JPH04154991A - Formation of low-order titanium oxide film on titanium material - Google Patents

Formation of low-order titanium oxide film on titanium material

Info

Publication number
JPH04154991A
JPH04154991A JP27817190A JP27817190A JPH04154991A JP H04154991 A JPH04154991 A JP H04154991A JP 27817190 A JP27817190 A JP 27817190A JP 27817190 A JP27817190 A JP 27817190A JP H04154991 A JPH04154991 A JP H04154991A
Authority
JP
Japan
Prior art keywords
titanium
low
order
titanium oxide
oxide film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP27817190A
Other languages
Japanese (ja)
Other versions
JPH0577759B2 (en
Inventor
Seishiro Ito
征司郎 伊藤
Takashi Onaka
大中 隆
Shinichi Ishida
石田 慎一
Michiaki Hirochi
広地 通明
Hideyuki Matsunaga
松永 秀之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Aluminium Co Ltd
Tokai Denshi Inc
Original Assignee
Nippon Aluminium Co Ltd
Tokai Denshi Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Aluminium Co Ltd, Tokai Denshi Inc filed Critical Nippon Aluminium Co Ltd
Priority to JP27817190A priority Critical patent/JPH04154991A/en
Publication of JPH04154991A publication Critical patent/JPH04154991A/en
Publication of JPH0577759B2 publication Critical patent/JPH0577759B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To form the film of a blackish low-order titanium oxide on a titanium material without using a harmful component by anodizing the material and then heating the anodizied material. under specified conditions. CONSTITUTION:A titanium material is anodized to form a grayish titanium dioxide on its surface. The anodized material is heated at <=10<-3>Torr and >=300 deg.C. Consequently, the titanium dioxide is reduced to the blackish titanium monoxide or titanium pentoxide among the low-order titanium oxides shown by TinO2n-1 to form a black film on the material surface. The product is excellent in appearance and weatherability, and used as the ornament and building material. The low-order titanium oxide is also used as a reducing agent because of its high oxygen adsorptivity.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、装飾品や建材又は還元剤その他電子部品など
に使用されるチタン材への低次酸化チタンの形成方法に
関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for forming lower titanium oxide on a titanium material used for ornaments, building materials, reducing agents, and other electronic parts.

(従来の技術) 以前に、この種チタン材への低次酸化チタン皮膜の形成
方法として、特開平2−93097号公報を提案した。
(Prior Art) Previously, JP-A-2-93097 was proposed as a method for forming a low-order titanium oxide film on this type of titanium material.

この公報の記載内容は、チタン及びチタン合金から成る
チタン材を陽極酸化処理した後に、アンモニアや一酸化
炭素又は−酸化窒素などの還元雰囲気中において、少な
くとも600℃以上の温度で加熱することにより、黒色
系の低次酸化チタン皮膜を形成するようにしたものであ
る。
The contents of this publication state that after a titanium material made of titanium and a titanium alloy is anodized, it is heated at a temperature of at least 600°C in a reducing atmosphere of ammonia, carbon monoxide, or -nitrogen oxide. It forms a blackish low-order titanium oxide film.

(発明が解決しようとする課題) 所で、以上のような低次酸化チタン皮膜の形成方法では
、チタン材を陽極酸化処理した後に、該チタン材を低次
酸化チタンに還元させるために、アンモニアや一酸化炭
素又は−酸化窒素などのガスを使用することから、工場
内に有害ガスや刺激臭などが発生し、これら有害ガスな
どを排出するために換気装置などの設備が別途必要とな
り、設備コストが高くなる問題があった。
(Problems to be Solved by the Invention) However, in the method for forming a low-order titanium oxide film as described above, after the titanium material is anodized, ammonia is added to reduce the titanium material to low-order titanium oxide. Because gases such as carbon monoxide and nitrogen oxide are used, harmful gases and irritating odors are generated within the factory, and separate equipment such as ventilation equipment is required to exhaust these harmful gases. There was a problem of high costs.

