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:
  • 金额:
    $ 6.98万
  • 依托单位:
  • 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.自组织多孔阳极氧化物的形成在含磷酸二氢钠的热甘油溶液中,我们成功地在钛硅合金表面制备了自组织多孔阳极氧化膜。多孔膜形成的关键问题是抑制阳极氧化物的结晶,从而在阳极薄膜生长过程中诱导气体析出。在Nb和Al衬底上也制备了类似的多孔膜。铝表面多孔膜的大小取决于形成电压,与在酸性水溶液中形成的类似。2.形成具有优异介电性能的阻隔型阳极氧化物从衬底中引入外来物种有效地抑制了钛表面晶态阳极氧化物的形成。通过增加合金元素的含量,改变了阳极氧化前存在的空气形成膜的结构,使得非晶态氧化物的生长继续到更高的形成电压。3.钛合金电火花氧化硬化膜在含有铝酸盐和磷酸盐的碱性电解液中,对钛、Ti-6Al-4V和Ti-15V-3Al-3CR-3SN进行了电火花氧化。采用直流偏置交流高压阳极氧化技术制备了厚度约20μm的高晶态Al2TiO5基氧化物涂层。无论使用何种材料,均可获得硬度约为6 Gpa的涂层。涂层具有孔洞,与放电通道有关。根据火花氧化过程中的光学测量,估计放电区的温度为4500~5000℃。这样的高温使我们即使在室温下的水溶液中也能制备出高结晶度的涂层,其电解质物种的浓度也很高。

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 substrates
Nb-O 基底上阳极氧化铌的场结晶
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 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 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:
  • 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
Field crystallization of anodic niobia
阳极氧化铌的场结晶
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 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:
  • 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
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HABAZAKI Hiroki其他文献

Diffusion-controlled Growth of TiO<sub>2</sub> Mesoporous Anodic Films in Hot Phosphate/glycerol Electrolytes
热磷酸盐/甘油电解质中 TiO<sub>2</sub> 介孔阳极薄膜的扩散控制生长
  • DOI:
    10.5796/electrochemistry.18-00005
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    2.5
  • 作者:
    TSUJI Etsushi;MATSUURA Shiki;AOKI Yoshitaka;HABAZAKI Hiroki
  • 通讯作者:
    HABAZAKI Hiroki

HABAZAKI Hiroki的其他文献

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{{ truncateString('HABAZAKI Hiroki', 18)}}的其他基金

Electrochemical Synthesis of Proton-conducting Oxide Nanofilms forIntermediate-temperature Fuel Cells
用于中温燃料电池的质子传导氧化物纳米膜的电化学合成
  • 批准号:
    23656441
  • 财政年份:
    2011
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Plasma electrolytic oxidation of light metals : elucidation of the process and surface functionalization
轻金属的等离子体电解氧化:工艺和表面功能化的阐明
  • 批准号:
    19206077
  • 财政年份:
    2007
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Tailoring of Oxidation-Resistant Nb-base Alloys at Ultra-High Temperatures and Understanding of their Oxidation Mechanism
超高温抗氧化铌基合金的定制及其氧化机制的理解
  • 批准号:
    13650770
  • 财政年份:
    2001
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Preparation of Corrosion-Resistant Bulk Amorphous Alloys
耐腐蚀大块非晶合金的制备
  • 批准号:
    11650731
  • 财政年份:
    1999
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

相似海外基金

Fabrication of intermediate temperature fuel cells using proton conducting anodic oxide film as a novel solud electrolyte
使用质子导电阳极氧化膜作为新型固体电解质制备中温燃料电池
  • 批准号:
    24360298
  • 财政年份:
    2012
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
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