Irradiation Spectrum and Ionization-Induced Diffusion Effects in Ceramics

Thermal Diffusivity of Ceramics During Neutron Irradiation

Ion Irradiation Induced Effects in Metal Nanostructures

High resolution transmission electron microscopy (HRTEM) and Rutherford backscattering spectrometry (RBS) are used to study the ion induced effects in Au, Ag nanostructures grown on Si and thermally grown SiO2 substrates. Au and Ag films (∼ 2 nm) are prepared by thermal evaporation under high vacuum condition at room temperature (RT). These films were irradiated with MeV Au ions also at RT. Ver...

patterns and variations in native and non-native interlanguage pragmatic rating: effects of rater training, intercultural proficiency, and self-assessment

although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...

Radiation Effects in Nuclear Ceramics

Due to outstanding physicochemical properties, ceramics are key engineering materials in many industrial domains. The evaluation of the damage created in ceramics employed in radiative media is a challenging problem for electronic, space, and nuclear industries. In this latter field, ceramics can be used as immobilization forms for radioactive wastes, inert fuel matrices for actinide transmutat...

TOPICAL REVIEW Diffusion and Ionic Conduction in Nanocrystalline Ceramics

We review case studies of diffusion in nanocrystalline ceramics, i. e. polycrystalline non-metallic materials with average grain sizes typically in the range from 5 nm to 50 nm. The experimental methods applied are on the one hand tracer diffusion or conductivity methods which are sensitive to macroscopic transport, on the other hand NMR techniques which, complementarily to the previous ones, g...