TY - JOUR
T1 - Effect of surface modification of ti-6al-4v alloy by electron cyclotron resonance plasma oxidation
AU - Oikawa, Mayumi
AU - Masumoto, Hiroshi
AU - Shiraishi, Naru
AU - Orii, Yusuke
AU - Anada, Takahisa
AU - Suzuki, Osamu
AU - Sasaki, Keiichi
N1 - Funding Information:
This work was performed under the Inter-University Cooperative Research of the Cooperative Research and Development Center for Advanced Materials, Institute for Materials Research, Tohoku University.
Publisher Copyright:
© 2021, Japanese Society for Dental Materials and Devices. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Ti-6Al-4V alloy is used as biomaterials for dental and orthopedic implants because of their excellent biocompatibilities and mechanical properties. However, it is unclear that electron cyclotron resonance (ECR) plasma oxidation can create the oxide films on Ti-6Al-4V alloy surface, and this technique improves the ability of its osseointegration. The purpose of this study was to investigate the characteristics and calcification ability of the oxide films. X-ray diffraction (XRD) peaks of rutile phase were intensified with increasing the temperature. Scanning electron microscopy (SEM) images showed a crater-like structure, and bonding strengths between the substrate and oxide film reached a maximum at 400°C. Calcium phosphate (CaP) compounds after calcification process were identified as octacalcium phosphate (OCP) and precipitation amount was maximized at 400°C. The results suggested that the altered surface of Ti-6Al-4V alloy by ECR plasma oxidation might have the potential of accelerating the ability of its osseointegration through enhancement of OCP.
AB - Ti-6Al-4V alloy is used as biomaterials for dental and orthopedic implants because of their excellent biocompatibilities and mechanical properties. However, it is unclear that electron cyclotron resonance (ECR) plasma oxidation can create the oxide films on Ti-6Al-4V alloy surface, and this technique improves the ability of its osseointegration. The purpose of this study was to investigate the characteristics and calcification ability of the oxide films. X-ray diffraction (XRD) peaks of rutile phase were intensified with increasing the temperature. Scanning electron microscopy (SEM) images showed a crater-like structure, and bonding strengths between the substrate and oxide film reached a maximum at 400°C. Calcium phosphate (CaP) compounds after calcification process were identified as octacalcium phosphate (OCP) and precipitation amount was maximized at 400°C. The results suggested that the altered surface of Ti-6Al-4V alloy by ECR plasma oxidation might have the potential of accelerating the ability of its osseointegration through enhancement of OCP.
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U2 - 10.4012/dmj.2020-051
DO - 10.4012/dmj.2020-051
M3 - Article
C2 - 33055434
AN - SCOPUS:85100335020
SN - 0287-4547
VL - 40
SP - 228
EP - 234
JO - Dental Materials Journal
JF - Dental Materials Journal
IS - 1
ER -