John R. Hellmann

903 total citations
33 papers, 703 citations indexed

About

John R. Hellmann is a scholar working on Ceramics and Composites, Mechanical Engineering and Materials Chemistry. According to data from OpenAlex, John R. Hellmann has authored 33 papers receiving a total of 703 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Ceramics and Composites, 20 papers in Mechanical Engineering and 12 papers in Materials Chemistry. Recurrent topics in John R. Hellmann's work include Advanced ceramic materials synthesis (17 papers), Advanced materials and composites (10 papers) and Nuclear materials and radiation effects (6 papers). John R. Hellmann is often cited by papers focused on Advanced ceramic materials synthesis (17 papers), Advanced materials and composites (10 papers) and Nuclear materials and radiation effects (6 papers). John R. Hellmann collaborates with scholars based in United States, Italy and Belgium. John R. Hellmann's co-authors include Paolo Colombo, David L. Shelleman, V. S. STUBIČAN, Carlo G. Pantano, Terry A. Michalské, David J. Green, Bernard Mahieu, Kevin Fox, D. A. Koss and Ming‐Jen Pan and has published in prestigious journals such as Carbon, Journal of the American Ceramic Society and Scripta Materialia.

In The Last Decade

John R. Hellmann

31 papers receiving 683 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
John R. Hellmann United States 13 414 340 322 85 83 33 703
Jian Jiao China 16 422 1.0× 306 0.9× 334 1.0× 87 1.0× 70 0.8× 59 771
J.B. Davis United States 13 517 1.2× 383 1.1× 410 1.3× 109 1.3× 138 1.7× 25 801
Zenji Kato Japan 19 345 0.8× 298 0.9× 417 1.3× 104 1.2× 55 0.7× 45 801
Liangfa Hu United States 15 337 0.8× 355 1.0× 443 1.4× 98 1.2× 34 0.4× 19 751
Ye Gao China 15 215 0.5× 340 1.0× 253 0.8× 116 1.4× 138 1.7× 36 652
Oludele O. Popoola United States 15 133 0.3× 209 0.6× 266 0.8× 64 0.8× 114 1.4× 38 690
Byung-Koog Jang Japan 18 437 1.1× 326 1.0× 517 1.6× 80 0.9× 133 1.6× 58 838
Ronald G. Munro United States 4 317 0.8× 347 1.0× 326 1.0× 81 1.0× 153 1.8× 6 730
Daniel J. Shanefield United States 11 208 0.5× 226 0.7× 353 1.1× 152 1.8× 93 1.1× 28 675

Countries citing papers authored by John R. Hellmann

Since Specialization
Citations

This map shows the geographic impact of John R. Hellmann's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John R. Hellmann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John R. Hellmann more than expected).

Fields of papers citing papers by John R. Hellmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John R. Hellmann. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John R. Hellmann. The network helps show where John R. Hellmann may publish in the future.

