TY - JOUR
T1 - Adhesive strength of bioactive oxide layers fabricated on TNTZ alloy by three different alkali-solution treatments
AU - Takematsu, E.
AU - Cho, K.
AU - Hieda, J.
AU - Nakai, M.
AU - Katsumata, K.
AU - Okada, K.
AU - Niinomi, M.
AU - Matsushita, N.
N1 - Funding Information:
The authors gratefully acknowledge the financial support received from the Collaboration Research Project of Advanced Materials Development and Integration of Novel Structured Metallic and Inorganic Materials supported by Ministry of Education, Culture, Sports, Science and Technology, Japan . We also thank Ms. Matsubara for her helpful advice.
Publisher Copyright:
© 2016 Elsevier Ltd.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - Bioactive oxide layers were fabricated on Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) by three different alkali solution treatments: hydrothermal (H), electrochemical (E), and hydrothermal-electrochemical (HE). The adhesive strength of the oxide layer to the TNTZ substrate was measured to determine whether this process achieves sufficient adhesive strength for implant materials. Samples subjected to the HE process, in which a current of 15 mA/cm2 was applied at 90 °C for 1 h (HE90-1h), exhibited a comparatively higher adhesive strength of approximately 18 MPa while still maintaining a sufficiently high bioactivity. Based on these results, an oxide layer fabricated on TNTZ by HE90-1h is considered appropriate for practical biomaterial application, though thicker oxide layers with many cracks can lead to a reduced adhesive strength.
AB - Bioactive oxide layers were fabricated on Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) by three different alkali solution treatments: hydrothermal (H), electrochemical (E), and hydrothermal-electrochemical (HE). The adhesive strength of the oxide layer to the TNTZ substrate was measured to determine whether this process achieves sufficient adhesive strength for implant materials. Samples subjected to the HE process, in which a current of 15 mA/cm2 was applied at 90 °C for 1 h (HE90-1h), exhibited a comparatively higher adhesive strength of approximately 18 MPa while still maintaining a sufficiently high bioactivity. Based on these results, an oxide layer fabricated on TNTZ by HE90-1h is considered appropriate for practical biomaterial application, though thicker oxide layers with many cracks can lead to a reduced adhesive strength.
KW - Adhesive strength
KW - Anodization
KW - Bioactive oxide layer
KW - Hydrothermal-electrochemical processing
KW - TNTZ alloy
KW - Tensile strength
UR - http://www.scopus.com/inward/record.url?scp=84957585841&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84957585841&partnerID=8YFLogxK
U2 - 10.1016/j.jmbbm.2015.12.046
DO - 10.1016/j.jmbbm.2015.12.046
M3 - Article
AN - SCOPUS:84957585841
SN - 1751-6161
VL - 61
SP - 174
EP - 181
JO - Journal of the Mechanical Behavior of Biomedical Materials
JF - Journal of the Mechanical Behavior of Biomedical Materials
ER -