Development of new beta/alpha ''-Ti-Nb-Zr biocompatible coating with low Young's modulus and high toughness for medical applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897439" target="_blank" >RIV/60076658:12310/18:43897439 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/18:00498454 RIV/68407700:21230/18:00320637 RIV/68407700:21340/18:00320637
Result on the web
<a href="https://reader.elsevier.com/reader/sd/pii/S0264127518300145?token=57BBAC65D303FF0A790FAD0A09BE0605FE587DF31FF4997D6F31F5FCF7B20DB4EF8154EEFF2DFB246ABD2F79E6E1BCBA" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0264127518300145?token=57BBAC65D303FF0A790FAD0A09BE0605FE587DF31FF4997D6F31F5FCF7B20DB4EF8154EEFF2DFB246ABD2F79E6E1BCBA</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matdes.2018.01.014" target="_blank" >10.1016/j.matdes.2018.01.014</a>
Alternative languages
Result language
angličtina
Original language name
Development of new beta/alpha ''-Ti-Nb-Zr biocompatible coating with low Young's modulus and high toughness for medical applications
Original language description
Ideal biomaterials to fabricate orthopedic implants, especially for load-bearing joint replacements, should include only non-toxic elements with good biocompatibility, high corrosion resistance and surface bioactivity, together with a good combination of mechanical properties. Based on these criteria, a manufacturing approach based on sputtering techniques can be ideal to develop coatings free of toxic elements tailored for advanced applications on pure titanium or titanium alloys used in biomedical applications. In this work, the ternary Ti-Nb-Zr system was used to develop non-toxic beta-rich Ti coatings with several complex microstructures by careful control of Nb and Zr concentration and deposition parameters, such as bias voltage. Depending on the alloy chemistry and processing, the coating included variable amounts of alpha-, alpha '' and beta-phases of Ti with different morphologies and crystallographic texture. Mechanical properties of every coating is largely determined by the micro-structure present, which is directly related to bias voltage used during sputtering process. Thus, hardness values change as a function of the compressive residual stresses magnitude and Young's modulus decreased from 63 GPa, at 0 V, to 47 GPa, at -63 V, being this value close to human bone (similar to 30 GPa). After that, Young's modulus progressively increases to 89 GPa, at -148 V. On the other hand, bioactivity of the coating is practically doubled when compared to Ti6AL4V alloy.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
<a href="/en/project/GP14-32801P" target="_blank" >GP14-32801P: Novel preparation route of metallic coatings for medical applications</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials & Design
ISSN
0264-1275
e-ISSN
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Volume of the periodical
142
Issue of the periodical within the volume
MAR 15 2018
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
44-55
UT code for WoS article
000425878200005
EID of the result in the Scopus database
2-s2.0-85040327861