Jump to main content
Jump to site search

Physicomechanical properties of spark plasma sintered carbon nanotube-containing ceramic matrix nanocomposites


Recently, a wide variety of research works have focused on carbon nanotube (CNT) - ceramic matrix nanocomposites. In many cases, these novel materials are produced through conventional powder metallurgy methods including hot pressing, conventional sintering, and hot isostatic pressing. However, spark plasma sintering (SPS) as a novel and efficient consolidation technique is exploited for full densification of high-temperature ceramic systems. In these binary nanocomposites, CNTs are added to ceramic matrices to markedly modify their inferior properties and SPS is employed to produce fully dense compacts. In this review, a broad overview of these systems is provided and the potential influences of CNTs on their functional and structural properties are addressed. The technical challenges are then mentioned and the amending functions of CNTs in these drawbacks are fully highlighted. The used structural classification is material-oriented. It contributes the readers to easily find the material systems of interest. The SPSed CNT-containing ceramic matrix nanocomposites are generally categorized into four main classes: CNT-oxide systems; CNT-nitride systems, CNT-carbide systems, and CNT-boride systems. A large number of original curves and bubble maps are provided to fully summarize the experimental results reported in the literature. They pave the way for obviously selecting the ceramic systems required for each industrial application. The properties in consideration include relative density, hardness, yield strength, fracture toughness, electrical and thermal conductivities, modulus, and flexural strength. These unique graphs facilitate the comparison between the reported results and contribute the reader to easily distinguish the best method for producing the ceramic systems of interest and optimal conditions in which the superior properties can be reached. The authors have concentrated on the microstructure evolution-physicomechanical properties relationships and tried to relate each property to pertinent microstructural phenomena and address why the properties are degraded or enhanced with the variation of SPS conditions or material parameters.

Back to tab navigation

Publication details

The article was received on 16 Mar 2017, accepted on 15 Jul 2017 and first published on 18 Jul 2017

Article type: Review Article
DOI: 10.1039/C7NR01878A
Citation: Nanoscale, 2017, Accepted Manuscript
  •   Request permissions

    Physicomechanical properties of spark plasma sintered carbon nanotube-containing ceramic matrix nanocomposites

    A. Azarniya, S. Sovizi, A. Azarniya, M. R. Rahmani Taji boyuk , T. Varol, P. Nithyadharsenia, H. R. Madaah Hosseini, S. Ramakrishna and M. V. V. Reddy, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR01878A

Search articles by author