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  • Mars 'Curiosity' has ORNL tech
    OAK RIDGE, Tenn., Aug. 6, 2012 — Editor's note: With the successful landing of the Mars Curiosity probe, we are reprising and updating from last November this feature on ORNL's role in the U.S. space exploration mission.

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  • 2012 Secretary’s Achievement Award
    The 2012 “Secretary’s Achievement Award” was presented by Secretary Chu at DOE Headquarters.  The award was a team award for DOE employees and contractors who together accomplished significant achievements  on behalf of the Department.  Team members were from ORNL, LANL, INL, and DOE who played a significant role in the development and production of the Multi Mission Radioisotope Thermoelectric Generator (MMRTG).  This generator is providing electrical power for the Mars Science Laboratory rover, “Curiosity”.  The ORNL recipients of this award were MSTD’s George Ulrich, Evan Ohriner, Glenn Romanoski, and Jim King.   The Honor Awards are the Department’s highest form of nonmonetary employee recognition.


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Staff

James Gordon Hemrick

Technically Affiliated
Research Staff
Mechanical Properties and Mechanics Group
Materials Science & Technology Division
Oak Ridge National Laboratory
P.O. Box 2008
Oak Ridge, TN 37831-6069
Phone: (865) 776-0758
Fax: (865) 574-6098
email:
hemrickjg@ornl.gov

 

Education:

  • Ph.D., Ceramic Engineering, University of Missouri – Rolla (2001)
    Dissertation:  “Creep Behavior and Physical Characterization of Fusion-Cast Alumina Refractories” (Dr. Robert Moore – advisor)
  • MS, Materials Science and Engineering, Georgia Institute of Technology (1999)
    Thesis:  “Release Characteristics of Stainless Steel Metal Injection Molding in Epoxy Molds Produced by Stereolithography (SLA)” (Dr. Thomas Starr – advisor)
  • BS, Ceramic Engineering (minor in mathematics), University of Missouri – Rolla (1997)

Work Experience:         

