American Institute of Physics, Journal of Applied Physics, 7(108), p. 073503
DOI: 10.1063/1.3471818
Full text: Unavailable
The functional dependence of stress, elastic modulus, melting point, and their interdependence on the identities bond order, nature, length, and strength of a representative bond of the specimen has been established for deeper insight into the transition from the conventional Hall–Petch relationship HPR to the inverse HPR IHPR for nanostructured TiO 2 . Theoretical reproduction of the observed inverse HPR suggests that the intrinsic competition between the energy-density gain elastic modulus enhancement and the cohesive-energy remnant melting point depression in the grain boundaries originates and the extrinsic competition between the activation and the inhibition of atomic dislocations activates the IHPR. © 2010 American Institute of Physics.