Assessment of characteristics and cytotoxic effects of 316L stainless steel coated with a new titanium oxide nano-structure coating method

被引：2
作者：
He, Xiaoxi [1 ]
Valanezhad, Alireza [2 ]
Watanabe, Ikuya [2 ]
Yoshida, Noriaki [1 ]
机构：
[1] Nagasaki Univ, Grad Sch Biomed Sci, Dept Orthodont & Dentofacial Orthoped, 1-7-1 Sakamoto, Nagasaki 8528588, Japan
[2] Nagasaki Univ, Grad Sch Biomed Sci, Dept Dent & Biomed Mat Sci, 1-7-1 Sakamoto, Nagasaki 8528588, Japan
来源：
DENTAL MATERIALS JOURNAL | 2019年 / 38卷 / 04期
关键词：
Titanium oxide; Nano-structure; Color; Adhesion; Cytotoxicity; TIO2; NAOH; ABILITY; FILM;
D O I：
10.4012/dmj.2018-273
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
In order to fabricate the TiO2 nano-structure coating on the Ti-free stainless steel with good adhesion, commercially obtained 316L stainless steel (316L SS) plates were chemically treated by KOH aqueous solution including TiH2 powder at 60 degrees C for 3 days in an oil bath shaker, and subsequently heated up to 550-800 degrees C under the air atmosphere. The crystal structure, color, adhesive strength and cytotoxic effects of coating were investigated. Fiber-like hydrogen titanate nano-structures were formed on the 316L SS surface and made a fine network. X-ray diffraction (XRD) patterns showed that hydrogen titanate phase converted to anatase and rutile after heat treatment above 550 degrees C. The heat treated sample at 800 degrees C for 1 h showed the highest adhesive strength and the lowest cytotoxicity. The alkali treatment method in this study is expected to be used on the other Ti-free metals with further research.
引用
收藏
页码：604 / 610
页数：7
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