International Journal of Thermophysics

International Journal of Thermophysics is published by Springer US and is in Zone 3 of Engineering in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Phase Equilibria and Thermodynamics, Chemical Thermodynamics and Molecular Structure and Thermodynamic properties of mixtures, together about 37.9% of its articles. (generated from OpenAlex topic counts and CAS ranking data)

The Journal defines Thermophysics as the study and application of the equilibrium and transport properties of systems in their gas, liquid, or solid states, of the transformation between such states under non-equilibrium conditions and of the relationship between the molecular characteristics of the system and its macroscopic properties. We aim to: Serve as an international medium for the publication of peer-reviewed papers covering experimental, theoretical, and computational work in the field of Thermophysics. The systems encompassed include soft matter, bio-materials, nano-fluids, ionic liquids, phase change materials and thin films. A wide range of variables including temperature, pressure, composition, wavelength, and others are of interest. Publish papers on instrumentation and measurement techniques in thermophysics (including densimetry, calorimetry, viscometry, photoacoustic and photothermal techniques, light scattering for diffusion). Assist generators and users of thermophysical property data who aim for an understanding of property-function relationships. It is in the latter context that the use of computer simulations of model molecular systems will be included. Cover a wide range of topics such as Thermodynamic properties, including p-V-T behavior, phase equilibria, heat capacity, enthalpy, thermal expansion, speed of sound as well as other derivative properties and excess properties of mixtures, and critical phenomena. Transport properties, including viscosity; thermal and electrical conductivity; mass diffusivity; thermal diffusivity, Soret coefficient, non-Newtonian behavior; and thermal, thermoacoustic, and other diffusion waves. Optical and thermal radiative properties, including dielectric constant, refractive index, emissivity, reflectivity, transmissivity, and absorptivity. Interfacial properties, including solid-solid, solid-fluid, and fluid-fluid interfaces; surface tension; interfacial profiles; interfacial transport and wetting. Nonequilibrium thermodynamics, including nucleation phenomena, fluctuations, metastability, mesoscopic systems, and micro-heterogeneous systems. Metrology in thermophysics, including development of measurement techniques and calibration standards, measurements of fundamental constants, and uncertainty assessments. Established and emerging areas of the engineering and medical applications of thermophysical properties. Papers accepted for publication in the International Journal of Thermophysics must represe

From the journal's Aims & Scope

Research area (LetPub): Mechanics

Editor-in-chief Marc J. AssaelPublisher website

Editorial board by country: 1 in mainland China (about 5%); most named United States 6, Germany 4, United Kingdom 3, Japan 2, Mainland China 1 (21 members with a country) Editorial board ↗Publisher website · 2026-09-29

CAS Journal Ranking

Database indexing

SCIEScopusLetPub

International journal early-warning lists: not listed in any editionLetPub

Indexing the journal's website claims

EI CompendexINSPECCASCurrent ContentsPublisher website

Other: Google Scholar, EBSCO, ProQuest, Dimensions, CNKI, Baidu, Astrophysics Data System, Naver, OCLC, Portico, CLOCKSS

As the journal's website lists them, not checked against each database; for Web of Science editions the records above apply.

Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.

Impact

Impact factor

2.94LetPub · 2026-09-13

Impact factor (publisher) 2025

3.6Publisher website · 2026-09-29

5-year impact factor (publisher) 2025

3.1Publisher website · 2026-09-29

CiteScore 2026-06

4.8LetPub · 2026-09-13

SJR 2026-06

0.45LetPub · 2026-09-13

SNIP 2026-06

1.07LetPub · 2026-09-13

h-index

60LetPub · 2026-09-13

h-index

105OpenAlex · 2026-10-01

i10-index

2,944OpenAlex · 2026-10-01

2-year mean citedness

4.06OpenAlex · 2026-10-01

Self-citation rate

19.4%LetPub · 2026-09-13

Share of gold OA articles

29.48%LetPub · 2026-09-13

Volume

Articles per year

206LetPub · 2026-09-13

Downloads per year (publisher) 2025

508,200Publisher website · 2026-09-29

Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.

Other sources

Average review time (community reports)

about 6 monthsLetPub · 2026-09-13

Average acceptance (community reports)

75%LetPub · 2026-09-13

Submission to first decision

1 daysPublisher website · 2026-09-29

Peer review

Double anonymous peer reviewPublisher website

Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.

A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.

The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.

Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.

Publisher

Springer US

Country or region

UNITED STATES

Language

English

Frequency

Bimonthly

Founded

1980

ISSN

0195-928X

Electronic ISSN

1572-9567

Official links

• Journal homepage ↗OpenAlex
• Submission system ↗LetPub
• Author guidelines ↗LetPub
• Special issues ↗Publisher website