Preparation of ZrB2 -SiC based ceramics using MoSi2 as sintering aids and explanation using electronic theory of sintering – an elementary literature review
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 12
Abstract
ZrB2 (zirconium diboride)-based ceramics reinforced by 15vol.% whiskers with high density were successfully prepared using MoSi2 as sintering aids. The effects of sintering condition and MoSi2 content on densification behavior, phase composition, and mechanical properties ofw/ZrB2 composites were studied. Nearly, fully dense materials (relative density >99%) were obtained by hot-pressing (HP) at 1700°C–1800°C in flow argon atmosphere. The grain size of ZrB2 phase in the samples sintered by HP at 1700°C–1800°C were very fine, with mean size below 5 μm. Mechanical properties (such as flexural strength, fracture toughness, and Vickers hardness) of the sintered samples were measured. The sample with 15vol.% MoSi2 addition sintered by HP at 1750°C displayed the best mechanical properties.
Authors and Affiliations
Mainak Saha
Keywords
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- EP ID EP393010
- DOI 10.9790/9622-0712066773.
- Views 96
- Downloads 0
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