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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 42 12541 12130 514 494 133 7140

Peter J. Barham publications per year

The chart shows the history of publications by Peter J. Barham between 1974 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Peter J. Barham published across 53 years, from 1974 to 2026, averaging 4.6 papers a year. Output peaked at 53 publications in 2025. 54 of the 245 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1974 to 2026. Vertical axis: number of publications, 0 to 53. Peak 53 publications in 2025. 1974: 1 publication 1975: 1 publication 1976: 2 publications 1977: 3 publications 1978: 3 publications 1979: 2 publications 1980: 6 publications 1981: 4 publications 1982: 6 publications 1983: 2 publications 1984: 3 publications 1985: 4 publications 1986: 5 publications 1987: 3 publications 1988: 1 publication 1989: 7 publications 1990: 8 publications 1991: 4 publications 1992: 8 publications 1993: 7 publications 1994: 8 publications 1995: 7 publications 1996: 4 publications 1997: 8 publications 1998: 4 publications 1999: 7 publications 2000: 7 publications 2001: 9 publications 2002: 0 publications 2003: 2 publications 2004: 7 publications 2005: 1 publication 2006: 4 publications 2007: 4 publications 2008: 2 publications 2009: 0 publications 2010: 6 publications 2011: 4 publications 2012: 3 publications 2013: 2 publications 2014: 2 publications 2015: 0 publications 2016: 1 publication 2017: 1 publication 2018: 1 publication 2019: 0 publications 2020: 0 publications 2021: 2 publications 2022: 7 publications 2023: 2 publications 2024: 6 publications 2025: 53 publications 2026: 1 publication
1974 2026

245 publications in total across all disciplines

View publications per year as a table
Peter J. Barham: publications per year, 1974 to 2026
Year Publications
1974 1
1975 1
1976 2
1977 3
1978 3
1979 2
1980 6
1981 4
1982 6
1983 2
1984 3
1985 4
1986 5
1987 3
1988 1
1989 7
1990 8
1991 4
1992 8
1993 7
1994 8
1995 7
1996 4
1997 8
1998 4
1999 7
2000 7
2001 9
2002 0
2003 2
2004 7
2005 1
2006 4
2007 4
2008 2
2009 0
2010 6
2011 4
2012 3
2013 2
2014 2
2015 0
2016 1
2017 1
2018 1
2019 0
2020 0
2021 2
2022 7
2023 2
2024 6
2025 53
2026 1
Total 245
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Peter J. Barham publications per year - data summary

  • Peter J. Barham, a Materials Science scholar from University of Bristol, has 245 publications recorded across 53 years, from 1974 to 2026.
  • The oldest publication on record dates to 1974 and the most recent to 2026.
  • The most productive year is 2025, with 53 publications.
  • The least productive years with any output are 1974, 1975, 1988, 2005 and others, with 1 publication each.
  • 5 of the 53 years in the span carry no publications at all (2002, 2009, 2015, 2019 and others).
  • The rate of publication averages 4.6 papers per year over the whole span, or 5.1 per year counting only the 48 years with at least one publication.
  • The last 5 years on the chart (2022-2026) hold 69 publications, 28% of the career total.
  • Split into equal eras - 1974-1991: 65 publications (3.6 per year); 1992-2009: 89 publications (4.9 per year); 2010-2026: 91 publications (5.4 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Peter J. Barham publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Peter J. Barham sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 57 bars. Horizontal axis: publications, 50–69 to 1,163+. Vertical axis: number of scientists, 0 to 891. Most scientists, 891, have 190–209 publications. The last bar groups every scientist with 1,163 publications or more. The highlighted bar, 130–149 publications, is where this scientist sits. 50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50–69 publications 1,163+

This scientist: 133 publications — 9th percentile

9% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

View publications distribution as a table
Number of Materials Science scientists by publication count, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
Publications Scientists This scientist
50–69 28
70–89 152
90–109 356
110–129 487
130–149 723 133
150–169 835
170–189 850
190–209 891
210–229 862
230–249 766
250–269 726
270–289 665
290–309 593
310–329 537
330–349 477
350–369 440
370–389 356
390–409 321
410–429 256
430–449 246
450–469 216
470–489 212
490–509 174
510–529 194
530–549 162
550–569 131
570–589 111
590–609 103
610–629 99
630–649 77
650–669 92
670–689 56
690–709 53
710–729 53
730–749 38
750–769 52
770–789 43
790–809 38
810–829 34
830–849 25
850–869 18
870–889 20
890–909 24
910–929 27
930–949 20
950–969 17
970–989 10
990–1,009 16
1,010–1,029 13
1,030–1,049 12
1,050–1,069 9
1,070–1,089 8
1,090–1,109 7
1,110–1,129 9
1,130–1,149 2
1,150–1,162 5
1,163+ 100
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Peter J. Barham publication distribution in Materials Science in 2026 - data summary