  • January 2009 - present, Research Staff Member, Mechanical Properties and Mechanics Group, Material Science and Technology Division, Oak Ridge National Laboratory.                                             
    • Lead Principal Investigator on project sponsored by DOE ITP Program w/ Missouri University of Science and Technology, MinTeq International, Aleris Aluminum, Eastman Chemical, PPG Glass, and Weyerheauser Paper to develop novel refractory materials for high-temperature, high-alkaline environments (five year project managing $3.8M budget and $3M of industrial cost share contribution). This project resulted in the development of spinel and alumino-silcate based gunnable refractory materials that showed improved life times in aluminum furnaces, lime kilns, coal gasification facilities, and other high alkali environments. Developed materials were validated through full-scale industrial trials in actual commercial manufacturing facilities and have been commercially deployed in multiple industrial environments.
    • Principal Investigator on industrial sponsored project to develop new refractory materials and refractory coatings for commercial coal gasification facilities ($300K budget). Successfully developed and demonstrated spinel refractory material and coating system capable of extending lining life times from seven months to multiple years.
    • Principal Investigator on project sponsored by DOE w/ industrial collaborator Lockheed Martin to perform thermo-mechanical characterization of Microtherm insulation material ($390K budget). This project involved the development of new unique testing capabilities to evaluate the thermo-mechanical properties of insulation material to be used for an advanced Stirling radioisotope generator (ASRG) concept for space applications. The testing and evaluation performed under this project is currently being used to qualify Microtherm insulation for use in future space missions.
    • Designed and oversaw testing of candidate metallic and advanced ceramic materials for nuclear fuel cladding applications ($320K budget). This included mechanical testing and analysis of irradiated and unirradiated samples, along with statistical evaluation and finite element modeling of material behavior and lifetime prediction. Results of testing are being used for the qualification of ceramic and composite systems for nuclear applications.
    • Performed high temperature and thermal shock testing and analysis of ultra-high strength concrete materials for use in blast and fire applications. Additionally led project to evaluate the use of ultra-high strength concrete in conjunction with enamel coated high strength rebar for application in nuclear structures. ($200K budget).
  • August 2004 to December 2008, Research Associate, Mechanical Properties and Mechanics Group, Material Science and Technology Division, Oak Ridge National Laboratory                                                                          
    • Principal Investigator on project sponsored by DOE ITP Program w/ West Virginia University and industrial collaboration w/ over 18 metal and refractory companies to develop multifunctional refractory materials for molten metal applications (three year project co-managing $3M budget and $868K of industrial cost share contribution). This project resulted in the development of a composite lining system for the aluminum industry composed of a wear resistant, low wetting hot face material which provided increased corrosion and wear resistance at the metal line backed by a castable refractory which provided improved thermal insulation/secondary containment. Such lining systems were employed by several commercial aluminum companies following completion of the project.
    • Principal Investigator on project sponsored by DOE ITP Program w/ industrial collaboration from Fireline, TCON to determine the technical and economic feasibility of producing nano-scale interpenetrating phase composites (IPC’s) for industrial refractory, vehicle brake, and armor applications ($400K budget). Under this project, new nano-scale materials composed of advanced ceramic and metallic phases were produced through novel processing methods, which possessed improved mechanical properties. Results led to additional funding and collaboration with Fireline along with Youngstown State University.
    • Principal Investigator on project sponsored by DOE w/ industrial collaboration from United Technologies Pratt & Whitney (formerly Boeing) and Rocketdyne Propulsion and Power to perform thermo-mechanical characterization of Min-K TE-1400 insulation material ($450K budget). This project involved the development of unique testing capabilities to evaluate the thermo-mechanical properties of insulation material to be used around radioisotope thermoelectric generators for space applications. The testing and evaluation performed under this project was used to qualify Min-K insulation for use in the power source for the Curiosity Rover that is currently on Mars.
    • Principal Investigator on project sponsor by DOE EERE Program w/ industrial collaborator 3-Tex Inc. to develop carbon-based materials for heat management applications ($75K budget). This project designed and successfully produced woven three-dimensional composite structures composed of graphite fiber, glass fiber, and metallic tubing for use as replacement heat exchangers in micro-turbines and fuel cell vehicles.
  • January 2002 to August 2004, Postdoctoral Fellow, Mechanical Properties and Mechanics Group, Metals and Ceramics Division, Oak Ridge National Laboratory                                                                                    
    • Collaborator, then project lead on efforts sponsored by DOE ITP Program and private industry to identify and develop containment refractory materials for black liquor gasification ($350K budget). These projects resulted in the development of both primary and back up refractory linings for black liquor gasifiers, which improved the lifetime of refractory containment linings used in these units from two months to three years. A US patent was awarded for the primary lining system and both a US and International patent are pending for the back up lining system. 
    • Team member on project sponsored by the DOE ITP Program w/ industrial refractory collaborators Monofrax and Corhart and academic partner University of Missouri - Rolla looking at fusion-cast spinel materials for glass crown refractory applications ($100K budget). This project resulted in the validation of fusion-cast spinel materials as a replacement for traditional silica refractory crowns in furnaces employing new higher efficiency oxy-fuel combustion systems, alleviating increased corrosion and high temperature wear issues.
    • Performed mechanical testing and evaluation of foam materials, membrane materials, structural ceramics, composites, polymers, and metallic thin foil materials.

                      
Awards And Honors:

Teaching And Mentoring Experience:

  • Served on Committees for two Ph.D. students associated with my DOE funded projects.
  • Mentored and Supervised three technical intern students from local community college.
  • Mentored and Supervised various undergraduate interns.
  • Mentored junior staff members of research group.

