Effect of radiation-induced vacancy saturation on the first-order phase transformation in nanoparticles: insights from a model

• Aram Shirinyan and
• Yuriy Bilogorodskyy

Beilstein J. Nanotechnol. 2024, 15, 1453–1472, doi:10.3762/bjnano.15.117

• /bjnano.15.117 Abstract By employing a model of nanomaterials with polymorphic phase transitions and using a thermodynamic approach to describe the effects of vacancy saturation, irradiation dose, powder dispersion, and surface energies, we demonstrate the possibility of radiation-induced phase

• materials. Keywords: α-phase; β-phase; chemical rate theory; Fe; nanoparticle; nucleation; phase stability diagram; polymorphic phase transision; radiation stability; thermodynamics; vacancy saturation; Introduction Solid metal or ceramic nanoparticles with a diameter in the range of 1–100 nm, when placed

• data, under operating conditions, HDCMs are susceptible to risks such as radiation-induced vacancy saturation (the accumulation of vacancy-type defects), swelling (an increase in linear dimensions and volume upon irradiation), damage, amorphization (crystal-to-glass transition), and other phase