Professor

B.Sc., M.Sc. (Krakow), Ph.D. (McMaster), P.Eng.

phone: 6048222612
Frank Forward Room 109
Research Interests
  • Processing, microstructure and properties of ceramics
  • Refractories
  • Bioceramics
  • Ceramic coatings (sol-gel, thermal sprayed)
  • Adhesion of ceramics to metals
  • Ceramic and metal matrix composites
  • Semiconductive and photocatalytic ceramics
  • Ceramics for fuel cells, ceramic sensors, fracture and wear of ceramics
  • Polymer matrix composites

Refereed Journal Publications

  1. T Gong, Z Wang,Y Zhang, C Sun, Q Yang ,T Troczynski U Hafeli, “Preparation, characterization , release kinetics and in vitro cytotoxicity of calcium silicate cement as a risedronate delivery system”, Journal of Biomedical Materials Research Part A 102 (7)  2295-2304 (2014)
  2. T Chae, H Yang F Ko, T Troczynski, “Bio-inspired dicalcium phosphate anhydrate/poly(lactic acid) nanocomposite fibrous scaffolds for hard tissue regeneration: In-situ synthesis and electrospinning” , Journal of Biomedical Materials Research Part A 102 (2), 514-522  February 2014
  3. T Chae, H Yang, V Leung(*), F Ko, T Troczynski, “Novel biomimetic hydroxyapatite/alginate nanocomposite fibrous scaffolds for bone tissue regeneration”, Journal of Materials Science: Materials in Medicine, August 2013 , Volume 24, Issue 8, pp 1885-1894
  4. Shafiei, , C. Oprea, T. Troczynski, “Effect of porous alumina coatings on decreasing hydrogen damage to Pb(Zr,Ti)03″, Surface and Coatings Technology, Volume 224, 15 June 2013, Pages 29-33
  5. A.Shafiei and T. Troczynski,  “Dielectric spectroscopy study of hydrogen treated lead zirconate titanate (Pb (Zr,Ti)03)”, Physica Status Solidi “A”, 210(6) 1228-31, 2013
  6. S. Zhou, J Ma, Y Shen, M Haapasalo, N.D Ruse, Q Yang , T Troczynsk i, “In vitro studies of calcium phosphate silicate bone cements”, J Mat Sci: Materials in Medicine, Feb 2013 , Vol 24, lss 2, pp 355-364
  7. H.R. Zargar, C. Oprea, G. Oprea, T. Troczynski ” The effect of nano-Cr203 on solid-solution assisted sintering of MgO refractories”, Ceramics International , Vol 38 , Issue 8, Dec 2012, p 6235-6241
  8. C.Oprea, F. Wong, H.K.Sharif, C. Blair, A Welch, Tom Troczynski , Degradation of Silicon Nitride Glow Plugs in Various Environments Part 3: NGDI Engine”, Int J of Applied Ceramic Tech, Vol 9, p 272-279, April 2012
  9. A Shafiei, C Oprea, T Troczynski, “Investigation of the Effects of HighPressure Hydrogen on Pb (Zr, Ti) 03 (PZT) Ceramics”, in-print, Journal of the American Ceramic Society (fall 2012)
  10. C. Oprea, F. Wong, H. Karimi Sharif, C. Blair, A . Welch, T. Troczynski, “Degradation of Silicon Nitride Glow Plugs in Various Environments Part 2: Gas Burner Rig”,  Int. J. Appl. Ceram Tech,  [9] 2 259  (2012)
  11. A Shafiei, T Nickchi, C Oprea, A Alfantazi, T Troczynski , “Investigation of hydrogen effects on the properties of Pb (Zr, Ti) 03 in tetragonal phase using water electrolysis technique”, Applied Physics Letters 99 (21), 212903-212903-3 , (2011)
  12. R. Lodha, C. Oprea, T. Troczynski and G. Oprea, “Sintering studies on magnesia-rich chrc;imium-free spinel- bonded basic refractories”, Industrial Ceramics, 31 (3), pp. 223-228, 2011
  13. A Shafiei, C Oprea, A Alfantazi, T Troczynski, “In situ monitoring of the effects of hydrogen on Pb (Zr, Ti) 03 structure”, Journal of Applied Physics 109, 114108, 2011
  14. F. Samanipour, M.R. Bayati, H.R. Zargar, F. Golestani-Fard, T. Troczynski, M. Taheri, “Electrophoretic enhanced micro arc oxidation of Zr02-HAp-Ti02 nanostructured porous layers”, Journal of Alloys and Compounds 509  9351- 9355 (2011)
  15. F. Samanipour, M.R. Bayati, F. Golestani-Fard, H.R. Zargar, T. Troczynski, A.R. Mirhabibi, “An innovative technique to simply fabricate Zr02-HA-Ti02 nanostructured layers”, Colloids and Surfaces B: Biointerfaces 86 14-20   (2011)
  16. C Oprea, F Wong , H Sharif, T Troczynski, C Blair and A Welch, ” Degradation of Silicon Nitride Glow Plugs in Various Environments Part 1: DC Electric Field in Ambient Air” Int J App Ceram Tech, [8] 3 669-683 2011
  17. R. Lodha , G. Oprea, T. Troczynski, Role of Ti4+ and Sn4ions in spinel formation and reactive sintering of magnesia-rich ceramics”, Ceramics International 37 465-470 (2011)
  18. R. Lodha , C. Oprea, T. Troczynski and G. Oprea “Sintering studies on magnesia-rich chromium-free spinel-bonded basic refractories, Advances in Science and Technology, 70, 2010, pp. 108-113.
  19. John Skrovan, Tom Troczynski and A. Alfantazi “The Role of Alumina in Aluminum Corrosion and Passivation”, ECS Trans. [28] No. 24  p157-169  (2010)
  20. E. Czech and T. Troczynski, “Hydrogen generation through massive corrosion of deformed aluminum in water” Int. J. of Hydrogen Energy, [35] 3, 1029-1037 2010
  21. J. Skrovan, T. Troczynski, and A.M. Alfantazi, “Enhanced Corrosion Properties of Aluminum in Water”, Journal of Applied Electrochemistry, [39] 1695-1702 2009
  22. Rose Lars, Kesler Olivera, Deces-Petit Cyrille, Troczynski Tom, Marie Radenka, “Characterization of Porous Stainless Steel 430 For Low- And Intermediate-Temperature Solid Oxide Fuel Cell (SOFC) Substrates”, Int. J. of Green Energy, [6] No 6, p.638-645  (2009)
  23. G. Ye and T. Troczynski, “Hydroxyapatite coatings By Pulsed Ultrasonic Spray Pyrolysis”, Ceramics Int. [34] 511-16 2008
  24. R. Lodha, T. Troczynski and G. Oprea, “Role of oxide additives in the synthesis and sintering of magnesium aluminate spinel” lnterceram, 57(5) 2008, pp. 324-329 .
  25. G. Ye, G. Oprea and T. Troczynski , “Synthesis of MgAl204 spinel from mechanically activated mixtures of magnesium hydroxide-boehmite -aluminum tri-hydroxide”, Refractories [5] 2008 (in Chinese)

