The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform
M Thiruchitrambalam - One of the best experts on this subject based on the ideXlab platform.
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static and dynamic mechanical properties of alkali treated unidirectional continuous palmyra palm leaf stalk fiber jute fiber reinforced hybrid polyester composites
Materials & Design, 2013Co-Authors: D Shanmugam, M ThiruchitrambalamAbstract:Abstract Alkali treated continuous Palmyra Palm Leaf Stalk Fiber (PPLSF) and jute fibers were used as reinforcement in unsaturated polyester matrix and their static and dynamic mechanical properties were evaluated. Continuous PPLSF and jute fibers were aligned unidirectionally in bi-layer arrangement and the hybrid composites were fabricated by compression molding process. Positive hybrid effect was observed for the composites due to hybridization. Increasing jute fiber loading showed a considerable increase in tensile and flexural properties of the hybrid composites as compared to treated PPLSF composites. Scanning Electron microscopy (SEM) of the fractured surfaces showed the nature of fiber/matrix interface. The impact strength of the hybrid composites were observed to be less compared to pure PPLSF composites. Addition of jute fibers to PPLSF and alkali treatment of the fibers has enhanced the storage and loss modulus of the hybrid composites. A positive shift of Tan δ peaks to higher temperature and reduction in the peak height of the composites was also observed. The composites with higher jute loading showed maximum damping behavior. Overall the hybridization was found to be efficient showing increased static and dynamic mechanical properties. A comparative study of properties of this hybrid composite with other hybrids made out of using Natural/Glass fibers is elaborated. Hybridization of alkali treated jute and PPLSF has resulted in enhanced properties which are comparable with other Natural/Glass fiber composites thus increasing the scope of application in manufacturing of light weight automotive parts.
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Static and dynamic mechanical properties of alkali treated unidirectional continuous Palmyra Palm Leaf Stalk Fiber/jute fiber reinforced hybrid polyester composites
Materials & Design, 2013Co-Authors: D Shanmugam, M ThiruchitrambalamAbstract:Abstract Alkali treated continuous Palmyra Palm Leaf Stalk Fiber (PPLSF) and jute fibers were used as reinforcement in unsaturated polyester matrix and their static and dynamic mechanical properties were evaluated. Continuous PPLSF and jute fibers were aligned unidirectionally in bi-layer arrangement and the hybrid composites were fabricated by compression molding process. Positive hybrid effect was observed for the composites due to hybridization. Increasing jute fiber loading showed a considerable increase in tensile and flexural properties of the hybrid composites as compared to treated PPLSF composites. Scanning Electron microscopy (SEM) of the fractured surfaces showed the nature of fiber/matrix interface. The impact strength of the hybrid composites were observed to be less compared to pure PPLSF composites. Addition of jute fibers to PPLSF and alkali treatment of the fibers has enhanced the storage and loss modulus of the hybrid composites. A positive shift of Tan δ peaks to higher temperature and reduction in the peak height of the composites was also observed. The composites with higher jute loading showed maximum damping behavior. Overall the hybridization was found to be efficient showing increased static and dynamic mechanical properties. A comparative study of properties of this hybrid composite with other hybrids made out of using Natural/Glass fibers is elaborated. Hybridization of alkali treated jute and PPLSF has resulted in enhanced properties which are comparable with other Natural/Glass fiber composites thus increasing the scope of application in manufacturing of light weight automotive parts.
D Shanmugam - One of the best experts on this subject based on the ideXlab platform.
