Mechanical Properties of Materials Laboratory

On the growth of small fatigue cracks in gamma-based titanium aluminides, Campbell, J. P., Kruzic J. J., Lillibridge S., Rao K. T. V., and Ritchie R. O. , Scripta Materialia, Sep, Volume 37, Number 5, p.707-712, (1997)

The contrasting role of microstructure in influencing fracture and fatigue-crack growth in gamma-based titanium aluminides at large and small crack sizes, Kruzic, J. J., Campbell J. P., McKelvey A. L., Choe H., and Ritchie R. O. , Gamma Titanium Aluminides 1999, TMS Annual Meeting, (1999)

On the fatigue behavior of gamma-based titanium aluminides: Role of small cracks, Kruzic, J. J., Campbell J. P., and Ritchie R. O. , Acta Materialia, Feb, Volume 47, Number 3, p.801-816, (1999)

Fatigue-crack propagation in gamma-based titanium aluminide alloys at large and small crack sizes, Kruzic, J. J., Campbell J. P., and Ritchie R. O. , High-Temperature Ordered Intermetallics VIII, MRS Symposium Proceedings, Volume 552, p.KK2–3, (1999)

Time dependent debonding of aluminum/alumina interfaces under cyclic and static loading, Kruzic, J. J., McNaney J. M., Cannon R. M., and Ritchie R. O. , Structure-Property Relationships of Oxide Surfaces and Interfaces, MRS Symposium Proceedings, Volume 654, p.AA4–10, (2001)

Determining worst-case fatigue thresholds for grain-bridging ceramics, Kruzic, J. J., Yuan R., Cannon R. M., and Ritchie R. O. , Materials Lifetime Science & Engineering, TMS Annual Meeting, p.61–68, (2002)

Fracture and fatigue behavior at ambient and elevated temperatures of alumina bonded with copper/niobium/copper interlayers, Kruzic, J. J., Marks R. A., Yoshiya M., Glaeser A. M., Cannon R. M., and Ritchie R. O. , Journal of the American Ceramic Society, Oct, Volume 85, Number 10, p.2531-2541, (2002)

Ambient to high-temperature fracture toughness and cyclic fatigue behavior in Al-containing silicon carbide ceramics, Yuan, R., Kruzic J., Zhang X. F., De Jonghe L. C., and Ritchie R. O. , Acta Materialia, Dec, Volume 51, Number 20, p.6477-6491, (2003)

Crack blunting, crack bridging and resistance-curve fracture mechanics in dentin: effect of hydration, Kruzic, J., Nalla R. K., Kinney J. H., and Ritchie R. O. , Biomaterials, Dec, Volume 24, Number 28, p.5209-5221, (2003)

Determining the toughness of ceramics from Vickers indentations using the crack-opening displacements: An experimental study, Kruzic, J. J., and Ritchie R. O. , Journal of the American Ceramic Society, Aug, Volume 86, Number 8, p.1433-1436, (2003)

Mo-Si-B alloy development, Schneibel, J. H., Tortorelli P. F., Kramer M. J., Thom A. J., Kruzic J. J., and Ritchie R. O. , 17th Annual Conference on Fossil Energy Materials, Oak Ridge, TN, (2003)

Optimization of Mo-Si-B Intermetallics, Schneibel, J. H., Tortorelli P. F., Kramer M. J., Thom A. J., Kruzic J. J., and Ritchie R. O. , Defect Properties and Related Phenomena in Intermetallic Alloys, MRS Symposium Proceedings, Volume 753, p.BB2–2, (2003)

Characteristic dimensions and the micro-mechanisms of fracture and fatigue in 'nano' and 'bio' materials, Ritchie, R. O., Kruzic J. J., Muhlstein C. L., Nalla R. K., and Stach E. A. , International Journal of Fracture, Jul-Aug, Volume 128, Number 1-4, p.1-15, (2004)

Crack-size effects on cyclic and monotonic crack growth in polycrystalline alumina: Quantification of the role of grain bridging, Kruzic, J. J., Cannon R. M., and Ritchie R. O. , Journal of the American Ceramic Society, Jan, Volume 87, Number 1, p.93-103, (2004)

Effect of aging on the toughness of human cortical bone: evaluation by R-curves, Nalla, R. K., Kruzic J. J., Kinney J. H., and Ritchie R. O. , Bone, Dec, Volume 35, Number 6, p.1240-1246, (2004)

