The Experts below are selected from a list of 183312 Experts worldwide ranked by ideXlab platform
Jinghao Qiu - One of the best experts on this subject based on the ideXlab platform.
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Effect of Fabrication Process on electrical properties of polymer/multi-wall carbon nanotube nanocomposites
Composites Part A-applied Science and Manufacturing, 2008Co-Authors: Zen Masuda, Go Yamamoto, Hisao Fukunaga, Toshiyuki Hashida, Jinghao QiuAbstract:Abstract Polymer/carbon nanotubes nanocomposites were fabricated by an in situ polymerization Process using multi-wall carbon nanotubes (MWNT) as filler in an epoxy polymer. Effects of curing Process, mixing speed, mixing time, addition of ethanol, timing of hardener addition, etc., in the Fabrication Process on the electrical properties of nanocomposites have been investigated. In the Fabrication Process, the effective formation of macroscopic conducting network in matrix is most important to enhance the electrical properties of nanocomposites. It was found that the curing temperature and the mixing conditions are key factors in the Fabrication Process, which influence the formation of conducting network significantly. Therefore, careful design of these factors in the Fabrication Process is required to achieve high electrical performances of nanocomposites. The experimental percolation threshold of the resultant nanocomposites was around 0.1 wt%. Moreover, a statistical percolation model was built up to numerically investigate the percolation threshold. The experimental electrical conductivity increases from the percolation threshold following a percolation-like power law with the identified critical exponent t as 1.75.
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effect of Fabrication Process on electrical properties of polymer multi wall carbon nanotube nanocomposites
Composites Part A-applied Science and Manufacturing, 2008Co-Authors: Zen Masuda, Go Yamamoto, Hisao Fukunaga, Toshiyuki Hashida, Jinghao QiuAbstract:Abstract Polymer/carbon nanotubes nanocomposites were fabricated by an in situ polymerization Process using multi-wall carbon nanotubes (MWNT) as filler in an epoxy polymer. Effects of curing Process, mixing speed, mixing time, addition of ethanol, timing of hardener addition, etc., in the Fabrication Process on the electrical properties of nanocomposites have been investigated. In the Fabrication Process, the effective formation of macroscopic conducting network in matrix is most important to enhance the electrical properties of nanocomposites. It was found that the curing temperature and the mixing conditions are key factors in the Fabrication Process, which influence the formation of conducting network significantly. Therefore, careful design of these factors in the Fabrication Process is required to achieve high electrical performances of nanocomposites. The experimental percolation threshold of the resultant nanocomposites was around 0.1 wt%. Moreover, a statistical percolation model was built up to numerically investigate the percolation threshold. The experimental electrical conductivity increases from the percolation threshold following a percolation-like power law with the identified critical exponent t as 1.75.
Zen Masuda - One of the best experts on this subject based on the ideXlab platform.
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Effect of Fabrication Process on electrical properties of polymer/multi-wall carbon nanotube nanocomposites
Composites Part A-applied Science and Manufacturing, 2008Co-Authors: Zen Masuda, Go Yamamoto, Hisao Fukunaga, Toshiyuki Hashida, Jinghao QiuAbstract:Abstract Polymer/carbon nanotubes nanocomposites were fabricated by an in situ polymerization Process using multi-wall carbon nanotubes (MWNT) as filler in an epoxy polymer. Effects of curing Process, mixing speed, mixing time, addition of ethanol, timing of hardener addition, etc., in the Fabrication Process on the electrical properties of nanocomposites have been investigated. In the Fabrication Process, the effective formation of macroscopic conducting network in matrix is most important to enhance the electrical properties of nanocomposites. It was found that the curing temperature and the mixing conditions are key factors in the Fabrication Process, which influence the formation of conducting network significantly. Therefore, careful design of these factors in the Fabrication Process is required to achieve high electrical performances of nanocomposites. The experimental percolation threshold of the resultant nanocomposites was around 0.1 wt%. Moreover, a statistical percolation model was built up to numerically investigate the percolation threshold. The experimental electrical conductivity increases from the percolation threshold following a percolation-like power law with the identified critical exponent t as 1.75.
