Aluminum-free low-modulus Ti-C composites that exhibit reduced image artifacts during MRI
- Authors
- Kim, Sung-Chul; Lee, Hong-Jun; Son, Seong-Guk; Seok, Hyun-Kwang; Lee, Kang-Sik; Shin, Seung-Young; Lee, Jae-Chul
- Issue Date
- 15-1월-2015
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Composite; Powder processing; Mechanical property; Biocompatibility; Magnetic resonance imaging
- Citation
- ACTA BIOMATERIALIA, v.12, pp.322 - 331
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACTA BIOMATERIALIA
- Volume
- 12
- Start Page
- 322
- End Page
- 331
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/94636
- DOI
- 10.1016/j.actbio.2014.10.016
- ISSN
- 1742-7061
- Abstract
- Feasibility studies were performed to determine the suitability of a novel synthesis technique for fabricating multifunctional composite materials for orthopedic implants. By blending paramagnetic Ti powder with diamagnetic graphite and consolidating the resulting mixtures, Ti-C composites that cannot be feasibly obtained via conventional alloying techniques or ingot metallurgy were synthesized. The synthesized composite material exhibited extremely low magnetic susceptibility (chi = 67.6 x 10(-6)), and, as a result, exhibited fewer artifacts during magnetic resonance imaging. The strength of the composite material (sigma = 770 MPa) was such that it could support external loads to which the human body is subjected, but its Young's modulus was low (E = 81.9 GPa) such that it could mitigate the stress-shielding effect. The material was also free from toxic elements such as Al and V and, thus, can be considered less harmful. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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