
Associate Professor, Glenn Murphy Professor of Engineering
Iowa State University
Materials Science and Engineering
3273 Gilman Hall / 2220V Hoover
Ames, IA 50011-3020
Phone: 515-294-9678 / 515-294-9835
Fax: 515-294-7202
ustundag@iastate.edu
J. Y. Li, R. C. Rogan, E. Üstündag and K. Bhattacharya, ?Domain Switching in Polycrystalline Ferroelectric Ceramics,? Nature Materials, 4, 776-781 (2005).
C. C. Aydiner and E. Üstündag, ?Residual Stresses in a Bulk Metallic Glass Cylinder Induced by Thermal Tempering,? Mechanics of Materials, 37, 201-212 (2005).
B. Clausen, S. Y. Lee, E. Üstündag, C. P. Kim, D. W. Brown and M. A. M. Bourke, ?Compressive Deformation of In-Situ-Formed Bulk Metallic Glass Composites,? in press: Scripta Mater. (2005). Invited contribution
E. Üstündag, R. Subramanian, R. Vaia, R. Dieckmann and S. L. Sass, "In Situ Formation of Metal-Ceramic Microstructures Including Metal-Ceramic Composites, Using Reduction Reactions," Acta Metall., 41 [7], 2153 (1993).
R. Subramanian, E. Üstündag, R. Dieckmann and S. L. Sass, "In Situ Formation of Metal-Ceramic Microstructures by Partial Reduction Reactions" in:Advances in Ceramic Matrix Composites, N. P. Bansal (ed.), Ceram. Trans.,38 (1994), p. 127.
E. Üstündag, R. Subramanian, R. Dieckmann and S. L. Sass, "In Situ Formation of Metal-Ceramic Composites and Ductile Phase Toughened Ceramics by Reduction Reactions" in: In Situ Composites: Science and Technology, M. Singh and D. Lewis (eds.), TMS, Warrendale, Pennsylvania, (1994), p. 97.
E. Üstündag, R. Subramanian, R. Dieckmann and S. L. Sass, "In Situ Formation of Metal-Ceramic Microstructures in the Ni-Al-O System by Partial Reduction Reactions," Acta Metall., 43 [1], 383 (1995).
R. Subramanian, E. Üstündag, R. Dieckmann and S. L. Sass, "In Situ Formation of Metal-Ceramic Microstructures by Partial Reduction Reactions,"Solid State Ionics, 75, 241 (1995).
E. Üstündag, R. Subramanian, R. Dieckmann and S. L. Sass, "In Situ Formation of Ductile Phase Toughened Ceramics by Partial Reduction Reactions in the Ni-Al-O System" in: Advances in Ceramics Matrix Composites II, N. P. Bansal and J. P. Singh (eds.), Ceram. Trans.,46 (1995), p. 439.
R. Subramanian, E. Üstündag, R. Dieckmann and S. L. Sass, "Effect of Dopants on the In Situ Formation of Metal-Ceramic Microstructures by Partial Reduction Reactions" in: Advances in Ceramics Matrix Composites II, N. P. Bansal and J. P. Singh (eds.), Ceram. Trans., 46 (1995), p. 451.
E. Üstündag, P. Ret, R. Subramanian, R. Dieckmann and S. L. Sass, "In Situ Metal-Ceramic Microstructures by Partial Reduction Reactions in the Ni-Al-O System and the Role of ZrO2," Mat. Sci. and Eng., A195, 39 (1995).
R. Subramanian, E. Üstündag, R. Dieckmann and S. L. Sass, "Metal-Ceramic Microstructure Control in Partial Reduction Reactions in the Model System Fe-Mn-O by Doping," Mat. Sci. and Eng., A195, 51 (1995).
E. Üstündag, P. Ret, Y. Shapiro, R. Subramanian, R. Dieckmann and S. L. Sass, "Ductile Phase Toughened Ceramics by Partial Reduction Reactions in the Ni-Al-O System: Mechanical Properties and Effect of Dopants" in: Ceramic Matrix Composites - Advanced High-Temperature Structural Materials, R. A. Lowden et al. (eds.), MRS Symposium Proceedings, vol. 365, MRS, Pittsburgh, Pennsylvania, (1995), p. 125.
R. Subramanian, E. Üstündag, R. Dieckmann and S. L. Sass, "Metal-Ceramic Microstructures in the Fe-Mn-O System: Morphology Control by Impurity Addition" in: Ceramic Matrix Composites - Advanced High-Temperature Structural Materials, R. A. Lowden et al. (eds.), MRS Symposium Proceedings, vol. 365, MRS, Pittsburgh, Pennsylvania, (1995), p. 95.
