NICKEL HEAT CONTENT AFTER EQUAL CHANNEL ANGULAR PRESSING DEFORMATION |
5 | |
2010 |
THERMODYNAMICS OF NANO- AND MICROCRYSTALLINE MATERIALS |
scientific article | 539.2:541.18.046.8 | ||
120-123 | reaction calorimetry, polycrystal, defect structure, stored energy, equal channel angular pressing |
Using the reaction calorimetry, the difference of formation enthalpy of standard and microcrystalline states has
been found to be 40 ± 10 % of melting enthalpy of nickel microcrystalline samples obtained by equal channel angular
pressing (ECAP). A theoretical model based on equilibrium chemical thermodynamics has been proposed to interpret
the measurement results. |
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