microelectro -mechanical system (MEMS) technique are investigated. The ethanol sensor is made up of a heater, a sensitive film and interdigitated electrodes. The sensitive film is tin dioxide that is prepared by the sol-gel method. The heater ...

CdTe film was deposited using the electrophoretic deposition technique onto an ITO glass at various bath temperatures. Four batch film compositions were used by mixing 1 to 4 wt% concentration of CdTe powder with 10 mL of a solution of methanol and toluene. X-ray Diffraction analysis showed that the films exhibited polycrystalline nature of zinc-blende structure with the (111) orientation as th...

In this research, tellurium (Te) film with thicknesses of 100-250 nm were deposited on ceramic substrates by thermal evaporation at 373 K. The thickness of the film was determined by Rutherford backscattering spectroscopy. The influence of the thickness on the structural, morphological and molecular bonds was characterized using XRD, scanning electron microscope, and Raman spectroscopy. The XRD...

We have developed a sensor to measure the glass transition temperature (T,) of photoresist during its pre-exposure bake. During prebake, the resist must reach this temperature in order for significant solvent evaporation to occur. To determine T, we measured the change in phase of a high frequency pulse as it was reflected from the interface between an 8” silicon wafer and a photoresist film. T...

A range of gas conditions was generated by packing individual capsicums (green ‘Tasty’ bell peppers, Capsicum annuum L.) in packages with different areas of permeable low-density polyethylene film (0.0006–0.48 m) at four different temperatures (0, 12, 20 and 30°C). Steady-state O2 and CO2 partial pressures in the package were used to calculate rates of O2 uptake and CO2 production. The results ...

Thin, amorphous boron-carbon films were deposited at low temperature (400-600 °C) by thermally activated CVD using the organoborane triethylboron (TEB) as a single precursor. Two different carrier gases were tested. At 600 °C using argon as carrier gas the deposition rate was close to 1 μm/h. The film had a density of 2.14 g/cm with a B/C-ratio of 3.7. When hydrogen was used as carrier gas the ...

The temperature dependent anisotropy of a highly textured epitaxial Pr–Co film with a single orientation of the crystallographic c-axis along MgO 001 is investigated by measuring angle dependent hysteresis loops at various temperatures. The measured magnetization curves are compared with calculated magnetization curves, which allows for a full analysis of the temperature dependent anisotropy co...

A 2 GHz acoustic phase measurement system has been developed and used for in-situ monitoring of thin film thickness and temperature in silicon wafer processing. Initial evaporation experiments in a vacuum station have shown a film thickness resolution of -1OOO A with a potential resolution to -1 A . The potential of this system for making temperature measurements has also been explored, and ini...