S. A. Jones, J. M. Burlitch, E. Üstündag, H. J. Yoo and A. T. Zehnder, "Nickel-Alumina Composites: In Situ Synthesis by a Displacement Reaction, and Mechanical Properties" in: Ceramic Matrix Composites - Advanced High-Temperature Structural Materials, R. A. Lowden et al. (eds.), MRS Symposium Proceedings, vol. 365, MRS, Pittsburgh, Pennsylvania, (1995), p. 53.
R. Kolhe, E. Üstündag, C.-Y. Hui and S. L. Sass, "Residual Thermal Stresses and Calculation of the Critical Metal Particle Size for Interfacial Crack Extension in Metal-Ceramic Matrix Composites," Acta Mater., 44 [1], 279 (1996).
E. Üstündag, M. L. Stocker, Y. Shapiro, J. E. Trancik and S. L. Sass, "In Situ Processing of Metal-Ceramic Composites Using Partial Reduction Reactions: Effect of Dopants, Porosity and Volume Change," in: Processing and Fabrication of Advanced Materials IV, T. S. Srivatsan and J. J. Moore (eds.), TMS, Warrendale, Pennsylvania, (1996), p. 529.
Z. Zhang, E. Üstündag and S. L. Sass, Partial Reduction of NiAl2O4 - Mechanism and the Influence of Doping in: Thermodynamics and Kinetics of Phase Transformations, J. S. Im, B. Park, A. L. Greer and G. B. Stephenson (eds.), MRS Symposium Proceedings, vol. 398, Materials Research Society, Pittsburgh, Pennsylvania, (1996), p. 489.
E. D. Rodeghiero, E. Üstündag, M. Wutherow, S. L. Sass and E. P. Giannelis, "The Nature of Ductile Phase Toughening in Ni/a-Al2O3 Metal-Ceramic Composites," in: Advances in Ceramic Matrix Composites III, N. P. Bansal and J. P. Singh (eds.), Ceram. Trans., 74 (1996), p. 353.
E. Üstündag, K. E. Sickafus, Y. He, R. B. Schwarz, P. Panda and R. Raj, Metal-Ceramic Composites for Hostile Environment Applications, in: Advances in Ceramic Matrix Composites III, N. P. Bansal and J. P. Singh (eds.),Ceram. Trans., 74 (1996), p. 595.
E. Üstündag, Z. Zhang, M. L. Stocker, P. Rangaswamy, S. L. Sass, S. Subramanian, M. A. M. Bourke, K. E. Sickafus and J. A. Roberts, "Influence of Residual Stresses on the Evolution of Microstructure During the Partial Reduction of NiAl2O4," Mat. Sci. and Eng. A238, 50 (1997).PDF copy
R. B. Schwarz, C. J. Wetteland, T. D. Shen, E. Üstündag and K. E. Sickafus, Vanadium-Spinel Composites for Structural Applications in Hostile Environments, Mat. Sci. and Eng. A234-236, 1091 (1997).
E. Üstündag, J. C. Hanan, B. Clausen, M. A. M. Bourke, S. L. Sass and T. J. Barbieri, Investigation of the Reduction of NiAl2O4 - I: Neutron Diffraction Studies, Ceram. Eng. and Science Proc., 19 (3), 549 (1998).
B. Clausen, E. Üstündag, P. Rangaswamy, M.A.M. Bourke, S. L. Sass and T. J. Barbieri, Investigation of the Reduction of NiAl2O4 - II: X-Ray Diffraction Studies, Ceram. Eng. and Science Proc., 19 (3), 557 (1998).
T. D. Shen, R. B. Schwarz, K. E. Sickafus and E. Üstündag, Vanadium/MgAl2O4 Composites for Hostile Environment Applications - Part I: Processing, Ceram. Eng. and Science Proc., 19 (3), 155 (1998).
E. Üstündag, K. E. Sickafus, T. Hartmann, C. J. Wetteland, T. D. Shen and R. B. Schwarz, Vanadium/MgAl2O4 Composites for Hostile Environment Applications - Part II: Properties, Ceram. Eng. and Science Proc., 19 (3), 163 (1998).
E. Üstündag, R. H. Woodman, J. C. Hanan, B. Clausen, T. Hartmann and M. A. M. Bourke, Neutron Diffraction Studies of the Partial Reduction of NiAl2O4: Phase and Strain Evolution, Ceram. Trans. 94, (1999), p. 537.
