TY - JOUR
T1 - Improvement of Corrosion Resistance and Biocompatibility of Biodegradable Mg–Ca Alloy by ALD HfZrO2 Film
AU - Lin, Pi Chen
AU - Lin, Kaifan
AU - Lin, Yu Hsuan
AU - Yang, Kai Chiang
AU - Semenov, Vladimir Ivanovitch
AU - Lin, Hsin Chih
AU - Chen, Miin Jang
N1 - Funding Information:
Funding: This research was funded by the program of Ministry of Science and Technology of Taiwan (Contract No.: MOST 109-2221-E-002-116 and MOST 110-2221-E-002-047-MY3) and the Russian Foundation for Basic Research (Project No.: 20-58-S52001).
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/2
Y1 - 2022/2
N2 - Polycrystalline HfZrO2 (HZO) film can be fabricated on as-extruded Mg–Ca alloy, which is identified by the results of XRD and TEM. HZO film can improve the corrosion resistance of as-extruded Mg–Ca alloy to further result in a decrease in the corrosion rate of Mg–Ca alloy. Corrosion current density, pH value evaluation, and the corrosion surface image provide evidence of improvement in corrosion rate. Compared with ZrO2 film, HZO film shows better short-term corrosion resistance. The results of WST-1 assay and LDH assay show that HZO film has low toxicity and is suitable for the protective coating of biological implants.
AB - Polycrystalline HfZrO2 (HZO) film can be fabricated on as-extruded Mg–Ca alloy, which is identified by the results of XRD and TEM. HZO film can improve the corrosion resistance of as-extruded Mg–Ca alloy to further result in a decrease in the corrosion rate of Mg–Ca alloy. Corrosion current density, pH value evaluation, and the corrosion surface image provide evidence of improvement in corrosion rate. Compared with ZrO2 film, HZO film shows better short-term corrosion resistance. The results of WST-1 assay and LDH assay show that HZO film has low toxicity and is suitable for the protective coating of biological implants.
KW - Atomic layer deposition
KW - Corrosion protection
KW - HfZrO
KW - Magnesium-calcium alloy
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U2 - 10.3390/coatings12020212
DO - 10.3390/coatings12020212
M3 - Article
AN - SCOPUS:85124339522
SN - 2079-6412
VL - 12
JO - Coatings
JF - Coatings
IS - 2
M1 - 212
ER -