Effects of plastic constraint on the cyclic and static fatigue behavior of metal/ceramic layered structures, Kruzic, J. J., McNaney J. M., Cannon R. M., and Ritchie R. O. , Mechanics of Materials, Jan-Feb, Volume 36, Number 1-2, p.57-72, (2004)

An Experimental Assessment of Using Crack-Opening Displacements to Determine Indentation Toughness from Vickers Indents, Kruzic, J. J., and Ritchie R. O. , Indentation Techniques in Ceramic Materials Characterization, Ceramic Transactions, Volume 156, p.83–91, (2004)

Fracture and fatigue resistance of Mo-Si-B alloys for ultrahigh-temperature structural applications, Kruzic, J. J., Schneibel J. H., and Ritchie R. O. , Scripta Materialia, Feb, Volume 50, Number 4, p.459-464, (2004)

Mechanistic aspects of fracture of human cortical bone, Nalla, R. K., Kruzic J. J., Kinney J. H., and Ritchie R. O. , Biological and Bio-Inspired Materials and Devices, MRS Symposium Proceedings, Volume 823, p.W8–2, (2004)

Mo-Si-B alloy development, Schneibel, J. H., Kruzic J. J., and Ritchie R. O. , 18th Annual Conference on Fossil Energy Materials, Knoxville, TN, (2004)

On the origin of the toughness of mineralized tissue: microcracking or crack bridging?, Nalla, R. K., Kruzic J. J., and Ritchie R. O. , Bone, May, Volume 34, Number 5, p.790-798, (2004)

Ambient- to elevated-temperature fracture and fatigue properties of Mo-Si-B alloys: Role of microstructure, Kruzic, J. J., Schneibel J. H., and Ritchie R. O. , Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, Sep, Volume 36A, Number 9, p.2393-2402, (2005)

Aspects of in vitro fatigue in human cortical bone: time and cycle dependent crack growth, Nalla, R. K., Kruzic J. J., Kinney J. H., and Ritchie R. O. , Biomaterials, May, Volume 26, Number 14, p.2183-2195, (2005)

The dentin-enamel junction and the fracture of human teeth, Imbeni, V., Kruzic J. J., Marshall G. W., Marshall S. J., and Ritchie R. O. , Nature Materials, Mar, Volume 4, Number 3, p.229-232, (2005)

Effects of aging on the toughness of human cortical bone: A study from nano to macro size-scales, Nalla, R. K., Kruzic J. J., Kinney J. H., Balooch M., Ager J. W., Martin M. C., Tomsia A. P., and Ritchie R. O. , Mechanical Properties of Bioinspired and Biological Materials, MRS Symposium Proceedings, Volume 844, p.53-58, (2005)

Effects of moisture on grain-boundary strength, fracture, and fatigue properties of alumina, Kruzic, J. J., Cannon R. M., and Ritchie R. O. , Journal of the American Ceramic Society, Aug, Volume 88, Number 8, p.2236-2245, (2005)

Effects of polar solvents on the fracture resistance of dentin: role of water hydration, Nalla, R. K., Balooch M., Ager J. W., Kruzic J. J., Kinney J. H., and Ritchie R. O. , Acta Biomaterialia, Jan, Volume 1, Number 1, p.31-43, (2005)

Fatigue of bridging ceramics: Understanding crack size effects, Kruzic, J. J., Cannon R. M., and Ritchie R. O. , 11th International Conference on Fracture, (2005)

Fatigue threshold R-curves for predicting reliability of ceramics under cyclic loading, Kruzic, J. J., Cannon R. M., Ager J. W., and Ritchie R. O. , Acta Materialia, May, Volume 53, Number 9, p.2595-2605, (2005)

A fracture mechanics and mechanistic approach to the failure of cortical bone, Ritchie, R. O., Kinney J. H., Kruzic J. J., and Nalla R. K. , Fatigue & Fracture of Engineering Materials & Structures, Apr, Volume 28, Number 4, p.345-371, (2005)

Fracture Properties of Cortical Bone and Dentin, Kruzic, J. J., Nalla R. K., Ritchie R. O., and Kinney J. H. , Bioceramics: Materials and Applications V, Ceramic Transactions, Volume 164, p.53–62, (2005)

On the improvement of the ductility of molybdenum by spinel (MgAl₂O₄) particles, Schneibel, J. H., Brady M. P., Kruzic J. J., and Ritchie R. O. , Zeitschrift Fur Metallkunde, Jun, Volume 96, Number 6, p.632-637, (2005)