E. Üstündag, B. Clausen, and M. A. M. Bourke, Neutron Diffraction Study of the Reduction of NiAl2O4 Appl. Phys. Lett., 76 (6), 694 (2000).PDF copy
E. Üstündag, J. C. Hanan, B. Clausen, and M. A. M. Bourke, Investigation of the Reduction of NiAl2O4 Using Neutron Powder Diffraction in:Proceedings of the Sixth International Conference on Residual Stresses (ICRS-6), v. 1, IOM Communications, London, UK (2000), pp. 709-716.
B. Clausen, E. Üstündag and M. A. M. Bourke, "Investigation of the Reduction of NiAl2O4," Adv. X-Ray Anal., 44, 32-37 (2001).
I. Halevy, D. Dragoi, J. C. Hanan, E. Üstündag, A. F. Yue, J. Hu and M. S. Somayazulu, "Effect of Pressure on the Structure of NiAl2O4,"Adv. X-Ray Anal., 44, 50-55 (2001).
J. C. Hanan, I. J. Beyerlein, E. Üstündag, G. A. Swift, B. Clausen, D. W. Brown and M. A. M. Bourke, In-Situ Characterization of Matrix Response to Fiber Fractures, in: Advances in Fracture Research, Proceedings of the 10th International Conference on Fracture (ICF-10), editors: K. Ravi-Chandar, B.L. Karihaloo, T. Kishi, R.O. Ritchie, A.T. Yokobori, Jr., T. Yokobori, CD-ROM, Elsevier, UK (2001).
J. C. Hanan, E. Üstündag, D. Dragoi, I. C. Noyan, D. R. Haeffner and P. L. Lee, "Residual Stresses in Ti-SiC Composites," Adv. X-Ray Anal., 44, 156-161 (2001).
J. C. Hanan, G. A. Swift, E. Üstündag, I. J. Beyerlein, B. Clausen, J. D. Almer, U. Lienert and D. R. Haeffner, "Damage Evolution in Ti-SiC Unidirectional Fiber Composites," Adv. X-Ray Anal., 45, 251-256 (2002).
J. C. Hanan, E. Üstündag, I. J. Beyerlein, G. A. Swift, B. Clausen, D. W. Brown and M. A. M. Bourke, Elastic Strain Evolution in Single-Fiber Metal Matrix Composites Under Tensile Loading, Adv. X-Ray Anal., 45, 245-250 (2002).
J. C. Hanan, C. C. Aydiner, E. Üstündag, G. A. Swift, S. K. Kaldor and I. C. Noyan, Characterization of Fiber/Matrix Interfaces Using X-Ray Microtopography, Mater. Sci. Forum, 404-407, 919-924 (2002). PDF copy
J. C. Hanan, E. Üstündag, B. Clausen, M. Sivasambu, I. J. Beyerlein, D. W. Brown and M. A. M. Bourke, Residual Strain Evolution during the Deformation of Single-Fiber Metal Matrix Composites, Mater. Sci. Forum, 404-407, 907-912 (2002).
J. C. Hanan, B. Clausen, G. A. Swift, E. Üstündag, I. J. Beyerlein, J. D. Almer, U. Lienert and D. R. Haeffner, "Microscale Residual Strains in Monolayer Unidirectional Fiber Composites," Mater. Sci. Forum, 404-407, 913-918 (2002). PDF copy
J. C. Hanan, G. A. Swift, E. Üstündag, I. J. Beyerlein, J. D. Almer, U. Lienert and D. R. Haeffner, "Microscale Elastic Strain Evolution Following Damage in Ti-SiC Composites," Metall. Mater. Trans. 33A, 3839-3845 (2002). PDF copy
J. C. Hanan, E. Üstündag, I. J. Beyerlein, G. A. Swift, J. D. Almer, U. Lienert and D. R. Haeffner, X-Ray Stress Analysis of Damage Evolution in Ti-SiC Unidirectional Fiber Composites, in press: Adv. X-Ray Anal., 46 (2003). PDF copy
G. A. Swift, E. Üstündag, B. Clausen, M.A.M. Bourke, H. T. Lin and C. W. Li, High-Temperature Deformation of Silicon Nitride and Its Composites, in press: Ceram. Trans., (2002).
G. A. Swift, E. Üstündag, B. Clausen, M.A.M. Bourke, H. T. Lin and C. W. Li, High-Temperature Elastic Strain Evolution in Si3N4-Based Ceramics, in press: Adv. X-Ray Anal., 46 (2003).
