Low temperature synthesis of dense and ultrafine grained zirconium diboride compacts by reactive spark plasma sintering. (1st January 2016)

• Record Type: Journal Article
• Authors: Karthiselva, N.S.; Murty, B.S.; Bakshi, Srinivasa R.
• Is Part Of: Scripta materialia. Volume 110(2016)
• Page Start: 78
• Page End: 81
• Publication Date: 2016-01-01
• Subjects: Borides -- Spark plasma sintering -- Mechanical milling -- Mercury intrusion porosimetry -- Nanoindentation; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.08.005
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: Abstract: Dense (>98%) submicron sized monolithic zirconium diboride (ZrB2 ) was fabricated by reactive spark plasma sintering (RSPS) of 8 h ball milled Zr and B elemental mixtures at 1200 °C. During RSPS, ZrB2 formed in-situ and the densification takes place by a two-step process. Plastic flow of ZrB2 resulting from application of higher pressure enhanced densification significantly. Improvement in nanohardness, elastic modulus and indentation fracture toughness were observed with increased sintering pressure.