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static and dynamic mechanical properties of alkali treated unidirectional continuous palmyra palm leaf stalk fiber jute fiber reinforced hybrid polyester composites
Materials & Design, 2013Co-Authors: D Shanmugam, M ThiruchitrambalamAbstract:Abstract Alkali treated continuous Palmyra Palm Leaf Stalk Fiber (PPLSF) and jute fibers were used as reinforcement in unsaturated polyester matrix and their static and dynamic mechanical properties were evaluated. Continuous PPLSF and jute fibers were aligned unidirectionally in bi-layer arrangement and the hybrid composites were fabricated by compression molding process. Positive hybrid effect was observed for the composites due to hybridization. Increasing jute fiber loading showed a considerable increase in tensile and flexural properties of the hybrid composites as compared to treated PPLSF composites. Scanning Electron microscopy (SEM) of the fractured surfaces showed the nature of fiber/matrix interface. The impact strength of the hybrid composites were observed to be less compared to pure PPLSF composites. Addition of jute fibers to PPLSF and alkali treatment of the fibers has enhanced the storage and loss modulus of the hybrid composites. A positive shift of Tan δ peaks to higher temperature and reduction in the peak height of the composites was also observed. The composites with higher jute loading showed maximum damping behavior. Overall the hybridization was found to be efficient showing increased static and dynamic mechanical properties. A comparative study of properties of this hybrid composite with other hybrids made out of using Natural/Glass fibers is elaborated. Hybridization of alkali treated jute and PPLSF has resulted in enhanced properties which are comparable with other Natural/Glass fiber composites thus increasing the scope of application in manufacturing of light weight automotive parts.
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Static and dynamic mechanical properties of alkali treated unidirectional continuous Palmyra Palm Leaf Stalk Fiber/jute fiber reinforced hybrid polyester composites
Materials & Design, 2013Co-Authors: D Shanmugam, M ThiruchitrambalamAbstract:Abstract Alkali treated continuous Palmyra Palm Leaf Stalk Fiber (PPLSF) and jute fibers were used as reinforcement in unsaturated polyester matrix and their static and dynamic mechanical properties were evaluated. Continuous PPLSF and jute fibers were aligned unidirectionally in bi-layer arrangement and the hybrid composites were fabricated by compression molding process. Positive hybrid effect was observed for the composites due to hybridization. Increasing jute fiber loading showed a considerable increase in tensile and flexural properties of the hybrid composites as compared to treated PPLSF composites. Scanning Electron microscopy (SEM) of the fractured surfaces showed the nature of fiber/matrix interface. The impact strength of the hybrid composites were observed to be less compared to pure PPLSF composites. Addition of jute fibers to PPLSF and alkali treatment of the fibers has enhanced the storage and loss modulus of the hybrid composites. A positive shift of Tan δ peaks to higher temperature and reduction in the peak height of the composites was also observed. The composites with higher jute loading showed maximum damping behavior. Overall the hybridization was found to be efficient showing increased static and dynamic mechanical properties. A comparative study of properties of this hybrid composite with other hybrids made out of using Natural/Glass fibers is elaborated. Hybridization of alkali treated jute and PPLSF has resulted in enhanced properties which are comparable with other Natural/Glass fiber composites thus increasing the scope of application in manufacturing of light weight automotive parts.
Marc Javoy - One of the best experts on this subject based on the ideXlab platform.
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CARBON SOLUBILITY IN MID-OCEAN RIDGE BASALTIC MELT AT LOW PRESSURES (250-1950 BAR)
Chemical Geology, 1997Co-Authors: Nathalie Jendrzejewski, Thomas W. Trull, Françoise Pineau, Marc JavoyAbstract:The carbon solubility in a Mid-Ocean Ridge Basaltic (MORB) melt was determined by equilibrating Natural Glass with CO2 produced by decomposition of silver oxalate. These experiments were performed in closed platinum capsules in an internally heated pressure vessel at 1200 and 1300°C, at oxygen fugacity close to the QFM buffer and at pressures between 250 and 1950 bar. Carbon was extracted by incremental heating to fusion and determined by manometry after oxidation to CO2. This method separates small contributions from bubbles trapped in the experimental melts and extracts all the dissolved carbon regardless of its chemical form. Linear correlation between total dissolved C and the total pressure was observed, confirming that carbon solubility obeys Henry's law in the range 0–2000 bar. This yields a best fit minimum solubility of 0.137 ± 0.004 ppm C/bar which can be applied to MORB at crustal pressures. These experimental Glasses, measured by FTIR for carbonate ion absorptions, provide a new determination of the CO32− molar absorption coefficient (e = 398 ± 10 l mol−1 cm−1) in perfect agreement with an independent Natural sample calibration (e = 397 ± 7 l mol−1 cm−1). Comparison to results from literature dissolved C contents of MORB Glasses confirms that many are supersaturated at eruption as a result of slow kinetics of degassing, while a few others are undersaturated because of either C loss during degassing of water-rich melts or generation from carbon-poor sources.
