The Experts below are selected from a list of 230214 Experts worldwide ranked by ideXlab platform
Shao Ping Zhou - One of the best experts on this subject based on the ideXlab platform.
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an improved metal packaged strain sensor based on a regenerated fiber bragg grating in hydrogen loaded boron germanium co doped photosensitive fiber for High Temperature Applications
Sensors, 2017Co-Authors: Shao Ping ZhouAbstract:Local strain measurements are considered as an effective method for structural health monitoring of High-Temperature components, which require accurate, reliable and durable sensors. To develop strain sensors that can be used in Higher Temperature environments, an improved metal-packaged strain sensor based on a regenerated fiber Bragg grating (RFBG) fabricated in hydrogen (H2)-loaded boron–germanium (B–Ge) co-doped photosensitive fiber is developed using the process of combining magnetron sputtering and electroplating, addressing the limitation of mechanical strength degradation of silica optical fibers after annealing at a High Temperature for regeneration. The regeneration characteristics of the RFBGs and the strain characteristics of the sensor are evaluated. Numerical simulation of the sensor is conducted using a three-dimensional finite element model. Anomalous decay behavior of two regeneration regimes is observed for the FBGs written in H2-loaded B–Ge co-doped fiber. The strain sensor exhibits good linearity, stability and repeatability when exposed to constant High Temperatures of up to 540 °C. A satisfactory agreement is obtained between the experimental and numerical results in strain sensitivity. The results demonstrate that the improved metal-packaged strain sensors based on RFBGs in H2-loaded B–Ge co-doped fiber provide great potential for High-Temperature Applications by addressing the issues of mechanical integrity and packaging.
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An improved metal-packaged strain sensor based on a regenerated fiber bragg grating in hydrogen-loaded boron–germanium co-doped photosensitive fiber for High-Temperature Applications
Sensors (Switzerland), 2017Co-Authors: Yun Tu, Shao Ping Zhou, Lin Ye, Shan-tung TuAbstract:Local strain measurements are considered as an effective method for structural health monitoring of High-Temperature components, which require accurate, reliable and durable sensors. To develop strain sensors that can be used in Higher Temperature environments, an improved metal-packaged strain sensor based on a regenerated fiber Bragg grating (RFBG) fabricated in hydrogen (H2)-loaded boron–germanium (B–Ge) co-doped photosensitive fiber is developed using the process of combining magnetron sputtering and electroplating, addressing the limitation of mechanical strength degradation of silica optical fibers after annealing at a High Temperature for regeneration. The regeneration characteristics of the RFBGs and the strain characteristics of the sensor are evaluated. Numerical simulation of the sensor is conducted using a three-dimensional finite element model. Anomalous decay behavior of two regeneration regimes is observed for the FBGs written in H2-loaded B–Ge co-doped fiber. The strain sensor exhibits good linearity, stability and repeatability when exposed to constant High Temperatures of up to 540 °C. A satisfactory agreement is obtained between the experimental and numerical results in strain sensitivity. The results demonstrate that the improved metal-packaged strain sensors based on RFBGs in H2-loaded B–Ge co-doped fiber provide great potential for High-Temperature Applications by addressing the issues of mechanical integrity and packaging.
David S. Sholl - One of the best experts on this subject based on the ideXlab platform.
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first principles prediction of new complex transition metal hydrides for High Temperature Applications
ChemInform, 2015Co-Authors: Kelly M Nicholson, David S. ShollAbstract:High-throughput screening by DFT and grand canonical linear programming (GCLP) methods are used to compute thermodynamic properties and phase diagrams of complex transition metal hydrides (CTMH) with a library of 149 proposed materials based on known prototype structures and charge balancing rules.
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first principles screening of complex transition metal hydrides for High Temperature Applications
ChemInform, 2015Co-Authors: Kelly M Nicholson, David S. ShollAbstract:Semi-automated thermodynamic and phase diagram calculations based on DFT and grand canonical linear programming (GCLP) methods are used to screen 102 ternary and quaternary complex transition metal hydrides (CTMHs) and 26 ternary saline hydrides in a library of over 260 metals, intermetallics, binary, and Higher hydrides to identify materials that release H2 at Higher Temperatures than the associated binary hydrides and at elevated Temperatures (T < 1000 K, 1 bar H2 overpressure).