J. C. Hanan, E. Üstündag, I. J. Beyerlein, G. A. Swift, J. D. Almer, U. Lienert and D. R. Haeffner, Microscale Damage Evolution and Stress Redistribution in Ti-SiC Fiber Composites, in press: Acta Mater. (2003). PDF copy
J. C. Hanan, S. Mahesh, E. Üstündag, I. J. Beyerlein, B. Clausen, D. W. Brown and M. A. M. Bourke, Strain Evolution after Fiber Failure in a Single Fiber Metal Matrix Composite under Cyclic Loading, submitted to Mater. Sci. and Eng. A (2003).
E. Üstündag, B. Clausen, J. C. Hanan, M. A. M. Bourke, A. Winholtz and A. Peker, Residual Stresses in Bulk Metallic Glasses due to Differential Cooling or Thermal Tempering, W. L. Johnson, C. T. Liu and A. Inoue (eds.), MRS Symposium Proceedings, vol. 554, Materials Research Society, Warrendale, Pennsylvania, (1999), p. 431.
E. Üstündag, C. C. Aydiner, D. Dragoi, B. Clausen, M. A. M. Bourke and R. A. Winholtz, Residual Stresses in Bulk Metallic Glasses and Composites, in: Proceedings of the Sixth International Conference on Residual Stresses (ICRS-6), v. 1, IOM Communications, London, UK (2000), pp. 155-162.
D. Dragoi, E. Üstündag, B. Clausen and M. A. M. Bourke, Investigation of Thermal Residual Stresses in Tungsten-Fiber/Bulk Metallic Glass Matrix Composites, Scripta Mater., 45 (2), 245-252 (2001). PDF copy
E. Üstündag, D. Dragoi, B. Clausen, D. W. Brown, M.A.M. Bourke, D.K. Balch and D.C. Dunand, Internal Stresses in Bulk Metallic Glass Matrix Composites, A. Inoue, A. R. Yavari, W. L. Johnson and R. H. Dauskardt (eds.), MRS Symposium Proceedings, vol. 644, Materials Research Society, Warrendale, Pennsylvania, (2001), p. L9.3.
C. C. Aydiner, E. Üstündag and J. C. Hanan, Thermal Tempering Analysis of Bulk Metallic Glass Plates Using an Instant Freezing Model, Metall. Mater. Trans., 32A, 2709-2715 (2001). PDF copy
D. Dragoi, E. Üstündag, B. Clausen and M. A. M. Bourke, Residual Stresses in Tungsten / Bulk Metallic Glass Composites, Adv. X-Ray Anal., 44, 168-173 (2001).
D. K. Balch, E. Üstündag and D. C. Dunand, Synchrotron X-ray Diffraction Measurement of Reinforcement Strains in Uniaxially Stressed Bulk Metallic Glass Composites, MRS Symp. Proc., vol. 678 (2001).
B. Clausen, S. Y. Lee, E. Üstündag, C. P. Kim, D. W. Brown and M. A. M. Bourke, Deformation of In-Situ-Reinforced Bulk Metallic Glass Matrix Composites, Mater. Sci. Forum, 404-407, 553-560 (2002). PDF copy
C. C. Aydiner and E. Üstündag, Residual Stresses in Bulk Metallic Glasses I: Modeling, Mater. Sci. Forum, 404-407, 49-54 (2002).
C. C. Aydiner, E. Üstündag, M. B. Prime and A. Peker, Residual Stresses in Bulk Metallic Glasses II: Measurement, Mater. Sci. Forum, 404-407, 257-262 (2002).
C. C. Aydiner, E. Üstündag, M. B. Prime and A. Peker, Modeling and Measurement of Residual Stresses in a Bulk Metallic Glass Plate, J. Non-Cryst. Solids, 316 <st2:citation>[1]</st2:citation>, 82-95 (2003). PDF copy
D. K. Balch, E. Üstündag and D. C. Dunand, "Elasto-Plastic Load Transfer in Bulk Metallic Glass Composites Containing Ductile Particles," in press: Metall. Mater. Trans. (2003).
D. K. Balch, E. Üstündag and D. C. Dunand, Diffraction Strain Measurements in a Partially Crystallized Bulk Metallic Glass Composite Containing Ductile Particles, J. Non-Cryst. Solids, 317 <st1:citation>[1-2]</st1:citation>, 176-180 (2003). PDF copy
B. Clausen, S. Y. Lee, E. Üstündag, C. P. Kim, J. C. Hanan, D. W. Brown and M. A. M. Bourke, Compressive Deformation of In-Situ-Formed Bulk Metallic Glass Composites, submitted to Acta Mater. (2003).