Professional Affiliations:

  • American Ceramic Society
    • Refractory Ceramics Division – Executive Board Member 2011-2012, Chair 2010, Vice Chair 2009, Secretary 2008.
    • Symposium Co-Chair for 37th ICACC and UNITECR 2013.
    • Lead Organizer of Refractory Materials Symposium for MS&T’11 2011.
    • Member of ACerS Energy Task Force 2010-2011.
    • Co-organizer for 5th International Symposium on Advances in Refractories 2010.
    • Program Chair for 43rd and 44th Symposiums on Refractories 2007 and 2008.
    • American Ceramic Society Bulletin - Refractory Hotline Editor 2009-2010.
  • ASM International
    • National Volunteerism Committee 2012 to present – Student Involvement Sub-committee.
    • Oak Ridge Chapter – Executive Board Member at Large 2011, Long-Range Planning Chair 2010, Chair 2009, Vice Chair 2008, Treasurer 2007, Secretary 2006.
    • Co-organizer for local ASM Teachers Camp 2012 and 2013.        
    • Co-organizer for local ASM Industry Night 2010 and 2011.        
  • ASTM C8 Committee on Refractories
  • Keramos Ceramic Honor Fraternity
  • National Institute of Ceramic Engineers
  • Vols4STEM (East TN STEM professionals teaming with educators to promote STEM)
  • Journal Reviewer
    • International Journal of Applied Ceramic Technology (2008 to present)
    • Refractory Applications Transactions (2009-2012)
    • Journal of Materials Science (2009 to present)
    • Carbon (2011 to present)
  • DOE SBIR Program Reviewer (2005 to present)

Publications And Presentations:

Selected publications from over fifty refereed publications (full list available upon request)

Refractory Development and Testing:

