Structural control and self-organization of the functional oxide films formed on titanium

钛上功能性氧化膜的结构控制和自组织

基本信息

批准号：
16360353
负责人：
HABAZAKI Hiroki
金额：
$ 6.98万
依托单位：
HOKKAIDO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

项目摘要

1.Formation of self-organized porous anodic oxideWe have successfully developed self-organized porous anodic oxide films on Ti-Si alloys in hot glycerol solution containing dibasic phosphate. The key issue for the formation of the porous films is suppression of the crystallization of anodic oxide, which induces gas evolution during anodic film growth. The similar porous films are also developed on niobium and aluminum substrates. The cell size of the porous films on aluminum is dependent upon the formation voltage, similar to those formed in acid aqueous solutions.2.Formation of barrier-type anodic oxide with excellent dielectric propertiesIncorporation of foreign species from substrate suppresses effectively the development of crystalline anodic oxide on titanium. By increasing alloying element content, the structure of the air-formed film present before anodizing is modified, such that growth of amorphous oxide continues to higher formation voltages. The compositional dependence of the dielectric properties of anodic oxides formed on a range of titanium alloys has been examined systematically.3.Hard coating of titanium alloys by spark anodizingSpark anodizing of titanium, Ti-6Al-4V and Ti-15V-3Al-3Cr-3Sn has been performed in alkarine electrolyte containing aluminate and phosphate. Highly crystalline Al2TiO5-based oxide coatings,〜20μm thick, have been developed by dc-biased ac anodizing to high voltages. Regardless of the materials used, the coatings with hardnes of 〜6GPa have been obtained. The coatings have porosity, associated with discharge channel. From optical measurements during spark anodizing, the temperature at the discharge region has been estimated to be 4500〜5000℃. Such high temperature allows us to develop the highly crystalline coatings with high concentration of electrolyte species even in an aqueous solution at ambient temperature.

1.自组织的多孔阳极的形式成功地在含有二磷酸盐的热元素的ti-si上成功地开发了多孔的氧化氧化物膜。阳极膜的生长。在铝和铝底物上也形成了类似的多孔膜。外国物种与底物的极好的介电性能通过增加合金元素含量阳极氧化的晶体氧化物的发展是变化的。钛合金的范围已被系统地检查3这是通过DC偏置的AC阳极氧化的高压开发的。 5000°C。这样的高温也使我们能够在水溶液中开发高晶体涂层。

项目成果

期刊论文数量（35）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Field crystallization of anodic niobia on Nb-O substrate

Nb-O 基体上阳极氧化铌的场结晶

DOI：
发表时间：
2006
期刊：
ECS Transaction (印刷中)
影响因子：
0
作者：
日比谷孟俊;干川圭吾;H.Habazaki
通讯作者：
H.Habazaki

Formation of foreign element-stabilized amorphous anodic titania with high permittivity

高介电常数的异物稳定非晶阳极二氧化钛的形成

DOI：
发表时间：
期刊：
Proceeding of the Symposium on Electrochemical Capacitor and Hybrid Power Sources (印刷中)
影响因子：
0
作者：
日比谷孟俊;干川圭吾;H.Habazaki;H.Habazaki;H.Habazaki;H.Habazaki;H.Habazaki et al.;H.Habazaki et al.;H.Habazaki et al.;H.Habazaki;H.Habazaki;H.Habazaki;H.Habazaki;H.Habazaki
通讯作者：
H.Habazaki

Field crystallization of anodic niobia on Nb-O substrates

Nb-O 基底上阳极氧化铌的场结晶

DOI：
发表时间：
2006
期刊：
ECS Transaction 1
影响因子：
0
作者：
S.Ozawa;N.Takenaga;T.Koda;T.Hibiya;H.Kobatake;H.Fukuyama;M.Adachi;M.Watanabe;S Awaji;H.Habazaki;H.Habazaki;H.Habazaki;H.Habazaki
通讯作者：
H.Habazaki

Field crystallization of anodic niobia

阳极氧化铌的场结晶

DOI：
发表时间：
2007
期刊：
Corrosion Science 49
影响因子：
0
作者：
Y.Okuyama;N.Kurita;N.Fukatsu;H. Habazaki
通讯作者：
H. Habazaki

Origin of hydrogen in anodized niobium

阳极氧化铌中氢的来源

DOI：
发表时间：
2006
期刊：
J. Surf. Finishing Soc. Jpn. 57
影响因子：
0
作者：
S.Ozawa;N.Takenaga;T.Koda;T.Hibiya;H.Kobatake;H.Fukuyama;M.Adachi;M.Watanabe;S Awaji;H.Habazaki;H.Habazaki;H.Habazaki
通讯作者：
H.Habazaki