本発明は以上のような問題に鑑みてなしなもので、その
目的は、有害成分を使用することなく、ン皮膜を得るこ
とができるチタン材への低次酸化チタン皮膜の形成方法
を提供することにある。
The present invention was made in view of the above-mentioned problems, and its purpose is to provide a method for forming a low-order titanium oxide film on a titanium material, which can obtain a low-order titanium oxide film without using harmful components. There is a particular thing.

(課題を解決するための手段) 上記目的を達成するために、本発明にかかる低吹酸化チ
タン皮膜の形成方法は、チタン材を陽極酸化処理した後
に、10−’torr以下の減圧下で、300℃以上に
加熱することを特徴とするものである。
(Means for Solving the Problems) In order to achieve the above object, the method for forming a low blown titanium oxide film according to the present invention includes: after anodic oxidation treatment of a titanium material, under reduced pressure of 10-'torr or less; It is characterized by heating to 300°C or higher.

(作用・効果) チタン材を陽極酸化処理することにより、灰色系の二酸
化チタンが(TiO2)が形成され、この二酸化チタン
を10 ”−3torr以下の減圧下で、300℃以上
に加熱することにより、前記二酸化チタンが還元されて
、一般式T1n02n−1(但しn=1〜10)で示さ
れる低次酸化チタンの内、黒色系のンが黒色皮膜となっ
て前記チタン材の表面に表出され、外観良好で耐候性に
優れた装飾品や建材となる。また、前記低次酸化チタン
は、酸素吸着機能に優れているため、還元剤としても使
用可能である。尚、前記陽極酸化処理を施したチタン材
を還元するに際して、10−3torr以上の圧力条件
とする場合、また、300°C以下の加熱条件とする場
合には、何れも陽極酸化処理で形成された前記二酸化チ
タンの還元作用が行われ難く、即ち、前記−酸化チタン
や五酸化二チタンの形成が充分に行われず、初期の目的
が達成できないために、前述した条件下で行うものであ
る。
(Function/Effect) By anodizing titanium material, grayish titanium dioxide (TiO2) is formed, and by heating this titanium dioxide to 300°C or higher under reduced pressure of 10''-3 torr or less. , the titanium dioxide is reduced, and among the lower titanium oxides represented by the general formula T1n02n-1 (where n = 1 to 10), blackish ions become a black film and are exposed on the surface of the titanium material. This makes it a decorative item or building material with good appearance and excellent weather resistance.In addition, the lower titanium oxide has an excellent oxygen adsorption function, so it can also be used as a reducing agent. When reducing the titanium material that has been subjected to anodic oxidation treatment, if the pressure condition is 10-3 torr or more, or if the heating condition is 300°C or less, the reduction of the titanium dioxide formed by anodizing treatment is required. The process is carried out under the above-mentioned conditions because the initial objective cannot be achieved because the formation of titanium oxide and dititanium pentoxide is difficult to achieve.

(実施例) 以下本発明にかかるチタン材への低次酸化チタン皮膜の
形成方法を、具体例を挙げて説明する。
(Example) The method of forming a low-order titanium oxide film on a titanium material according to the present invention will be described below by giving a specific example.

具体例1 先ず、30 g/jの硫酸と、20 g/lのリン酸及
びLog/jの過酸化水素水とから成る電解浴を調製し
た。また、試料として純チタン板を使用し、この試料を
前記電解洛中において、電圧50,100.150.2
00Vで、それぞれ10分間陽極酸化した。そして、前
記各試料の表面に、電圧50Vの場合は150nm、電
圧100Vの場合は370 nm、電圧150Vの場合
は1.I  μm、電圧200Vの場合は5.3μmの
灰色皮膜をそれぞれ形成した。
Specific Example 1 First, an electrolytic bath consisting of 30 g/j sulfuric acid, 20 g/l phosphoric acid, and Log/j hydrogen peroxide solution was prepared. In addition, a pure titanium plate was used as a sample, and this sample was subjected to the electrolysis at a voltage of 50,100.150.2.
00V for 10 minutes each. Then, the surface of each sample was coated with a thickness of 150 nm when the voltage was 50V, 370 nm when the voltage was 100V, and 1.5 nm when the voltage was 150V. In the case of I μm and voltage of 200 V, a gray film of 5.3 μm was formed.

