Effect of Cerium and Lanthanum Addition on Mechanical Properties of Bismuth Titanate Ceramics

Nina Pavlovic; Dragan Rajnovic; L. Sidjanin; Vladimir V. Srdic

doi:10.4028/www.scientific.net/KEM.409.330

Paper Titles

Investigation of γ-Alon Structural Evolution during Sintering and Hot-Pressing
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Effect of Low Temperature Degradation on Scratch Behaviour of 3Y-TZP
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Fracture Properties of Basalt Fibre Composites with Cured or Pyrolysed Matrix
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Effect of Cerium and Lanthanum Addition on Mechanical Properties of Bismuth Titanate Ceramics
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Modification of the Density-Pressure Relationship due to the Internal Friction and Cohesion of a Powder Mass Undergoing Closed Die Compaction
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Mechanical and Fractographic Analyses of Monolithic Si₃N₄ Ceramics during Impact Testing
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The Fabrication and Properties of Biscuit-Sintered Y-TZP Ceramics for Dental Applications
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 409Effect of Cerium and Lanthanum Addition on...

Effect of Cerium and Lanthanum Addition on Mechanical Properties of Bismuth Titanate Ceramics

Abstract:

Cerium- and lanthanum- substituted bismuth titanate (Bi4-xAxTi3O12; where A=La or Ce, and x=0, 0.5 and 1) ceramics were prepared from nanopowders synthesized by coprecipitation method. The as-synthesized powders were calcined, uniaxially pressed and finally sintered at 1050°C. It was shown that sintering behaviour, phase composition and grain morphology of the obtained ceramics were influenced by the presence of lanthanum and especially cerium ions in the titanate structure. Mechanical properties (hardness and fracture toughness) were measured at room temperature on polished sample surfaces using a Vickers microhardness tester. The hardness values for of bismuth titanate based ceramics were in the range for some other important perovskite titanate, whereas their fracture toughness was somewhat higher.

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Periodical:

Key Engineering Materials (Volume 409)

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330-333

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.409.330

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Online since:

March 2009

Authors:

Nina Pavlovic, Dragan Rajnovic, L. Sidjanin, Vladimir V. Srdic

Keywords:

Bismuth Titanate, Ceramic, Fracture Toughness, Hardness

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References

[1] B. Jimenez, P. Duran-Martin, R.J. Jimenez-Rioboo and R. Jimenez: J. Phys.: Condens. Matter. 12 (2000), p.3883.

Google Scholar

[2] S.E. Cummins and L.E. Cross: J. Appl. Phys. Vol. 39 (1968), p.2268.

Google Scholar

[3] M. Villegas, T. Jardiel, A.C. Caballero, J.F. Fernandez: J. Electroceram. Vol. 13 (2004), p.543.

Google Scholar

[4] L. Zhang, R. Chu, S. Zhao, G. Li and Q. Yin: Mater. Sci. Eng. B Vol. 116 (2005), p.99.

Google Scholar

[5] R. Tickoo, R.P. Tandon, K.K. Bamzai , P.N. Kotru: Mater. Sci. Eng. B Vol. 110 (2004), p.177.

Google Scholar

[6] A. Garg and D.C. Agrawal: Mater. Sci. Eng. B Vol. 86 (2001), p.134.

Google Scholar

[7] N. Pavlovic, D. Kancko and V.V. Srdic: submitted to Process. Appl. Ceram. (2008).

Google Scholar

[8] A.Z. Simoes, C. Quinelato, A. Ries, B.D. Stojanovic, E. Longo and J.A. Varela: Mater. Chem. Phys. Vol. 98 (2006), p.481.

Google Scholar

[9] A.G. Evans and E.A. Charles: J. Am. Ceram. Soc. Vol. 59 [7-8] (1976), p.371.

Google Scholar

[10] N. Pavlovic and V.V. Srdic: Mater. Res. Bull., 2008, doi. 10. 1016/j. materresbull. 2008. 09. 005.

Google Scholar

[11] H. Bucle: Metall. Rev. Vol. 4 (1950), p.13.

Google Scholar

[12] J.R. Pandya, L.J. Bhagia and A.J. Shah: Bull. Mater. Sci. 5 (1983), p.79.

Google Scholar

[13] S. Jiansirisomboon, K. Songsiri and T. Tunkasiri: Current Appl. Phys. Vol. 6 (2006), p.299.

Google Scholar

[14] W.H. Tuan and S.K. Lin: Ceram. Int. Vol. 25 (1999), p.35.

Google Scholar