Fabrication of liquid phase sintered SiC materials and their characterization

Mechanical properties of silicon carbide sintered with additive Y3Al5O12

“…For the comparison, the flexural strength on SiC ceramics with 10 wt.% of conventional additive which fabricated at a same sintering condition is also shown in Fig. 5 [9]. In spite of less amount of sintering additive, it is clear that SiC ceramics in this study are almost equal with the flexural strength level of conventional SiC ceramics.…”

“…Especially, SiC sample had excellent density of 3.2 g/cm 3 , which corresponds to about 98% of theoretical density, when sintered with 7 wt.% of the additive. This is the less amounts than that of conventional additives [9], and it can be said that Y 3 Al 5 O 12 is very effective additive on sintering of SiC ceramics. …”

Thermal shock properties of 2D-SiCf/SiC composites

“…Majority of R&D researches for the property evaluation of SiC f /SiC composites were also devoted to the establishment of baseline properties such as microstructure, bending strength, tensile strength, associated with the optimization of fabricating conditions [9][10][11][12]. Among the manufacturing processes of SiC f /SiC composites, liquid phase sintering (LPS) process can be recognized as an attractive method for providing the dense SiC matrix with a high crystalline [13,14]. In addition, the utilization of ultra-fine SiC powder with submicron or nano size for the fabrication of SiC f /SiC composites also was very effective * Corresponding author.…”

Microstructure and thermal shock property of liquid phase sintered Cf/SiC composites

“…The efficiency of carbon nano-tube was also investigated for the strengthening of microstructure in PIP-C f /SiC composites [8]. The previous work showed that the infiltration technique of complex matrix slurry for the preparation of fiber preform was very effective for the densification of intra-fiber bundle region in SiC based composites [9]. Liquid phase sintering (LPS) process, which is associated with the transformation of sintering additives around SiC particles, is regarded as a promising method for the production of high crystalline SiC phases in the matrix [10,11].…”