Subfield · Surfaces, Coatings and Films
Top Countries in Surfaces, Coatings and Films Research
China ranks first in 2022–2025, out of 19 ranked countries.
Composite score: field-normalised excellence, output and total citations weighted 50 / 30 / 20, each as a percentile so no single heavy-tailed measure dominates. Floor: 100 fractional works in this field.
Ranked by research quality, 2022–2025
| # | Country | Score | Top-10% rate | Works | Citations | All time |
|---|---|---|---|---|---|---|
| 1 | China | 100.0 | 21.8% | 8k | 106k | #2 |
| 2 | United States | 76.5 | 12.3% | 2.6k | 19k | #1 |
| 3 | India | 62.7 | 12.7% | 886 | 6.4k | #13 |
| 4 | United Kingdom | 52.9 | 16.2% | 548 | 5k | #4 |
| 5 | Germany | 45.3 | 10.5% | 1k | 6.5k | #3 |
| 6 | Japan | 39.1 | 6.3% | 1k | 4.8k | #6 |
| 7 | Canada | 33.9 | 16.4% | 379 | 3.9k | #7 |
| 8 | South Korea | 29.4 | 12.6% | 644 | 5.6k | #11 |
| 9 | France | 25.4 | 9.3% | 679 | 3.9k | #5 |
| 10 | Iran | 21.8 | 18.6% | 294 | 3.2k | #20 |
| 11 | Australia | 18.6 | 20.3% | 234 | 2.7k | #8 |
| 12 | ?? | 15.6 | 19.2% | 214 | 2.4k | #19 |
| 13 | Italy | 12.9 | 12.5% | 320 | 2.4k | #12 |
| 14 | Spain | 10.4 | 13.6% | 246 | 1.9k | #15 |
| 15 | Netherlands | 8.0 | 15.6% | 211 | 1.8k | #9 |
| 16 | Russia | 5.8 | 4.0% | 584 | 1.9k | #17 |
| 17 | Taiwan | 3.8 | 8.2% | 232 | 1.7k | #21 |
| 18 | Poland | 1.8 | 12.0% | 204 | 1.6k | #26 |
| 19 | Türkiye | 0.0 | 10.2% | 207 | 1.3k | #28 |
countries ranked worldwide in Surfaces, Coatings and Films (19). rank on the composite score within the stated pool. The score track runs 0 to 100; the rate track carries no world mark, because the world rate differs by field.
How spread out this pool is
Every row above on one axis — one tick each, right is a higher score. A field where the top few are far clear of everyone and one that runs down evenly look identical as a table.
One bar per band of score, counting the rows on this page.
Ranked by volume, 2022–2025
- 1 China 8k works
- 2 United States 2.6k works
- 3 Japan 1k works
- 4 Germany 1k works
- 5 India 886 works
- 6 France 679 works
- 7 South Korea 644 works
- 8 Russia 584 works
- 9 United Kingdom 548 works
- 10 Canada 379 works
- 11 Italy 320 works
- 12 Iran 294 works