An instrument for environmental control of vapor pressure and temperature for tensile creep and other mechanical property measurements

P. W. Majsztrik; Andrew Bruce Bocarsly; Jay Burton Benziger

doi:10.1063/1.2794736

An instrument for environmental control of vapor pressure and temperature for tensile creep and other mechanical property measurements

P. W. Majsztrik, Andrew Bruce Bocarsly, Jay Burton Benziger

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17 Scopus citations

Abstract

An instrument for measuring the creep response of a material maintained under a controlled environment of temperature and vapor pressure is described. The temperature range of the instrument is 20-250°C while the range of vapor pressure is 0-1 atm. Data are presented for tests conducted on this instrument with Nafion®, a perfluorinated ionomer developed by DuPont and used as a membrane in polymer exchange membrane fuel cells, over a range of temperature and water vapor pressure. The data are useful for predicting long-term, creep behavior of the material in the fuel cell environment as well as providing insight to molecular level interactions in the material as a function of temperature and hydration. Measurements including dynamic and equilibrium strain due to water uptake as well as elastic modulus are described. The main features of the instrument are presented along with experimental methodology and analysis of results. The adaptation of the instrument to other mechanical tests is briefly described.

Original language	English (US)
Article number	103904
Journal	Review of Scientific Instruments
Volume	78
Issue number	10
DOIs	https://doi.org/10.1063/1.2794736
State	Published - 2007

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.2794736

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@article{8b10466bc534413699633f2939a80c09,

title = "An instrument for environmental control of vapor pressure and temperature for tensile creep and other mechanical property measurements",

abstract = "An instrument for measuring the creep response of a material maintained under a controlled environment of temperature and vapor pressure is described. The temperature range of the instrument is 20-250°C while the range of vapor pressure is 0-1 atm. Data are presented for tests conducted on this instrument with Nafion{\textregistered}, a perfluorinated ionomer developed by DuPont and used as a membrane in polymer exchange membrane fuel cells, over a range of temperature and water vapor pressure. The data are useful for predicting long-term, creep behavior of the material in the fuel cell environment as well as providing insight to molecular level interactions in the material as a function of temperature and hydration. Measurements including dynamic and equilibrium strain due to water uptake as well as elastic modulus are described. The main features of the instrument are presented along with experimental methodology and analysis of results. The adaptation of the instrument to other mechanical tests is briefly described.",

author = "Majsztrik, {P. W.} and Bocarsly, {Andrew Bruce} and Benziger, {Jay Burton}",

note = "Funding Information: The authors thank the National Science Foundation (CTS-0354279 and DMR-0213707 through the Materials Research and Science Engineering Center at Princeton) for its support of this work. P.W.M. thanks Mr. Brent Kirby for the assistance in programing LABVIEW , Dr. Jonathan Mann for his input on aspects of the instrument design, and Ms. M. Barclay Satterfield for her initial efforts to measure creep of hydrated Nafion. P.W.M. also thanks Mr. Kenneth Andreas for his machining and design assistance as well as access to the machine shop.",

year = "2007",

doi = "10.1063/1.2794736",

language = "English (US)",

volume = "78",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "10",

}

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AU - Majsztrik, P. W.

AU - Bocarsly, Andrew Bruce

AU - Benziger, Jay Burton

N1 - Funding Information: The authors thank the National Science Foundation (CTS-0354279 and DMR-0213707 through the Materials Research and Science Engineering Center at Princeton) for its support of this work. P.W.M. thanks Mr. Brent Kirby for the assistance in programing LABVIEW , Dr. Jonathan Mann for his input on aspects of the instrument design, and Ms. M. Barclay Satterfield for her initial efforts to measure creep of hydrated Nafion. P.W.M. also thanks Mr. Kenneth Andreas for his machining and design assistance as well as access to the machine shop.

PY - 2007

Y1 - 2007

N2 - An instrument for measuring the creep response of a material maintained under a controlled environment of temperature and vapor pressure is described. The temperature range of the instrument is 20-250°C while the range of vapor pressure is 0-1 atm. Data are presented for tests conducted on this instrument with Nafion®, a perfluorinated ionomer developed by DuPont and used as a membrane in polymer exchange membrane fuel cells, over a range of temperature and water vapor pressure. The data are useful for predicting long-term, creep behavior of the material in the fuel cell environment as well as providing insight to molecular level interactions in the material as a function of temperature and hydration. Measurements including dynamic and equilibrium strain due to water uptake as well as elastic modulus are described. The main features of the instrument are presented along with experimental methodology and analysis of results. The adaptation of the instrument to other mechanical tests is briefly described.

AB - An instrument for measuring the creep response of a material maintained under a controlled environment of temperature and vapor pressure is described. The temperature range of the instrument is 20-250°C while the range of vapor pressure is 0-1 atm. Data are presented for tests conducted on this instrument with Nafion®, a perfluorinated ionomer developed by DuPont and used as a membrane in polymer exchange membrane fuel cells, over a range of temperature and water vapor pressure. The data are useful for predicting long-term, creep behavior of the material in the fuel cell environment as well as providing insight to molecular level interactions in the material as a function of temperature and hydration. Measurements including dynamic and equilibrium strain due to water uptake as well as elastic modulus are described. The main features of the instrument are presented along with experimental methodology and analysis of results. The adaptation of the instrument to other mechanical tests is briefly described.

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An instrument for environmental control of vapor pressure and temperature for tensile creep and other mechanical property measurements

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All Science Journal Classification (ASJC) codes

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