The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Toughening in Graphene Ceramic Composites
Abstract
The majority of work in graphene nanocomposites has focused on polymer matrices. Here we report for the first time the use of graphene to enhance the toughness of bulk silicon nitride ceramics. Ceramics are ideally suited for high-temperature applications but suffer from poor toughness. Our approach uses graphene platelets (GPL) that are homogeneously dispersed with silicon nitride particles and densified, at ∼1650 °C, using spark plasma sintering. The sintering parameters are selected to enable the GPL to survive the harsh processing environment, as confirmed by Raman spectroscopy. We find that the ceramic's fracture toughness increases by up to ∼235% (from ∼2.8 to ∼6.6 MPa·m(1/2)) at ∼1.5% GPL volume fraction. Most interestingly, novel toughening mechanisms were observed that show GPL wrapping and anchoring themselves around individual ceramic grains to resist sheet pullout. The resulting cage-like graphene structures that encapsulate the individual grains were observed to deflect propagating cracks in not just two but three dimensions.
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Cites
Superior Thermal Conductivity of Single-Layer Graphene
Balandin, A. A., Ghosh, S., Bao, W., Calizo, I., Teweldebrhan, D., Miao, F., & Lau, C. N. (2008) · Nano Letters · doi:10.1021/nl0731872 · Cited by 13,823
Graphene-based composite materials
Stankovich, S., Dikin, D. A., Dommett, G. H. B., Kohlhaas, K. M., Zimney, E. J., Stach, E. A., Piner, R. D., Nguyen, S. T., & Ruoff, R. S. (2006) · Nature · doi:10.1038/nature04969 · Cited by 12,922
Cited by
Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems
Ferrari, A. C., Bonaccorso, F., Fal'ko, V., Novoselov, K. S., Roche, S., Bøggild, P., Borini, S., Koppens, F. H. L., Palermo, V., Pugno, N., et al. (2015) · Nanoscale · doi:10.1039/c4nr01600a · Cited by 3,027
Recent advances in the development of aerospace materials
Zhang, X., Chen, Y., & Hu, J. (2018) · Progress in Aerospace Sciences · doi:10.1016/j.paerosci.2018.01.001 · Cited by 1,235
Reinforcing Effects of Graphene Oxide on Portland Cement Paste
Gong, K., Pan, Z., Korayem, A. H., Qiu, L., Li, D., Collins, F., Wang, C. M., & Duan, W. H. (2015) · Journal of Materials in Civil Engineering · doi:10.1061/(asce)mt.1943-5533.0001125 · Cited by 772
Hwang, J., Yoon, T., Jin, S. H., Lee, J., Kim, T., Hong, S. H., & Jeon, S. (2013) · Advanced Materials · doi:10.1002/adma.201302495 · Cited by 766
Fast and fully-scalable synthesis of reduced graphene oxide
Abdolhosseinzadeh, S., Asgharzadeh, H., & Seop Kim, H. (2015) · Scientific Reports · doi:10.1038/srep10160 · Cited by 667
Metadata
- Authors
- Walker, L. S., Marotto, V. R., Reif, J., Koratkar, N., & Corral, E. L.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-03-28
- Volume
- 5
- Issue
- 4
- Pages
- 3182-3190
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2322274791
- Cited by
- 652
- References
- 2
- FWCI
- 39.14
- Type
- journal article
- Language
- en
- Open access
- closed
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