Dynamic Piezoresistivity of Manganin Transducers

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Description

Manganin, an alloy of copper, manganese, and nickel, was used as a dynamic piezoresistive transducer for shock wave profile measurement in the range from 22 to 410 kbar. Thirty-six gun-accelerated flyer plate impact experiments were performed to calibrate dynamically wires of 1 mil diameter that were electrically insulated with thin dielectric sheets and cemented between target plates. A static calibration gave a linear, reversible, pressure derivative of 2.5 {+-} 0.1 {Omega}/{Omega}/Mbar to 90 kbar. The dynamic calibration is linear within {+-}5% to 200 kbar with a pressure derivative of 2.7 {+-} 0.1 {Omega}/{Omega}/Mbar. At stresses higher than 200 kbar, the ... continued below

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25 pages

Creation Information

Lyle, J. W.; Banner, D. L. & Brier, R. L. April 1, 1973.

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Description

Manganin, an alloy of copper, manganese, and nickel, was used as a dynamic piezoresistive transducer for shock wave profile measurement in the range from 22 to 410 kbar. Thirty-six gun-accelerated flyer plate impact experiments were performed to calibrate dynamically wires of 1 mil diameter that were electrically insulated with thin dielectric sheets and cemented between target plates. A static calibration gave a linear, reversible, pressure derivative of 2.5 {+-} 0.1 {Omega}/{Omega}/Mbar to 90 kbar. The dynamic calibration is linear within {+-}5% to 200 kbar with a pressure derivative of 2.7 {+-} 0.1 {Omega}/{Omega}/Mbar. At stresses higher than 200 kbar, the dynamic response becomes slightly nonlinear and the data were fit with the polynomial expression {sigma} = 0.3896({Delta}R/R) - 0.2348({Delta}R/R){sup 2} + 0.5825({Delta}R/R){sup 3} - 0.3360({Delta}R/R){sup 4} with a standard deviation of {+-}4.4 kbar, where the stress, {sigma} is in megabar. A linear hysteresis was observed with a pressure derivative of 2.6 {+-} 0.1 {Omega}/{Omega}/Mbar during unloading from a peak stress in the range from zero to 247 kbar. 6 figures, 2 tables.

Physical Description

25 pages

Notes

Dep; NTIS; PCA02/MFA01; former OSTI ID: 6778668

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  • Other Information: PBD: 1 Apr 1973

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  • Report No.: UCRL-74664
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/822687 | External Link
  • Office of Scientific & Technical Information Report Number: 822687
  • Archival Resource Key: ark:/67531/metadc785832

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • April 1, 1973

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • March 30, 2016, 12:30 p.m.

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Lyle, J. W.; Banner, D. L. & Brier, R. L. Dynamic Piezoresistivity of Manganin Transducers, report, April 1, 1973; United States. (digital.library.unt.edu/ark:/67531/metadc785832/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.