The microstructure and physical properties of AlN and SiC ceramics after irradiation with 2 MeV Au ions, 2023, 629: 157466.
Release time:2023-10-19
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Journal:Applied Surface Science
Key Words:Fusion reactor materials, Silicon carbide, Aluminum nitride, Mechanical property, Thermal conductivity
Abstract:The long-term irradiation environment of fusion reactors often induced serious damage to ceramics as the tritium
resistant and functional materials. In this work, silicon carbide (SiC) and aluminum nitride (AlN) ceramics were
irradiated with the flux of 1 × 1016 ions⋅cm 2 by 2 MeV Au ions at 773 K. The results of GIXRD indicated a higher
volumetric swelling of AlN (0.45%) than that of SiC (0.13%) after ion irradiation.Furthermore, the physical
property study investigated the slight variations of mechanical properties (increase ratio of 83.4%) and thermal
conductivity (decrease ratio of 7.75%) for irradiated SiC, which were both lower than the data of irradiated AlN
(237.4% and 11.97% for increase and decrease ratios respectively). This study provides a useful reference for the
selection of tritium resistant and functional materials in nuclear fusion reactors.
First Author:Wei Yang
Indexed by:Journal paper
Correspondence Author:Jing Wang
Document Code:157466
Issue:629
Translation or Not:no
Date of Publication:2023-05-09
