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Topic · Materials Chemistry

Thermal Expansion and Ionic Conductivity

Thermal Expansion and Ionic Conductivity is a research topic within Materials Chemistry. Science Explorer counts 15k research works in it since 1951. 19.8% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the phenomenon of negative thermal expansion in various materials, including perovskites, framework compounds, and antiperovskite compounds. It explores the mechanisms, controllability, and technological applications of negative thermal expansion, as well as its correlation with superconductivity and magnetic properties. Additionally, it discusses the development of sodium-beta alumina batteries and the associated challenges and perspectives.

  • Negative Thermal Expansion
  • Materials
  • Perovskite
  • Framework
  • Superconductivity
  • Magnetic Nanocrystals
  • Lattice Dynamics
  • Antiperovskite Compounds
  • Anomalous Physical Properties
  • Sodium-Beta Alumina Batteries
Research works
15k
fractional, since 1951
In the world top 10%
3k
per year above
Top-10% rate
19.8%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
+54%
the tick is no change

Which countries lead Thermal Expansion and Ionic Conductivity research?

By volume, China and the United States publish the most (1.5k and 368 works in 2022–2025).

By volume, 2022–2025

  1. 1 China 1.5k works
  2. 2 United States 368 works
  3. 3 India 238 works
  4. 4 Japan 196 works
  5. 5 Germany 158 works
  6. 6 Russia 135 works
  7. 7 South Korea 135 works
  8. 8 Saudi Arabia 86 works
  9. 9 France 82 works
  10. 10 United Kingdom 81 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 50.7%United States: 12.3%India: 7.9%Japan: 6.5%6 others listed: 22.6%51%largest
China1,519 · 50.7%United States368 · 12.3%India238 · 7.9%Japan196 · 6.5%6 others listed677 · 22.6%

Shares of the rows listed above, not of the whole node.

Which institutions lead Thermal Expansion and Ionic Conductivity research?

By volume in 2022–2025, Chinese Academy of Sciences publishes the most Thermal Expansion and Ionic Conductivity research, followed by University of Science and Technology Beijing and Harbin Institute of Technology.

By volume, 2022–2025

  1. 1 Chinese Academy of SciencesChina 47 works
  2. 2 University of Science and Technology BeijingChina 34 works
  3. 3 Harbin Institute of TechnologyChina 29 works
  4. 4 Zhengzhou UniversityChina 27 works
  5. 5 Central South UniversityChina 24 works
  6. 6 Huazhong University of Science and TechnologyChina 23 works
  7. 7 Tsinghua UniversityChina 22 works
  8. 8 Beijing Institute of TechnologyChina 21 works
  9. 9 University of Chinese Academy of SciencesChina 21 works
  10. 10 Xi'an Jiaotong UniversityChina 19 works

Who are the leading researchers in Thermal Expansion and Ionic Conductivity?

The most-cited researchers publishing on Thermal Expansion and Ionic Conductivity include John B. Goodenough, David J. Singh and Huan Liu.

  1. 1 John B. Goodenough United States 6.2k citations
  2. 2 David J. Singh United States 5.1k citations
  3. 3 Huan Liu Australia 4.9k citations
  4. 4 Marvin L. Cohen United States 4.7k citations
  5. 5 Zhanhu Guo United States 4.4k citations
  6. 6 Mercouri G. Kanatzidis United States 4.3k citations
  7. 7 Xiong Wen Lou Singapore 4.2k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

Where is Thermal Expansion and Ionic Conductivity research done?

The largest centres of Thermal Expansion and Ionic Conductivity research in 2022–2025 are Beijing (China), Shanghai (China), Wuhan (China) and Xi'an (China). Among places with at least 20 works in it, it is an unusually large share of all research in Yekaterinburg.

Largest cities, 2022–2025

  1. 1 Beijing China 263 works
  2. 2 Shanghai China 89 works
  3. 3 Wuhan China 75 works
  4. 4 Xi'an China 65 works
  5. 5 Nanjing China 61 works
  6. 6 Guangzhou China 48 works
  7. 7 Seoul South Korea 48 works
  8. 8 Tianjin China 46 works
  9. 9 Hefei China 45 works
  10. 10 Tokyo Japan 44 works

Where it is the local speciality

  1. YekaterinburgRU · 41.2 works12×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Thermal Expansion and Ionic Conductivity than the world average.

See Thermal Expansion and Ionic Conductivity on the map

Where is the best place to study Thermal Expansion and Ionic Conductivity?

Among universities, judged by research, King Khalid University, Khwaja Fareed University of Engineering and Information Technology and Khulna University of Engineering and Technology score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%20%40%60%mean 39.97%fractional works in this node (log) →share in the world top 10% →King Khalid University: 14, 47.0%Khwaja Fareed University of Engineering and Information Technology: 8, 54.6%Khulna University of Engineering and Technology: 13, 46.2%University of Science and Technology Beijing: 34, 26.9%Princess Nourah bint Abdulrahman University: 8, 38.3%Kunming University of Science and Technology: 17, 31.7%Huazhong University of Science and Technology: 23, 40.3%Zhengzhou University: 27, 26.7%Beijing Institute of Technology: 21, 42.4%The University of Texas at Austin: 14, 45.6%Khwaja Fareed Univer…King Khalid UniversityKhulna University of…University of Scienc…
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1 King Khalid UniversitySaudi Arabia 71.847.0%10.0×14 —
2 Khwaja Fareed University of Engineering and Information TechnologyPakistan 67.354.6%45.3×8 —
3 Khulna University of Engineering and TechnologyBangladesh 63.446.2%36.2×13 —
4 University of Science and Technology BeijingChina 62.726.9%11.5×34 +64.1%
5 Princess Nourah bint Abdulrahman UniversitySaudi Arabia 56.338.3%8.4×8 —
6 Kunming University of Science and TechnologyChina 55.931.7%7.9×17 +155.0%
7 Huazhong University of Science and TechnologyChina 55.640.3%3.9×23 +269.5%
8 Zhengzhou UniversityChina 55.026.7%8.4×27 +59.1%
9 Beijing Institute of TechnologyChina 54.542.4%4.7×21 +139.8%
10 The University of Texas at AustinUnited States 52.845.6%4.4×14 +159.7%

Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.

Is Thermal Expansion and Ionic Conductivity research growing?

Output in 2018–2022 was 54% higher than in 2013–2017, peaking in 2026. The fastest-growing topics are Thermal Expansion and Ionic Conductivity.

19801990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.