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Carbon solubility in Mid-Ocean Ridge basaltic melt at low pressures (250–1950 bar)
Chemical Geology, 1997Co-Authors: Nathalie Jendrzejewski, Thomas W. Trull, Françoise Pineau, Marc JavoyAbstract:The carbon solubility in a Mid-Ocean Ridge Basaltic (MORB) melt was determined by equilibrating Natural Glass with CO2 produced by decomposition of silver oxalate. These experiments were performed in closed platinum capsules in an internally heated pressure vessel at 1200 and 1300°C, at oxygen fugacity close to the QFM buffer and at pressures between 250 and 1950 bar. Carbon was extracted by incremental heating to fusion and determined by manometry after oxidation to CO2. This method separates small contributions from bubbles trapped in the experimental melts and extracts all the dissolved carbon regardless of its chemical form. Linear correlation between total dissolved C and the total pressure was observed, confirming that carbon solubility obeys Henry's law in the range 0–2000 bar. This yields a best fit minimum solubility of 0.137 ± 0.004 ppm C/bar which can be applied to MORB at crustal pressures. These experimental Glasses, measured by FTIR for carbonate ion absorptions, provide a new determination of the CO32− molar absorption coefficient (e = 398 ± 10 l mol−1 cm−1) in perfect agreement with an independent Natural sample calibration (e = 397 ± 7 l mol−1 cm−1). Comparison to results from literature dissolved C contents of MORB Glasses confirms that many are supersaturated at eruption as a result of slow kinetics of degassing, while a few others are undersaturated because of either C loss during degassing of water-rich melts or generation from carbon-poor sources.
Nathalie Jendrzejewski - One of the best experts on this subject based on the ideXlab platform.
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CARBON SOLUBILITY IN MID-OCEAN RIDGE BASALTIC MELT AT LOW PRESSURES (250-1950 BAR)
Chemical Geology, 1997Co-Authors: Nathalie Jendrzejewski, Thomas W. Trull, Françoise Pineau, Marc JavoyAbstract:The carbon solubility in a Mid-Ocean Ridge Basaltic (MORB) melt was determined by equilibrating Natural Glass with CO2 produced by decomposition of silver oxalate. These experiments were performed in closed platinum capsules in an internally heated pressure vessel at 1200 and 1300°C, at oxygen fugacity close to the QFM buffer and at pressures between 250 and 1950 bar. Carbon was extracted by incremental heating to fusion and determined by manometry after oxidation to CO2. This method separates small contributions from bubbles trapped in the experimental melts and extracts all the dissolved carbon regardless of its chemical form. Linear correlation between total dissolved C and the total pressure was observed, confirming that carbon solubility obeys Henry's law in the range 0–2000 bar. This yields a best fit minimum solubility of 0.137 ± 0.004 ppm C/bar which can be applied to MORB at crustal pressures. These experimental Glasses, measured by FTIR for carbonate ion absorptions, provide a new determination of the CO32− molar absorption coefficient (e = 398 ± 10 l mol−1 cm−1) in perfect agreement with an independent Natural sample calibration (e = 397 ± 7 l mol−1 cm−1). Comparison to results from literature dissolved C contents of MORB Glasses confirms that many are supersaturated at eruption as a result of slow kinetics of degassing, while a few others are undersaturated because of either C loss during degassing of water-rich melts or generation from carbon-poor sources.
