Fabrication and characterization of functionally graded synthetic graphite/phenolic nanocomposites

Ehsan Bafekrpour; George P. Simon; Jana Habsuda; Minoo Naebe; Chunhui Yang; Bronwyn Fox

doi:10.1016/j.msea.2012.02.097

Fabrication and characterization of functionally graded synthetic graphite/phenolic nanocomposites

Ehsan Bafekrpour, George P. Simon, Jana Habsuda, Minoo Naebe, Chunhui Yang, Bronwyn Fox

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

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Abstract

Stepwise functionally graded synthetic graphite/phenolic nanocomposites (FGNs) were fabricated using combined powder stacking and compression molding techniques. The process allowed the fabrication of FGNs with four different microstructure gradient patterns of the same geometry and graphite content, as well as non-graded nanocomposites (NGNs). The FGN with the highest graphite content layer on the top and bottom surfaces and the lowest in the center, showed the highest improvement of 97% in thermo-mechanical properties and the best creep recovery of 34.7% among all FGNs and NGN. Introducing graphite by 20. wt% increased thermal conductivity of phenolic from 0.35 to 0.88. W/(m Â°C) and decreased its electrical resistivity to 20.8 Ω/cm. It was found that the electrical and thermal properties of nanocomposites could be manipulated by changing the gradient patterns.

Original language	English
Pages (from-to)	123-131
Number of pages	9
Journal	Materials Science and Engineering A
Volume	545
DOIs	https://doi.org/10.1016/j.msea.2012.02.097
Publication status	Published - 2012

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10.1016/j.msea.2012.02.097

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title = "Fabrication and characterization of functionally graded synthetic graphite/phenolic nanocomposites",

abstract = "Stepwise functionally graded synthetic graphite/phenolic nanocomposites (FGNs) were fabricated using combined powder stacking and compression molding techniques. The process allowed the fabrication of FGNs with four different microstructure gradient patterns of the same geometry and graphite content, as well as non-graded nanocomposites (NGNs). The FGN with the highest graphite content layer on the top and bottom surfaces and the lowest in the center, showed the highest improvement of 97% in thermo-mechanical properties and the best creep recovery of 34.7% among all FGNs and NGN. Introducing graphite by 20. wt% increased thermal conductivity of phenolic from 0.35 to 0.88. W/(m {\^A}°C) and decreased its electrical resistivity to 20.8 Ω/cm. It was found that the electrical and thermal properties of nanocomposites could be manipulated by changing the gradient patterns.",

author = "Ehsan Bafekrpour and Simon, {George P.} and Jana Habsuda and Minoo Naebe and Chunhui Yang and Bronwyn Fox",

year = "2012",

doi = "10.1016/j.msea.2012.02.097",

language = "English",

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journal = "Materials Science and Engineering A",

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TY - JOUR

T1 - Fabrication and characterization of functionally graded synthetic graphite/phenolic nanocomposites

AU - Bafekrpour, Ehsan

AU - Simon, George P.

AU - Habsuda, Jana

AU - Naebe, Minoo

AU - Yang, Chunhui

AU - Fox, Bronwyn

PY - 2012

Y1 - 2012

N2 - Stepwise functionally graded synthetic graphite/phenolic nanocomposites (FGNs) were fabricated using combined powder stacking and compression molding techniques. The process allowed the fabrication of FGNs with four different microstructure gradient patterns of the same geometry and graphite content, as well as non-graded nanocomposites (NGNs). The FGN with the highest graphite content layer on the top and bottom surfaces and the lowest in the center, showed the highest improvement of 97% in thermo-mechanical properties and the best creep recovery of 34.7% among all FGNs and NGN. Introducing graphite by 20. wt% increased thermal conductivity of phenolic from 0.35 to 0.88. W/(m Â°C) and decreased its electrical resistivity to 20.8 Ω/cm. It was found that the electrical and thermal properties of nanocomposites could be manipulated by changing the gradient patterns.

AB - Stepwise functionally graded synthetic graphite/phenolic nanocomposites (FGNs) were fabricated using combined powder stacking and compression molding techniques. The process allowed the fabrication of FGNs with four different microstructure gradient patterns of the same geometry and graphite content, as well as non-graded nanocomposites (NGNs). The FGN with the highest graphite content layer on the top and bottom surfaces and the lowest in the center, showed the highest improvement of 97% in thermo-mechanical properties and the best creep recovery of 34.7% among all FGNs and NGN. Introducing graphite by 20. wt% increased thermal conductivity of phenolic from 0.35 to 0.88. W/(m Â°C) and decreased its electrical resistivity to 20.8 Ω/cm. It was found that the electrical and thermal properties of nanocomposites could be manipulated by changing the gradient patterns.

UR - http://hdl.handle.net/1959.7/uws:18611

U2 - 10.1016/j.msea.2012.02.097

DO - 10.1016/j.msea.2012.02.097

M3 - Article

SN - 0921-5093

VL - 545

SP - 123

EP - 131

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

ER -

Fabrication and characterization of functionally graded synthetic graphite/phenolic nanocomposites

Abstract

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