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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 53 9159 8844 2223 2062 133 11390

D. J. Plazek publications per year

The chart shows the history of publications by D. J. Plazek between 1956 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. D. J. Plazek published across 69 years, from 1956 to 2024, averaging 2.1 papers a year. Output peaked at 10 publications in 1991. 1 of the 145 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1956 to 2024. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 1991. 1956: 1 publication 1957: 0 publications 1958: 2 publications 1959: 0 publications 1960: 1 publication 1961: 2 publications 1962: 1 publication 1963: 1 publication 1964: 1 publication 1965: 3 publications 1966: 7 publications 1967: 3 publications 1968: 2 publications 1969: 0 publications 1970: 0 publications 1971: 1 publication 1972: 0 publications 1973: 0 publications 1974: 1 publication 1975: 2 publications 1976: 0 publications 1977: 2 publications 1978: 1 publication 1979: 4 publications 1980: 4 publications 1981: 0 publications 1982: 5 publications 1983: 2 publications 1984: 2 publications 1985: 4 publications 1986: 7 publications 1987: 2 publications 1988: 4 publications 1989: 4 publications 1990: 2 publications 1991: 10 publications 1992: 4 publications 1993: 3 publications 1994: 3 publications 1995: 5 publications 1996: 3 publications 1997: 10 publications 1998: 2 publications 1999: 3 publications 2000: 4 publications 2001: 4 publications 2002: 6 publications 2003: 2 publications 2004: 2 publications 2005: 1 publication 2006: 1 publication 2007: 3 publications 2008: 1 publication 2009: 1 publication 2010: 1 publication 2011: 0 publications 2012: 0 publications 2013: 1 publication 2014: 1 publication 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 1 publication 2021: 1 publication 2022: 0 publications 2023: 0 publications 2024: 1 publication
1956 2024

145 publications in total across all disciplines

View publications per year as a table
D. J. Plazek: publications per year, 1956 to 2024
Year Publications
1956 1
1957 0
1958 2
1959 0
1960 1
1961 2
1962 1
1963 1
1964 1
1965 3
1966 7
1967 3
1968 2
1969 0
1970 0
1971 1
1972 0
1973 0
1974 1
1975 2
1976 0
1977 2
1978 1
1979 4
1980 4
1981 0
1982 5
1983 2
1984 2
1985 4
1986 7
1987 2
1988 4
1989 4
1990 2
1991 10
1992 4
1993 3
1994 3
1995 5
1996 3
1997 10
1998 2
1999 3
2000 4
2001 4
2002 6
2003 2
2004 2
2005 1
2006 1
2007 3
2008 1
2009 1
2010 1
2011 0
2012 0
2013 1
2014 1
2015 0
2016 0
2017 0
2018 0
2019 0
2020 1
2021 1
2022 0
2023 0
2024 1
Total 145
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D. J. Plazek publications per year - data summary

  • D. J. Plazek, a Materials Science scholar from University of Pittsburgh, has 145 publications recorded across 69 years, from 1956 to 2024.
  • The oldest publication on record dates to 1956 and the most recent to 2024.
  • The most productive years are 1991 and 1997, with 10 publications each.
  • The least productive years with any output are 1956, 1960, 1962, 1963 and others, with 1 publication each.
  • 17 of the 69 years in the span carry no publications at all (1957, 1959, 1969, 1970 and others).
  • The rate of publication averages 2.1 papers per year over the whole span, or 2.8 per year counting only the 52 years with at least one publication.
  • The last 5 years on the chart (2020-2024) hold 3 publications, 2% of the career total.
  • Split into equal eras - 1956-1978: 31 publications (1.3 per year); 1979-2001: 91 publications (4.0 per year); 2002-2024: 23 publications (1.0 per year).
  • Comparing the opening and closing eras, the overall trend of publication is declining.

