Processing of Injection Moulded of Synthesized HAp by Single Step Wick-Debinding and Sintering

Abstract:

The present study was conducted to investigate the possibility of merging the wick-debinding and sintering of injection-molded ceramic parts into a single-step operation. In this study, the synthesized hydroxyapatite (HAp) feedstock prepared was injection moulded according to ASTM standard C1424-10 to produce green specimens. The green specimens were then debound and sintered through a single step wick-debinding and sintering process by using alumina powder as an embedment agent. The principle of this method is that it carried out at a temperature where the binder is melt, allowing it to flow out of the specimens into pores in the contacting of substrate. Once, the binder is successfully removed from the specimens, sintering process is took place to bond the particle together leading to densification of sintered specimens. From the results, it shows that the binders were successfully removed from the green specimens by capillary suction of the molten binder and single phase of HAp was presented at the sintering temperature of 1000°C.

• Periodical: Advanced Materials Research (Volume 1113)
• Pages: 105-109
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1113.105
• Online since: July 2015
• Authors: Nurul Huda M. Ali*, Istikamah Subuki, Muhammad Hussain Ismail
• Keywords: Alumina Powder, Hydroxyapatite, Sintering, Wick-Debinding

References

[1] M. I. Ramli, A. Arifin, A. Muchtar and N. Muhamad, Journal of Applied Sciences Research, vol. 8, pp.5317-5321, (2013).

[2] H. Ye, X. Y. Liu, and H. Hong, Journal of Materials Processing Technology, vol. 200, pp.12-24, (2008).

[3] L. Gorjan, T. Kosmač, and A. Dakskobler, Ceramics International, vol. 40, pp.887-891, (2014).

DOI: 10.1016/j.ceramint.2013.06.083

[4] R. M. German; and A. Bose, Metal Powder Industries Federation: Princeton, New Jersey, (1997).

[5] S. Md Ani, A. Muchtar, N. Muhamad, and J. A. Ghani, Ceramics International, vol. 40, pp.2819-2824, (2014).

DOI: 10.1016/j.ceramint.2013.10.032

[6] S. W. Kim, H. W. Lee, and H. Song, Ceramics International, vol. 25, pp.671-676, (1999).

[7] L. Gorjan, A. Dakskobler, and T. kosmač, Journal of the European Ceramic Society, vol. 30, pp.3013-3021, (2010).

DOI: 10.1016/j.jeurceramsoc.2010.07.011

[8] N. H. M. Ali, I. Subuki, and M. Hussain Ismail, Advanced Materials Research, vol. 911, pp.72-76, (2014).

[9] E.S. Thian, N.H. Loh, K.A. Khor, and S. B. Tor, Material Latters, vol. 56, p.522–532, (2002).

[10] I. Subuki, N. H. M. Ali, and M. H. Ismail, Advanced Materials Research, vol. 911, pp.366-370, (2014).

[11] ASTM International Designation: C1424−10, in Standard Test Method for Monotonic Compressive Strength of Advanced Ceramics at Ambient Temperature vol. PA 19428-2959, ed. United States, (2010).

[12] B. C. Mutsuddy and R. G. Ford, Ceramic Injection Moulding. London, UK: Chapman & Hall, (1995).

[13] I. Subuki, Injection Moulding of 316L SS Powder using Palm Stearin Based Binder System, Doctoral Dissertation, Mechanical Enginnering, Universiti Teknologi MARA, (2010).

[14] P. Thomas-Vielma, A. Cervera, B. Levenfeld, and A. Várez, Journal of the European Ceramic Society, vol. 28, pp.763-771, (2008).

DOI: 10.1016/j.jeurceramsoc.2007.08.004

[15] S. Bose, M. Roy, and A. Bandyopadhyay, Trends Biotechnol, vol. 30, pp.546-54, Oct (2012).

[16] M. Aminzare, A. Eskandari, M. H. Baroonian, A. Berenov, Z. Razavi Hesabi, M. Taheri, et al., Ceramics International, vol. 39, pp.2197-2206, (2013).

DOI: 10.1016/j.ceramint.2012.09.023