Authors:
Shweta Singh (Indian Institute of Technology Bombay, India),
Ankit Gurjar (Indian Institute of Technology Bombay, India),
Eshant Bhatia (Indian Institute of Technology Bombay, India),
Ishita Krishnatrey (Indian Institute of Technology Bombay, India),
Seema Negi (Indian Institute of Technology Bombay, India),
Parag Bhargava (Indian Institute of Technology Bombay, India),
Rohit Srivastava (Indian Institute of Technology Bombay, India)
Abstract:
The motivation of this work is to improve fracture toughness and incorporate anti-microbial characteristics in alumina ceramics. In this work, alumina-silver composites are prepared by the addition of 2, 5, 10, and 15 wt. % silver nano-flakes. The microstructural analysis is performed using Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). Mechanical properties like flexural strength, fracture toughness, and microhardness are evaluated. Flexural strength is found to decrease with increased silver content while fracture toughness improved significantly. Antibacterial properties are evaluated on E.coli bacteria. All the samples showed antibacterial activity which improved with increased silver content. The present study establishes alumina|silver composite as an antibacterial material with improved fracture toughness which makes it a potential biomaterial for dental and low load-bearing applications.
DOI:
https://doi.org/10.59499/WP225371864