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Journal of Materials Science

, Volume 41, Issue 15, pp 5029–5032 | Cite as

Effect of the addition of CaO–MgO–SiO2 glass on the sintering and mechanical properties of Al2O3/3Y-TZP composites

  • X. W. Huang
  • J. C. Yu
  • F. Ding
Letter

It is well known that the higher mechanical properties of Al2O3/3Y-TZP composites are mainly associated with the stress-induced transformation toughening and microcrack toughening [1, 2, 3]. However, in the system of Al2O3/ZrO2, the components have a limited mutual solubility and possess a grain-growth inhibition for each other [4, 5]. As a result, pressureless sintering of Al2O3/3Y-TZP composites was performed at higher temperatures, or in most cases pressure-aided sintering (hot-pressing or hot-isostatic pressing) was applied to facilitate the densification [6, 7]. For the purpose of production cost, it is desirable to sinter Al2O3/3Y-TZP composites pressurelessly at a lower temperature, which is of higher performance.

A variety of additives have been found to be effective in the sintering of ZrO2, such as CuO, B2O3, TiO2 and Mn2O3 [8, 9, 10, 11]. It was also found that the densification of alumina was greatly enhanced by the addition of TiO2–MnO2, and the microstructure development...

Keywords

Fracture Toughness Sinter Temperature Glass Powder Al2O3 Content Pressureless Sinter 

Notes

Acknowledgements

This research was sponsored by the funds from Fujian Provincial Department of Science & Technology (No. 2004J006) and Fuzhou University (No. 2003-XQ-02). The author is also grateful to Prof. S. W. Wang and Prof. X. X. Huang (Shanghai Institute of Ceramics, Chinese Academy of Sciences) for their generous financial support and constructive advice.

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringFuzhou UniversityFuzhouChina
  2. 2.College of Geographical SciencesFujian Normal UniversityFuzhouChina

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