TY - JOUR
T1 - Effects of single-phase and co-deposited interphases on mechanical properties of T700TM-C/SiC minicomposites
T2 - experiment and theory prediction
AU - Su, Kang
AU - Chen, Zhaoke
AU - Li, Longbiao
AU - Zhang, Zhongwei
AU - Xiong, Xiang
N1 - Publisher Copyright:
© 2023 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2023
Y1 - 2023
N2 - Experimental and theory investigations on the effects of single-phase (PyC) and co-deposited (PyC+SiC) interphases on the mechanical properties of T700TM-C/SiC minicomposites were conducted. Monotonic tensile tests and fiber’s push-in tests were conducted to obtain the minicomposite’s macro tensile mechanical properties and micro interface properties. The tensile strength was analyzed via a two-parameter Weibull distribution. The failure mechanism was obtained by fiber’s push-in tests and characterized by fracture morphology, and a damage-based micromechanical constitutive model was adopted to predict the tensile stress-strain response and interface debonding ratio (η) of C/SiC minicomposites with different interphases. For C/SiC, the experimental tensile curves were linearly till final tensile fracture with the lowest tensile strength and failure strain, due to the low interface shear strength (i.e., τ iss = 50.8 ± 15.3 MPa). For C/(PyC)300 nm/SiC, the minicomposite with the moderate ISS (i.e., τ iss = 62.2 ± 5.9 MPa) possessed the highest tensile strength and failure strain with the highest interface debonding ratio (i.e., η max = 0.95). For C/(PyC+SiC)/SiC, the tensile strength and strain were both lower than those of C/(PyC)/SiC due to the lower η.
AB - Experimental and theory investigations on the effects of single-phase (PyC) and co-deposited (PyC+SiC) interphases on the mechanical properties of T700TM-C/SiC minicomposites were conducted. Monotonic tensile tests and fiber’s push-in tests were conducted to obtain the minicomposite’s macro tensile mechanical properties and micro interface properties. The tensile strength was analyzed via a two-parameter Weibull distribution. The failure mechanism was obtained by fiber’s push-in tests and characterized by fracture morphology, and a damage-based micromechanical constitutive model was adopted to predict the tensile stress-strain response and interface debonding ratio (η) of C/SiC minicomposites with different interphases. For C/SiC, the experimental tensile curves were linearly till final tensile fracture with the lowest tensile strength and failure strain, due to the low interface shear strength (i.e., τ iss = 50.8 ± 15.3 MPa). For C/(PyC)300 nm/SiC, the minicomposite with the moderate ISS (i.e., τ iss = 62.2 ± 5.9 MPa) possessed the highest tensile strength and failure strain with the highest interface debonding ratio (i.e., η max = 0.95). For C/(PyC+SiC)/SiC, the tensile strength and strain were both lower than those of C/(PyC)/SiC due to the lower η.
KW - C/SiC
KW - fiber’s push-in
KW - interphases
KW - mechanical properties
KW - tensile
UR - http://www.scopus.com/inward/record.url?scp=85148522182&partnerID=8YFLogxK
U2 - 10.1080/09276440.2023.2179247
DO - 10.1080/09276440.2023.2179247
M3 - Article
AN - SCOPUS:85148522182
SN - 0927-6440
VL - 30
SP - 447
EP - 466
JO - Composite Interfaces
JF - Composite Interfaces
IS - 5
ER -