Tensile strength silicon nitride fibers

Funayama, M. Arai, Y. Tashiro, H. Aoki, T. Suzuki, K. Tamura, H. Kaya, H. Nishli and T. Isoda, Tensile strength of silicon nitride fibers produced from perhydropolysilazane, Nippon Seramikkusu Kyokai Gakujutsu Ronbushi. 98 [1], 104-107 (1990). 

Figure 14.5 Tensile strength of silicon-carbide and silicon-nitride fibers before and after exposure to high temperature. I ...

FIGURE 3. Variation of room temperature tensile strength with tested volume for 1-D SiC/RBSN containing -24 vol% fibers and hot-pressed silicon nitride [8, 15]. 

Silicon nitride (Si3N4) based fibers are also of interest and several companies are on the verge of introducing a commercial product [20,21]. Dow s HPZ Si3N4 fibers have elastic moduli of 250-260 GPa and tensile strengths of = 2.5 GPa [20]. Tonen s Si3N4 fibers have elastic moduli of 300 GPa and tensile strengths of = 2.5 GPa [21]. By comparison, the elastic modulus of sintered, hot pressed silicon runs approximately 300-350 GPa [22]. 

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