Recent Publications:

„Effects of Yttrium Doping Alpha-Alumina:  I.  Microstructure and Microchemistry,“  M. A. Gülgün, V. Putlayev, and M. Rühle, J. Am. Ceram. Soc., 82 [7], 1849-56( 1999).

 „Electron states of YAG probed by energy-loss near-edge spectrometry and ab-initio calculations,“ M. A. Gülgün, W-Y. Ching, Y-N. Xu, and M. Rühle, Phil. Mag. B, Vol. 79  [6], 921-940 (1999).

„Synthesis of Oxide Powders via Polymeric Steric Entrapment,“ W. M. Kriven, S. J. Lee, M. A. Gülgün, M. H. Nguyen, and D. K. Kim, invited review paper, in Innovative Processing/Synthesis: Ceramics, Glass, Composites III, Ceramic Transactions, Vol 108, 99-110 (2000).

 “The Effect of Yttrium on Densification and Grain Growth in a-Alumina”, R. Voytovych, I. MacLaren, M.A. Gülgün, R.M. Cannon, and M. Rühle, Acta Mater., 50 [13] 3453-3463 (2002).

“Cation Segregation in an Oxide Ceramic with Low Solubility: Yttrium doped a-Al2O3 “ M.A. Gulgun, R. Voytovych, I. Maclaren, M. Ruhle and R. M. Cannon, Interface Science 40, pp 99-110 (2002).

"Abnormal Grain Growth in Alumina: Synergistic Effects of Yttria and Silica,"  Ian Maclaren, Mehmet A. Gülgün, Raissa Voytovych, Nicoletta Popescu-Pogrion, Ulrike Taeffner, Rowland M. Cannon, and Manfred Ruehle, 86 [4] 650-59 (2003).

 “Microstructural Evolution of Calcium Doped a-Al2O3,” A. Altay and M. A. Gulgun, J. Am. Ceram. Soc., 86 [4] 623-29 (2003).

" Palladium Nanoparticles by Electrospinning from Poly(acrylonitrile-co-acrylic acid)-PdCl2 Solutions. Relations between Preparation Conditions, Particle Size, and Catalytic Activity", Mustafa M. Demir, Mehmet A. Gulgun, and Yusuf Z. Menceloglu, Burak Erman, Sergei S. Abramchuk, Elena E. Makhaeva, and Alexei R. Khokhlov, Macromolecules, 37, 1787-1792, (2004).



Selected Publications:

Patents

1.    "Polymerized Organic-Inorganic Complex Route for Mixed-Oxide Synthesis," M. A.Gülgün and W. M. Kriven, US patent# 6,482,387

Professional Publications and Papers

Journal Articles

1.    “Chemical Synthesis and Characterization of Calcium Aluminate Powders,” M. A. Gülgün, O. O. Popoola, and W. M. Kriven, Journal of the American                      Ceramic Society, 77  [2], 531-539 (1994).

2.    “XPS Study of Bonding Between Polyvinyl Alcohol and a Titanate Cross Coupling Agent,” M. A. Gülgün, W. M. Kriven and O. O. Popoola, Journal of                     Materials Research,  10 [6], 1565-1571 (1995).

3.    "Evolution of Mechano-Chemistry and Microstructure of a Calcium Aluminate-Polymer Composite: Part I.  Mixing Time Effects," M. A. Gülgün, W. M.                     Kriven, L. S. Tan and A. J. McHugh, Journal of Materials Research, 10 [7], 1746-1755 (1995).

4.    "Evolution of Mechano-Chemistry and Microstructure of a Calcium Aluminate-Polymer Composite: Part II. Mixing Rate Effects," L. S. Tan, A. J. McHugh, M.         A. Gülgün, and W.  M. Kriven, Journal of Materials Research, 11 [7], 1739-1747(1996).

5.    „Crystallization of Hafnia and Zirconia During the Pyrolysis of Acetate Gels,“ M. Yashima, T. Kato, M. Kakihana, M. A. Gülgün, Y. Matsuo, and M.                         Yoshimura, Journal Materials Science, 12 [10], 2575-2583 (1997).

6.    „Polymerized Organic-Inorganic Synthesis of Mixed Oxides,“ M. A. Gülgün, M. H. Nguyen, and W. M. Kriven, Journal of the American Ceramic Society, 82,         556-60 (1998).

7.    „Orientation Imaging Microscopy of Alpha Alumina:  Sample Preparation and Texture Analysis,“ M. L. Mulvihill, M. A. Gülgün, E. Bischoff, and M. Rühle,                 Zeitschrift für Metallkunde, 89 [8], 546-550 (1998).

