第三代SiC纤维及其在核能领域的应用现状

王堋人,苟燕子,王浩

Third Generation SiC Fibers for Nuclear Applications

WANG Pengren,GOU Yanzi,WANG Hao

表1 三代SiC纤维的组成和力学特性[5,13-18]

Table 1 Compositions and mechanical properties of three generations SiC fibers[5,13-18]

Trade mark Tensile strength/GPa Young’s modulus/GPa Diameter/μm C/Si First generation Nicalon 200 3.0 200 14 1.33 Tyranno Lox-M 3.3 185 11 1.38 KD-I >2.5 >170 11.5 1.29 Second generation Hi-Nicalon 2.8 270 12 1.39 Tyranno ZE 3.5 233 11 1.34 KD-II >2.7 >250 11.5 1.35-1.40 Third generation Hi-Nicalon S 2.6 340 12.0 1.05 KD-S 2.7 310 11.0 1.08 Tyranno SA 2.8 375 8.0&10.0 1.08 KD-SA 2.5 350 10.5 1.05 Sylramic 3.2 400 10.0 1.01