Fabrication and tensile behaviors of mini-C/SiC composites reinforced by Si3N4 nanowires

Kaiyuan Li; Juan Jiang; Yiguang Wang

doi:10.1016/j.msea.2015.01.009

Fabrication and tensile behaviors of mini-C/SiC composites reinforced by Si₃N₄ nanowires

Kaiyuan Li, Juan Jiang, Yiguang Wang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

The carbon fiber tows covered by Si₃N₄ nanowires were densified using chemical vapor infiltration (CVI) technique to form mini-C/SiC composites reinforced by Si₃N₄ nanowires (Mini-C/SiC-Si₃N₄-NW). The tensile behaviors of the composites were examined, and the associated damage evolutions were monitored by the acoustic emission (AE) method. Compared with the traditional mini-C/SiC composites (Mini-C/SiC), the matrix strength and fracture strength of Mini-C/SiC-Si₃N₄-NW were increased by about 100% and 8%, respectively, due to the introducing of Si₃N₄ nanowires reinforcements. The density of Si₃N₄ nanowires and volume fraction of carbon fibers played important roles in the matrix strength and fracture strength of the mini-composites, respectively. Moreover, owning to the extra deposition surfaces provided by the Si₃N₄ nanowires, the CVI cycles of Mini-C/SiC-Si₃N₄-NW were 50% shorter than that of the Mini-C/SiC.

Original language	English
Pages (from-to)	241-248
Number of pages	8
Journal	Materials Science and Engineering: A
Volume	627
DOIs	https://doi.org/10.1016/j.msea.2015.01.009
Publication status	Published - 1 Mar 2015
Externally published	Yes

Keywords

Fracture strength
Matrix strength
Mini-C/SiC composites
SiN nanowire
Tensile behavior

Access to Document

10.1016/j.msea.2015.01.009

Cite this

@article{3783e2406f82457183cb19165f1c4715,

title = "Fabrication and tensile behaviors of mini-C/SiC composites reinforced by Si3N4 nanowires",

abstract = "The carbon fiber tows covered by Si3N4 nanowires were densified using chemical vapor infiltration (CVI) technique to form mini-C/SiC composites reinforced by Si3N4 nanowires (Mini-C/SiC-Si3N4-NW). The tensile behaviors of the composites were examined, and the associated damage evolutions were monitored by the acoustic emission (AE) method. Compared with the traditional mini-C/SiC composites (Mini-C/SiC), the matrix strength and fracture strength of Mini-C/SiC-Si3N4-NW were increased by about 100% and 8%, respectively, due to the introducing of Si3N4 nanowires reinforcements. The density of Si3N4 nanowires and volume fraction of carbon fibers played important roles in the matrix strength and fracture strength of the mini-composites, respectively. Moreover, owning to the extra deposition surfaces provided by the Si3N4 nanowires, the CVI cycles of Mini-C/SiC-Si3N4-NW were 50% shorter than that of the Mini-C/SiC.",

keywords = "Fracture strength, Matrix strength, Mini-C/SiC composites, SiN nanowire, Tensile behavior",

author = "Kaiyuan Li and Juan Jiang and Yiguang Wang",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = mar,

day = "1",

doi = "10.1016/j.msea.2015.01.009",

language = "English",

volume = "627",

pages = "241--248",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Fabrication and tensile behaviors of mini-C/SiC composites reinforced by Si3N4 nanowires

AU - Li, Kaiyuan

AU - Jiang, Juan

AU - Wang, Yiguang

PY - 2015/3/1

Y1 - 2015/3/1

N2 - The carbon fiber tows covered by Si3N4 nanowires were densified using chemical vapor infiltration (CVI) technique to form mini-C/SiC composites reinforced by Si3N4 nanowires (Mini-C/SiC-Si3N4-NW). The tensile behaviors of the composites were examined, and the associated damage evolutions were monitored by the acoustic emission (AE) method. Compared with the traditional mini-C/SiC composites (Mini-C/SiC), the matrix strength and fracture strength of Mini-C/SiC-Si3N4-NW were increased by about 100% and 8%, respectively, due to the introducing of Si3N4 nanowires reinforcements. The density of Si3N4 nanowires and volume fraction of carbon fibers played important roles in the matrix strength and fracture strength of the mini-composites, respectively. Moreover, owning to the extra deposition surfaces provided by the Si3N4 nanowires, the CVI cycles of Mini-C/SiC-Si3N4-NW were 50% shorter than that of the Mini-C/SiC.

AB - The carbon fiber tows covered by Si3N4 nanowires were densified using chemical vapor infiltration (CVI) technique to form mini-C/SiC composites reinforced by Si3N4 nanowires (Mini-C/SiC-Si3N4-NW). The tensile behaviors of the composites were examined, and the associated damage evolutions were monitored by the acoustic emission (AE) method. Compared with the traditional mini-C/SiC composites (Mini-C/SiC), the matrix strength and fracture strength of Mini-C/SiC-Si3N4-NW were increased by about 100% and 8%, respectively, due to the introducing of Si3N4 nanowires reinforcements. The density of Si3N4 nanowires and volume fraction of carbon fibers played important roles in the matrix strength and fracture strength of the mini-composites, respectively. Moreover, owning to the extra deposition surfaces provided by the Si3N4 nanowires, the CVI cycles of Mini-C/SiC-Si3N4-NW were 50% shorter than that of the Mini-C/SiC.

KW - Fracture strength

KW - Matrix strength

KW - Mini-C/SiC composites

KW - SiN nanowire

KW - Tensile behavior

UR - http://www.scopus.com/inward/record.url?scp=84921509694&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2015.01.009

DO - 10.1016/j.msea.2015.01.009

M3 - Article

AN - SCOPUS:84921509694

SN - 0921-5093

VL - 627

SP - 241

EP - 248

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Fabrication and tensile behaviors of mini-C/SiC composites reinforced by Si₃N₄ nanowires

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this