Porous titanium manufactured by a novel powder tapping method using spherical salt bead space holders: Characterisation and mechanical properties

doi:10.1016/j.jmbbm.2015.04.018

	Porous titanium manufactured by a novel powder tapping method using spherical salt bead space holders: Characterisation and mechanical properties
	Jia, Jiangang 1; Siddiq, Abdur R.2; Kennedy, Andrew R.2
刊名	JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
	2015-08
卷号	48 页码:229-240
关键词	Porous metal Titanium Powder metallurgy
ISSN号	1751-6161
DOI	10.1016/j.jmbbm.2015.04.018
英文摘要	Porous Ti with open porosity in the range of 70-80% has been made using Ti powder and a particulate leaching technique using porous, spherical, NaCl beads. By incorporating the Ti powder into a pre-existing network of salt beads, by tapping followed by compaction, salt dissolution and "sintering", porous structures with uniform density, pore and strut sizes and a predictable level of connectivity have been produced, showing a significant improvement on the structures made by conventional powder mixing processes. Parts made using beads with sizes in the range of 0.5-1.0 mm show excellent promise as porous metals for medical devices, showing structures and porosities similar to those of commercial porous metals used in this sector, with inter-pore connections that are similar to trabecular bone. The elastic modulus (0.86 GPa) is lower than those for commercial porous metals and more closely matches that of trabecular bone and good compressive yield strength is retained (21 MPa). The ability to further tailor the structure, in terms of the density and the size of the pores and interconnections has also been demonstrated by immersion of the porous components in acid. (C) 2015 Elsevier Ltd. All rights reserved.
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000356208500022
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34006]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Kennedy, Andrew R.
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Univ Nottingham, Fac Engn, Mfg Res Div, Nottingham NG7 2RD, England
推荐引用方式 GB/T 7714	Jia, Jiangang,Siddiq, Abdur R.,Kennedy, Andrew R.. Porous titanium manufactured by a novel powder tapping method using spherical salt bead space holders: Characterisation and mechanical properties[J]. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,2015,48:229-240.
APA	Jia, Jiangang,Siddiq, Abdur R.,&Kennedy, Andrew R..(2015).Porous titanium manufactured by a novel powder tapping method using spherical salt bead space holders: Characterisation and mechanical properties.JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,48,229-240.
MLA	Jia, Jiangang,et al."Porous titanium manufactured by a novel powder tapping method using spherical salt bead space holders: Characterisation and mechanical properties".JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 48(2015):229-240.