Designing a novel functional-structural NiTi/hydroxyapatite composite with enhanced mechanical properties and high bioactivity
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in: Intermetallics, Jahrgang 84.2017, Nr. May, 05.01.2017, S. 35-41.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - Designing a novel functional-structural NiTi/hydroxyapatite composite with enhanced mechanical properties and high bioactivity
AU - Zhang, L.
AU - He, Z. Y.
AU - Tan, J.
AU - Zhang, Y. Q.
AU - Stoica, Mihai
AU - Calin, Mariana
AU - Prashanth, K. G.
AU - Cordill, Megan
AU - Jiang, Y. H.
AU - Zhou, Ru
AU - Eckert, Jürgen
PY - 2017/1/5
Y1 - 2017/1/5
N2 - Clinical applications require porous biomaterials, however, higher porosity levels and hydroxyapatite (HA) content hampers the mechanical properties like superelasticity. Here, a functional-structural composite consisting of a central NiTi shape memory alloy core with an outer macro-porous NiTi/HA layer was fabricated by spark plasma sintering (SPS). The central NiTi alloy provides desirable mechanical properties like high strength and superelasticity, while the outer layer with controllable pore size and bioactive HA, which strongly boosts the bioactivity. This work might provide a strategy for designing and fabricating multifunctional biocompatible materials that could be promising for bone implants.
AB - Clinical applications require porous biomaterials, however, higher porosity levels and hydroxyapatite (HA) content hampers the mechanical properties like superelasticity. Here, a functional-structural composite consisting of a central NiTi shape memory alloy core with an outer macro-porous NiTi/HA layer was fabricated by spark plasma sintering (SPS). The central NiTi alloy provides desirable mechanical properties like high strength and superelasticity, while the outer layer with controllable pore size and bioactive HA, which strongly boosts the bioactivity. This work might provide a strategy for designing and fabricating multifunctional biocompatible materials that could be promising for bone implants.
KW - Biomedical
KW - Mechanical properties
KW - Porous materials
KW - Powder metallurgy (including sintering and consolidation)
KW - Shape–memory alloys
UR - http://www.scopus.com/inward/record.url?scp=85008352231&partnerID=8YFLogxK
U2 - 10.1016/j.intermet.2016.12.025
DO - 10.1016/j.intermet.2016.12.025
M3 - Article
AN - SCOPUS:85008352231
VL - 84.2017
SP - 35
EP - 41
JO - Intermetallics
JF - Intermetallics
SN - 0966-9795
IS - May
ER -
