TY - GEN
T1 - Comparative study of tensile properties of uni-directional single-tow sic-matrix composites reinforced with various near-stoichiometric SiC fibers
AU - Ozawa, Kazumi
AU - Katoh, Yutai
AU - Lara-Curzio, Edgar
AU - Snead, Lance L.
AU - Nozawa, Takashi
PY - 2010
Y1 - 2010
N2 - Tensile properties of unidirectional single tow SiC/SiC mini-composites reinforced with four different commercial and experimental near-stoichiometric SiC fibers were evaluated. The composites reinforced with Hi-Nicalon™ Type-S (HNLS), Tyranno™-SA3, experimental Sylramic™ and Sylramic-iBN fibers exhibited ultimate tensile stresses equivalent to ∼73%, ∼53%, ∼69%, and ∼81% of the single fiber strength at 25 mm, respectively. The ultimate tensile stress appeared to increase with the estimated interfacial sliding stress with the exception of the HNLS composite. The HNLS composite seems to have achieved the high tensile strength due to very low interfacial sliding stress arising from the larger radial tensile residual stress and its smooth fiber surface. In contrast, the fracture behavior of the other composites may have been strongly affected by clamping stress produced by the relatively rough fiber surfaces.
AB - Tensile properties of unidirectional single tow SiC/SiC mini-composites reinforced with four different commercial and experimental near-stoichiometric SiC fibers were evaluated. The composites reinforced with Hi-Nicalon™ Type-S (HNLS), Tyranno™-SA3, experimental Sylramic™ and Sylramic-iBN fibers exhibited ultimate tensile stresses equivalent to ∼73%, ∼53%, ∼69%, and ∼81% of the single fiber strength at 25 mm, respectively. The ultimate tensile stress appeared to increase with the estimated interfacial sliding stress with the exception of the HNLS composite. The HNLS composite seems to have achieved the high tensile strength due to very low interfacial sliding stress arising from the larger radial tensile residual stress and its smooth fiber surface. In contrast, the fracture behavior of the other composites may have been strongly affected by clamping stress produced by the relatively rough fiber surfaces.
UR - http://www.scopus.com/inward/record.url?scp=79952418783&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:79952418783
SN - 9780470594674
T3 - Ceramic Engineering and Science Proceedings
SP - 207
EP - 220
BT - Mechanical Properties and Performance of Engineering Ceramics and Composites V - A Collection of Papers Presented at the 34th International Conference on Advanced Ceramics and Composites, ICACC'10
T2 - Mechanical Properties and Performance of Engineering Ceramics and Composites V - 34th International Conference on Advanced Ceramics and Composites, ICACC'10
Y2 - 24 January 2010 through 29 January 2010
ER -