DOI: 10.1063/1.1734971. Elastic Constants of Thorium Single Crystals in the Range 77

Elastic Constants of Thorium Single Crystals in the Range 77–400°K

10.1063/1.1734971

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The elastic constants of thorium single crystals have been determined at ultrasonic frequencies employing both resonance and pulse-echo techniques. The values at 300°K in units of 1011 dyne/cm2 are, C11=7.53, C12=4.89, and C44=4.78. The constants C11 and C44 increase and C12 decreases with decreasing temperature and extrapolate to 7.79, 4.82, and 5.13, respectively, at 0°K. The Cauchy relation C12=C44 occurs, quite probably fortuitously, at 271°K. The anisotropy factor 2C44/(C11–C12) at room temperature is 3.6 which is comparable to the values for lead and gold. Calculated Poisson's ratios, σ100 and σ111, indicate a much stronger resistance to contraction in the close-packed planes than in the less densely packed (100) planes.

Bibliography

Armstrong, P. E., Carlson, O. N., & Smith, J. F. (1959). Elastic Constants of Thorium Single Crystals in the Range 77â400Â°K. Journal of Applied Physics, 30(1), 36â41.

Authors 3

P. E. Armstrong (first)
O. N. Carlson (additional)
J. F. Smith (additional)

References 19 Referenced 52

{'key': '2024020121505026100_r1', 'first-page': '74', 'volume': '9', 'year': '1956', 'journal-title': 'Proc. Intnatl. Conf. Peaceful Uses Atomic Energy'} / Proc. Intnatl. Conf. Peaceful Uses Atomic Energy (1956)
{'key': '2024020121505026100_r2'}
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{'key': '2024020121505026100_r4', 'first-page': '301', 'volume': '3', 'year': '1953', 'journal-title': 'Reactor Handbook.'} / Reactor Handbook. (1953)
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{'key': '2024020121505026100_r6', 'first-page': '631', 'volume': '22', 'year': '1907', 'journal-title': 'Ann. Physik'} / Ann. Physik (1907)
{'key': '2024020121505026100_r7', 'first-page': '298', 'volume': '20', 'year': '1944', 'journal-title': 'Proc. Indian Acad. Sci.'} / Proc. Indian Acad. Sci. (1944)
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Dates

Type	When
Created	20 years, 4 months ago (April 22, 2005, 12:14 p.m.)
Deposited	1 year, 7 months ago (Feb. 1, 2024, 5:43 p.m.)
Indexed	4 weeks, 2 days ago (Aug. 6, 2025, 8:04 a.m.)
Issued	66 years, 8 months ago (Jan. 1, 1959)
Published	66 years, 8 months ago (Jan. 1, 1959)
Published Print	66 years, 8 months ago (Jan. 1, 1959)

Funders 0

None

BibTeX

@article{Armstrong_1959, title={Elastic Constants of Thorium Single Crystals in the Range 77–400°K}, volume={30}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1734971}, DOI={10.1063/1.1734971}, number={1}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Armstrong, P. E. and Carlson, O. N. and Smith, J. F.}, year={1959}, month=jan, pages={36–41} }

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