1 زیست شناسی:: تبدیل فاز
7 Phase Transformations of Nanoparticles 135 7.3 Phase Transformations of Nanoparticles 139 7.4 Phase Transformation and Coagulation 148 however, if the initial grain size is less than about 20 nm an amount of released surface energy, which is in the range of the free enthalpy for the tetragonal- monoclinic phase transformation, is realized. The free enthalpy of formation (DGZrO2 ) and the free enthalpy of the monoclinic-tetragonal phase transformation (DGmonoc-tetr) is plotted for comparison.
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