Room temperature Young's modulus, shear modulus, Poisson's ratio and hardness of PbTe-PbS thermoelectric materials

Jennifer E. Ni; Eldon D. Case; Kristen N. Khabir; Ryan C. Stewart; Chun I. Wu; Timothy P. Hogan; Edward J. Timm; Steven N. Girard; Mercouri G. Kanatzidis

doi:10.1016/j.mseb.2010.02.026

Room temperature Young's modulus, shear modulus, Poisson's ratio and hardness of PbTe-PbS thermoelectric materials

Jennifer E. Ni, Eldon D. Case^*, Kristen N. Khabir, Ryan C. Stewart, Chun I. Wu, Timothy P. Hogan, Edward J. Timm, Steven N. Girard, Mercouri G. Kanatzidis

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

87 Scopus citations

Abstract

Two-phase PbTe-PbS materials, in which PbS is a nanostructured phase, are promising thermoelectric materials for the direct conversion of heat energy into electricity. In this study, a Vickers indentation mean hardness of 1.18 ± 0.09 GPa was measured for hot pressed specimens Pb_0.95Sn_0.05Te-PbS 8% while the mean hardness of cast specimens was 0.68 ± 0.07 GPa. The mean fracture toughness of the not pressed specimens was estimated as 0.35 ± 0.04 MPa m^1/2 via Vickers indentation. Resonant Ultrasound Spectroscopy (RUS) measurements on hot pressed specimens gave mean values of Young's modulus, shear modulus and Poisson's ratio of 53.1 GPa, 21.4 GPa and 0.245, respectively while for the cast specimens the Young's and shear moduli were about 10% lower than for the hot pressed, with a mean value of Poisson's ratio of 0.245. The differences between the hardness and elastic moduli values for the cast and hot pressed specimens are discussed.

Original language	English (US)
Pages (from-to)	58-66
Number of pages	9
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	170
Issue number	1-3
DOIs	https://doi.org/10.1016/j.mseb.2010.02.026
State	Published - Jun 15 2010

Keywords

Elasticity
Hardness
Lead telluride
Powder processing
Thermoelectric

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.mseb.2010.02.026

Cite this

Ni, J. E., Case, E. D., Khabir, K. N., Stewart, R. C., Wu, C. I., Hogan, T. P., Timm, E. J., Girard, S. N., & Kanatzidis, M. G. (2010). Room temperature Young's modulus, shear modulus, Poisson's ratio and hardness of PbTe-PbS thermoelectric materials. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 170(1-3), 58-66. https://doi.org/10.1016/j.mseb.2010.02.026

@article{f555446ac0dd4890986bf0b659bc3264,

title = "Room temperature Young's modulus, shear modulus, Poisson's ratio and hardness of PbTe-PbS thermoelectric materials",

abstract = "Two-phase PbTe-PbS materials, in which PbS is a nanostructured phase, are promising thermoelectric materials for the direct conversion of heat energy into electricity. In this study, a Vickers indentation mean hardness of 1.18 ± 0.09 GPa was measured for hot pressed specimens Pb0.95Sn0.05Te-PbS 8% while the mean hardness of cast specimens was 0.68 ± 0.07 GPa. The mean fracture toughness of the not pressed specimens was estimated as 0.35 ± 0.04 MPa m1/2 via Vickers indentation. Resonant Ultrasound Spectroscopy (RUS) measurements on hot pressed specimens gave mean values of Young's modulus, shear modulus and Poisson's ratio of 53.1 GPa, 21.4 GPa and 0.245, respectively while for the cast specimens the Young's and shear moduli were about 10% lower than for the hot pressed, with a mean value of Poisson's ratio of 0.245. The differences between the hardness and elastic moduli values for the cast and hot pressed specimens are discussed.",

keywords = "Elasticity, Hardness, Lead telluride, Powder processing, Thermoelectric",

author = "Ni, {Jennifer E.} and Case, {Eldon D.} and Khabir, {Kristen N.} and Stewart, {Ryan C.} and Wu, {Chun I.} and Hogan, {Timothy P.} and Timm, {Edward J.} and Girard, {Steven N.} and Kanatzidis, {Mercouri G.}",

note = "Funding Information: The authors acknowledge the financial assistance of the Office of Naval Research Grant N00014-08-1-0613 . The authors also acknowledge the Defense University Research Instrumentation Program (DURIP) Grant No. N00014-09-1-0785, Office of Naval Research, which provided funding for the purchase of the Resonant Ultrasound Spectroscopy apparatus and the laser scattering apparatus utilized in this research. In addition, funding for the hot press facility through U.S. Department of Energy Grant DE-FC26-04NT42281 is acknowledged. ",