  1. J.G. Hemrick, A. Rodrigues-Schroer, D. Colavito, J.D. Smith, and K. O’Hara, “Development and Deployment of Shotcrete Refractories for Aluminum Rotary Furnace Application,” Refractories World Forum, Vol. 5, No. 1, January (2013).
  2. J.G Hemrick, B. Armstrong, J.D. Smith, K. O’Hara, A. Rodrigues-Schroer, and D. Colavito, “Novel Spinel-Family Refractories for High Temperature, High-Alkaline Environments,” Proceedings of the 48th Symposium on Refractories, St. Louis, Missouri, March (2012).
  3. J.G Hemrick, R.B. Dinwiddie, E.R. Loveland, and A. Prigmore, “Development of a Test Technique to Determine the Thermal Diffusivity of Large Refractory Ceramic Test Specimens,” International Journal of Applied Ceramic Technology, Vol. 9, Issue 1, January/February (2012).
  4. J.G Hemrick, B. Armstrong, A. Rodrigues-Schroer, D. Colavito, J. D. Smith, and K. O’Hara, “Development of Novel Spinel Refractories For Use in Coal Gasification Environments,” Proceedings of 28th Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, September (2011).
  5. J.G Hemrick, A. Rodrigues-Schroer, D. Colavito, and J.D. Smith, “Improved Furnace Efficiency Through the Use of Refractory Materials,” Light Metals 2011:  Furnace Efficiency – Energy and Throughput, TMS, March (2011).
  6. J.G Hemrick, J.R. Keiser, and R.A. Meisner, “Material Characterization and Analysis for Selection of Refractories Used in Black Liquor Gasification,” Materials Challenges in Alternative & Renewable Energy: Ceramic Transactions, Volume 224, December (2010).
  7. J.G Hemrick, J.D. Smith, K. O’Hara, D. Colavito, and A. Rodrigues-Schroer, “Novel Spinel-Family Refractories for High-Temperature, High-Alkaline Environments,” Proceedings of the 2010 Advances in Refractories V, 5th International Symposium, The Michel Rigaud Symposium, Vancouver, British Columbia, Canada, October (2010).
  8. J.R. Keiser, J.G Hemrick, R.A. Meisner, P.J. Blau, and B.A Pint, “Selection and Performance of Materials for Biomass Gasifiers”, Proceedings of the 2010 International Chemical Recovery Conference, Williamsburg, Virginia, March (2010).
  9. J.G Hemrick and K.M. Peters, “Advanced Ceramic Composites for Molten Aluminum Contact Applications,” UNITECR’ 09 Proceedings, Salvador, Brazil, October (2009).
  10. J.G Hemrick, J.D. Smith, and J. Damiano, “Novel Spinel-Family Refractories for High-Temperature, High-Alkaline Environments”, UNITECR’ 09 Proceedings, Salvador, Brazil, October (2009).
  11. J.G Hemrick and A.A. Wereszczak, “Non-Classical Creep Behavior of Fusion-Cast a/b Alumina Refractories,” Refractory Applications Transactions, Vol. 4, No. 1 (2009).
  12. J.G. Hemrick, K.M. Peters, and J. Damiano, “Energy Saving Strategies for the Use of Refractory Materials in Molten Material Contact,” Energy Technology Perspectives:  Conservation, Carbon Dioxide Reduction and Production from Alternative Sources, TMS, February (2009).
  13. J.G Hemrick, W.L. Headrick, and K.M. Peters, “Development and Application of Refractory Materials for Molten Aluminum Applications,” International Journal of Applied Ceramic Technology, Vol. 5, No. 3, (2008).
  14. J. Xu, X. Liu , E. Barbero, J.G Hemrick, and M. Peters, “Wetting and Reaction Characteristics of Al2O3/SiC Composite Refractories by Molten Aluminum and Aluminum Alloy,” International Journal of Applied Ceramic Technology, Vol. 4, No. 6, (2007).
  15. J.G Hemrick, J. Xu, K. Peters, X. Liu, and E. Barbero, “Wetting and Reaction Characteristics of Al2O3/SiC Composite Refractories By Molten Aluminum and Aluminum Alloy,” Mechanical Properties and Performance of Engineering Ceramics and Composites III, Ceramic Engineering and Science Proceedings, Vol. 28, Issue 2, (2007).
  16. J.G Hemrick, J.R. Keiser, R.A. Peascoe, C.R. Hubbard, E. Lara-Curzio “Refractory Testing and Evaluation at Oak Ridge National Laboratory for Black Liquor Gasifier Applications,” UNITECR’ 05 Proceedings, Orlando, Florida, November (2005).
  17. J.G Hemrick, V. Sikka, and W.L. Headrick “Multifunctional Refractory Materials for Molten Metal Contact Applications,” UNITECR’ 05 Proceedings, Orlando, Florida, November (2005).
  18. M. Velez, M. Karakus, X. Liang, W. L. Headrick, R. E. Moore, J.G Hemrick, and J. M. Almanza, “Evaluation of Crown Refractories Under Oxyfuel Environment,” Advances in Fusion and Processing of Glass III, Ceramic Transactions, Vol. 141, (2004).
  19. H. Wang, J.G. Hemrick, R.B. Dinwiddie and M.K. Ferber, “Thermal Conductivity of Salvaged Fusion Cast Alumina Used in Glass Industry,” Thermal Conductivity, Vol.  26, (2002).
  20. J.G Hemrick and A.A Weresczcak, “Creep Measurement and Analysis of Refractories,” Fundamentals of Refractory Technology, Ceramic Transactions, Vol. 125, (2001).

Mechanical Testing and Analysis:

