HREM and EDS analysis of sintered SiC fibre reinforced MAS glass composites

K. Nagahisa; M. Yoshida; E. Abe; H. Fukunaga; G. Sasaki

doi:10.1093/jmicro/51.supplement.s159

HREM and EDS analysis of sintered SiC fibre reinforced MAS glass composites

K. Nagahisa^*, M. Yoshida, E. Abe, H. Fukunaga, G. Sasaki

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

A polycrystalline-sintered SiC fibre reinforced magnesium-aluminosilicate (MAS) glass composite was fabricated by hot-pressing. The unidirectionally reinforced composite with a fibre volume fraction (V_f) of 50% and density of 2.84 g cm^-3 was obtained. The matrix was composed of a glass phase, and Mg₂Al₄Si₅O₁₈ and ZnAl₂O₄ crystalline phases. The three-point flexural strength and quasi-static adsorbed energy of the composites at room temperature were 500 MPa and 6000 J m^-2, respectively. A SiO₂-rich glass layer was formed around the fibre. Furthermore, a 5-40 nm wide carbon-rich silicon-oxycarbide interphase with a layered structure was determined between the fibre and the SiO₂-rich glass layer. The formation of both layers was caused by super-saturated oxygen which was contained in the raw glass powder. The preferable mechanical properties are due to the nano-scale interphase which allows for suitable interfacial bonding.

Original language	English
Pages (from-to)	S159-S164
Journal	Journal of Electron Microscopy
Volume	51
Issue number	SUPPL.
DOIs	https://doi.org/10.1093/jmicro/51.supplement.s159
Publication status	Published - 2002
Externally published	Yes

Keywords

CMC
HREM
Interphase
MAS glass
Sintered SiC fiber
TEM-EDS

ASJC Scopus subject areas

Instrumentation

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10.1093/jmicro/51.supplement.s159

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@article{1286d92b05124079aa7f4a5b94b2fa4f,

title = "HREM and EDS analysis of sintered SiC fibre reinforced MAS glass composites",

abstract = "A polycrystalline-sintered SiC fibre reinforced magnesium-aluminosilicate (MAS) glass composite was fabricated by hot-pressing. The unidirectionally reinforced composite with a fibre volume fraction (Vf) of 50% and density of 2.84 g cm-3 was obtained. The matrix was composed of a glass phase, and Mg2Al4Si5O18 and ZnAl2O4 crystalline phases. The three-point flexural strength and quasi-static adsorbed energy of the composites at room temperature were 500 MPa and 6000 J m-2, respectively. A SiO2-rich glass layer was formed around the fibre. Furthermore, a 5-40 nm wide carbon-rich silicon-oxycarbide interphase with a layered structure was determined between the fibre and the SiO2-rich glass layer. The formation of both layers was caused by super-saturated oxygen which was contained in the raw glass powder. The preferable mechanical properties are due to the nano-scale interphase which allows for suitable interfacial bonding.",

keywords = "CMC, HREM, Interphase, MAS glass, Sintered SiC fiber, TEM-EDS",

author = "K. Nagahisa and M. Yoshida and E. Abe and H. Fukunaga and G. Sasaki",

year = "2002",

doi = "10.1093/jmicro/51.supplement.s159",

language = "English",

volume = "51",

pages = "S159--S164",

journal = "Journal of Electron Microscopy",

issn = "0022-0744",

publisher = "Japanese Society of Microscopy",

number = "SUPPL.",

}

TY - JOUR

T1 - HREM and EDS analysis of sintered SiC fibre reinforced MAS glass composites

AU - Nagahisa, K.

AU - Yoshida, M.

AU - Abe, E.

AU - Fukunaga, H.

AU - Sasaki, G.

PY - 2002

Y1 - 2002

N2 - A polycrystalline-sintered SiC fibre reinforced magnesium-aluminosilicate (MAS) glass composite was fabricated by hot-pressing. The unidirectionally reinforced composite with a fibre volume fraction (Vf) of 50% and density of 2.84 g cm-3 was obtained. The matrix was composed of a glass phase, and Mg2Al4Si5O18 and ZnAl2O4 crystalline phases. The three-point flexural strength and quasi-static adsorbed energy of the composites at room temperature were 500 MPa and 6000 J m-2, respectively. A SiO2-rich glass layer was formed around the fibre. Furthermore, a 5-40 nm wide carbon-rich silicon-oxycarbide interphase with a layered structure was determined between the fibre and the SiO2-rich glass layer. The formation of both layers was caused by super-saturated oxygen which was contained in the raw glass powder. The preferable mechanical properties are due to the nano-scale interphase which allows for suitable interfacial bonding.

AB - A polycrystalline-sintered SiC fibre reinforced magnesium-aluminosilicate (MAS) glass composite was fabricated by hot-pressing. The unidirectionally reinforced composite with a fibre volume fraction (Vf) of 50% and density of 2.84 g cm-3 was obtained. The matrix was composed of a glass phase, and Mg2Al4Si5O18 and ZnAl2O4 crystalline phases. The three-point flexural strength and quasi-static adsorbed energy of the composites at room temperature were 500 MPa and 6000 J m-2, respectively. A SiO2-rich glass layer was formed around the fibre. Furthermore, a 5-40 nm wide carbon-rich silicon-oxycarbide interphase with a layered structure was determined between the fibre and the SiO2-rich glass layer. The formation of both layers was caused by super-saturated oxygen which was contained in the raw glass powder. The preferable mechanical properties are due to the nano-scale interphase which allows for suitable interfacial bonding.

KW - CMC

KW - HREM

KW - Interphase

KW - MAS glass

KW - Sintered SiC fiber

KW - TEM-EDS

UR - http://www.scopus.com/inward/record.url?scp=0036294846&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036294846&partnerID=8YFLogxK

U2 - 10.1093/jmicro/51.supplement.s159

DO - 10.1093/jmicro/51.supplement.s159

M3 - Article

AN - SCOPUS:0036294846

SN - 0022-0744

VL - 51

SP - S159-S164

JO - Journal of Electron Microscopy

JF - Journal of Electron Microscopy

IS - SUPPL.

ER -

HREM and EDS analysis of sintered SiC fibre reinforced MAS glass composites

Abstract

Keywords

ASJC Scopus subject areas

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