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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 67 5082 4917 1562 1556 314 17222

Ji-Jung Kai publications per year

The chart shows the history of publications by Ji-Jung Kai between 1986 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ji-Jung Kai published across 41 years, from 1986 to 2026, averaging 9 papers a year. Output peaked at 33 publications in 2021. 20 of the 367 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1986 to 2026. Vertical axis: number of publications, 0 to 33. Peak 33 publications in 2021. 1986: 3 publications 1987: 3 publications 1988: 1 publication 1989: 5 publications 1990: 3 publications 1991: 1 publication 1992: 3 publications 1993: 7 publications 1994: 7 publications 1995: 2 publications 1996: 1 publication 1997: 3 publications 1998: 6 publications 1999: 6 publications 2000: 7 publications 2001: 16 publications 2002: 8 publications 2003: 8 publications 2004: 11 publications 2005: 15 publications 2006: 9 publications 2007: 13 publications 2008: 13 publications 2009: 8 publications 2010: 6 publications 2011: 1 publication 2012: 10 publications 2013: 8 publications 2014: 10 publications 2015: 4 publications 2016: 2 publications 2017: 5 publications 2018: 20 publications 2019: 15 publications 2020: 26 publications 2021: 33 publications 2022: 22 publications 2023: 15 publications 2024: 11 publications 2025: 19 publications 2026: 1 publication
1986 2026

367 publications in total across all disciplines

View publications per year as a table
Ji-Jung Kai: publications per year, 1986 to 2026
Year Publications
1986 3
1987 3
1988 1
1989 5
1990 3
1991 1
1992 3
1993 7
1994 7
1995 2
1996 1
1997 3
1998 6
1999 6
2000 7
2001 16
2002 8
2003 8
2004 11
2005 15
2006 9
2007 13
2008 13
2009 8
2010 6
2011 1
2012 10
2013 8
2014 10
2015 4
2016 2
2017 5
2018 20
2019 15
2020 26
2021 33
2022 22
2023 15
2024 11
2025 19
2026 1
Total 367
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Ji-Jung Kai 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 Ji-Jung Kai 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, 310–329 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: 314 publications — 63rd percentile

63% 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
150–169 835
170–189 850
190–209 891
210–229 862
230–249 766
250–269 726
270–289 665
290–309 593
310–329 537 314
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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Ji-Jung Kai 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 Ji-Jung Kai 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, 66–67 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: 67 D-Index — 61st percentile

61% 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
54–55 621
56–57 597
58–59 610
60–61 587
62–63 606
64–65 533
66–67 490 67
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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Overview

Ji-Jung Kai is affiliated with the City University of Hong Kong in China. Their research primarily spans the fields of Engineering and Materials Science, with a significant focus on several specialized subfields and main topics.

The main fields of study covered by Ji-Jung Kai include:

  • Engineering
  • Materials Science

Within these fields, the scientist's work extends to notable subfields such as:

  • Mechanical Engineering
  • Aerospace Engineering
  • Materials Chemistry
  • Biomedical Engineering
  • Renewable Energy, Sustainability and the Environment

Ji-Jung Kai's primary research focuses on topics including:

  • High Entropy Alloys Studies
  • High-Temperature Coating Behaviors
  • Additive Manufacturing Materials and Processes
  • Advanced Materials Characterization Techniques
  • Advanced materials and composites
  • High Temperature Alloys and Creep
  • Nuclear Materials and Properties

The scientist has contributed to several recent papers, notable examples are:

  • "Ultrahigh-strength and ductile superlattice alloys with nanoscale disordered interfaces" (2020), published in Science
  • "A Novel Multinary Intermetallic as an Active Electrocatalyst for Hydrogen Evolution" (2020), published in Advanced Materials
  • "Superior high-temperature properties and deformation-induced planar faults in a novel L12-strengthened high-entropy alloy" (2020), published in Acta Materialia
  • "Control of nanoscale precipitation and elimination of intermediate-temperature embrittlement in multicomponent high-entropy alloys" (2020), published in Acta Materialia
  • "Rugged High-Entropy Alloy Nanowires with in Situ Formed Surface Spinel Oxide As Highly Stable Electrocatalyst in Zn-Air Batteries" (2020), published in ACS Materials Letters

Frequent coauthors collaborating with Ji-Jung Kai include:

  • Tao Yang
  • Yilu Zhao
  • Shaofei Liu
  • Da Chen
  • Shijun Zhao

The scientist has published extensively in several key venues, with the most frequent publication outlets being:

  • SSRN Electronic Journal
  • Acta Materialia
  • Journal of Alloys and Compounds
  • Journal of Nuclear Materials
  • Corrosion Science

