PL EN


Preferences help
enabled [disable] Abstract
Number of results
2016 | 129 | 4 | 677-679
Article title

Influence of Borosilicate Addition on Mechanical Properties and Sinterability of 8YSZ

Authors
Content
Title variants
Languages of publication
EN
Abstracts
EN
The influence of borosilicate (BS) addition on the mechanical properties and sinterability of yttria-stabilized zirconia (8YSZ) was investigated using scanning electron microscopy (SEM) and Vickers-hardness test. Undoped and 0.5-10 wt.% BS-doped 8YSZ powders were prepared using a colloidal process. The powders were then pelletized under a pressure of 200 MPa. The BS-doped 8YSZ specimens were sintered at 1200-1400°C for 1 h. SEM results showed that intergranular glass phases were formed at the grain boundaries of 8YSZ, particularly in the 5 and 10 wt.% BS-doped 8YSZ specimens. These intergranular glass phases caused a decrease in grain size of 8YSZ. The grain sizes of the undoped and 0.5 wt% BS-doped 8YSZ specimens were 2.68 μm and 1.83 μm, respectively. The addition of BS to 8YSZ caused a decrease in the relative density. In addition, the relative density was found to be increased with higher sintering temperature. The hardness of 8YSZ decreased with the increase in BS dopant amount, due to presence at the grain boundaries of a BS glassy phase that has a lower hardness than 8YSZ.
Keywords
EN
Contributors
author
  • Harran University, Engineering Faculty, Department of Mechanical Engineering, 63300, Sanliurfa, Turkey
References
  • [1] S. Tekeli, T. Boyacıoğlu, A. Güral, Ceram. Int. 34, 1959 (2008), doi: 10.1016/j.ceramint.2007.07.003
  • [2] F.F. Lange, Fracture Mechanics of Ceramics, Vol. 1, Plenum, New York 1978, p. 3
  • [3] C.A. Anderson, T.K. Gupta, Science and Technology of Zirconia, Advances in Ceramics, Vol. 3, The American Ceramic Society, Columbus, OH 1981, p. 184
  • [4] N. Claussen, M. Ruehle, Science and Technology of Zirconia, Advances in Ceramics, Vol. 3, The American Ceramic Society, Columbus, OH 1981, p. 137
  • [5] C.T. Grain, J. Am. Ceram. Soc. 50, 288 (1967), doi: 10.1111/j.1151-2916.1967.tb15111.x
  • [6] M.G. Scott, J. Mat. Sci. 10, 1527 (1975), doi: 10.1007/BF01031853
  • [7] J.M. Marder, T.E. Mitchell, A.H. Heuer, Acta Metall. 31, 387 (1983), doi: 10.1016/0001-6160(83)90216-X
  • [8] T. Zhang, Z. Zeng, H. Huang, P. Hing, J. Kilner, Mater. Let. 57, 124 (2002), doi: 10.1016/S0167-577X(02)00717-6
  • [9] A.A. Sharif, P.H. Imamura, T.E. Mitchell, M.L. Mecartney, Acta Mater. 46, 3863 (1998), doi: 10.1016/S1359-6454(98)00080-9
  • [10] W.E. Lee, W.M. Rainforth, Ceramic Microstructures: Property Control by Processing, Chapman and Hall, London 1994, p. 255
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv129n4067kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.