Co-authorship network of co-authors of John R. Hellmann

This figure shows the co-authorship network connecting the top 25 collaborators of John R. Hellmann. A scholar is included among the top collaborators of John R. Hellmann based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John R. Hellmann. John R. Hellmann is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Green, David J., et al.. (2011). SiAlON–SiC Sandwich Structures with Tailored Surface Compression. International Journal of Applied Ceramic Technology. 9(1). 91–99. 2 indexed citations
2.
Fox, Kevin & John R. Hellmann. (2008). Microstructure and Creep Behavior of Silicon Nitride and SiAlONs. International Journal of Applied Ceramic Technology. 5(2). 138–154. 17 indexed citations
3.
Fox, Kevin, et al.. (2007). Refinement of the α‐Phase Area in the Yb‐SiAlON System. Journal of the American Ceramic Society. 90(5). 1607–1610. 2 indexed citations
4.
Hellmann, John R., et al.. (2005). Effect of tin-oxide on the physical properties of soda-lime–silica glass. Journal of Non-Crystalline Solids. 351(6-7). 455–465. 35 indexed citations
5.
Colombo, Paolo & John R. Hellmann. (2002). Ceramic foams from preceramic polymers. Materials Research Innovations. 6(5-6). 260–272. 150 indexed citations
6.
Colombo, Paolo, John R. Hellmann, & David L. Shelleman. (2001). Mechanical Properties of Silicon Oxycarbide Ceramic Foams. Journal of the American Ceramic Society. 84(10). 2245–2251. 135 indexed citations
7.
Green, David J., et al.. (1998). Thermal fatigue resistance of open cell ceramic foams. Journal of the European Ceramic Society. 18(14). 2073–2080. 18 indexed citations
8.
Green, David J., et al.. (1997). Influence of crystal anisotropy on residual stresses in ceramic composites. Scripta Materialia. 36(10). 1095–1100. 4 indexed citations
9.
Green, David J., et al.. (1997). Residual Stresses in Composites with Coated Particles. Journal of Composite Materials. 31(10). 1046–1059. 2 indexed citations
10.
Pan, Ming‐Jen, Patricia Hoffman, David J. Green, & John R. Hellmann. (1997). Elastic Properties and Microcracking Behavior of Particulate Titanium Diboride–Silicon Carbide Composites. Journal of the American Ceramic Society. 80(3). 692–698. 20 indexed citations
11.
Hellmann, John R., et al.. (1994). Effect of Cleaning and Abrasion‐Induced Damage on the Weibull Strength Distribution of Sapphire Fiber. Journal of the American Ceramic Society. 77(8). 2017–2024. 12 indexed citations
12.
Hellmann, John R., et al.. (1994). Solid Solubility and Diffusivity in an Alumina/Zirconia System. MRS Proceedings. 365. 1 indexed citations
13.
14.
Chou, Yeong‐Shyung, et al.. (1994). Fabrication of Continuous‐Fiber‐Reinforced Polycrystalline Oxide Composites via Molten Salt Infiltration. Journal of the American Ceramic Society. 77(5). 1361–1365. 1 indexed citations
15.
Koss, D. A., et al.. (1993). Fiber pushout and interfacial shear in metal-matrix composites. JOM. 45(3). 34–37. 11 indexed citations
16.
Hellmann, John R., et al.. (1992). Oriented microchannel membranes via oxidation of carbon-fiber-reinforced glass composites. Carbon. 30(6). 873–882. 6 indexed citations
17.
Bengisu, Murat, O. T. Inal, & John R. Hellmann. (1990). Effect of Dynamic Compaction on the Retention of Tetragonal Zirconia and Mechanical Properties of Alumina/Zirconia Composites. Journal of the American Ceramic Society. 73(2). 346–351. 7 indexed citations
18.
Michalské, Terry A. & John R. Hellmann. (1988). Strength and Toughness of Continuous‐Alumina‐Fiber‐Reinforced Glass‐Matrix Composites. Journal of the American Ceramic Society. 71(9). 725–731. 28 indexed citations
19.
Hellmann, John R. & V. S. STUBIČAN. (1983). Phase Relations and Ordering in the Systems MgO‐Y 2 O 3 ‐ZrO 2 and CaO‐MgO‐ZrO 2. Journal of the American Ceramic Society. 66(4). 265–267. 29 indexed citations
20.
Hellmann, John R. & V. S. STUBIČAN. (1983). Stable and Metastable Phase Relations in the System ZrO 2 ‐CaO. Journal of the American Ceramic Society. 66(4). 260–264. 66 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Jian Jiao Breakdown of academic impact, for papers by J.B. Davis Breakdown of academic impact, for papers by Zenji Kato Breakdown of academic impact, for papers by Liangfa Hu Breakdown of academic impact, for papers by Ye Gao Breakdown of academic impact, for papers by Oludele O. Popoola Breakdown of academic impact, for papers by Byung-Koog Jang Breakdown of academic impact, for papers by Ronald G. Munro Breakdown of academic impact, for papers by Daniel J. Shanefield
Rankless by CCL
2026