A comprehensive theoretical and experimental study on structural and mechanical properties of Si doped ZnO. (1st July 2017)

• Record Type: Journal Article
• Authors: Bajpai, Gaurav; Srivastava, Tulika; Nasir, Mohd; Tiwari, Saurabh; Bajpai, Shubhra; Rini, E.G.; Biring, Sajal; Sen, Somaditya
• Is Part Of: Scripta materialia. Number 135(2017)
• Page Start: 1
• Page End: 4
• Publication Date: 2017-07-01
• Subjects: Hardness -- Lattice parameter -- ZnO structure -- Mechanical property; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2017.03.022
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Si 4 + is a smaller ion with higher charge compared to Zn 2 + . When incorporated in ZnO lattice, above a certain amount, the Si 4 + ions create defects at the substituted sites. The Zn and O planes are dragged closer to each other by Si substitution while the lattice expansion along c-axis is more than that along a or b axes. However, the c/a ratio decreases continuously. The mechanical property deteriorates with substitution as well at par with the structural changes. Experimentally observed mechanical hardness of Si 4 + substituted ZnO pellets decrease with incorporation of Si following the theoretical trend. Graphical abstract: