JPH10310859A - Method for treating surface of hard inorganic material - Google Patents
Method for treating surface of hard inorganic materialInfo
- Publication number
- JPH10310859A JPH10310859A JP9134546A JP13454697A JPH10310859A JP H10310859 A JPH10310859 A JP H10310859A JP 9134546 A JP9134546 A JP 9134546A JP 13454697 A JP13454697 A JP 13454697A JP H10310859 A JPH10310859 A JP H10310859A
- Authority
- JP
- Japan
- Prior art keywords
- inorganic material
- hard inorganic
- coating
- surface layer
- roughening
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/0036—Laser treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5057—Carbides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00577—Coating or impregnation materials applied by spraying
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00982—Uses not provided for elsewhere in C04B2111/00 as construction elements for space vehicles or aeroplanes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は宇宙往還機、エンジ
ン等の耐熱あるいは耐酸化性が要求される構造体の構成
材料として使用されるコーティング被膜を形成させた硬
質無機材料を製作する際の、コーティング被膜形成のた
めの前処理である硬質無機材料の表面処理方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a hard inorganic material having a coating film used as a constituent material of a structure requiring heat resistance or oxidation resistance, such as a spacecraft and an engine. The present invention relates to a surface treatment method for a hard inorganic material, which is a pretreatment for forming a coating film.
【０００２】[0002]
【従来の技術】宇宙往還機用ノーズキャップあるいはエ
ンジン用燃焼器などの材料として炭素繊維強化炭素材
（Ｃ／Ｃ複合材）などの基材の表面に化学蒸着法（ＣＶ
Ｄ）によるＳｉＣ等の硬質無機材料の表面層を形成させ
た材料が使用されているが、さらに耐酸化性を向上させ
る目的で溶射法等によって酸化物系の無機材料等のコー
ティング被膜を形成させた材料も知られている。前記の
ような硬質無機材料の表面層の上にコーティング被膜を
形成させる場合、被コーティング材料とコーティング被
膜との機械的結合性を高めるため、予め被コーティング
材料の表面に粗面化処理を施しておく方法が行われてい
る。従来、この被コーティング材料表面の粗面化処理方
法としては以下に示す２つの方法が行われている。 図２に示すようにＣ／Ｃ複合材などの基材１の表面に
形成されたＳｉＣなどの表面層２の表面に溶融塩３を用
いて化学的エッチング処理を施す方法。 図３に示すようにＣ／Ｃ複合材などの基材１の表面に
形成されたＳｉＣなどの表面層２の表面に金属又は無機
材料のグリッド４を用いてブラスト処理を施す方法。2. Description of the Related Art Chemical vapor deposition (CV) is applied to the surface of a base material such as a carbon fiber reinforced carbon material (C / C composite) as a material for a nose cap for a spacecraft or a combustor for an engine.
A material having a surface layer of a hard inorganic material such as SiC according to D) is used, but a coating film of an oxide-based inorganic material or the like is formed by thermal spraying or the like for the purpose of further improving oxidation resistance. Materials are also known. When forming a coating film on the surface layer of the hard inorganic material as described above, in order to enhance the mechanical bonding between the material to be coated and the coating film, the surface of the material to be coated is subjected to a roughening treatment in advance. A way to put it has been done. Conventionally, the following two methods have been performed as a method for roughening the surface of the material to be coated. As shown in FIG. 2, a method in which a surface of a surface layer 2 such as SiC formed on a surface of a substrate 1 such as a C / C composite material is subjected to a chemical etching treatment using a molten salt 3. As shown in FIG. 3, a method of blasting a surface of a surface layer 2 such as SiC formed on a surface of a substrate 1 such as a C / C composite material using a grid 4 of a metal or an inorganic material.
【０００３】[0003]
【発明が解決しようとする課題】これらの従来のコーテ
ィング前処理方法（エッチング処理、ブラスト処理）は
被コーティング材料の機械的あるいは化学的に劣る欠陥
領域を優先的に浸食、破壊していく処理であるため、被
コーティング材料の表面の粗面化が不均一となったり、
被コーティング材料の特性劣化を招く危険があり、これ
ら欠点を克服する効率的かつ確実な前処理方法の確立が
必要となっている。本発明は従来の粗面化前処理方法の
もつ問題点を解消し、被コーティング材料（特に耐熱、
耐酸化特性がシビアに要求される硬質無機材料）の本来
の特性を劣化させることなく、効率的に均一な表面粗面
化を達成でき、良好な品質のコーティング被膜を形成す
ることのできる硬質無機材料の表面処理方法を提供する
ことを目的とする。These conventional coating pretreatment methods (etching and blasting) are processes for preferentially eroding and destroying mechanically or chemically inferior defect areas of the material to be coated. Because of this, the surface roughness of the material to be coated becomes uneven,
There is a risk that the properties of the material to be coated may be degraded, and it is necessary to establish an efficient and reliable pretreatment method to overcome these disadvantages. The present invention solves the problems of the conventional roughening pretreatment method, and solves the problem of the material to be coated (particularly heat resistance,
A hard inorganic material that can efficiently achieve uniform surface roughening and form a good quality coating film without deteriorating the original characteristics of hard inorganic materials whose oxidation resistance is severely required. An object of the present invention is to provide a method for surface treatment of a material.
【０００４】[0004]
【課題を解決するための手段】本発明は少なくとも表面
層が硬質無機材料で形成された材料の表面にコーティン
グ被膜を形成させる際の前処理方法であって、表面層の
硬質無機材料の表面にレーザビームを用いて粗面化処理
を施すことを特徴とする硬質無機材料の表面処理方法で
ある。SUMMARY OF THE INVENTION The present invention relates to a pretreatment method for forming a coating film on a surface of a material having at least a surface layer formed of a hard inorganic material. A surface treatment method for a hard inorganic material, wherein a surface roughening treatment is performed using a laser beam.
【０００５】本発明の表面処理方法は、表面層の硬質無
機材料が化学蒸着法（ＣＶＤ）によるＳｉＣなどの共有
結合性の高い結晶構造の材料で構成されており、コーテ
ィング被膜が溶射法による耐酸化特性に優れる酸化物系
無機材料（例えばＹ2 Ｏ3 −ＳｉＯ2 複合酸化物）等の
コーティング被膜を形成させる場合に特に好適である。[0005] In the surface treatment method of the present invention, the hard inorganic material of the surface layer is composed of a material having a crystal structure having a high covalent bond such as SiC by chemical vapor deposition (CVD), and the coating film is formed of an acid resistant material by thermal spraying. It is particularly suitable when forming a coating film of an oxide-based inorganic material (for example, Y 2 O 3 —SiO 2 composite oxide) having excellent oxidation characteristics.
【０００６】本発明の方法を適用する少なくとも表面層
が硬質無機材料で形成された材料の例としては実質的に
ＳｉＣ、ＴｉＣ、ＴｉＮ又はＨｆＣなどの硬質無機材料
のみからなる材料又はＣ／Ｃ複合材又は黒鉛などの基材
に、ＳｉＣ、ＴｉＣ、ＴｉＮ又はＨｆＣなどの硬質無機
材料からなる表面層を形成させたものが挙げられる。特
にＣ／Ｃ複合材の表面にＣＶＤ−ＳｉＣ層を形成させた
材料が宇宙往還機用ノーズキャップ又はエンジン用燃焼
器などの材料として注目されているが、ＳｉＣの結晶構
造は共有結合性が高く、他の材料系と化学結合性を持た
せることは困難で、コーティングを行うためには表面を
粗面化し、機械的な結合性を持たせることが必要であ
る。Examples of the material to which the method of the present invention is applied, in which at least the surface layer is formed of a hard inorganic material, include a material substantially consisting only of a hard inorganic material such as SiC, TiC, TiN or HfC, or a C / C composite. And a base material such as graphite or a material formed with a surface layer made of a hard inorganic material such as SiC, TiC, TiN or HfC. In particular, a material in which a CVD-SiC layer is formed on the surface of a C / C composite material has attracted attention as a material for a nose cap for a spacecraft or a combustor for an engine, but the crystal structure of SiC has a high covalent bond. However, it is difficult to provide chemical bonding with other material systems, and it is necessary to roughen the surface and provide mechanical bonding in order to perform coating.
【０００７】前記硬質無機材料からなる表面層上に形成
させるコーティング被膜の材料としては耐酸化性、耐熱
性を付与するためにＩｒ等の高融点金属又はＹ2 Ｏ3 −
ＳｉＯ2 複合酸化物等の酸化物系無機材料などが使用さ
れる。また、被膜の形成方法としては溶射法のほか化学
的蒸着法（ＣＶＤ）、物理的蒸着法（ＰＶＤ）などの方
法が適用できる。これらの被膜の厚みは基材の形状やコ
ーティング材料の材質等によって異なるが３０〜１５０
μｍの範囲が好ましい。３０μｍ未満では被膜形成の効
果が不十分であり、１５０μｍを超えると被膜の割れ、
剥離等が生じるおそれがある。As a material of a coating film formed on the surface layer made of the hard inorganic material, a high melting point metal such as Ir or Y 2 O 3- is used to impart oxidation resistance and heat resistance.
An oxide-based inorganic material such as a SiO 2 composite oxide is used. In addition, as a method for forming a coating film, a method such as a chemical vapor deposition method (CVD) and a physical vapor deposition method (PVD) can be applied in addition to a thermal spraying method. The thickness of these films varies depending on the shape of the base material, the material of the coating material and the like, but is 30 to 150.
The range of μm is preferred. If it is less than 30 μm, the effect of film formation is insufficient, and if it exceeds 150 μm, cracking of the film,
Peeling or the like may occur.
【０００８】本発明の表面処理方法は前記硬質無機材料
からなる表面層上にコーティング被膜を形成するに先立
ち、被コーティング材料（硬質無機材料）とコーティン
グ被膜との機械的結合性を高めるための粗面化処理方法
であり、表面層の硬質無機材料の表面にレーザビームを
用いて粗面化処理を施すことを特徴とする。すなわち、
目的とする粗面化の程度に応じてレーザビームのスポッ
ト径、焦点距離、パルス周波数等を適当に調整し、被コ
ーティング材料の表面に照射して穴開け加工又は溝堀り
加工を行うことにより、被コーティング材料の特性劣化
のない、効率的かつ均一な粗面化が可能となる。適用す
るレーザビームとしてはＣＯ2 （炭酸ガス）、ＹＡＧ
（Ｙｔｔｏｒｉｕｍ Ａｌｕｍｉｎｕｍ Ｇａｒｎｅ
ｔ）、Ｅｘｃｉｍｅｒ（エキシマ）等が挙げられるが、
要求される粗面化パターンや加工時間等に応じて適当な
レーザを選定する必要がある。In the surface treatment method of the present invention, prior to forming a coating film on the surface layer made of the hard inorganic material, a rough coating for improving the mechanical bonding between the material to be coated (the hard inorganic material) and the coating film. A surface treatment method, wherein a surface of a hard inorganic material of a surface layer is subjected to a surface roughening treatment using a laser beam. That is,
By appropriately adjusting the spot diameter, focal length, pulse frequency, etc. of the laser beam according to the desired degree of surface roughening, irradiating the surface of the material to be coated and performing drilling or grooving Thus, efficient and uniform surface roughening without deterioration of the properties of the material to be coated can be achieved. The applicable laser beam is CO 2 (carbon dioxide), YAG
(Yttorium Aluminum Garne
t), Excimer and the like,
It is necessary to select an appropriate laser according to the required roughening pattern, processing time, and the like.
【０００９】ＣＶＤ−ＳｉＣ等の硬質無機材料に対して
加工用レーザで高出力の得られるＣＯ2 、ＹＡＧ、エキ
シマレーザ等を用い表面改質（ミクロンオーダーから数
十ミクロンのオーダーの深さの穴開け又は溝堀りにより
粗面化）することにより、被コーティング材料の特性劣
化のない効率的かつ均一な粗面化が可能となり、コーテ
ィング層との機械的結合性の向上を図ることができる。Surface modification of a hard inorganic material such as CVD-SiC using a CO 2 , YAG, excimer laser or the like which can provide high output with a processing laser (a hole having a depth on the order of microns to tens of microns) Roughening by opening or grooving) enables efficient and uniform roughening without deteriorating the characteristics of the material to be coated, and improves mechanical bonding with the coating layer.
【００１０】[0010]
【実施例】以下実施例により本発明の方法をさらに具体
的に説明する。本発明の１実施例について図１、４、５
を参照しながら説明する。図１は本発明に係るレーザビ
ームによる表面処理方法の概念図である。本発明の表面
処理を施す材料として図１に示すようにＣ／Ｃ複合材又
は黒鉛からなる基材１の表面に厚さ１００μｍのＣＶＤ
によるＳｉＣの表面層２を形成させたものを使用した。
この材料について次の３種類の方法により表面の粗面化
処理を行った。図１中の矢印はレーザビームの移動方向
を示す。 （ａ）エキシマレーザを使用し、深さ２０μｍ、幅１０
０μｍの溝を５００μｍの間隔で格子状に形成させる溝
堀り加工を行った。 （ｂ）ＹＡＧレーザを使用し、レーザビーム５のスポッ
ト径、焦点距離、パルス周波数を適当に制御し穴径：１
００〜１５０μｍ、深さ：３０〜６０μｍの穴が１００
μｍの間隔で形成される程度に調整し、加工速度：３６
００ｍｍ／ｍｉｎでレーザ銃を移動させながら連続スポ
ット穴開け加工を行うことにより粗面化処理を行った。 （ｃ）ＣＯ2 レーザを使用し、穴の間隔が２５０μｍと
なるように調整したほかは（ｂ）と同様にして穴開け加
工を行った。EXAMPLES The method of the present invention will be described more specifically with reference to the following examples. 1, 4 and 5 for one embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 is a conceptual diagram of a surface treatment method using a laser beam according to the present invention. As a material to be subjected to the surface treatment of the present invention, as shown in FIG. 1, a 100 μm thick CVD is applied to the surface of a substrate 1 made of a C / C composite material or graphite.
Having the surface layer 2 of SiC formed thereon.
This material was subjected to a surface roughening treatment by the following three methods. The arrow in FIG. 1 indicates the moving direction of the laser beam. (A) Using an excimer laser, depth 20 μm, width 10
Grooving was performed to form 0 μm grooves in a grid at intervals of 500 μm. (B) Using a YAG laser and appropriately controlling the spot diameter, focal length, and pulse frequency of the laser beam 5, and controlling the hole diameter to 1
100 to 150 μm, depth: 100 holes of 30 to 60 μm
Adjusted to the extent formed at intervals of μm, processing speed: 36
Roughening treatment was performed by performing continuous spot drilling while moving the laser gun at 00 mm / min. (C) Drilling was performed in the same manner as in (b), except that a CO 2 laser was used and the distance between the holes was adjusted to 250 μm.
【００１１】図４は前記（ａ）、（ｂ）又は（ｃ）の各
条件により表面処理を行った試料の表面状態を示す顕微
鏡写真である。図５は図４のＹＡＧレーザにより表面処
理を行った試料の表面に、溶射法により厚さ約１００μ
ｍのＹ2 Ｏ3 −ＳｉＯ2 複合酸化物のコーティング被膜
を形成させた試料について、断面の組織状態を示す顕微
鏡写真である。FIG. 4 is a photomicrograph showing the surface condition of a sample which has been subjected to a surface treatment under the conditions (a), (b) or (c). FIG. 5 shows that the surface of the sample subjected to the surface treatment by the YAG laser of FIG.
3 is a photomicrograph showing the microstructure of a cross section of a sample on which a m 2 Y 2 O 3 —SiO 2 composite oxide coating film was formed.
【００１２】図４及び図５から、本発明の方法により硬
質無機材料の表面に均一な穴開け又は溝堀り加工を行う
ことができ、本発明の方法はコーティングの前処理とし
ての粗面化に有効であることがわかる。4 and 5, the method of the present invention enables uniform drilling or grooving on the surface of a hard inorganic material, and the method of the present invention provides roughening as a pretreatment for coating. It is found to be effective.
【００１３】[0013]
【発明の効果】本発明の方法によれば、少なくとも表面
層が硬質無機材料からなる被コーティング材料に対し、
粗面化の程度に応じてレーザビームのスポット径、焦点
距離、パルス周波数等の条件を適当に調整し、穴開け又
は溝堀り加工を行うことにより、被コーティング材料の
特性劣化のない、効率的かつ均一な粗面化が可能とな
り、コーティング層との機械的結合性の向上を図ること
ができる。According to the method of the present invention, at least the surface layer is made of a hard inorganic material,
The laser beam spot diameter, focal length, pulse frequency, and other conditions are appropriately adjusted according to the degree of surface roughening, and drilling or grooving is performed. It is possible to achieve a rough surface uniformly and uniformly, and to improve the mechanical bonding with the coating layer.
【図１】本発明に係るレーザビームによる表面処理方法
の概念図。FIG. 1 is a conceptual diagram of a surface treatment method using a laser beam according to the present invention.
【図２】従来の表面処理方法である化学的エッチング処
理の概念図。FIG. 2 is a conceptual diagram of a chemical etching process which is a conventional surface treatment method.
【図３】従来の表面処理方法であるグリッドを用いたブ
ラスト処理の概念図。FIG. 3 is a conceptual diagram of a blast process using a grid, which is a conventional surface treatment method.
【図４】本発明の実施例に係る表面処理を行ったＳｉＣ
の表面状態を示す顕微鏡写真。FIG. 4 shows a surface-treated SiC according to an embodiment of the present invention.
