Toughened and strengthened silicon carbide ceramics by adding graphene-based fillers

Manuel Belmonte*, Andrés Nistal, Pierre Boutbien, Benito Román-Manso, María I. Osendi, Pilar Miranzo

*Corresponding author for this work

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Graphene nanoplatelets and reduced graphene oxide (rGO) were selected as fillers to develop reinforced silicon carbide (SiC)/graphene composites. The mechanical properties of the materials were investigated as a function of the type of graphene source and graphene content. Composites containing just 5 vol.% of rGOs exhibited an outstanding mechanical performance, increasing both the fracture toughness by ~ 162%, with a maximum value of 8.3 MPa · m1/2, and the strength by ~ 60% (600 MPa) when compared to monolithic SiC. The preferential alignment of the graphene fillers, their dimensions, and the graphene-SiC mechanical interlock are key factors to promote crack shielding mechanisms.

Original languageEnglish
Pages (from-to)127-130
Number of pages4
JournalScripta Materialia
Volume113
Early online date05 Nov 2015
DOIs
Publication statusPublished - 01 Mar 2016
Externally publishedYes

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fillers
Silicon carbide
silicon carbides
Graphene
Fillers
graphene
ceramics
composite materials
Composite materials
silicon carbide
fracture strength
Shielding
Oxides
shielding
Fracture toughness
cracks
alignment
mechanical properties
Cracks

Keywords

  • Ceramic matrix composites (CMC)
  • Fracture
  • Graphene
  • Mechanical properties
  • Toughness

Cite this

Belmonte, M., Nistal, A., Boutbien, P., Román-Manso, B., Osendi, M. I., & Miranzo, P. (2016). Toughened and strengthened silicon carbide ceramics by adding graphene-based fillers. Scripta Materialia, 113, 127-130. https://doi.org/10.1016/j.scriptamat.2015.10.023
Belmonte, Manuel ; Nistal, Andrés ; Boutbien, Pierre ; Román-Manso, Benito ; Osendi, María I. ; Miranzo, Pilar. / Toughened and strengthened silicon carbide ceramics by adding graphene-based fillers. In: Scripta Materialia. 2016 ; Vol. 113. pp. 127-130.
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Belmonte, M, Nistal, A, Boutbien, P, Román-Manso, B, Osendi, MI & Miranzo, P 2016, 'Toughened and strengthened silicon carbide ceramics by adding graphene-based fillers', Scripta Materialia, vol. 113, pp. 127-130. https://doi.org/10.1016/j.scriptamat.2015.10.023

Toughened and strengthened silicon carbide ceramics by adding graphene-based fillers. / Belmonte, Manuel; Nistal, Andrés; Boutbien, Pierre; Román-Manso, Benito; Osendi, María I.; Miranzo, Pilar.

In: Scripta Materialia, Vol. 113, 01.03.2016, p. 127-130.

Research output: Contribution to journalArticle

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AU - Osendi, María I.

AU - Miranzo, Pilar

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Belmonte M, Nistal A, Boutbien P, Román-Manso B, Osendi MI, Miranzo P. Toughened and strengthened silicon carbide ceramics by adding graphene-based fillers. Scripta Materialia. 2016 Mar 1;113:127-130. https://doi.org/10.1016/j.scriptamat.2015.10.023