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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Effect of Y2O3 on Microstructure and Hardness of Honeycomb Ceramics
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 1408-1411)
Author(s): Min-sheng Yuan, College of Materials and Metallurgy, Guizhou University, Guiyang, China, 550003
Qi-bin Liu, College of Materials and Metallurgy, Guizhou University, Guiyang, China, 550003
Abstract: To improve the sintering quality and microstructure as well as properties of the honeycomb ceramics, honeycomb ceramics doped with different Y2O3 contents were fabricated by traditional solid ceramic technique. The microstructure, density and hardness of the samples were investigated by SEM, Archimedes principle and HV hardness tester. The results show that with the increasement of the Y2O3 content, the grain size of the samples decreases, the density and hardness increases gradually. When Y2O3 content is up to 0.07 wt. %, the grain size becomes finest. The greatest value of density and the hardness is 93.01% and Hv289.52 respectively. When the Y2O3 content is up to 0.10 wt. %, the grain size of the samples conversely becomes much coarse, the density and the hardness decreases.
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