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first principles screening of complex transition metal hydrides for High Temperature Applications
Inorganic Chemistry, 2014Co-Authors: Kelly M Nicholson, David S. ShollAbstract:Metal hydrides with enhanced thermodynamic stability with respect to the associated binary hydrides are useful for High Temperature Applications in which Highly stable materials with low hydrogen overpressures are desired. Though several examples of complex transition metal hydrides (CTMHs) with such enhanced stability are known, little thermodynamic or phase stability information is available for this materials class. In this work, we use semiautomated thermodynamic and phase diagram calculations based on density functional theory (DFT) and grand canonical linear programming (GCLP) methods to screen 102 ternary and quaternary CTMHs and 26 ternary saline hydrides in a library of over 260 metals, intermetallics, binary, and Higher hydrides to identify materials that release hydrogen at Higher Temperatures than the associated binary hydrides and at elevated Temperatures, T > 1000 K, for 1 bar H2 overpressure. For computational efficiency, we employ a tiered screening approach based first on solid phase grou...
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first principles prediction of new complex transition metal hydrides for High Temperature Applications
Inorganic Chemistry, 2014Co-Authors: Kelly M Nicholson, David S. ShollAbstract:Metal hydrides with High thermodynamic stability are desirable for High-Temperature Applications, such as those that require High hydrogen release Temperatures or low hydrogen overpressures. First-principles calculations have been used previously to identify complex transition metal hydrides (CTMHs) for High Temperature use by screening materials with experimentally known structures. Here, we extend our previous screening of CTMHs with a library of 149 proposed materials based on known prototype structures and charge balancing rules. These proposed materials are typically related to known materials by cation substitution. Our semiautomated, High-throughput screening uses density functional theory (DFT) and grand canonical linear programming (GCLP) methods to compute thermodynamic properties and phase diagrams: 81 of the 149 materials are found to be thermodynamically stable. We identified seven proposed materials that release hydrogen at Higher Temperatures than the associated binary hydrides and at High ...
Shan-tung Tu - One of the best experts on this subject based on the ideXlab platform.
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An improved metal-packaged strain sensor based on a regenerated fiber bragg grating in hydrogen-loaded boron–germanium co-doped photosensitive fiber for High-Temperature Applications
Sensors (Switzerland), 2017Co-Authors: Yun Tu, Shao Ping Zhou, Lin Ye, Shan-tung TuAbstract:Local strain measurements are considered as an effective method for structural health monitoring of High-Temperature components, which require accurate, reliable and durable sensors. To develop strain sensors that can be used in Higher Temperature environments, an improved metal-packaged strain sensor based on a regenerated fiber Bragg grating (RFBG) fabricated in hydrogen (H2)-loaded boron–germanium (B–Ge) co-doped photosensitive fiber is developed using the process of combining magnetron sputtering and electroplating, addressing the limitation of mechanical strength degradation of silica optical fibers after annealing at a High Temperature for regeneration. The regeneration characteristics of the RFBGs and the strain characteristics of the sensor are evaluated. Numerical simulation of the sensor is conducted using a three-dimensional finite element model. Anomalous decay behavior of two regeneration regimes is observed for the FBGs written in H2-loaded B–Ge co-doped fiber. The strain sensor exhibits good linearity, stability and repeatability when exposed to constant High Temperatures of up to 540 °C. A satisfactory agreement is obtained between the experimental and numerical results in strain sensitivity. The results demonstrate that the improved metal-packaged strain sensors based on RFBGs in H2-loaded B–Ge co-doped fiber provide great potential for High-Temperature Applications by addressing the issues of mechanical integrity and packaging.
Kelly M Nicholson - One of the best experts on this subject based on the ideXlab platform.
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first principles prediction of new complex transition metal hydrides for High Temperature Applications
ChemInform, 2015Co-Authors: Kelly M Nicholson, David S. ShollAbstract:High-throughput screening by DFT and grand canonical linear programming (GCLP) methods are used to compute thermodynamic properties and phase diagrams of complex transition metal hydrides (CTMH) with a library of 149 proposed materials based on known prototype structures and charge balancing rules.