Mechanistic aspects of fracture and R-curve behavior in human cortical bone, Nalla, R. K., Kruzic J. J., Kinney J. H., and Ritchie R. O. , Biomaterials, Jan, Volume 26, Number 2, p.217-231, (2005)

Mechanistic aspects of in vitro fatigue-crack growth in dentin, Kruzic, J. J., Nalla R. K., Kinney J. H., and Ritchie R. O. , Biomaterials, Apr, Volume 26, Number 10, p.1195-1204, (2005)

Mo-Si-B alloy development, Schneibel, J. H., Brady M. P., III H. M. Meyer, Horton J. A., Kruzic J. J., and Ritchie R. O. , 19th Annual Conference on Fossil Energy Materials, Knoxville, TN, (2005)

Optimizaton of Mo-Si-B intermetallic alloys, Schneibel, J. H., Ritchie R. O., Kruzic J. J., and Tortorelli P. F. , Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, Mar, Volume 36A, Number 3, p.525-531, (2005)

Role of microstructure in promoting fracture and fatigue resistance in Mo-Si-B alloys, Kruzic, J. J., Schneibel J. H., and Ritchie R. O. , Integrative and Interdisciplinary Aspects of Intermetallics, MRS Symposium Proceedings, Volume 842, p.303-308, (2005)

Simple and accurate fracture toughness testing methods for pyrolytic carbon/graphite composites used in heart-valve prostheses, Kruzic, J. J., Kuskowski S. J., and Ritchie R. O. , Journal of Biomedical Materials Research Part A, Sep, Volume 74A, Number 3, p.461-464, (2005)

Time vs. cycle dependence of ex vivo fatigue of human cortical bone, Ritchie, R. O., Nalla R. K., Kruzic J. J., and Kinney J. H. , 11th International Conference on Fracture, (2005)

Cortical bone fracture, Ritchie, R. O., Kinney J. H., Kruzic J. J., and Nalla R. K. , Wiley Encyclopedia of Biomedical Engineering, (2006)

Development of ultra-high temperature molybdenum borosilicides, Schneibel, J. H., Kruzic J. J., and Ritchie R. O. , 20th Annual Conference on Fossil Energy Materials, Knoxville, TN, (2006)

Fatigue of bulk metallic glasses: Role of free volume, Kruzic, J. J., Launey M. E., and Busch R. , Bulk Metallic Glasses, TMS Annual Meeting, p.45-50, (2006)

Fatigue Threshold R-curves for Reliability Predictions in Bridging Materials, Kruzic, J. J., Cannon R. M., and Ritchie R. O. , 9th International Fatigue Congress, Atlanta, GA, (2006)

Fracture and ageing in bone: Toughness and structural characterization, Ritchie, R. O., Nalla R. K., Kruzic J. J., Ager J. W., Balooch G., and Kinney J. H. , Strain, Nov, Volume 42, Number 4, p.225-232, (2006)

Influence of structural relaxation on the fatigue behavior of a Zr_41.25Ti_13.75Ni₁₀CU_12.5Be_22.5 bulk amorphous alloy, Launey, M. E., Busch R., and Kruzic J. J. , Scripta Materialia, Feb, Volume 54, Number 3, p.483-487, (2006)

Kitagawa-Takahashi diagrams define the limiting conditions for cyclic fatigue failure in human dentin, Kruzic, J. J., and Ritchie R. O. , Journal of Biomedical Materials Research Part A, Dec, Volume 79A, Number 3, p.747-751, (2006)

Propagation of surface fatigue cracks in human cortical bone, Kruzic, J. J., Scott J. A., Nalla R. K., and Ritchie R. O. , Journal of Biomechanics, Volume 39, Number 5, p.968-972, (2006)

Role of microstructure in the aging-related deterioration of the toughness of human cortical bone, Nalla, R. K., Kruzic J. J., Kinney J. H., Balooch M., Ager J. W., and Ritchie R. O. , Materials Science & Engineering C-Biomimetic and Supramolecular Systems, Sep, Volume 26, Number 8, p.1251-1260, (2006)

Characterization of fatigue-induced free volume changes in a bulk metallic glass using positron annihilation spectroscopy, Vallery, R. S., Liu M., Gidley D. W., Launey M. E., and Kruzic J. J. , Applied Physics Letters, Dec, Volume 91, Number 26, (2007)

Ductility and fracture toughness of molybdenum with MgAl₂O₄ additions, Gunter, I. M., Schneibel J. H., and Kruzic J. J. , Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, Jun, Volume 458, Number 1-2, p.275-280, (2007)