Profile Photo
Image
Email
Telephone
Affiliate Researcher
Titles and Affiliations
Senior Associate Dean for Graduate Education and Research, College of Earth & Mineral Sciences
Professor, Materials Science and Engineering
Research Summary
Development and characterization of materials for gas turbines, advanced propulsion systems, and enhanced oil and natural gas recovery technology, as well as in the design and fabrication of laminated ceramic composites possessing engineered stress statesIn the News
Research Keywords
These keywords and phrases come from the publications and other research output of this person. See other researchers related to these topics by clicking on any keyword.
Recent Publications
A methodology for the accurate measurement of uniaxial compressive creep of refractory ceramics
Longhin, M. E., Shelleman, D. L. & Hellmann, Jr., J. R., Dec 1 2017, In: Measurement: Journal of the International Measurement Confederation. 111, p. 69-83 15 p.Research output: Contribution to journal › Article › peer-review
SiAlON ceramics from preceramic polymers and nano-sized fillers: Application in ceramic joining
Bernardo, E., Parcianello, G., Colombo, P., Adair, J. H., Barnes, A. T., Hellmann, J. R., Jones, B. H., Kruise, J. & Swab, J. J., Jun 2012, In: Journal of the European Ceramic Society. 32, 7, p. 1329-1335 7 p.Research output: Contribution to journal › Article › peer-review
SiAlON-SiC sandwich structures with tailored surface compression
Hoff, K., Green, D. J., Jin, Y., Ryba, E. & Hellmann, J. R., Jan 2012, In: International Journal of Applied Ceramic Technology. 9, 1, p. 91-99 9 p.Research output: Contribution to journal › Article › peer-review
Experimental and finite element analysis of the API RP60 test
Harris, J. T., Segall, A. E., Hellmann, J. R., Scheetz, B. E., Koseski, R. P. & Boyce, J. M., May 1 2011, In: Journal of Testing and Evaluation. 39, 3Research output: Contribution to journal › Article › peer-review
Temperature dependent elastic properties of several commercial glasses
Selverian, J., Johnston, D., Johnson, M. A., Fox, K. M. & Hellmann, J. R., May 31 2010, In: High Temperatures - High Pressures. 39, 1, p. 1-9 9 p.Research output: Contribution to journal › Article › peer-review
Microstructure and creep behavior of silicon nitride and SiAlONs
Fox, K. M. & Hellmann, J. R., Mar 1 2008, In: International Journal of Applied Ceramic Technology. 5, 2, p. 138-154 17 p.Research output: Contribution to journal › Article › peer-review
Correlations between free volume and pile-up behavior in nanoindentation reference glasses
Howell, J. A., Hellmann, J. R. & Muhlstein, C. L., May 15 2008, In: Materials Letters. 62, 14, p. 2140-2142 3 p.Research output: Contribution to journal › Article › peer-review
Nanomechanical properties of commercial float glass
Howell, J. A., Hellmann, J. R. & Muhlstein, C. L., Apr 1 2008, In: Journal of Non-Crystalline Solids. 354, 17, p. 1891-1899 9 p.Research output: Contribution to journal › Article › peer-review
Refinement of the α-phase area in the Yb-SiAlON system
Fox, K. M., Hellmann, J. R., Angelone, M. S. & Yeckley, R. L., May 1 2007, In: Journal of the American Ceramic Society. 90, 5, p. 1607-1610 4 p.Research output: Contribution to journal › Article › peer-review