C. C. Aydiner and E. Üstündag, Thermal Tempering of Bulk Metallic Glasses, in press: Proceedings of the Materials Research Society (2002).
B. Clausen, S. Y. Lee, E. Üstündag, C. C. Aydiner, R. D. Conner and M. A. M. Bourke, Compressive Yielding of Tungsten Fiber Reinforced Bulk Metallic Glass Composites, Scripta Mater. 49 [2], 123-128 (2003). PDF copy
C. C. Aydiner and E. Üstündag, Residual Stresses in a Bulk Metallic Glass Cylinder Induced by Thermal Tempering, submitted to Mechanics of Materials (2003).
C. C. Aydiner, E. Üstündag, B. Clausen, J. C. Hanan, R. A. Winholtz, M. A. M. Bourke and A. Peker, "Residual Stresses in a Bulk Metallic Glass - Stainless Steel Composite," submitted to Mater. Sci. and Eng. A (2003).
S. Y. Lee, B. Clausen, H. Choi-Yim, E. Üstündag, C. C. Aydiner and M. A. M. Bourke, Compressive Behavior of Wire Reinforced Bulk Metallic Glass Matrix Composites, submitted to Mater. Sci. and Eng. A (2003).
B. Clausen, R. C. Rogan, E. Üstündag, M. R. Daymond and V. Knoblauch, "Ferroelastic Behavior of PZT-Based Ferroelectric Ceramics," Mater. Sci. Forum, 404-407, 413-418 (2002).
R. C. Rogan, E. Üstündag, B. Clausen and M. R. Daymond, "Texture and Strain Analysis of the Ferroelastic Behavior of Pb(Zr,Ti)O3 by In-Situ Neutron Diffraction," J. Appl. Phys. 93 <st1:citation>[7]</st1:citation>, 4104-4111 (2003). PDF copy
R. C. Rogan, E. Üstündag, B. Clausen and M. R. Daymond, In-Situ Neutron Diffraction Study of the Ferroelastic Behavior of Pb(Zr,Ti)O3, in press: Ceram. Trans., (2002).
R. C. Rogan, N. Tamura, G. A. Swift and E. Üstündag, Direct Measurement of Triaxial Strain Fields around Ferroelectric Domains Using X-Ray Microdiffraction, Nature Materials 2, 379-381 (2003). PDF copy
S. Vogel, M. A. M. Bourke, J. C. Hanan, H. G. Priesmeyer and E. Üstündag, "Non-destructive In-Situ Real-Time Measurements of Structural Phase Transitions Using Neutron Transmission," Adv. X-Ray Anal., 44, 75-84 (2001). PDF copy
S. Vogel, E. Üstündag, J. C. Hanan, V. W. Yuan and M. A. M. Bourke, In-Situ Investigation of the Reduction of NiO by a Neutron Transmission Method, Mat. Sci. and Eng., A333, 1-9 (2002). PDF copy
I. Halevy, D. Dragoi, E. Üstündag, A. F. Yue, E. H. Arredondo, J. Hu and M. S. Somayazulu, "Effect of Pressure on the Structure of NiAl2O4 Spinel," J. Phys. Condens. Matter, 14, 10511-10516 (2002). PDF copy
M. A. M. Bourke, D. C. Dunand and E. Üstündag, "SMARTS - A Spectrometer for Strain Measurement in Engineering Materials," Appl. Phys. A, 74, S1707-S1709 (2002).
G. A. Swift, E. Üstündag, B. Clausen, M. A. M. Bourke and H. T. Lin, High-Temperature Elastic Properties of an In-Situ-Reinforced Si3N4, in press: Appl. Phys. Lett. (2003). PDF copy
E. Üstündag and G. Fischman (editors), Ceram. Eng. and Science Proc., vol. 20, issues 3-4, American Ceramic Society, Westerville, OH, 1999.
N. P. Bansal, J. P. Singh and E. Üstündag (editors), Advances in Ceramic-Matrix Composites-V, Ceram. Trans., vol. 103, American Ceramic Society, Westerville, OH, 2000.
T. Jessen and E. Üstündag (editors), Ceram. Eng. and Science Proc., vol. 21, issues 3-4, American Ceramic Society, Westerville, OH, 2000.
J. P. Singh, N. P. Bansal and E. Üstündag (editors), Advances in Ceramic-Matrix Composites-VI, Ceram. Trans., vol. 124, American Ceramic Society, Westerville, OH, 2001.