次に、前記各試料を密封容器中にそれぞれ封入して、1
0−’torrに減圧し、これら各容器の全体を450
℃に加熱した電気炉中に装填して、120分間放置した
。この結果、次表で示すような皮膜の色調変化が得られ
た。
Next, each sample was sealed in a sealed container, and 1
Reduce the pressure to 0-'torr and reduce the entire volume of each container to 450
It was loaded into an electric furnace heated to 0.degree. C. and left for 120 minutes. As a result, changes in the color tone of the film as shown in the following table were obtained.

具体例2 前述した具体例1と同一条件で陽極酸化処理された各試
料を使用した。また、前記各試料の還元作用を促進させ
ることを目的として、該各試料と共に水素化チタンをそ
れぞれ密封容器中に封入して、10−’torrに減圧
し、これら各容器の全体を350°Cに加熱した電気炉
中に装填して、 10分間放置した。この結果、次表で
示すような皮膜の色調変化が得られた。
Specific Example 2 Each sample was anodized under the same conditions as in Specific Example 1 described above. In addition, in order to promote the reduction action of each sample, titanium hydride was sealed together with each sample in a sealed container, the pressure was reduced to 10-'torr, and the entire container was heated to 350°C. It was loaded into an electric furnace heated to 100 mL and left for 10 minutes. As a result, changes in the color tone of the film as shown in the following table were obtained.

具体例3 前述した具体例1と同一条件で陽極酸化処理した各試料
を使用した。また、前記各試料の還元作用を促進させる
ことを目的として、該各試料と共にチタン粉末をそれぞ
れ密封容器中に封入して、10−’t、orrに減圧し
、これら各容器の全体を500勢℃に加熱した電気炉中
に装填して、120分間放置した。この結果、次表で示
すような皮膜の色調変化が得られた。また、前記具体例
1〜3で得られた皮膜について、X線による回折試験を
行った所、何れもが一酸化チタンと五酸化二チタンから
成る黒色皮膜であった。
Specific Example 3 Each sample was anodized under the same conditions as in Specific Example 1 described above. In addition, for the purpose of promoting the reduction action of each sample, titanium powder was sealed together with each sample in a sealed container, the pressure was reduced to 10-'t, orr, and the entire container was heated to 500 ml. It was loaded into an electric furnace heated to 0.degree. C. and left for 120 minutes. As a result, changes in the color tone of the film as shown in the following table were obtained. Further, when the films obtained in Specific Examples 1 to 3 were subjected to an X-ray diffraction test, they were all black films composed of titanium monoxide and dititanium pentoxide.

次に示す表は、L、a、b系表色法における明度を示し
ている。尚、同表においては、本発明の比較例として、
以上の各具体例で示したような還元処理を施すことなく
、具体例1と同一条件で陽極酸化処理した各試料く灰色
)の明度を示している。
The table shown below shows the brightness in the L, a, b color system. In addition, in the same table, as a comparative example of the present invention,
The lightness of each sample (gray) that was anodized under the same conditions as in Example 1 without being subjected to the reduction treatment shown in each example above is shown.

表〈皮膜の色調変化) 以上の表から明らかなように、具体例1〜3のものは、
その何れもが比較例に較べてL値が低下しており、この
ことから陽極酸化処理された皮膜が、前述した還元処理
によって黒色に変化していることが理解される。尚、前
記表中、具体例3の50V、1’OOV、150Vにつ
いては、L値及びa、b値についての試験を行っていな
い。
Table (Change in color tone of film) As is clear from the table above, in Examples 1 to 3,
In all of them, the L value was lower than that of the comparative example, and from this it can be understood that the anodized film was turned black by the reduction treatment described above. In addition, in the above table, for 50V, 1'OOV, and 150V of Specific Example 3, tests regarding L value and a, b value were not conducted.

