Fracture behavior of C/SiC composites at elevated temperature

Yoon, Dong Hyun; Lee, Jeong Won; Kim, J.H.; Sihn, Ihn Cheol; Lim, Byung Joo

doi:10.1007/s12206-017-0702-3

Cited by 9 publications

(1 citation statement)

References 3 publications

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“…Yang et al [10] studied the tensile behavior of a 2D C/SiC material from RT to 1200°C by using a mechanical testing machine (CSS-DNS-100, Changchun, China) to load and a furnace to heat the middle part of the specimen. Yoon et al [11] investigated the tensile and compressive properties of a C/SiC composite at RT, 500°C, and 900°C on an MTS 810 universal testing machine equipped with a furnace. In addition, Watanabe et al [12] designed a probe for measuring the plastic deformation of porous thermal barrier coatings (TBCs) and studied the mechanical properties of yttria-stabilized zirconia containing 7 wt % yttria (7YSZ) at temperatures up to 1137°C.…”

Section: Introductionmentioning

confidence: 99%

Fracture Strength Behaviors of Ultra-High-Temperature Materials

Cheng

et al. 2019

Journal of Applied Mechanics

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Ultra-high-temperature materials have been widely used as key components in high-end equipment. However, the existing studies are mainly conducted at room and moderate temperatures. Besides, they are mainly carried out by experiments. Theories on the temperature dependence of fracture strength are rarely reported. In this work, experimental methods for the ultra-high-temperature tensile properties of advanced materials and the elastic–plastic properties of coatings are developed, respectively, based on induction heating and radiation furnace heating technologies. A temperature-dependent fracture strength model for ceramics is proposed in the view of energy. The experimental methods and theoretical model are verified on the 2D plain-weave carbon fiber reinforced silicon carbide thermal structure composite, yttria-stabilized zirconia thermal barrier coating, and Si3N4 ceramics. The study shows that the mechanical properties of materials decrease significantly at ultra-high temperatures. The results are useful for the applications of ultra-high-temperature materials in thermal structure engineering.

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Section: Introductionmentioning

confidence: 99%