  1. J.G. Hemrick and E. Lara-Curzio, “Probabilistic Failure Analysis for Wound Composite Ceramic Cladding Assembly”, Ceramic Materials for Energy Applications III, Ceramic Engineering and Science Proceedings, Vol. 34, Issue 9, November (2013).
  2. K. McCoy, M. Machut, J.G. Hemrick, R. Morris, P. Blanpain, N. Vioujard, “Analysis and Examination of MOX Fuel from Nonproliferation Programs”, Proceedings of LWR Fuel Performance Meeting (TopFuel 2013), Charlotte, North Carolina, September (2013).
  3. J.G Hemrick and E. Lara-Curzio, “Constitutive Model for the Mechanical Behavior and Stress Relaxation of 430 Stainless Steel and FeCrAlY Foams in Sulfur-bearing Environments,” JOM, Vol. 65, No. 3, March (2013).
  4. G. Muralidharan, N.D. Evans, K.C. Liu, J.G. Hemrick, M.L. Santella, P.J. Maziasz, V.K. Sikka, and R.I. Pankiw, “Precipitation and Its Effects on the Creep Properties of Certain Cast H-Series Austenitic Steels,” Proceedings of an International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Vol. 1, (2005).
  5. J.G Hemrick, E. Lara-Curzio, K. Liu, and B. Min, “Mechanical Properties of Thermally Cycled Nylon Bonded Nd-Fe-B Permanent Magnets,” Journal of Materials Science, Vol. 39, No. 21, (2004).
  6. A.A. Wereszczak, J.G Hemrick, T.P. Kirkland, J.A. Haynes, T.J. Fitzgerald, and J.E. Junkin, “Stress Relaxation of MCrAlY Bond Coat Alloys as a Function of Temperature and Strain”, ASME Paper No.98-GT-403, Presented at International Gas Turbine and Aeroengine Congress and Exhibition, Stockholm, Sweden, June 2-5, (1998).

Thermal Insulation/Conduction Materials and Thermal Properties Evaluation:

  1. K.R. Wilkerson, J.D. Smith, T.P. Sander, and J.G Hemrick, “Thermal Properties in the MgAl2O4-Al2O3 System”, UNITECR 2013: Proceedings of the Unified International Technical Conference on Refractories, Victoria, British Columbia, September (2013).
  2. J.G Hemrick, E. Lara-Curzio, E.R. Loveland, K.W. Sharp, and R. Schartow, “Development and Testing of Prototype Ultra-light Weight Heat Exchangers Utilizing Graphite-based Woven Technology,” Carbon, Vol. 49, Issue 14, November (2011).
  3. J.G Hemrick, E. Lara-Curzio, and J.F. King, “Long-Term Temperature Gradient Stress Relaxation Testing and Modeling of Ceramic Insulation Materials,” Mechanical Properties and Performance of Engineering Ceramics and Composites IV, Ceramic Engineering and Science Proceedings, Vol. 30, Issue 2, (2010).
  4. J.G Hemrick and E.R. Loveland, “Technique Development for Large Sample Thermal Conductivity Measurement,” UNITECR’ 05 Proceedings, Orlando, Florida, November (2005).
  5. J.G Hemrick, C.W. Kistler, A.A Wereszczak, M.K. Ferber, “Thermal Conductivity of Alumina Measured with Three Techniques,” Journal of Testing and Evaluation, Vol. 31, No. 4 (2003).

Materials Design and Development:

  1. K.R. Wilkerson, J.D. Smith, T.P. Sander, and J.G Hemrick, “Solid Solution Effects on the Thermal Properties in the MgAl2O4-MgGa2O4 System”, Journal of the American Ceramic Society, Vol. 96, No. 3, March (2013).
    Currently available on-line at: (http://onlinelibrary.wiley.com/doi/10.1111/jace.12125/pdf)
  2. X. Liu, J. Xu, M. A. Bright, J.G Hemrick, and E. Barbero, “Reactive Wetting of an Iron-Based Superalloy MSA2020 and 316 Stainless Steel by Molten Zinc Alloy,” TMS Metallurgical and Materials Transactions A, Vol. 39, No. 6, (2008).
  3. S.D. Conzone, J.G Hemrick, and D.E. Day, “Glass Formation and Chemical Durability of Dysprosium Lithium Borate Glasses Intended for In-Vivo Radiation Synovectomy,” Glastechnische Berichte – The International Journal of Glass Science and Technology, Vol. 74, No. 2, (2001).

Rapid Prototyping:

  1. J.G Hemrick, T.L Starr, and D.W. Rosen, “Release Behavior for Powder Injection Molding in Stereolithography Molds,” Rapid Prototyping Journal, Vol. 7, No. 2, (2001).                       

