Joining of machined SiC/SiC composites for thermonuclear fusion reactors

He–vacancy interaction and multiple He trapping in small void of silicon carbide

“…The application of SiC/SiC composites in fusion power plant has to face a number of challenges such as irradiation stability, hermetic behavior and joining technology [5,[7][8][9]. A widely accepted standard test method in the field of joining the SiC/SiC composites is missing [10]. So far, the performance of the SiC/SiC composite under neutron irradiation is still an open issue.…”

Light Water Reactor Sustainability Program Status of Silicon Carbide Joining Technology Development

“…Successfully demonstrated techniques include pre-ceramic polymer joining (Yajima et al 1981;Donato, Colombo, and Abadirashid 1995;Lewinsohn et al 2001), glass-ceramics (Ferraris et al 1994), reaction bonding (Lewinsohn et al 2001;Rabin and Moore 1993), active metal / pre-ceramic polymers (Sherwood et al 1997), and active metal solid state displacement techniques (Halbig et al 2006;Radhakrishnan et al 1996;Henager et al 2007). While the strength of the joints produced by these methods appears to be adequate for LWR applications, there is currently a lack of standards for testing ceramics (Ferraris et al 2011(Ferraris et al , 2008) and a variety of tests have been applied to measure the strength of the bonds created using each technique.…”

Development of SiC–SiC joint by reaction bonding method using SiC/C tapes as the interlayer

“…It is well known that the reliability of jointed specimens depends on the weakest part which always presents in the joint. 22,23 So, it is necessary to obtain joints with uniform microstructure and free of defects if we intend to achieve joined specimens with excellent performance. Furthermore, according to the EDS results that the Si atomic contents in the joints were 75.66% and 64.54% for JCS3 (Fig.…”