D. J. Plazek 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 D. J. Plazek 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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D. J. Plazek 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.
  • D. J. Plazek, a Materials Science scholar from University of Pittsburgh, records 133 publications - the 9th percentile of the discipline.
  • 9% of ranked Materials Science scientists score the same or lower than D. J. Plazek, and about 91% score higher.
  • The median of the discipline falls in the 250–269 publications range, and D. J. Plazek 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).

D. J. Plazek 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 D. J. Plazek 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, 52–53 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: 53 D-Index — 30th percentile

30% 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
44–45 612
46–47 612
48–49 598
50–51 657
52–53 667 53
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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D. J. Plazek 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.
  • D. J. Plazek, a Materials Science scholar from University of Pittsburgh, records 53 D-Index - the 30th percentile of the discipline.
  • 30% of ranked Materials Science scientists score the same or lower than D. J. Plazek, and about 70% score higher.
  • The median of the discipline falls in the 62–63 D-Index range, and D. J. Plazek 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).

Best Publications

  • Correlation of polymer segmental chain dynamics with temperature-dependent time-scale shifts

    Donald J. Plazek;Kia L. Ngai

  • Identification of Different Modes of Molecular Motion in Polymers That Cause Thermorheological Complexity

    K. L. Ngai;D. J. Plazek

  • Physical Properties of Aromatic Hydrocarbons. I. Viscous and Viscoelastic Behavior of 1:3:5‐Tri‐α‐Naphthyl Benzene

    Donald J. Plazek;Joseph H. Magill

  • Volume and enthalpy recovery of polystyrene

    S.L. Simon;J.W. Sobieski;D.J. Plazek

  • Temperature dependence of the viscoelastic behavior of polystyrene.

    Unknown

  • Viscoelastic properties of polymers. 4. Thermorheological complexity of the softening dispersion in polyisobutylene

    D. J. Plazek;I.-C. Chay;K. L. Ngai;C. M. Roland

  • 1995 BINGHAM MEDAL ADDRESS : OH, THERMORHEOLOGICAL SIMPLICITY, WHEREFORE ART THOU ?

    Donald J. Plazek

  • A study of the linear viscoelastic properties of cyclic polystyrenes using creep and recovery measurements

    G. B. McKenna;B. J. Hostetter;N. Hadjichristidis;L. J. Fetters

  • Viscoelastic behavior of low molecular weight polystyrene

    Unknown

  • Epoxy resins (DGEBA): The curing and physical aging process

    D. J. Plazek;Z. N. Frund

  • The Temperature Dependence of the Viscoelastic Behavior of Poly(vinyl acetate)

    Donald J Plazek

  • Physical aging of a polyetherimide: Volume recovery and its comparison to creep and enthalpy measurements

    Sindee L. Simon;Donald J. Plazek;J. William Sobieski;Eric T. McGregor

  • Couplings between the cooperatively rearranging regions of the Adam–Gibbs theory of relaxations in glass‐forming liquids

    K. L. Ngai;R. W. Rendell;D. J. Plazek

  • The physical properties of bisphenol-A-based epoxy resins during and after curing†

    In-Chul Choy;Donald J. Plazek

  • A quantitative explanation of the difference in the temperature dependences of the viscoelastic softening and terminal dispersions of linear amorphous polymers

    K. L. Ngai;D. J. Plazek

  • Some examples of possible descriptions of dynamic properties of polymers by means of the coupling model

    Kai L. Ngai;Donald J. Plazek;Ronald W. Rendell

  • Viscoelastic behavior of atactic polypropylene

    Daniel L. Plazek;Donald J. Plazek

  • Physical Properties of Aromatic Hydrocarbons. II. Solidification Behavior of 1,3,5‐Tri‐α‐Naphthylbenzene

    Unknown

  • The Frequency and Temperature Dependence of the Dynamic Mechanical Properties of a High Density Polyethylene

    Unknown

  • Magnetic bearing torsional creep apparatus

    Unknown

Frequent Co-Authors

K. L. Ngai
K. L. Ngai University of Pisa
Albert F. Yee
Albert F. Yee University of California, Irvine

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