Book edited:

  1. G. Oprea and J.G Hemrick, “2010 Advances in Refractories V, 5th International Symposium, The Michel Rigaud Symposium”, The Metallurgical Society of the Canadian Institute of Mining, Metallurgy and Petroleum, (2010).                      

Book chapter written:

  1. C.C. Harvey, W.L. Headrick, and J.G Hemrick, “Refractory Clays”, 7th Edition of Industrial Minerals and Rocks, Society of Mining and Metallurgy, (2006).                                 

Selected technical reports from over fifteen published (full list available upon request)
Refractory and Insulation Material Development and Testing:

  1. J.G. Hemrick, J.D. Smith, K. O’Hara, A. Rodrigues-Schroer, and D. Colavito, “Novel Refractory Materials for High Alkali, High Temperature Environments,” ORNL Technical Report, ORNL/TM-2012/245, (2012).
  2. J.G Hemrick, M. Hu, K.M. Peters, and B. Hetzel, “Nano-Scale Interpenetrating Phase Composites (IPC’S) for Industrial and Vehicle Applications,” ORNL Technical Report, ORNL/TM-2010/80, (2010).
  3. JX. Liu, B. Kang, B. Gopalakrishnan, J. Hemrick, V. Sikka, and C. Irwin, “Multifunctional Metallic and Refractory Materials for Energy Efficient Handling of Molten Metals,” DOE Project Final Report, DE-FC36-04GO13038, (2009).
  4. J.G Hemrick, E. Lara-Curzio, and J.F. King, “Characterization of Min-K TE-1400 Thermal Insulation,” ORNL Technical Report, ORNL/TM-2008/089, (2008).
  5. J.R. Keiser and J.G Hemrick, “Improved Materials for High-Temperature Black Liquor Gasification,” ORNL Technical Report, ORNL/TM-2006/71, (2006).
    M.K. Ferber, A.A. Wereszczak, J.G Hemrick, “Compressive Creep and Thermophysical Performance of Refractory Materials,” ORNL Technical Report, ORNL/TM-2005/134, (2006).
  6. J.G Hemrick, H.W. Hayden, P. Angelini, R.E. Moore, and W.L. Headrick, “Refractories for Industrial Processing:  Energy Reduction Opportunities,” Prepared for the DOE-EERE Industrial Technologies Program, (2005).
  7. W.L. Headrick, R.E. Moore, M. Karakus, X. Liang, M.K. Ferber, and J.G Hemrick, “Characterization and Structural Modeling of Magnesia Alumina Spinel Glass Tank Refractories,” DOE Project Final Report, DOEID14250FIN, (2003).
  8. J.G Hemrick, A.A. Weresczcak, M. Karakus, K.C. Liu, H. Wang, B.A. Pint, T.P. Kirkland, and R.E. Moore, “Compressive Creep and Thermomechanical Performance of Mullite Refractories,” ORNL Technical Report, ORNL/TM-2002/84, (2002).

Material Testing and Analysis:

  1. JJ.J. Wang, J.G Hemrick, and F. Ren, “Basic Research on the Materials Characterization of Ultra-High Performance Concretes:  High Temperature and Rapid Heating,” ORNL Technical Report, ORNL/TM-2012/162, (2012).           

Nuclear Materials:

  1. J.G Hemrick and E. Lara-Curzio, “Probabilistic Failure Analysis for Wound Composite Ceramic Cladding Assembly,” ORNL Technical Report, ORNL/TM-2012/413, (2012).
  2. R.N. Morris, C.A. Baldwin, R. Battiste, J.M. Giaquinto, I.C Gauld, J.G Hemrick, K.J. Leonard, H.F. Longmire, W.J. McAffee, J.K. McCoy, J. Myers, S.L. Voit, and Y. Yan, “MOX PIE Fuel and Clad Examination Final Report,” ORNL Technical Report, ORNL/MD/LTR-352 Rev 1, (2012).