5 is a micrograph showing the surface state of the sample.
【図５】本発明の実施例に係る表面処理を行ったＳｉＣ
の面上に形成させたコーティング層の断面の組織状態を
示す顕微鏡写真。FIG. 5 shows a surface-treated SiC according to an embodiment of the present invention.
5 is a micrograph showing the structure of the cross section of the coating layer formed on the surface of FIG.
フロントページの続き (72)発明者 都築 圭紀 愛知県名古屋市港区大江町10番地 三菱重 工業株式会社名古屋航空宇宙システム製作 所内 (72)発明者 藤原 力 愛知県名古屋市港区大江町10番地 三菱重 工業株式会社名古屋航空宇宙システム製作 所内 (72)発明者 関川 貴洋 愛知県名古屋市港区大江町10番地 三菱重 工業株式会社名古屋航空宇宙システム製作 所内 (72)発明者 納富 啓 長崎県長崎市深堀町五丁目717番１号 三 菱重工業株式会社長崎研究所内 (72)発明者 武田 恭之 長崎県長崎市深堀町五丁目717番１号 三 菱重工業株式会社長崎研究所内 (72)発明者 森本 立男 神奈川県横浜市金沢区幸浦一丁目８番地１ 三菱重工業株式会社基盤技術研究所内 (72)発明者 小椋 謙 神奈川県横浜市金沢区幸浦一丁目８番地１ 三菱重工業株式会社基盤技術研究所内 (72)発明者 近藤 雅之 神奈川県横浜市金沢区幸浦一丁目８番地１ 三菱重工業株式会社基盤技術研究所内Continued on the front page (72) Inventor Keiki Tsuzuki 10 Oecho, Minato-ku, Nagoya, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Nagoya Aerospace Systems Works (72) Inventor Riki Fujiwara 10 Oecho, Minato-ku, Nagoya-shi, Aichi Mitsubishi Nagoya Aerospace Systems Works, Heavy Industries, Ltd. (72) Inventor Takahiro Sekikawa 10 Oemachi, Minato-ku, Nagoya, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Nagoya Aerospace Systems Works, (72) Inventor Kei Satomi Fukahori, Nagasaki, Nagasaki 5-717-1, Machi, Nagasaki Research Laboratory, Mitsubishi Heavy Industries, Ltd. (72) Inventor Yasuyuki Takeda 5-717-1, Fukahoricho, Nagasaki, Nagasaki Prefecture, Nagasaki Research Laboratory, Mitsubishi Heavy Industries, Ltd. (72) Tatsuo Morimoto, Inventor 1-8-1 Koura, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture, Mitsubishi Heavy Industries, Ltd.Basic Technology Research Laboratory (72) Inventor Ken Ogura 1-8-1, Koura, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture, Mitsubishi Heavy Industries, Ltd.Basic Technology Research Laboratory (72) Departure Who Masayuki Kondo Kanagawa Prefecture Kanazawa-ku, Yokohama Sachiura chome address 8 1 Mitsubishi Heavy Industries, Ltd. based technology within the Institute
Claims (2)
された材料の表面にコーティング被膜を形成させる際の
前処理方法であって、表面層の硬質無機材料の表面にレ
ーザビームを用いて粗面化処理を施すことを特徴とする
硬質無機材料の表面処理方法。1. A pretreatment method for forming a coating film on a surface of a material having at least a surface layer formed of a hard inorganic material, wherein a rough surface is formed on a surface of the hard inorganic material of the surface layer by using a laser beam. A surface treatment method for a hard inorganic material, wherein the surface treatment is performed.
い結晶構造の材料で構成されており、コーティング被膜
が溶射法によるコーティング被膜であることを特徴とす
る請求項１に記載の硬質無機材料の表面処理方法。2. The hard inorganic material according to claim 1, wherein the hard inorganic material of the surface layer is made of a material having a crystal structure with high covalent bonding, and the coating film is a coating film formed by a thermal spraying method. Material surface treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9134546A JPH10310859A (en) | 1997-05-09 | 1997-05-09 | Method for treating surface of hard inorganic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9134546A JPH10310859A (en) | 1997-05-09 | 1997-05-09 | Method for treating surface of hard inorganic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10310859A true JPH10310859A (en) | 1998-11-24 |
Family
ID=15130853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9134546A Pending JPH10310859A (en) | 1997-05-09 | 1997-05-09 | Method for treating surface of hard inorganic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10310859A (en) |
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