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effect of Fabrication Process on electrical properties of polymer multi wall carbon nanotube nanocomposites
Composites Part A-applied Science and Manufacturing, 2008Co-Authors: Zen Masuda, Go Yamamoto, Hisao Fukunaga, Toshiyuki Hashida, Jinghao QiuAbstract:Abstract Polymer/carbon nanotubes nanocomposites were fabricated by an in situ polymerization Process using multi-wall carbon nanotubes (MWNT) as filler in an epoxy polymer. Effects of curing Process, mixing speed, mixing time, addition of ethanol, timing of hardener addition, etc., in the Fabrication Process on the electrical properties of nanocomposites have been investigated. In the Fabrication Process, the effective formation of macroscopic conducting network in matrix is most important to enhance the electrical properties of nanocomposites. It was found that the curing temperature and the mixing conditions are key factors in the Fabrication Process, which influence the formation of conducting network significantly. Therefore, careful design of these factors in the Fabrication Process is required to achieve high electrical performances of nanocomposites. The experimental percolation threshold of the resultant nanocomposites was around 0.1 wt%. Moreover, a statistical percolation model was built up to numerically investigate the percolation threshold. The experimental electrical conductivity increases from the percolation threshold following a percolation-like power law with the identified critical exponent t as 1.75.
Isabelle Dufour - One of the best experts on this subject based on the ideXlab platform.
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Simple Fabrication Process for organic piezoelectric resonators : application to viscosity measurement
2016Co-Authors: Pierre-henri Ducrot, Isabelle Dufour, Fabrice Mathieu, Liviu Nicu, Martin Heinisch, Bernhard Jakoby, Cédric AyelaAbstract:Silicon-based Micro Electro Mechanical Systems (MEMS) success is incontestable as they are widely present in new technologies. However, technologies based on organic electronics are emerging because they are more interesting in terms of Fabrication costs, with a large panel of functional properties, and are very attractive for flexible devices. In this context, organic piezoelectric resonators based on a simple low-cost Fabrication Process are presented in this work for viscosity sensing. It shows the potential of organic resonators in liquid media for biological and chemical sensing.
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fast Fabrication Process for low environmental impact microsystems
Journal of Cleaner Production, 2015Co-Authors: Etienne Lemaire, Damien Thuau, Benjamin Caillard, Isabelle DufourAbstract:In the context of building a sustainable future by reducing fossil energy consumption with the objective of minimizing detrimental climate change, particular attention was given to minimizing the complexity, energy consumption and environmental impact of microstructures manufacturing. In this work a new fast-Fabrication Process for microelectromechanical systems is presented. The name of this new Fabrication Process is KISSES for Keep It Short, Simple and Environmentally Sustainable. Combining classical deposition techniques (with common metals and polymers and with less common materials such as tree resins, paper and glue), release techniques and a computer numerical control cutting machine, a two-dimensional Fabrication Process has been developed and the first steps of three-dimensional microFabrication have also been initiated. In order to test this new Process, various test structures have been fabricated and tested. These include resonant structures with electronic actuation and electronic measurement, having good quality factors for plastic-based devices, and high-resolution masks (~10 µm) which can be used, for example, for screen-printing techniques. Finally, a temperature sensor and a viscosity sensor have been designed, fabricated with the KISSES Process and characterized. These devices exhibit, respectively, a limit of detection of 0.112°C and a viscosity estimation error of less than 10% for viscous silicone oils from 5cP to 50cP. These characterizations of the microdevices show that the proposed Process provides a simple method that is capable of fabricating devices that function with high performance. The aim of developing a rapid, simple and environmentally sustainable Process has therefore been demonstrated.
