Optimal Sintering Procedure to Fabrication of Functionally Graded Hydroxyapatite-Titanium

Article Preview

Abstract:

Functionally graded metal-ceramic composite was fabricated by pressure-less sintering. The pure metallic component (Ti) and the pure ceramic component (HA) were located at the ends of a cylindrical specimen. Titanium and-Hydroxyapatite were utilized as a metallic and ceramic layer. The target sample thickness was 6 mm with radius cylindrical 20 mm. The sample was made from the cylindrical type of carbon die consisting of 5 layers. The composition of layers were 100%Titanium; 75 % Titanium +25% HA; 50% Titanium +50% HA; 25% Titanium+75% HA, and 100% Hydroxyapatite. The optimum thermal load mapping was obtained experimentally. The properties of all FGM products were characterized by shrinkage, optical-microscope, energy dispersive spectrometry (EDX) scanning electron microscope (SEM). The grade of the FGM material was proven by comparing amount of shrinkage after sintering. Result from optical micrograph, SEM and EDX indicated that the HA-Ti FGM could be produced successfully by using the optimal sintering procedure that was highlighted in this paper.

You might also be interested in these eBooks

Info:

Periodical:

Key Engineering Materials (Volumes 471-472)

Pages:

140-144

Citation:

Online since:

February 2011

Export:

Price:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

[1] S. Suresh, and A. Mortensen, Fundamentals of functionally graded materials: processing and thermomechanical behaviour of graded metals and metal-ceramic composites, IOM Communications Ltd, (1998).

DOI: 10.1179/imr.1997.42.3.85

Google Scholar

[2] F. Watari, A. Yokoyama, M. Omori, T. Hirai, H. Kondo, M. Uo, and T. Kawasaki, Biocompatibility of materials and development to functionally graded implant for bio-medical application. Composites Science and Technology 64 (2004) 893-908.

DOI: 10.1016/j.compscitech.2003.09.005

Google Scholar

[3] M. Schwartz, Encyclopedia of Smart Materials: smart materials, Wiley-Interscience, (2002).

Google Scholar

[4] C. Chenglin, Z. Jingchuan, Y. Zhongda, and W. Shidong, Hydroxyapatite-Ti functionally graded biomaterial fabricated by powder metallurgy. Materials Science and Engineering: A 271 (1999) 95-100.

DOI: 10.1016/s0921-5093(99)00152-5

Google Scholar

[5] C. Chu, J. Zhu, Z. Yin, and P. Lin, Structure optimization and properties of hydroxyapatite-Ti symmetrical functionally graded biomaterial. Materials Science and Engineering A 316 (2001) 205-210.

DOI: 10.1016/s0921-5093(01)01239-4

Google Scholar

[6] H. Kondo, A. Yokoyama, M. Omori, A. Ohkubo, T. Hirai, F. Watari, M. Uo, and T. Kawasaki, Fabrication of titanium nitride/apatite functionally graded implants by spark plasma sintering. Mater Trans 45 (2004) 3156-3162.

DOI: 10.2320/matertrans.45.3156

Google Scholar

[7] X. Xiao, R. Liu, and Y. Zheng, Hydoxyapatite/titanium composite coating prepared by hydrothermal-electrochemical technique. Materials Letters 59 (2005) 1660-1664.

DOI: 10.1016/j.matlet.2005.01.037

Google Scholar

[8] F. Watari, A. Yokoyama, F. Saso, M. Uo, and T. Kawasaki, Fabrication and properties of functionally graded dental implant. Composites Part B: Engineering 28 (1997) 5-11.

DOI: 10.1016/s1359-8368(96)00021-2

Google Scholar

[9] C. Chu, J. Zhu, Z. Yin, and P. Lin, Optimal design and fabrication of hydroxyapatite-Ti asymmetrical functionally graded biomaterial. Materials Science and Engineering A 348 (2003) 244-250.

DOI: 10.1016/s0921-5093(02)00738-4

Google Scholar

[10] M. Pines, and H. Bruck, Pressureless sintering of particle-reinforced metal-ceramic composites for functionally graded materials: Part I. Porosity reduction models. Acta materialia 54 (2006) 1457-1465.

DOI: 10.1016/j.actamat.2005.10.060

Google Scholar

[11] M. Pines, and H. Bruck, Pressureless sintering of particle-reinforced metal# 8211ceramic composites for functionally graded materials: Part II. Sintering model. Acta materialia 54 (2006) 1467-1474.

DOI: 10.1016/j.actamat.2005.10.061

Google Scholar