Refereed Conference Proceedings

  1. Rahul Lodha, Carmen Oprea, Tom Troczynski, George Oprea, “Effect Of Magnesia Dissolution In Non­ Stoichiometric Chromium-Free Complex Spinel”, Proceedings of the UNITECR 2013: Unified International Technical Conference on Refractories, Sept. 10-13, Victoria, BC Canada, pages 257-261, Published 2014/2/27
  2. Rahul Lodha, George Oprea, Tom Troczynski, “Spinel Inversion And Lattice Parameters In Chromium-Free Spinel Solid Solutions”, Proceedings of the UNITECR 2013: Unified International Technical Conference on Refractories, Sept. 10-13, Victoria, BC Canada, pages 263-266, Published 2014/2/27
  3. Hamidreza Zargar, George Oprea, Tom Troczynski, “Influence Of Solid Solution Formation On The Solid State Sintering Of MgCrZ04”, Proceedings of the UNITECR 2013: Unified International Technical Conference on Refractories, Sept. 10-13, Victoria, BC Canada, pages 313-317, Published 2014/2/27
  4. R. Lodha, H. Zargar, C. Oprea, T. Troczynski and G. Oprea, “Effect of iron oxide in activated synthesis & sintering of complex spinel”, Proceedings of UNITECR 2011 Congress, 2-D-15, Oct 30-Nov.2, 2011, Kyoto, Japan
  5. R. Lodha, H. Zargar, T. Troczynski and G. Oprea, “Magnesia rich complex spinel bonded basic castables”, Proc of the 12th Biennial Conference on Refractories, UNITECR 2011, Japan, 153-156
  6. H. Zargar, R. Lodha, C. Oprea, G. Oprea and T. Troczynski, “Evaluation of the role of nano-chromia on densification of magnesia-chrome refractories”, Proceedings of UNITECR 2011 Congress, 2-E-8, Oct 30-Nov.2, 2011, Kyoto, Japan