Best Publications

  • Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys

    T. Yang;Y. L. Zhao;Y. Tong;Z. B. Jiao

  • Heterogeneous precipitation behavior and stacking-fault-mediated deformation in a CoCrNi-based medium-entropy alloy

    Y. L. Zhao;T. Yang;Y. Tong;J. Wang

  • Outstanding tensile properties of a precipitation-strengthened FeCoNiCrTi0.2 high-entropy alloy at room and cryogenic temperatures

    Y. Tong;D. Chen;B. Han;B. Han;J. Wang

  • Low-resistance ohmic contacts to p-type GaN achieved by the oxidation of Ni/Au films

    Jin-Kuo Ho;Charng-Shyang Jong;Chien C. Chiu;Chao-Nien Huang

  • Ultrahigh-strength and ductile superlattice alloys with nanoscale disordered interfaces.

    T Yang;Y. L. Zhao;WP Li;CY Yu

  • A Novel Multinary Intermetallic as an Active Electrocatalyst for Hydrogen Evolution.

    Zhe Jia;Zhe Jia;Tao Yang;Ligang Sun;Ligang Sun;Yilu Zhao

  • The origin of negative stacking fault energies and nano-twin formation in face-centered cubic high entropy alloys

    Y.H. Zhang;Y. Zhuang;A. Hu;J.J. Kai

  • Design of D022 superlattice with superior strengthening effect in high entropy alloys

    Feng He;Feng He;Da Chen;Bin Han;Qingfeng Wu

  • Nanoparticles-strengthened high-entropy alloys for cryogenic applications showing an exceptional strength-ductility synergy

    T. Yang;Y.L. Zhao;J.H. Luan;B. Han

  • Superior high-temperature properties and deformation-induced planar faults in a novel L12-strengthened high-entropy alloy

    Y.L. Zhao;T. Yang;Y.R. Li;L. Fan

  • Production and in‐situ Metal Filling of Carbon Nanotubes in Water

    Yu Lin Hsin;Kuo Chu Hwang;Fu-Rong Chen;Ji-Jung Kai

  • Development of high-strength Co-free high-entropy alloys hardened by nanosized precipitates

    Y.L. Zhao;T. Yang;J.H. Zhu;D. Chen

  • Control of nanoscale precipitation and elimination of intermediate-temperature embrittlement in multicomponent high-entropy alloys

    T. Yang;Y.L. Zhao;L. Fan;J. Wei;J. Wei

  • Rugged High-Entropy Alloy Nanowires with in Situ Formed Surface Spinel Oxide As Highly Stable Electrocatalyst in Zn–Air Batteries

    Zeyu Jin;Juan Lyu;Yi-Lu Zhao;Huanglong Li

  • Air-oxidation of FeCoNiCr-based quinary high-entropy alloys at 700–900 °C

    Wu Kai;C.C. Li;F.P. Cheng;K.P. Chu

  • The oxidation behavior of an equimolar FeCoNiCrMn high-entropy alloy at 950 °C in various oxygen-containing atmospheres

    W. Kai;C.C. Li;F.P. Cheng;K.P. Chu

  • V2O5 nanowires as a functional material for electrochromic device

    Keng-Che Cheng;Fu-Rong Chen;Ji-Jung Kai

  • Designing nanoparticles-strengthened high-entropy alloys with simultaneously enhanced strength-ductility synergy at both room and elevated temperatures

    Unknown

  • Effect of moisture on corrosion of Ni-based alloys in molten alkali fluoride FLiNaK salt environments

    Fan-Yi Ouyang;Chi-Hung Chang;Bo-Chien You;Tsung-Kuang Yeh

  • The effects of heat treatment on the chromium depletion, precipitate evolution, and corrosion resistance of INCONEL alloy 690

    J. J. Kai;G. P. Yu;C. H. Tsai;M. N. Liu

  • Enhancement of ferromagnetic properties in Zn1−xCoxO by additional Cu doping

    Hung-Ta Lin;Tsung-Shune Chin;Jhy-Chau Shih;Show-Hau Lin

Frequent Co-Authors

Fu-Rong Chen
Fu-Rong Chen City University of Hong Kong
C.T. Liu
C.T. Liu City University of Hong Kong
J.H. Luan
J.H. Luan City University of Hong Kong
Yang Lu
Yang Lu University of Hong Kong
Z.B. Jiao
Z.B. Jiao Hong Kong Polytechnic University
Peter K. Liaw
Peter K. Liaw University of Tennessee at Knoxville
Jian Lu
Jian Lu City University of Hong Kong
Yutai Katoh
Yutai Katoh Oak Ridge National Laboratory
Lian-Mao Peng
Lian-Mao Peng Peking University
Yong Yang
Yong Yang City University of Hong Kong

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