The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform
S. Srikanth - One of the best experts on this subject based on the ideXlab platform.
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Comparative evaluation of corrosion behaviour of type K thin film thermocouple and its bulk counterpart
Corrosion Science, 2011Co-Authors: S K Mukherjee, P K Barhai, S. SrikanthAbstract:Abstract This paper investigates the corrosion behaviour of type K thermoelements and their thin films, and compares the performance of Chromel–alumel thin film thermocouple with its wire counterpart before and after exposure to 5% NaCl medium. Potentiodynamic polarisation tests reveal that Chromel and alumel films are more “noble” than their respective wires. Alumel corrodes faster when coupled with Chromel in films than as wires. Secondary electron micrographs and electrochemical impedance spectroscopy measurements suggest that Chromel shows localised corrosion while alumel undergoes uniform corrosion. Corrosion adversely affects the thermocouple output and introduces an uncertainty in the measurement.
S K Mukherjee - One of the best experts on this subject based on the ideXlab platform.
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Comparative evaluation of corrosion behaviour of type K thin film thermocouple and its bulk counterpart
Corrosion Science, 2011Co-Authors: S K Mukherjee, P K Barhai, S. SrikanthAbstract:Abstract This paper investigates the corrosion behaviour of type K thermoelements and their thin films, and compares the performance of Chromel–alumel thin film thermocouple with its wire counterpart before and after exposure to 5% NaCl medium. Potentiodynamic polarisation tests reveal that Chromel and alumel films are more “noble” than their respective wires. Alumel corrodes faster when coupled with Chromel in films than as wires. Secondary electron micrographs and electrochemical impedance spectroscopy measurements suggest that Chromel shows localised corrosion while alumel undergoes uniform corrosion. Corrosion adversely affects the thermocouple output and introduces an uncertainty in the measurement.
Atsushi Yamamoto - One of the best experts on this subject based on the ideXlab platform.
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Thermoelectric devices using InN and Al1−xInxN thin films prepared by reactive radio-frequency sputtering
Applied Physics Letters, 2004Co-Authors: Shigeo Yamaguchi, Ryohei Izaki, Nakaba Kaiwa, Satoshi Sugimura, Atsushi YamamotoAbstract:We have fabricated thermoelectric devices using InN and Al0.25In0.75N prepared by radio-frequency sputtering. The devices are composed of (a) Al0.25In0.75N–Chromel of 20 pairs on SiO2 glass, (b) InN–Chromel of 20 pairs on SiO2 glass, and (c) InN-Chromel of 20 pairs on polyimide film. The maximum output power and the open output voltage were (a) 1.6×10−6W and 0.21V at the temperature difference ΔT=345K, 263×10−12W and 2.7×10−3V at ΔT=4.8K, (b) 3.9×10−6W and 0.22V at ΔT=332K, 282×10−12W and 2.4×10−3V at ΔT=4.1K, and (c) 0.33×10−6W and 0.089V at ΔT=280K, 63×10−12W and 1.4×10−3V at ΔT=4.5K, respectively.
P K Barhai - One of the best experts on this subject based on the ideXlab platform.
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Comparative evaluation of corrosion behaviour of type K thin film thermocouple and its bulk counterpart
Corrosion Science, 2011Co-Authors: S K Mukherjee, P K Barhai, S. SrikanthAbstract:Abstract This paper investigates the corrosion behaviour of type K thermoelements and their thin films, and compares the performance of Chromel–alumel thin film thermocouple with its wire counterpart before and after exposure to 5% NaCl medium. Potentiodynamic polarisation tests reveal that Chromel and alumel films are more “noble” than their respective wires. Alumel corrodes faster when coupled with Chromel in films than as wires. Secondary electron micrographs and electrochemical impedance spectroscopy measurements suggest that Chromel shows localised corrosion while alumel undergoes uniform corrosion. Corrosion adversely affects the thermocouple output and introduces an uncertainty in the measurement.
Shigeo Yamaguchi - One of the best experts on this subject based on the ideXlab platform.
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Thermoelectric devices using InN and Al1−xInxN thin films prepared by reactive radio-frequency sputtering
Applied Physics Letters, 2004Co-Authors: Shigeo Yamaguchi, Ryohei Izaki, Nakaba Kaiwa, Satoshi Sugimura, Atsushi YamamotoAbstract:We have fabricated thermoelectric devices using InN and Al0.25In0.75N prepared by radio-frequency sputtering. The devices are composed of (a) Al0.25In0.75N–Chromel of 20 pairs on SiO2 glass, (b) InN–Chromel of 20 pairs on SiO2 glass, and (c) InN-Chromel of 20 pairs on polyimide film. The maximum output power and the open output voltage were (a) 1.6×10−6W and 0.21V at the temperature difference ΔT=345K, 263×10−12W and 2.7×10−3V at ΔT=4.8K, (b) 3.9×10−6W and 0.22V at ΔT=332K, 282×10−12W and 2.4×10−3V at ΔT=4.1K, and (c) 0.33×10−6W and 0.089V at ΔT=280K, 63×10−12W and 1.4×10−3V at ΔT=4.5K, respectively.