Silicon carbide ceramics: Mechanical activation, combustion and spark plasma sintering. Issue 11 (15th August 2016)

• Record Type: Journal Article
• Authors: Moskovskikh, D.O.; Song, Y.; Rouvimov, S.; Rogachev, A.S.; Mukasyan, A.S.
• Is Part Of: Ceramics international. Volume 42:Issue 11(2016)
• Page Start: 12686
• Page End: 12693
• Publication Date: 2016-08-15
• Subjects: Ceramics -- Silicon carbide -- Nanocomposite -- High-energy ball milling -- Mechanical activation -- Combustion synthesis -- Spark plasma sintering; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.05.018
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Single-stage fabrication of SiC ceramics by a combination of self-propagating high temperature synthesis (SHS) and spark plasma sintering (SPS) is reported. SHS+SPS is demonstrated to be an efficient method for production of SiC ceramics with density 3.1 g/cm 3, hardness of 24 GPa and toughness of 5 MPa m 1/2 . The starting material for the process is fine (50–300 nm in size) highly reactive powder, which involves composite particles of elemental carbon and silicon. This powder was prepared using a high-energy ball milling (HEBM). To optimize precursor preparation conditions, the structure transformation in nano-composite Si/C particles at different HEBM stages is also investigated.