year = "2010",

month = jun,

day = "15",

doi = "10.1016/j.mseb.2010.02.026",

language = "English (US)",

volume = "170",

pages = "58--66",

journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",

issn = "0921-5107",

publisher = "Elsevier BV",

number = "1-3",

}

Ni, JE, Case, ED, Khabir, KN, Stewart, RC, Wu, CI, Hogan, TP, Timm, EJ, Girard, SN & Kanatzidis, MG 2010, 'Room temperature Young's modulus, shear modulus, Poisson's ratio and hardness of PbTe-PbS thermoelectric materials', Materials Science and Engineering B: Solid-State Materials for Advanced Technology, vol. 170, no. 1-3, pp. 58-66. https://doi.org/10.1016/j.mseb.2010.02.026

Room temperature Young's modulus, shear modulus, Poisson's ratio and hardness of PbTe-PbS thermoelectric materials. / Ni, Jennifer E.; Case, Eldon D.; Khabir, Kristen N. et al.

In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 170, No. 1-3, 15.06.2010, p. 58-66.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Room temperature Young's modulus, shear modulus, Poisson's ratio and hardness of PbTe-PbS thermoelectric materials

AU - Ni, Jennifer E.

AU - Case, Eldon D.

AU - Khabir, Kristen N.

AU - Stewart, Ryan C.

AU - Wu, Chun I.

AU - Hogan, Timothy P.

AU - Timm, Edward J.

AU - Girard, Steven N.

AU - Kanatzidis, Mercouri G.

N1 - Funding Information: The authors acknowledge the financial assistance of the Office of Naval Research Grant N00014-08-1-0613 . The authors also acknowledge the Defense University Research Instrumentation Program (DURIP) Grant No. N00014-09-1-0785, Office of Naval Research, which provided funding for the purchase of the Resonant Ultrasound Spectroscopy apparatus and the laser scattering apparatus utilized in this research. In addition, funding for the hot press facility through U.S. Department of Energy Grant DE-FC26-04NT42281 is acknowledged.

PY - 2010/6/15

Y1 - 2010/6/15

N2 - Two-phase PbTe-PbS materials, in which PbS is a nanostructured phase, are promising thermoelectric materials for the direct conversion of heat energy into electricity. In this study, a Vickers indentation mean hardness of 1.18 ± 0.09 GPa was measured for hot pressed specimens Pb0.95Sn0.05Te-PbS 8% while the mean hardness of cast specimens was 0.68 ± 0.07 GPa. The mean fracture toughness of the not pressed specimens was estimated as 0.35 ± 0.04 MPa m1/2 via Vickers indentation. Resonant Ultrasound Spectroscopy (RUS) measurements on hot pressed specimens gave mean values of Young's modulus, shear modulus and Poisson's ratio of 53.1 GPa, 21.4 GPa and 0.245, respectively while for the cast specimens the Young's and shear moduli were about 10% lower than for the hot pressed, with a mean value of Poisson's ratio of 0.245. The differences between the hardness and elastic moduli values for the cast and hot pressed specimens are discussed.

AB - Two-phase PbTe-PbS materials, in which PbS is a nanostructured phase, are promising thermoelectric materials for the direct conversion of heat energy into electricity. In this study, a Vickers indentation mean hardness of 1.18 ± 0.09 GPa was measured for hot pressed specimens Pb0.95Sn0.05Te-PbS 8% while the mean hardness of cast specimens was 0.68 ± 0.07 GPa. The mean fracture toughness of the not pressed specimens was estimated as 0.35 ± 0.04 MPa m1/2 via Vickers indentation. Resonant Ultrasound Spectroscopy (RUS) measurements on hot pressed specimens gave mean values of Young's modulus, shear modulus and Poisson's ratio of 53.1 GPa, 21.4 GPa and 0.245, respectively while for the cast specimens the Young's and shear moduli were about 10% lower than for the hot pressed, with a mean value of Poisson's ratio of 0.245. The differences between the hardness and elastic moduli values for the cast and hot pressed specimens are discussed.

KW - Elasticity

KW - Hardness

KW - Lead telluride

KW - Powder processing

KW - Thermoelectric

UR - http://www.scopus.com/inward/record.url?scp=77953136574&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77953136574&partnerID=8YFLogxK

U2 - 10.1016/j.mseb.2010.02.026

DO - 10.1016/j.mseb.2010.02.026

M3 - Article

AN - SCOPUS:77953136574

SN - 0921-5107

VL - 170

SP - 58

EP - 66

JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

IS - 1-3

ER -

Room temperature Young's modulus, shear modulus, Poisson's ratio and hardness of PbTe-PbS thermoelectric materials

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this