Journal rankings · indicator year 2020
Choose a field to open its ranking, or a journal to find its row in its subfield’s list.
Subfield ranking · 2020
General Materials Science journal rankings 2020
0 ranked journals · Subfield in Materials Science
No General Materials Science journals meet eligibility for 2020, so this year has no ranking. Browse Materials Science rankings.
Ranks and citation indicators: 2020. Journal access status and listed APC: source snapshot September 23, 2026.
Subfields of Materials Science (8)
0 ranked journals
Filters
Subfields of Materials Science, with General Materials Science highlighted.
- Materials Chemistry332
- Polymers and Plastics87
- Biomaterials31
- Electronic, Optical and Magnetic Materials15
- Ceramics and Composites7
- Surfaces, Coatings and Films4
- General Materials Science0
- Metals and Alloys0
Journals
Citations made in 2020. Corpus-wide, 86.1% of core-journal articles and reviews published that year have at least one matched reference; the share varies by journal and field.
1 additional General Materials Science journal with metrics is unranked under this release’s eligibility rules: a journal needs at least 30 citable documents in 2017–2019, at least 80% of them with a subfield, and a positive world-average expectation. Ranks are within the whole category; filters hide rows without re-ranking. OJR excludes self-citations.
At a glance
Indicator year: 2020. Publication window: 2017–2019. How these summaries are calculated
- Ranked journals
- 0
- Window papers (baseline)
- 10,358 +9.9% from indicator year 2017
- Median OJR
- — Change unavailable from indicator year 2017
- Rising journals (2025)
- 0
Window papers are the baseline paper population: citable papers (articles, reviews and conference papers) from 2017–2019 in all journals of the world-average baseline, including non-core journals, counted by each paper’s own subfield. They are not the papers of the ranked journals alone.
| Measure | Year series | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ranked journals | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Window papers (baseline) | 4,735 | 4,926 | 5,179 | 5,411 | 5,500 | 5,627 | 5,728 | 5,747 | 5,712 | 5,900 | 6,316 | 6,700 | 7,186 | 7,448 | 7,935 | 8,544 | 9,127 | 9,424 | 9,428 | 9,748 | 10,358 | 10,761 | 10,993 | 10,331 | 9,659 | 9,129 | |
| Median OJR | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.76 | 0.97 | 1.23 | — | — | — | — | — | — | — | — | — | — |
How to read these rankings
- OJR, the OpenJournalRank Indicator
- A field-normalized 3-year citation impact, computed from OpenAlex with the NCI3 method. It divides the citations a journal’s papers received by the world average for papers of the same subfield, year and type, so 1.00 is the world average and 2.00 means twice as many citations as expected. Because it is normalized, it can be compared across fields. Read the methodology
- Quartiles
- Q1 to Q4 split the ranked journals of the list you are viewing into four equal groups by OJR. A journal’s quartile depends on the list: the same journal can be Q1 in its subfield and Q2 among all journals.
- Impact factor (2-year)
- Citations per paper over a two-year window, counted from OpenAlex. It is easy to compare with familiar impact factors but is not field-normalized, so compare it only within a field. It is not Clarivate’s Journal Impact Factor. Why it differs from the Journal Impact Factor
- Rank ranges
- Each rank in the latest year carries a likely range from 1,000 resamples of the journal’s papers. Where two journals’ ranges overlap, the data cannot tell them apart, so treat neighbouring ranks as ties.