8.    „Effects of Yttrium Doping Alpha-Alumina:  I.  Microstructure and Microchemistry,“ M. A. Gülgün, V. Putlayev, and M. Rühle, J. Am. Ceram. Soc., 82 [7],             1849-56( 1999).

9.    „Electron states of YAG probed by energy-loss near-edge spectrometry and ab-initio calculations,“ M. A. Gülgün, W-Y. Ching, Y-N. Xu, and M. Rühle, Phil.         Mag. B, Vol. 79  [6], 921-940 (1999).

10.    „A Study of the Microstructure of Y2O3-Doped Al2O3 with Bi-modal Grain Size Distribution“,Bernhard Fenk, Horst Opielka, Sabine Kühnemann,                         Mehmet A. Gülgün and Ewald Bischoff, bilingual (in German and English), Prakt. Metallogr., Vol. 36, 433-445, (1999).

11.    „Synthesis of Oxide Powders via Polymeric Steric Entrapment,“ W. M. Kriven, S. J. Lee, M. A. Gülgün, M. H. Nguyen, and D. K. Kim, invited review                   paper, in Innovative Processing/Synthesis: Ceramics, Glass, Composites III, Ceramic Transactions, Vol 108, 99-110 (2000).

12.    “The Effect of Yttrium on Densification and Grain Growth in a-Alumina”, R. Voytovych, I. MacLaren, M.A. Gülgün, R.M. Cannon, and M. Rühle, Acta                 Mater., 50 [13] 3453-3463 (2002).

13.    “Cation Segregation in an Oxide Ceramic with Low Solubility: Yttrium doped a-Al2O3 “ M.A. Gulgun, R. Voytovych, I. Maclaren, M. Ruhle and R. M.                 Cannon, Interface Science 40, pp 99-110 (2002).

14.    „Abnormal Grain Growth in Alumina: Synergistic Effects of Yttria and Silica,"  Ian Maclaren, Mehmet A. Gülgün, Raissa Voytovych, Nicoletta Popescu-Pogrion, Ulrike Taeffner, Rowland M. Cannon, and Manfred Ruehle, 86 [4] 650-59 (2003).

15.     “Microstructural Evolution of Calcium Doped a-Al2O3,”A. Altay and M. A. Gulgun, J. Am. Ceram. Soc., 86 [4] 623-29 (2003).

16.    Variable Microchemistry in a Polycrystalline Alumina with Y, Si, and Ca Impurities, Mehmet A. Gulgun, Rowland M. Cannon, Christina Scheu and Manfred                 Ruhle, to be submitted to the J. Amer. Cer. Soc. (2004).

17.   " Palladium Nanoparticles by Electrospinning from Poly(acrylonitrile-co-acrylic acid)-PdCl2 Solutions. Relations between Preparation Conditions, Particle Size, and Catalytic Activity", Mustafa M. Demir, Mehmet A. Gulgun, and Yusuf Z. Menceloglu, Burak Erman, Sergei S. Abramchuk, Elena E. Makhaeva, and Alexei R. Khokhlov, Macromolecules, 37, 1787-1792, (2004).


Conference Proceedings (selected)

17.    "Preparation and Hydration Kinetics of Pure CaAl2O4," M. A. Gülgün, I. Nettleship,  O. O. Popoola, W. M. Kriven and J. F. Young.  In Advanced                     Cementitious Systems: Mechanisms and Properties, edited by F. P. Glasser, P. L. Pratt, T. O. Mason, J. F. Young and G. J. McCarthy.  Published by                     Materials Research Society, Pittsburgh, Vol. 245, 199-204 (1992).

18.    Chemically Bonded Ceramics as an Alternative to High Temperature Composite Processing," M. A. Gülgün, B. R. Johnson and W. M. Kriven. In Better                 Ceramics Through Chemistry VI, edited by A. K. Cheetham, C. J. Brinker, M. L. Mecartney and C Sanchez. Publ. by Materials Research Society, Pittsburgh,         Vol. 346, 511-516 (1994).

19.    "Characterization of Macro Defect Free Processing in a Banbury Type Mixer," M. A.Gülgün and W. M. Kriven, pp. 650-651 in Proceedings of the                         Fifty-second Annual  Meeting of Microscopy Society of America (New Orleans, July-August 1994), edited by G. W. Bailey and A. J. Garratt-Reed, San                 Francisco Press, San Francisco, CA, 1994.

