Microstructural and mechanical characterization of W/SiC bonding for structural material in fusion

Microstructural modification of W–SiC bonded plate during high temperature exposure

“…Interfacial phase on W-SiC bonded panels prepared in this work was very similar to those of previous studies [4][5][6]. The thickness of the column-like phase changes along the holding time and temperature of the diffusion bonding, and it was about 40 microns in this work.…”

“…The high temperature exposure test was performed using an electric furnace at temperatures ranging from 1400 • C to 1600 • C in argon atmosphere. The holding time was ranged from 1 h to 20 h. After the exposure tests, the shear strength of samples was investigated by a cantilever shear test method [4,7] and the microstructure was characterized by using of FE-SEM and EPMA.…”

“…Recent study has revealed that tungsten and SiC are able to be bonded by a diffusion bonding without insert http://dx.doi.org/10.1016/j.fusengdes.2015.10.031 0920-3796/© 2015 Elsevier B.V. All rights reserved. material due to the nearly equal coefficient of thermal expansion (CTE) [4]. SiC/SiC composites have excellent properties such as high thermal shock resistance, thermal fatigue resistance and relatively high fracture toughness.…”

SiC/SiC composite heater for IFMIF

“…For the electrical resistivity measurement, tungsten terminal was diffusion bonded and the stability of electrical resistivity heating up to 1000 • C was confirmed [10].…”

Measurement and calculation of neutron leakage spectra from slab samples of beryllium, gallium and tungsten irradiated with 14.8 MeV neutrons

“…W is one of the most promising candidate for spallation targets and other structural materials of CIADS project, as well as an important material in fission and fusion devices [2]. Be is another important material in the fission and fusion devices for multiplying neutrons in the core of fission research reactors and in the blankets of Deuteron-Tritium (D-T) fusion reactors [3].…”