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Carbon solubility in Mid-Ocean Ridge basaltic melt at low pressures (250–1950 bar)
Chemical Geology, 1997Co-Authors: Nathalie Jendrzejewski, Thomas W. Trull, Françoise Pineau, Marc JavoyAbstract:The carbon solubility in a Mid-Ocean Ridge Basaltic (MORB) melt was determined by equilibrating Natural Glass with CO2 produced by decomposition of silver oxalate. These experiments were performed in closed platinum capsules in an internally heated pressure vessel at 1200 and 1300°C, at oxygen fugacity close to the QFM buffer and at pressures between 250 and 1950 bar. Carbon was extracted by incremental heating to fusion and determined by manometry after oxidation to CO2. This method separates small contributions from bubbles trapped in the experimental melts and extracts all the dissolved carbon regardless of its chemical form. Linear correlation between total dissolved C and the total pressure was observed, confirming that carbon solubility obeys Henry's law in the range 0–2000 bar. This yields a best fit minimum solubility of 0.137 ± 0.004 ppm C/bar which can be applied to MORB at crustal pressures. These experimental Glasses, measured by FTIR for carbonate ion absorptions, provide a new determination of the CO32− molar absorption coefficient (e = 398 ± 10 l mol−1 cm−1) in perfect agreement with an independent Natural sample calibration (e = 397 ± 7 l mol−1 cm−1). Comparison to results from literature dissolved C contents of MORB Glasses confirms that many are supersaturated at eruption as a result of slow kinetics of degassing, while a few others are undersaturated because of either C loss during degassing of water-rich melts or generation from carbon-poor sources.
Françoise Pineau - One of the best experts on this subject based on the ideXlab platform.
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CARBON SOLUBILITY IN MID-OCEAN RIDGE BASALTIC MELT AT LOW PRESSURES (250-1950 BAR)
Chemical Geology, 1997Co-Authors: Nathalie Jendrzejewski, Thomas W. Trull, Françoise Pineau, Marc JavoyAbstract:The carbon solubility in a Mid-Ocean Ridge Basaltic (MORB) melt was determined by equilibrating Natural Glass with CO2 produced by decomposition of silver oxalate. These experiments were performed in closed platinum capsules in an internally heated pressure vessel at 1200 and 1300°C, at oxygen fugacity close to the QFM buffer and at pressures between 250 and 1950 bar. Carbon was extracted by incremental heating to fusion and determined by manometry after oxidation to CO2. This method separates small contributions from bubbles trapped in the experimental melts and extracts all the dissolved carbon regardless of its chemical form. Linear correlation between total dissolved C and the total pressure was observed, confirming that carbon solubility obeys Henry's law in the range 0–2000 bar. This yields a best fit minimum solubility of 0.137 ± 0.004 ppm C/bar which can be applied to MORB at crustal pressures. These experimental Glasses, measured by FTIR for carbonate ion absorptions, provide a new determination of the CO32− molar absorption coefficient (e = 398 ± 10 l mol−1 cm−1) in perfect agreement with an independent Natural sample calibration (e = 397 ± 7 l mol−1 cm−1). Comparison to results from literature dissolved C contents of MORB Glasses confirms that many are supersaturated at eruption as a result of slow kinetics of degassing, while a few others are undersaturated because of either C loss during degassing of water-rich melts or generation from carbon-poor sources.
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Carbon solubility in Mid-Ocean Ridge basaltic melt at low pressures (250–1950 bar)
Chemical Geology, 1997Co-Authors: Nathalie Jendrzejewski, Thomas W. Trull, Françoise Pineau, Marc JavoyAbstract:The carbon solubility in a Mid-Ocean Ridge Basaltic (MORB) melt was determined by equilibrating Natural Glass with CO2 produced by decomposition of silver oxalate. These experiments were performed in closed platinum capsules in an internally heated pressure vessel at 1200 and 1300°C, at oxygen fugacity close to the QFM buffer and at pressures between 250 and 1950 bar. Carbon was extracted by incremental heating to fusion and determined by manometry after oxidation to CO2. This method separates small contributions from bubbles trapped in the experimental melts and extracts all the dissolved carbon regardless of its chemical form. Linear correlation between total dissolved C and the total pressure was observed, confirming that carbon solubility obeys Henry's law in the range 0–2000 bar. This yields a best fit minimum solubility of 0.137 ± 0.004 ppm C/bar which can be applied to MORB at crustal pressures. These experimental Glasses, measured by FTIR for carbonate ion absorptions, provide a new determination of the CO32− molar absorption coefficient (e = 398 ± 10 l mol−1 cm−1) in perfect agreement with an independent Natural sample calibration (e = 397 ± 7 l mol−1 cm−1). Comparison to results from literature dissolved C contents of MORB Glasses confirms that many are supersaturated at eruption as a result of slow kinetics of degassing, while a few others are undersaturated because of either C loss during degassing of water-rich melts or generation from carbon-poor sources.