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first principles screening of complex transition metal hydrides for High Temperature Applications
ChemInform, 2015Co-Authors: Kelly M Nicholson, David S. ShollAbstract:Semi-automated thermodynamic and phase diagram calculations based on DFT and grand canonical linear programming (GCLP) methods are used to screen 102 ternary and quaternary complex transition metal hydrides (CTMHs) and 26 ternary saline hydrides in a library of over 260 metals, intermetallics, binary, and Higher hydrides to identify materials that release H2 at Higher Temperatures than the associated binary hydrides and at elevated Temperatures (T < 1000 K, 1 bar H2 overpressure).
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first principles screening of complex transition metal hydrides for High Temperature Applications
Inorganic Chemistry, 2014Co-Authors: Kelly M Nicholson, David S. ShollAbstract:Metal hydrides with enhanced thermodynamic stability with respect to the associated binary hydrides are useful for High Temperature Applications in which Highly stable materials with low hydrogen overpressures are desired. Though several examples of complex transition metal hydrides (CTMHs) with such enhanced stability are known, little thermodynamic or phase stability information is available for this materials class. In this work, we use semiautomated thermodynamic and phase diagram calculations based on density functional theory (DFT) and grand canonical linear programming (GCLP) methods to screen 102 ternary and quaternary CTMHs and 26 ternary saline hydrides in a library of over 260 metals, intermetallics, binary, and Higher hydrides to identify materials that release hydrogen at Higher Temperatures than the associated binary hydrides and at elevated Temperatures, T > 1000 K, for 1 bar H2 overpressure. For computational efficiency, we employ a tiered screening approach based first on solid phase grou...
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first principles prediction of new complex transition metal hydrides for High Temperature Applications
Inorganic Chemistry, 2014Co-Authors: Kelly M Nicholson, David S. ShollAbstract:Metal hydrides with High thermodynamic stability are desirable for High-Temperature Applications, such as those that require High hydrogen release Temperatures or low hydrogen overpressures. First-principles calculations have been used previously to identify complex transition metal hydrides (CTMHs) for High Temperature use by screening materials with experimentally known structures. Here, we extend our previous screening of CTMHs with a library of 149 proposed materials based on known prototype structures and charge balancing rules. These proposed materials are typically related to known materials by cation substitution. Our semiautomated, High-throughput screening uses density functional theory (DFT) and grand canonical linear programming (GCLP) methods to compute thermodynamic properties and phase diagrams: 81 of the 149 materials are found to be thermodynamically stable. We identified seven proposed materials that release hydrogen at Higher Temperatures than the associated binary hydrides and at High ...
Yun Tu - One of the best experts on this subject based on the ideXlab platform.
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An improved metal-packaged strain sensor based on a regenerated fiber bragg grating in hydrogen-loaded boron–germanium co-doped photosensitive fiber for High-Temperature Applications
Sensors (Switzerland), 2017Co-Authors: Yun Tu, Shao Ping Zhou, Lin Ye, Shan-tung TuAbstract:Local strain measurements are considered as an effective method for structural health monitoring of High-Temperature components, which require accurate, reliable and durable sensors. To develop strain sensors that can be used in Higher Temperature environments, an improved metal-packaged strain sensor based on a regenerated fiber Bragg grating (RFBG) fabricated in hydrogen (H2)-loaded boron–germanium (B–Ge) co-doped photosensitive fiber is developed using the process of combining magnetron sputtering and electroplating, addressing the limitation of mechanical strength degradation of silica optical fibers after annealing at a High Temperature for regeneration. The regeneration characteristics of the RFBGs and the strain characteristics of the sensor are evaluated. Numerical simulation of the sensor is conducted using a three-dimensional finite element model. Anomalous decay behavior of two regeneration regimes is observed for the FBGs written in H2-loaded B–Ge co-doped fiber. The strain sensor exhibits good linearity, stability and repeatability when exposed to constant High Temperatures of up to 540 °C. A satisfactory agreement is obtained between the experimental and numerical results in strain sensitivity. The results demonstrate that the improved metal-packaged strain sensors based on RFBGs in H2-loaded B–Ge co-doped fiber provide great potential for High-Temperature Applications by addressing the issues of mechanical integrity and packaging.