Pulse Method of Measuring Thermal Diffusivity at High Temperatures
Abstract
Equations are derived giving the temperature distribution within a thin slab of material which has received a short pulse of energy on one surface, for the case in which energy loss at the surfaces (by radiation or convection) is not negligible. An analysis of these equations indicates that measurement of thermal diffusivity by the pulse method should be feasible even when losses are so large that the maximum temperature of the far face is only 10 or 20% of the no-loss value; this includes nearly all materials, and temperatures to 2500°K or higher.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
To minimize error in the half-time method, the measurement time scale t_measure must be sufficiently shorter than the relaxation time τ (τ ≫ t_measure).
“To minimize the error in the half-time method, the time scale of the measurement, t measure is required to be sufficiently shorter than τ, typically τ » t measure .”
From Simultaneous measurement of specific heat and thermal conductivity in pulsed magnetic fields (2023) · cites this paper as [32]
When heat exchange is not negligible, ∆T decays proportionally to exp(t/τ) after showing a temperature peak.
“When the heat exchange is not negligible, ∆T decays proportionally to exp(t/τ) after showing a temperature peak.”
From Simultaneous measurement of specific heat and thermal conductivity in pulsed magnetic fields (2023) · cites this paper as [32]
Cites
Flash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal Conductivity
Parker, W. J., Jenkins, R. J., Butler, C. P., & Abbott, G. L. (1961) · Journal of Applied Physics · doi:10.1063/1.1728417 · Cited by 3,978 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
Thermal Transport and Thermal Diffusivity by Laser Flash Technique: A Review
Sundar, R., & Sudha, C. (2025) · International Journal of Thermophysics · doi:10.1007/s10765-024-03479-0 · Cited by 43 · see citing works
Simultaneous measurement of specific heat and thermal conductivity in pulsed magnetic fields
Nomoto, T., Zhong, C., Kageyama, H., Suzuki, Y., Jaime, M., Hashimoto, Y., Katsumoto, S., Matsuyama, N., Dong, C., Matsuo, A., et al. (2023) · arXiv · doi:10.48550/arxiv.2302.01627 · Cited by 5 · see citing works
- Authors
- Cowan, R. D.
- Affiliations
- Los Alamos National Laboratory (US)
- Corresponding author
- Cowan, Robert D.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 1963-04-01
- Volume
- 34
- Issue
- 4
- Pages
- 926-927
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W1972015994
- Cited by
- 628
- References
- 1
- Citations by year
- 2026: 23 · 2025: 20 · 2024: 23 · 2023: 27 · 2022: 21 · 2021: 22 · 2020: 20 · 2019: 34 · 2018: 28 · 2017: 32 · 2016: 32 · 2015: 28 · 2014: 19 · 2013: 18 · 2012: 19
- FWCI
- 9.53
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Applied Physics (publishedVersion)
- Topics
- Physical Sciences › Engineering › Mechanics of Materials › Thermography and Photoacoustic Techniques
- Physical Sciences › Engineering › Computational Mechanics › Heat Transfer and Numerical Methods
- Physical Sciences › Materials Science › Materials Chemistry › Thermal properties of materials
- Keywords
- thermal diffusivity, pulse method, high-temperature measurement, temperature distribution, thin slabs, radiation, convection, transient heat conduction
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