US Patent:

  1. R.A. Peascoe-Meisner, J.R. Keiser, J.G. Hemrick, C.R. Hubbard, J.P. Gorog, and A. Gupta, “MgAl2O4 SPINEL REFRACTORY AS CONTAINMENT LINER FOR HIGH-TEMPERATURE ALKALI CONTAINING ENVIRONMENTS” (US Patent 7,438,004 issued 10/21/2008).                                  

Invited Presentations and Classes Taught:

  1. J.G. Hemrick, A. Rodrigues-Schroer, D. Colavito, J.D. Smith, and K. O’Hara, "Development and Application of Improved Shotcrete Refractory for Aluminum Rotary Furnace Applications," UNITECR 2013, Victoria, British Columbia, September (2013).
  2. J.G Hemrick, J.D. Smith, K. O’Hara, A. Rodrigues-Schroer, and D. Colavito, “Refractory Materials based on Magnesia-Alumina Spinel for Improved Performance in Coal Gasification Environments,” 49th Symposium on Refractories, St. Louis, Missouri, March (2013).
  3. J.G Hemrick, B. Armstrong, J.D. Smith, K. O’Hara, A. Rodrigues-Schroer, and D. Colavito, “Novel Spinel-Family Refractories for High Temperature, High-Alkaline Environments”, 48th Symposium on Refractories, St. Louis, Missouri, March (2012).
  4. J.G Hemrick, “Refractory Ceramics, An Opportunity for Improved Energy Efficiency,” Oak Ridge Chapter of ASM International Technical Meeting and Awards Night, Knoxville, Tennessee, May (2010).
  5. J.G Hemrick, “Refractory Ceramics,” unit for Materials Processing Class (MSE 370) , University of Tennessee, Knoxville, Tennessee, Spring (2010).
  6. J.G Hemrick, “Refractory Ceramics, An Opportunity for Improved Energy Efficiency,” Chattanooga Engineers Club Technical Meeting, Chattanooga Convention Center, Chattanooga, Tennessee, January (2009).
  7. J.G Hemrick, J.R. Keiser, R.A. Peascoe-Meisner, J.P. Gorog, and W. Ray Leary, “Material Characterization and Analysis for Selection of Refractories Used in Black Liquor Gasification,” 44th Symposium on Refractories, St. Louis, Missouri, March (2008).
  8. J.G Hemrick, R.B. Dinwiddie, E.R. Loveland, and A.L. Prigmore, “Use of IR Techniques to Determine Thermal Conductivity of Ceramic Insulation,” Materials Technology Institute (MTI) 94th TAC Meeting, Hilton Head, South Carolina, October (2007).
  9. J.G Hemrick and S. Dillich, “DOE-EERE Industrial Technologies Program (ITP) and Refractory Related Efforts,” 43rd Symposium on Refractories, St. Louis, Missouri, March (2007).
  10. J.G Hemrick, R.B. Dinwiddie, and E.R. Loveland, “Technique Development for Large Sample Thermal Conductivity Measurement of Refractory Ceramics,” 43rd Symposium on Refractories, St. Louis, Missouri, March (2007).
  11. J.G Hemrick, E.R. Loveland, and E. Lara-Curzio, “Refractory Characterization, Analysis and Development at ORNL with Emphasis on Technique Development for Large Sample Thermal Conductivity Measurement,” American Petroleum Institute (API) 71st Spring Refining and Equipment Standards Meeting, Dallas, Texas, May (2006).
  12. J.G Hemrick, “Refractory Ceramics, An Opportunity for Improved Energy Efficiency,” Oak Ridge Institute for Continued Learning (ORICL), Roane State Community College, Oak Ridge, Tennessee, Winter (2006).
  13. J.G Hemrick, “Refractory Characterization Efforts at ORNL,” University of Missouri – Rolla, Ceramic Engineering Department Seminar Series, Rolla, Missouri, November (2000).