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Effect of t-ZrO2 Content on Grinding Performance of Fused Zirconia Alumina Abrasive

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Abstract:

Fused zirconia alumina has been broadly applied in abrasive industry due to its excellent strength and toughness. The aim of the present work is to investigate the effect of t-ZrO2 content on grinding performance of fused zirconia alumina. Commercial fused alumina zirconia (ZA25) powder was used to fabricate the particle size of 380-830 μm abrasive samples for grinding experiment by pressure granulation and sintering at different temperatures. Phase identification of abrasives sintered at different temperatures was made by X-ray diffractometry and the correlations between t-ZrO2 content and grinding performance of abrasive were also tested. The results showed that t-ZrO2 content of abrasive decreased with sintering temperature increasing within a range of sintering temperatures from 1375 °C to 1450 °C. Grinding performance of abrasive was enhanced as increasing t-ZrO2 phase in abrasive. The better the toughness of abrasive powders, the less shape and size change of abrasive powders during grinding, this is the reason why the high t-ZrO2 phase contained fused zirconia alumina abrasive exhibit high grinding performance.

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Periodical:

Advanced Materials Research (Volume 873)

Pages:

431-435

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.873.431

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Online since:

December 2013

Authors:

Zhi Jie Liao*, Mu Xiao, Hai Yan Wu, Feng Xia, Ying Chen, J.Z. Xiao

Keywords:

Abrasive, Al2O3, Grind, Zro2

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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