  • The chart plots the publication count of all 12,847 Materials Science scientists ranked by Research.com in 2026, grouped into 57 ranges running from 50–69 to 1,163+ publications.
  • Peter J. Barham, a Materials Science scholar from University of Bristol, records 133 publications - the 9th percentile of the discipline.
  • 9% of ranked Materials Science scientists score the same or lower than Peter J. Barham, and about 91% score higher.
  • The median of the discipline falls in the 250–269 publications range, and Peter J. Barham ranks below the median.
  • The most crowded range is 190–209 publications, holding 891 scientists (7% of the field).
  • 70% of the field sits in the lowest quarter of the value range (up to 330–349 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 1,163 publications or more, 100 scientists in all (<1% of the field).

Peter J. Barham D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where Peter J. Barham sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 64 bars. Horizontal axis: D-Index, 40–41 to 165+. Vertical axis: number of scientists, 0 to 667. Most scientists, 667, have 52–53 D-Index. The last bar groups every scientist with 165 D-Index or more. The highlighted bar, 42–43 D-Index, is where this scientist sits. 40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40–41 D-Index 165+

This scientist: 42 D-Index — 3rd percentile

3% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

View D-Index distribution as a table
Number of Materials Science scientists by D-index, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
D-Index Scientists This scientist
40–41 211
42–43 450 42
44–45 612
46–47 612
48–49 598
50–51 657
52–53 667
54–55 621
56–57 597
58–59 610
60–61 587
62–63 606
64–65 533
66–67 490
68–69 469
70–71 378
72–73 421
74–75 359
76–77 323
78–79 299
80–81 230
82–83 210
84–85 195
86–87 203
88–89 175
90–91 175
92–93 142
94–95 121
96–97 117
98–99 107
100–101 88
102–103 85
104–105 68
106–107 62
108–109 57
110–111 45
112–113 49
114–115 50
116–117 34
118–119 38
120–121 37
122–123 29
124–125 28
126–127 24
128–129 33
130–131 28
132–133 21
134–135 20
136–137 23
138–139 17
140–141 12
142–143 17
144–145 21
146–147 13
148–149 11
150–151 14
152–153 13
154–155 9
156–157 10
158–159 7
160–161 4
162–163 4
164 3
165+ 98
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Peter J. Barham D-index placement in Materials Science in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 12,847 Materials Science scientists ranked by Research.com in 2026, grouped into 64 ranges running from 40–41 to 165+ D-Index.
  • Peter J. Barham, a Materials Science scholar from University of Bristol, records 42 D-Index - the 3rd percentile of the discipline.
  • 3% of ranked Materials Science scientists score the same or lower than Peter J. Barham, and about 97% score higher.
  • The median of the discipline falls in the 62–63 D-Index range, and Peter J. Barham ranks below the median.
  • The most crowded range is 52–53 D-Index, holding 667 scientists (5% of the field).
  • 68% of the field sits in the lowest quarter of the value range (up to 70–71 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 165 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Peter J. Barham is affiliated with the University of Bristol in the United Kingdom. Their research primarily focuses on environmental science with a strong emphasis on ecology, marine and fisheries research, and avian ecology and behavior.

The scientist's work spans several subfields including ecology, global and planetary change, nature and landscape conservation, ecology, evolution, behavior and systematics, and ecological modeling.

Key topics explored in their research include:

  • Avian ecology and behavior
  • Marine and fisheries research
  • Fish ecology and management studies
  • Marine animal studies overview
  • Animal behavior and reproduction
  • Plant and animal studies
  • Coral and marine ecosystems studies

Peter J. Barham has published studies in a variety of scientific journals. Frequent venues for their publications include:

  • Ostrich
  • Biodiversity Observations
  • Proceedings of the Royal Society B Biological Sciences
  • Ecology and Evolution
  • ICES Journal of Marine Science

Recent papers authored or co-authored by Peter J. Barham cover topics related to African penguins, marine predator demographics, and fishery impacts. Selected recent publications are:

  • Correction to 'Bayesian inference reveals positive but subtle effects of experimental fishery closures on marine predator demographics', 2021, Proceedings of the Royal Society B Biological Sciences
  • Intercolony variation in reproductive skipping in the African penguin, 2022, Ecology and Evolution
  • Commercial fishery no-take zones for African penguins minimize fisheries losses at the expense of conservation gains, 2024, ICES Journal of Marine Science
  • Decades of artificial nests towards African penguin conservation-Have they made a difference?, 2024, Ecological Solutions and Evidence
  • Preliminary investigation into deducing breeding success of African Penguins Spheniscus demersus from automated transponder reader data to reduce disturbance, 2023, Ostrich

The scientist has collaborated frequently with a group of co-authors. Notable frequent collaborators include:

  • Richard B. Sherley
  • Katrin Ludynia
  • Lauren J. Waller
  • Barbara J. Barham
  • Alistair McInnes

Best Publications

  • Crystallization and morphology of a bacterial thermoplastic: poly-3-hydroxybutyrate

    P. J. Barham;A. Keller;E. L. Otun;P. A. Holmes

  • The relationship between microstructure and mode of fracture in polyhydroxybutyrate

    P. J. Barham;A. Keller

  • Molecular Gastronomy: A New Emerging Scientific Discipline

    Peter Barham;Leif H. Skibsted;Wender L. P. Bredie;Michael Bom Frøst

  • An approach to the formation and growth of new phases with application to polymer crystallization: effect of finite size, metastability, and Ostwald's rule of stages

    A Keller;M Hikosaka;S Sanjay Rastogi;A Toda

  • High-strength polyethylene fibres from solution and gel spinning

    P. J. Barham;A. Keller

  • Nucleation behaviour of poly-3-hydroxy-butyrate

    P. J. Barham

  • 3-Hydroxybutyric acid polymers

    Peter John Barham;Paul Arthur Holmes

  • Crystallization and Morphology of Poly(β-hydroxybutyrate) and Its Copolymer

    Hiroshi Mitomo;Peter J Barham;Andrew Keller

  • Direct observations of the growth of spherulites of poly(hydroxybutyrate-co-valerate) using atomic force microscopy

    JK Hobbs;Terence J McMaster;Mervyn J Miles;PJ Barham

  • A new look at the crystallization of polyethylene. III. Crystallization from the melt at high supercoolings

    P. J. Barham;D. A. Jarvis;A. Keller

  • The supercooling dependence of the initial fold length of polyethylene crystallized from the melt: unification of melt and solution crystallization

    P. J. Barham;R. A. Chivers;A. Keller;J. Martinez-Salazar

  • A study on the achievement of high-modulus polyethylene fibres by drawing

    P. J. Barham;A. Keller

  • Phase segregation in melts of blends of linear and branched polyethylene

    M.J. Hill;P.J. Barham;A. Keller;C.C.A. Rosney

  • Phase segregation in blends of linear with branched polyethylene: the effect of varying the molecular weight of the linear polymer

    M.J Hill;P.J Barham;A Keller

  • A neutron scattering study of the melting behaviour of polyethylene single crystals

    Peter J. Barham;David M. Sadler

  • Phase separation in polyethylene melts

    P. J. Barham;M. J. Hill;A. Keller;C. C. A. Rosney

  • Structure of drawn fibres: 1. Neutron scattering studies of necking in melt-crystallized polyethylene

    D.M. Sadler;P.J. Barham

  • NUCLEATION, GROWTH AND MORPHOLOGY OF POLY(HYDROXYBUTYRATE) AND ITS COPOLYMERS

    S. J. Organ;P. J. Barham

  • Physical properties of poly(hydroxybutyrate) and copolymers of hydroxybutyrate and hydroxyvalerate

    Peter J. Barham;Phil Barker;Sally J. Organ

  • On the origin of the multiple endotherms in PEEK

    M.P. Lattimer;J.K. Hobbs;M.J. Hill;P.J. Barham

Frequent Co-Authors

Andrew Keller
Andrew Keller University of Bristol
Innes C. Cuthill
Innes C. Cuthill University of Bristol
Robert J. M. Crawford
Robert J. M. Crawford University of Cape Town
Sanjay Rastogi
Sanjay Rastogi King Abdullah University of Science and Technology
Mervyn J Miles
Mervyn J Miles University of Bristol
Stephen C. Votier
Stephen C. Votier Heriot-Watt University
Dieter Seebach
Dieter Seebach ETH Zurich
Hiroshi Mitomo
Hiroshi Mitomo Gunma University
Res Altwegg
Res Altwegg University of Cape Town
Leif H. Skibsted
Leif H. Skibsted University of Copenhagen

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