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Sintering behaviour of cobalt ferrite ceramic

Rafferty, Aran ORCID: 0000-0001-6388-7735, Prescott, Tim and Brabazon, Dermot ORCID: 0000-0003-3214-6381 (2008) Sintering behaviour of cobalt ferrite ceramic. Ceramics International, 34 (1). pp. 15-21. ISSN 0272-8842

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Abstract

Pure cobalt ferrite ceramic powder was prepared using standard solid-state ceramic processing. Uniaxially pressed pure cobalt ferrite discs, sintered under isothermal ramp rate and single dwell time conditions, yielded a maximum theoretical density (%Dth) of <90%. Discs made from finer particle size powder yielded a %Dth of 91.5%. Based on dilatometry analysis, a sintering profile comprising non-isothermal sintering, and two-step sintering was devised, yielding discs with %Dth of 96%. Cylindrical rods of pure cobalt ferrite were cold iso-statically pressed and sintered according to the revised sintering profile. Pycnometry analysis was used to quantify the percentages of open and closed pores in the rods after sintering.

Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:Sintering; Ferrites
Subjects:Engineering > Materials
Engineering > Mechanical engineering
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Mechanical and Manufacturing Engineering
Publisher:Elsevier
Official URL:http://dx.doi.org/10.1016/j.ceramint.2006.07.012
Copyright Information:© 2008 Elsevier
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:20356
Deposited On:19 Dec 2014 14:47 by Fran Callaghan . Last Modified 20 Sep 2018 10:40

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