A novel synthesis route and mechanical properties of Si-O-C cured Yytria stabilised zirconia (YSZ)-graphene composite

Kalaimani Markandan, Michelle T.T. Tan, Jitkai Chin, Siew Shee Lim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Polymer-derived Si-O-C ceramics using Yttria Stabilised Zirconia (YSZ) as structural material reinforced by homogenously distributed graphene using CTAB as surfactant were synthesized using gel casting process, cross-linking and sintering. The microstructure and mechanical properties of the graphene reinforced YSZ based ceramic composites have been investigated. Scanning Electron Microscopy (SEM) examinations confirm homogenous distribution of graphene on the fracture surfaces of the sintered composite. Incorporation of small amounts of graphene leads to remarkable mechanical properties improvement in our composites. In particular, the indentation fracture toughness and hardness are 20.31% and 25.78% over monolithic YSZ with maximum values of 4.62 MPa1/2 and 16.6 GPa, respectively. The results show that graphene in ceramic composites lead to toughening of the composites through a range of toughening mechanisms, including graphene pull-out, crack bridging and crack deflection. This study has improved upon existing syntheses methods resulting in the use of lowered costs dispersant for graphene, increase in quality of graphene dispersion within ceramic matrix, remarkable increase in mechanical properties using the new generation ceramic material, YSZ and an environmentally friendly approach of fabricating YSZ-graphene ceramic composite.

LanguageEnglish
Pages3518-3525
Number of pages8
JournalCeramics International
Volume41
Issue number3
Early online date8 Nov 2014
DOIs
Publication statusPublished - Apr 2015
Externally publishedYes

Fingerprint

Graphite
Zirconia
Graphene
Mechanical properties
Composite materials
Toughening
Cracks
zirconium oxide
Yttria stabilized zirconia
Ceramic materials
Indentation
Surface-Active Agents
Fracture toughness
Polymers
Casting
Surface active agents
Sintering
Gels
Hardness
Microstructure

Cite this

Markandan, Kalaimani ; Tan, Michelle T.T. ; Chin, Jitkai ; Lim, Siew Shee. / A novel synthesis route and mechanical properties of Si-O-C cured Yytria stabilised zirconia (YSZ)-graphene composite. In: Ceramics International. 2015 ; Vol. 41, No. 3. pp. 3518-3525.
@article{8ee75dd734d44078bbe8101c2435ddca,
title = "A novel synthesis route and mechanical properties of Si-O-C cured Yytria stabilised zirconia (YSZ)-graphene composite",
abstract = "Polymer-derived Si-O-C ceramics using Yttria Stabilised Zirconia (YSZ) as structural material reinforced by homogenously distributed graphene using CTAB as surfactant were synthesized using gel casting process, cross-linking and sintering. The microstructure and mechanical properties of the graphene reinforced YSZ based ceramic composites have been investigated. Scanning Electron Microscopy (SEM) examinations confirm homogenous distribution of graphene on the fracture surfaces of the sintered composite. Incorporation of small amounts of graphene leads to remarkable mechanical properties improvement in our composites. In particular, the indentation fracture toughness and hardness are 20.31{\%} and 25.78{\%} over monolithic YSZ with maximum values of 4.62 MPa1/2 and 16.6 GPa, respectively. The results show that graphene in ceramic composites lead to toughening of the composites through a range of toughening mechanisms, including graphene pull-out, crack bridging and crack deflection. This study has improved upon existing syntheses methods resulting in the use of lowered costs dispersant for graphene, increase in quality of graphene dispersion within ceramic matrix, remarkable increase in mechanical properties using the new generation ceramic material, YSZ and an environmentally friendly approach of fabricating YSZ-graphene ceramic composite.",
keywords = "Composite, Graphene, Polymer derived ceramic (PDC), Yytria stabilised zirconia (YSZ)",
author = "Kalaimani Markandan and Tan, {Michelle T.T.} and Jitkai Chin and Lim, {Siew Shee}",
year = "2015",
month = "4",
doi = "10.1016/j.ceramint.2014.11.008",
language = "English",
volume = "41",
pages = "3518--3525",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",
number = "3",

}

A novel synthesis route and mechanical properties of Si-O-C cured Yytria stabilised zirconia (YSZ)-graphene composite. / Markandan, Kalaimani; Tan, Michelle T.T.; Chin, Jitkai; Lim, Siew Shee.

In: Ceramics International, Vol. 41, No. 3, 04.2015, p. 3518-3525.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A novel synthesis route and mechanical properties of Si-O-C cured Yytria stabilised zirconia (YSZ)-graphene composite

AU - Markandan, Kalaimani

AU - Tan, Michelle T.T.

AU - Chin, Jitkai

AU - Lim, Siew Shee

PY - 2015/4

Y1 - 2015/4

N2 - Polymer-derived Si-O-C ceramics using Yttria Stabilised Zirconia (YSZ) as structural material reinforced by homogenously distributed graphene using CTAB as surfactant were synthesized using gel casting process, cross-linking and sintering. The microstructure and mechanical properties of the graphene reinforced YSZ based ceramic composites have been investigated. Scanning Electron Microscopy (SEM) examinations confirm homogenous distribution of graphene on the fracture surfaces of the sintered composite. Incorporation of small amounts of graphene leads to remarkable mechanical properties improvement in our composites. In particular, the indentation fracture toughness and hardness are 20.31% and 25.78% over monolithic YSZ with maximum values of 4.62 MPa1/2 and 16.6 GPa, respectively. The results show that graphene in ceramic composites lead to toughening of the composites through a range of toughening mechanisms, including graphene pull-out, crack bridging and crack deflection. This study has improved upon existing syntheses methods resulting in the use of lowered costs dispersant for graphene, increase in quality of graphene dispersion within ceramic matrix, remarkable increase in mechanical properties using the new generation ceramic material, YSZ and an environmentally friendly approach of fabricating YSZ-graphene ceramic composite.

AB - Polymer-derived Si-O-C ceramics using Yttria Stabilised Zirconia (YSZ) as structural material reinforced by homogenously distributed graphene using CTAB as surfactant were synthesized using gel casting process, cross-linking and sintering. The microstructure and mechanical properties of the graphene reinforced YSZ based ceramic composites have been investigated. Scanning Electron Microscopy (SEM) examinations confirm homogenous distribution of graphene on the fracture surfaces of the sintered composite. Incorporation of small amounts of graphene leads to remarkable mechanical properties improvement in our composites. In particular, the indentation fracture toughness and hardness are 20.31% and 25.78% over monolithic YSZ with maximum values of 4.62 MPa1/2 and 16.6 GPa, respectively. The results show that graphene in ceramic composites lead to toughening of the composites through a range of toughening mechanisms, including graphene pull-out, crack bridging and crack deflection. This study has improved upon existing syntheses methods resulting in the use of lowered costs dispersant for graphene, increase in quality of graphene dispersion within ceramic matrix, remarkable increase in mechanical properties using the new generation ceramic material, YSZ and an environmentally friendly approach of fabricating YSZ-graphene ceramic composite.

KW - Composite

KW - Graphene

KW - Polymer derived ceramic (PDC)

KW - Yytria stabilised zirconia (YSZ)

UR - http://www.scopus.com/inward/record.url?scp=84921715803&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2014.11.008

DO - 10.1016/j.ceramint.2014.11.008

M3 - Article

VL - 41

SP - 3518

EP - 3525

JO - Ceramics International

T2 - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 3

ER -