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Fast Fabrication Process of low environmental impact MEMS
Journal of Cleaner Production, 2015Co-Authors: Etienne Lemaire, Damien Thuau, Benjamin Caillard, Isabelle DufourAbstract:In the context of building a sustainable future by reducing fossil energy consumption with the objective of minimizing detrimental climate change, particular attention was given to minimizing the complexity, energy consumption and environmental impact of microstructures manufacturing. In this work a new fast-Fabrication Process for microelectromechanical systems is presented. The name of this new Fabrication Process is KISSES for Keep It Short, Simple and Environmentally Sustainable. Combining classical deposition techniques (with common metals and polymers and with less common materials such as tree resins, paper and glue), release techniques and a computer numerical control cutting machine, a two-dimensional Fabrication Process has been developed and the first steps of three-dimensional microFabrication have also been initiated. In order to test this new Process, various test structures have been fabricated and tested. These include resonant structures with electronic actuation and electronic measurement, having good quality factors for plastic-based devices, and high-resolution masks (~10 µm) which can be used, for example, for screen-printing techniques. Finally, a temperature sensor and a viscosity sensor have been designed, fabricated with the KISSES Process and characterized. These devices exhibit, respectively, a limit of detection of 0.112°C and a viscosity estimation error of less than 10% for viscous silicone oils from 5cP to 50cP. These characterizations of the microdevices show that the proposed Process provides a simple method that is capable of fabricating devices that function with high performance. The aim of developing a rapid, simple and environmentally sustainable Process has therefore been demonstrated.
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Fast Fabrication Process of low environmental impact MEMS
Journal of Cleaner Production, 2015Co-Authors: Etienne Lemaire, Damien Thuau, Benjamin Caillard, Isabelle DufourAbstract:In the context of building a sustainable future by reducing fossil energy consumption with the objective of minimizing detrimental climate change, particular attention was given to minimizing the complexity, energy consumption and environmental impact of microstructures manufacturing. In this work a new fast-Fabrication Process for microelectromechanical systems is presented. The name of this new Fabrication Process is KISSES for Keep It Short, Simple and Environmentally Sustainable. Combining classical deposition techniques (with common metals and polymers and with less common materials such as tree resins, paper and glue), release techniques and a computer numerical control cutting machine, a two-dimensional Fabrication Process has been developed and the first steps of three-dimensional microFabrication have also been initiated. In order to test this new Process, various test structures have been fabricated and tested. These include resonant structures with electronic actuation and electronic measurement, having good quality factors for plastic-based devices, and high-resolution masks (~10 µm) which can be used, for example, for screen-printing techniques. Finally, a temperature sensor and a viscosity sensor have been designed, fabricated with the KISSES Process and characterized. These devices exhibit, respectively, a limit of detection of 0.112°C and a viscosity estimation error of less than 10% for viscous silicone oils from 5cP to 50cP. These characterizations of the microdevices show that the proposed Process provides a simple method that is capable of fabricating devices that function with high performance. The aim of developing a rapid, simple and environmentally sustainable Process has therefore been demonstrated.
Hisao Fukunaga - One of the best experts on this subject based on the ideXlab platform.
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Effect of Fabrication Process on electrical properties of polymer/multi-wall carbon nanotube nanocomposites
Composites Part A-applied Science and Manufacturing, 2008Co-Authors: Zen Masuda, Go Yamamoto, Hisao Fukunaga, Toshiyuki Hashida, Jinghao QiuAbstract:Abstract Polymer/carbon nanotubes nanocomposites were fabricated by an in situ polymerization Process using multi-wall carbon nanotubes (MWNT) as filler in an epoxy polymer. Effects of curing Process, mixing speed, mixing time, addition of ethanol, timing of hardener addition, etc., in the Fabrication Process on the electrical properties of nanocomposites have been investigated. In the Fabrication Process, the effective formation of macroscopic conducting network in matrix is most important to enhance the electrical properties of nanocomposites. It was found that the curing temperature and the mixing conditions are key factors in the Fabrication Process, which influence the formation of conducting network significantly. Therefore, careful design of these factors in the Fabrication Process is required to achieve high electrical performances of nanocomposites. The experimental percolation threshold of the resultant nanocomposites was around 0.1 wt%. Moreover, a statistical percolation model was built up to numerically investigate the percolation threshold. The experimental electrical conductivity increases from the percolation threshold following a percolation-like power law with the identified critical exponent t as 1.75.
