The effects of heating rate on magnesia doped alumina prepared by SPS

B. Apak; G. Goller; F. C. Sahin; O. Yucel

doi:10.1002/9780470944127.ch1

The effects of heating rate on magnesia doped alumina prepared by SPS

B. Apak^*, G. Goller, F. C. Sahin, O. Yucel

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Istanbul Technical University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In order to achieve fine grained sintered products, 0.1 wt% MgO was doped into alumina powders. Magnesium nitrate [Mg(NO₃)₂. 6H ₂O] with the amount of corresponding the requisite MgO content was added to alumina and the slurry was prepared in ethanol medium. After ball milling and drying, the powders were heated to 750 °C for 1 h in air to decompose magnesium nitrate to magnesia. Doped alumina powders were sintered by using spark plasma sintering under a vacuum with especially high heating rates (120 and 200°C/min). Characterization studies on hardness, density and microstructure were carried out on the sintered specimens. The effects of two heating rates on microstructure, density and hardness of spark plasma sintered alumina ceramics were investigated.

Original language	English
Title of host publication	Mechanical Properties and Performance of Engineering Ceramics and Composites V - A Collection of Papers Presented at the 34th International Conference on Advanced Ceramics and Composites, ICACC'10
Publisher	American Ceramic Society
Pages	3-7
Number of pages	5
Edition	2
ISBN (Print)	9780470594674
DOIs	https://doi.org/10.1002/9780470944127.ch1
Publication status	Published - 2010

Publication series

Name	Ceramic Engineering and Science Proceedings
Number	2
Volume	31
ISSN (Print)	0196-6219

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Apak, B., Goller, G., Sahin, F. C., & Yucel, O. (2010). The effects of heating rate on magnesia doped alumina prepared by SPS. In Mechanical Properties and Performance of Engineering Ceramics and Composites V - A Collection of Papers Presented at the 34th International Conference on Advanced Ceramics and Composites, ICACC'10 (2 ed., pp. 3-7). (Ceramic Engineering and Science Proceedings; Vol. 31, No. 2). American Ceramic Society. https://doi.org/10.1002/9780470944127.ch1

Apak, B. ; Goller, G. ; Sahin, F. C. et al. / The effects of heating rate on magnesia doped alumina prepared by SPS. Mechanical Properties and Performance of Engineering Ceramics and Composites V - A Collection of Papers Presented at the 34th International Conference on Advanced Ceramics and Composites, ICACC'10. 2. ed. American Ceramic Society, 2010. pp. 3-7 (Ceramic Engineering and Science Proceedings; 2).

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abstract = "In order to achieve fine grained sintered products, 0.1 wt% MgO was doped into alumina powders. Magnesium nitrate [Mg(NO3)2. 6H 2O] with the amount of corresponding the requisite MgO content was added to alumina and the slurry was prepared in ethanol medium. After ball milling and drying, the powders were heated to 750 °C for 1 h in air to decompose magnesium nitrate to magnesia. Doped alumina powders were sintered by using spark plasma sintering under a vacuum with especially high heating rates (120 and 200°C/min). Characterization studies on hardness, density and microstructure were carried out on the sintered specimens. The effects of two heating rates on microstructure, density and hardness of spark plasma sintered alumina ceramics were investigated.",

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Apak, B, Goller, G , Sahin, FC & Yucel, O 2010, The effects of heating rate on magnesia doped alumina prepared by SPS. in Mechanical Properties and Performance of Engineering Ceramics and Composites V - A Collection of Papers Presented at the 34th International Conference on Advanced Ceramics and Composites, ICACC'10. 2 edn, Ceramic Engineering and Science Proceedings, no. 2, vol. 31, American Ceramic Society, pp. 3-7. https://doi.org/10.1002/9780470944127.ch1

The effects of heating rate on magnesia doped alumina prepared by SPS. / Apak, B.; Goller, G.; Sahin, F. C. et al.
Mechanical Properties and Performance of Engineering Ceramics and Composites V - A Collection of Papers Presented at the 34th International Conference on Advanced Ceramics and Composites, ICACC'10. 2. ed. American Ceramic Society, 2010. p. 3-7 (Ceramic Engineering and Science Proceedings; Vol. 31, No. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - In order to achieve fine grained sintered products, 0.1 wt% MgO was doped into alumina powders. Magnesium nitrate [Mg(NO3)2. 6H 2O] with the amount of corresponding the requisite MgO content was added to alumina and the slurry was prepared in ethanol medium. After ball milling and drying, the powders were heated to 750 °C for 1 h in air to decompose magnesium nitrate to magnesia. Doped alumina powders were sintered by using spark plasma sintering under a vacuum with especially high heating rates (120 and 200°C/min). Characterization studies on hardness, density and microstructure were carried out on the sintered specimens. The effects of two heating rates on microstructure, density and hardness of spark plasma sintered alumina ceramics were investigated.

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Apak B, Goller G , Sahin FC , Yucel O. The effects of heating rate on magnesia doped alumina prepared by SPS. In Mechanical Properties and Performance of Engineering Ceramics and Composites V - A Collection of Papers Presented at the 34th International Conference on Advanced Ceramics and Composites, ICACC'10. 2 ed. American Ceramic Society. 2010. p. 3-7. (Ceramic Engineering and Science Proceedings; 2). doi: 10.1002/9780470944127.ch1

The effects of heating rate on magnesia doped alumina prepared by SPS

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