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Title: | Perspective of Wear and Oxidation Resistant Nanostructured Ceramic Oxides for Structural Applications |
Authors: | Swain, A Patra, A Debata, M |
Keywords: | Ceramic Oxides Mechanical Alloying Sintering Mechanical property Tribological property Oxidation |
Issue Date: | Mar-2024 |
Citation: | 4th Global Ceramic Leadership Roundtable Ceramics for Frontier Sectors: Emerging Advances and Prospects (CerAP2024), IIT Roorkee, India, 11-12th March 2024 |
Abstract: | Dispersion of high temperature stable nanostructured Y2O3 in superalloys shows encouraging prospects in improving the mechanical, tribological and high temperature oxidation resistance [1]. Various ceramic oxides such as Y2O3, 50Y2O3-50Al2O3, 50Y2O3-50TiO2, 50Y2O3-50Cr2O3 (in weight%) has been synthesized by mechanical alloying for 20 h in flowing argon atmosphere (flow rate : 100 ml/min). The mechanically alloyed powders are compacted in a uniaxial hydraulic press to fabricate cylindrical pellets. The pellets are consolidated in controlled (Ar/H2) atmosphere to produce bulk compacts. The inert atmosphere synthesis and consolidation hinder the atmospheric oxygen ingress to improve the particle bonding and mechanical properties. The 20 h mechanically alloyed powders show mostly regular and ultrafine particles (<1 μm). The density of the pellets after compaction of all the oxides systems is in the range between 46-56%. Comparative studies of mechanical, tribological and high temperature oxidation of the oxides have been carried out. The present research will provide a roadmap to design ceramic oxides to achieve sustainable structural applications. |
Description: | Copyright belongs to proceeding publisher |
URI: | http://hdl.handle.net/2080/4496 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2024_CerAP_APatra_Perspective.pdf | Presentation | 1.58 MB | Adobe PDF | View/Open Request a copy |
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