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effect of Fabrication Process on electrical properties of polymer multi wall carbon nanotube nanocomposites
Composites Part A-applied Science and Manufacturing, 2008Co-Authors: Zen Masuda, Go Yamamoto, Hisao Fukunaga, Toshiyuki Hashida, Jinghao QiuAbstract:Abstract Polymer/carbon nanotubes nanocomposites were fabricated by an in situ polymerization Process using multi-wall carbon nanotubes (MWNT) as filler in an epoxy polymer. Effects of curing Process, mixing speed, mixing time, addition of ethanol, timing of hardener addition, etc., in the Fabrication Process on the electrical properties of nanocomposites have been investigated. In the Fabrication Process, the effective formation of macroscopic conducting network in matrix is most important to enhance the electrical properties of nanocomposites. It was found that the curing temperature and the mixing conditions are key factors in the Fabrication Process, which influence the formation of conducting network significantly. Therefore, careful design of these factors in the Fabrication Process is required to achieve high electrical performances of nanocomposites. The experimental percolation threshold of the resultant nanocomposites was around 0.1 wt%. Moreover, a statistical percolation model was built up to numerically investigate the percolation threshold. The experimental electrical conductivity increases from the percolation threshold following a percolation-like power law with the identified critical exponent t as 1.75.
Toshiyuki Hashida - One of the best experts on this subject based on the ideXlab platform.
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Effect of Fabrication Process on electrical properties of polymer/multi-wall carbon nanotube nanocomposites
Composites Part A-applied Science and Manufacturing, 2008Co-Authors: Zen Masuda, Go Yamamoto, Hisao Fukunaga, Toshiyuki Hashida, Jinghao QiuAbstract:Abstract Polymer/carbon nanotubes nanocomposites were fabricated by an in situ polymerization Process using multi-wall carbon nanotubes (MWNT) as filler in an epoxy polymer. Effects of curing Process, mixing speed, mixing time, addition of ethanol, timing of hardener addition, etc., in the Fabrication Process on the electrical properties of nanocomposites have been investigated. In the Fabrication Process, the effective formation of macroscopic conducting network in matrix is most important to enhance the electrical properties of nanocomposites. It was found that the curing temperature and the mixing conditions are key factors in the Fabrication Process, which influence the formation of conducting network significantly. Therefore, careful design of these factors in the Fabrication Process is required to achieve high electrical performances of nanocomposites. The experimental percolation threshold of the resultant nanocomposites was around 0.1 wt%. Moreover, a statistical percolation model was built up to numerically investigate the percolation threshold. The experimental electrical conductivity increases from the percolation threshold following a percolation-like power law with the identified critical exponent t as 1.75.
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effect of Fabrication Process on electrical properties of polymer multi wall carbon nanotube nanocomposites
Composites Part A-applied Science and Manufacturing, 2008Co-Authors: Zen Masuda, Go Yamamoto, Hisao Fukunaga, Toshiyuki Hashida, Jinghao QiuAbstract:Abstract Polymer/carbon nanotubes nanocomposites were fabricated by an in situ polymerization Process using multi-wall carbon nanotubes (MWNT) as filler in an epoxy polymer. Effects of curing Process, mixing speed, mixing time, addition of ethanol, timing of hardener addition, etc., in the Fabrication Process on the electrical properties of nanocomposites have been investigated. In the Fabrication Process, the effective formation of macroscopic conducting network in matrix is most important to enhance the electrical properties of nanocomposites. It was found that the curing temperature and the mixing conditions are key factors in the Fabrication Process, which influence the formation of conducting network significantly. Therefore, careful design of these factors in the Fabrication Process is required to achieve high electrical performances of nanocomposites. The experimental percolation threshold of the resultant nanocomposites was around 0.1 wt%. Moreover, a statistical percolation model was built up to numerically investigate the percolation threshold. The experimental electrical conductivity increases from the percolation threshold following a percolation-like power law with the identified critical exponent t as 1.75.