20.    "A Simple Solution-Polymerization Route for Oxide Powder Synthesis," M. A. Gülgün and W. M. Kriven, pp.57-66, in Science, Technology and                             Commercialization of Powder Synthesis and Shape Forming Processes", in Ceramic Transactions Vol. 62. (Cincinatti, OH, April, 1995). Edited by J. J.                     Kingsley, C. H. Schilling, and J. H. Adair. American Ceramic Society, Westerville, Ohio, 1996.

21.    "Chemically Bonded Ceramic Matrix Composites:  Densification and Conversion to Diffusion Bonding,"B. R. Johnson, M. A. Gülgün and W. M. Kriven, in             Ceramic Matrix Composites-Advanced High Temperature Structural Materials, edited by R. A. Lowdern, J. R. Hellmann, M. K. Ferber, S. G. DiPietro, and             K. K. Chawla, Published by Materials Research Society, Pittsburgh, Vol. 365, 67-72 (1995).

22.    "Chemically Bonded Ceramic Processing of Mono-Calcium Aluminate" by B. R. Johnson,  M. A. Gülgün, and W. M. Kriven, pp. 313-320 in Science,                     Technology, and Commercialization of Powder Synthesis and Shape Forming Processes, Ceramic Transactions, Vol. 62. (Cincinatti, OH, April, 1995). Edited          by J. J. Kingsley, C. H. Schilling, and J. H. Adair. American Ceramic Society, Westerville, Ohio, 1996.

23.    "Microstructure and Microchemistry of Y-doped -Al2O3"M. A. Gülgün,  M. L. Mulvihill, V. Putlayev, and M. Rühle, , pp. ?? Eds : Bailey, G. W.;                         Alexander, K. B.; Jerome, W. G.; Bond, M. G., and McCarthy, J. J.,  Springer, New York, NY, 1998. 

24.    „Yttrium-Segregated Grain Boundaries in a-Al2O3: An EELS Study,“ M. A. Gülgün, W- Y. Ching, and M. Rühle, pp. 289-96 in Materials Sci. Forum Vols.          294-296 Intergranular     and Interphase Boundaries in Materials, edited by P. Lejcek and V. Paidar, Trans Tech Publ., Enfield, NH, 1999,

25.    „Microstructure and Microchemistry of Y-Doped a- Al2O3,“ Mehmet A. Gülgün,  Maureen L. Mulvihill, Valery Putlayev, and Manfred Rühle, pp. 345-349,         in Turk. Ser. Der. Y. Vol. 20, Proc. Ceramic Congress, ed. S. Turan, F Kara, and E. Putun,  Turk. Cer. Soc. Publ.,  Eskisehir, Turkey, (1998).

26.    „An ELNES Study of Yttrium-Segregated Grain Boundaries in Alpha Alumina,“  Mehmet A. Gülgün, Wai-Yim Ching, and Manfred Rühle, pp. 351-356, in             Turk. Ser. Der.Y. Vol. 20, Proc. Ceramic Congress, ed. S. Turan, F. Kara, and E. Putun,  Turk. Cer. Soc. Publ.,  Eskisehir, Turkey, (1998).

27.    „Orientation Imaging Microscopy of Alpha Alumina,“ Maureen L. Mulvihill, Mehmet A. Gülgün, Ewald Bischoff, and Manfred Rühle, pp. 357-362, in Turk.             Ser. Der. Y. Vol. 20, Proc. Ceramic Congress, ed. S. Turan, F Kara, and E. Putun,  Turk. Cer. Soc. Publ., Eskisehir, Turkey, (1998).

28.      „Yttrium in Polycrystalline a-Alumina,“ Mehmet A. Gülgün and Manfred Rühle, pp 793-800 in Key Engineering Materials Vols. 171-174, Ed. by T. Sakuma           and K. Yagi, Trans Tech Publ., Enfield, NH, 1999.

29.      „Microstructural Development in a-Al2O3“, M. A. Gülgün, R. Voitovych, E. Bischoff, R. M. Cannon, and M. Rühle, in Grain Boundary Engineering in                 Ceramics, Ceramic Transactions, Vol 118, 115-125, (2000)

30.      "Synthesis of LaSrXMg-Oxide with X=Ga, Fe, or Cr", Cinar Oncel and Mehmet A. Gulgun, in Solid State Ionics 2002, Mat. Res. Soc. Symp. Proc. Vol.                 756, pp.497-502,  Ed. P. Knaut, J-M. Tarascon, E. Traversa,  and H.L. Tuller, MRS 2003.