出願人 日本アルミニクム工業株式会社同  東海電子
株式会社
Applicant: Nippon Aluminum Industries Co., Ltd. Tokai Electronics Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] (1)チタン材を陽極酸化処理した後に、10^−^3
torr以下の減圧下で、300℃以上に加熱すること
を特徴とするチタン材への低次酸化チタン皮膜の形成方
法。
(1) After anodizing the titanium material, 10^-^3
A method for forming a low-order titanium oxide film on a titanium material, the method comprising heating to 300° C. or higher under reduced pressure of torr or lower.
JP27817190A 1990-10-16 1990-10-16 Formation of low-order titanium oxide film on titanium material Granted JPH04154991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27817190A JPH04154991A (en) 1990-10-16 1990-10-16 Formation of low-order titanium oxide film on titanium material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27817190A JPH04154991A (en) 1990-10-16 1990-10-16 Formation of low-order titanium oxide film on titanium material

Publications (2)

Publication Number Publication Date
JPH04154991A true JPH04154991A (en) 1992-05-27
JPH0577759B2 JPH0577759B2 (en) 1993-10-27

Family

ID=17593582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27817190A Granted JPH04154991A (en) 1990-10-16 1990-10-16 Formation of low-order titanium oxide film on titanium material

Country Status (1)

Country Link
JP (1) JPH04154991A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07252687A (en) * 1994-03-16 1995-10-03 Miki Netsuren Kk Method for adhering titanium and titanium alloy
WO2002049965A1 (en) * 2000-12-19 2002-06-27 Toho Titanium Co., Ltd. Method of forming titanium oxide film and titanium electrolytic capacitor
WO2007029602A1 (en) * 2005-09-08 2007-03-15 Kinki University Bone substitute material, medical material containing the bone substitute material, and process for producing the bone substitute material
JP2017222892A (en) * 2016-06-13 2017-12-21 新日鐵住金株式会社 Titanium material and manufacturing method of titanium material
JP2018104806A (en) * 2016-12-28 2018-07-05 新日鐵住金株式会社 Titanium material, separator, cell and solid polymer fuel battery
JP2018104807A (en) * 2016-12-28 2018-07-05 新日鐵住金株式会社 Titanium material, separator, cell and solid polymer fuel battery
JP2019071196A (en) * 2017-10-06 2019-05-09 トヨタ自動車株式会社 Manufacturing method of separator for fuel cell
JP2022051582A (en) * 2018-03-12 2022-03-31 三菱マテリアル株式会社 Titanium base material, method for manufacturing the same, electrode for water electrolysis and water electrolysis apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07252687A (en) * 1994-03-16 1995-10-03 Miki Netsuren Kk Method for adhering titanium and titanium alloy
WO2002049965A1 (en) * 2000-12-19 2002-06-27 Toho Titanium Co., Ltd. Method of forming titanium oxide film and titanium electrolytic capacitor
WO2007029602A1 (en) * 2005-09-08 2007-03-15 Kinki University Bone substitute material, medical material containing the bone substitute material, and process for producing the bone substitute material
JP2017222892A (en) * 2016-06-13 2017-12-21 新日鐵住金株式会社 Titanium material and manufacturing method of titanium material
JP2018104806A (en) * 2016-12-28 2018-07-05 新日鐵住金株式会社 Titanium material, separator, cell and solid polymer fuel battery
JP2018104807A (en) * 2016-12-28 2018-07-05 新日鐵住金株式会社 Titanium material, separator, cell and solid polymer fuel battery
JP2019071196A (en) * 2017-10-06 2019-05-09 トヨタ自動車株式会社 Manufacturing method of separator for fuel cell
JP2022051582A (en) * 2018-03-12 2022-03-31 三菱マテリアル株式会社 Titanium base material, method for manufacturing the same, electrode for water electrolysis and water electrolysis apparatus

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