JP2009511743A - 熱溶射により形成される安定した接合部 - Google Patents
熱溶射により形成される安定した接合部 Download PDFInfo
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Abstract
Description
本発明の別の目的は、先行技術における接合部とは異なる、漏れを防止する安定した接合部を実現することにある。
添加物は、ガラス、セラミック溶剤、及び金属合金の中から選択される少なくとも一つの材料により構成することができる。
複合材料要素は、5%〜85%重量の添加物を含むことができる。
前記所定温度は、100℃から1500℃までの上下限を含む範囲の温度である。
被着表面は、本発明による安定した接合部によって第2部分に接合されるように構成される第1部分の表面とすることができる。
−複合材料要素を形成する方法を第1部分の前記表面に適用するステップと、
−前記第2部分の表面を、露出したままの前記表面と対向するように配置するステップと、
−複合材料要素の温度を前記所定温度に設定して、露出したままの前記表面のコーティングを形成するステップとを含み、前記コーティングは、露出したままの前記表面に対向して配置される前記第2部分の表面に固着する性質を有する。
被着表面は、複合材料要素を再生するための剥離界面とすることもできる。
−剥離界面に形成される複合材料要素を、第1部分の第1表面と第2部分の第2表面との間に、第1表面及び第2表面が互いに対向するように配置するステップと、
−複合材料要素の温度を前記所定温度に設定して、露出したままの複合材料要素の表面のコーティングを形成するステップとを含み、前記コーティングは、一方では、第1部分の第1表面に固着し、そして他方では、第2部分の第2表面に固着する性質を有する。
従って、接合部に適用することができる形態は平坦構造に制限されず、プラズマ溶射を適用することができる全てのタイプの3次元構造に拡張することができる。チューブ、窪み表面または突出表面、或いはこれらの構造を組み合わせた構造の上に形成されるコーティングの例を列挙することができる。
添加物は一般に、ガラス、セラミック溶剤、または金属合金とすることができる。
−耐腐食保護、
−ろう付け、
−SOFCまたは他のいずれかの用途に用いられる高温気密用接合体
Claims (17)
- 複合材料要素(1)であって、複合材料は、基質の表面に露出する微細亀裂の3次元相互接続網(4)の形態の微細亀裂基質(7)と、基質に分散されるセラミック溶剤またはガラスから成る添加物(6)とを含み、添加物(6)は、複合材料を所定温度にした場合に軟化し、そして微細亀裂網(4)の毛細管現象によって要素の前記表面に移動し、基質に最初に分散させる添加物の量は、露出したままの複合材料要素の表面を被覆して気密バリアを前記表面に形成する基質と比較し、十分に大きい割合に設定される、複合材料要素(1)。
- 基質(7)は、金属酸化物、炭化物、窒化物、シリサイド、及びホウ化物の中から選択される少なくとも一つの材料から成る、請求項1記載の複合材料要素。
- 基質(7)は、金属及び金属合金から選択される少なくとも一つの材料から成る、請求項1記載の複合材料要素。
- 添加物(6)は、ガラス、セラミック溶剤、金属、及び金属合金の中から選択される少なくとも一つの材料から成る、請求項1記載の複合材料要素。
- 重量5%〜85%の添加物を含む、請求項1〜4のいずれか1項に記載の複合材料要素。
- 前記所定温度は、100℃から1500℃までの範囲の温度である、請求項1記載の複合材料要素。
- 請求項1〜6のいずれか1項に記載の複合材料要素(1)により構成される安定した接合部であって、この複合材料の温度は、添加物のコーティング(9)によって、露出したままの前記表面が被覆されるように前記所定温度に設定されている、安定した接合部。
- 複合材料要素(20)は、熱溶射によって第1部分(21)に固着するように最初に溶着形成される要素であり、添加物コーティング(24)は、露出したままの前記表面を被覆して、前記気密バリアを、露出したままのこの表面に対向する第2部分(22)に形成する、請求項7記載の安定した接合部。
- 複合材料要素は、自己構造化要素(30)、すなわち初期段階において、第1部分(31)を接合するために露出したままの表面と、そして第2部分(32)を接合するために露出したままの表面とを有する要素であり、添加物コーティング(33,34)によって、露出したままの表面を被覆することにより、気密バリアを2つの部分の各部分に形成する、請求項7記載の安定した接合部。
- 請求項1〜6のいずれか1項に記載の複合材料要素を形成する方法であって、前記方法は、セラミック基質を形成するように調整された材料、及び添加物を形成するように調整された材料を少なくとも一つの被着表面に熱溶射するステップを含む方法。
- 熱溶射は、プラズマ溶射、酸素アセチレン炎溶射、HVOF(高速酸素燃料)溶射、HVAF(高速空気燃料)溶射、爆発ガン溶射、ワイヤアーク及びパウダーアーク溶射、直流アークプラズマ溶射、誘導プラズマ溶射、低温ガス動的溶射の方法、及びこれらの方法の内の少なくとも2つの方法を組み合わせた方法の中から選択される、請求項10記載の方法。
- 被着表面が、第2部分(22)に請求項7〜9に記載の安定した接合部(20)によって接合されるように構成される第1部分(21)の表面(23)である、請求項10又は11のいずれか1項に記載の方法。
- 被着表面が、複合材料要素を再生するための剥離界面である、請求項10及び11のいずれか1項に記載の方法。
- 細孔形成材料も熱溶射ステップの間に溶射される、請求項10〜13のいずれか1項に記載の方法。
- 漏れを防止する安定した接合部を形成する方法であって、
−請求項12記載の方法を第1部分(21)の前記表面(23)に適用するステップと、
−前記第2部分(22)の表面を、露出したままの前記表面と対向するように配置するステップと、
−複合材料要素(20)の温度を前記所定温度に設定して、露出したままの前記表面のコーティング(24)を形成するステップと、前記コーティング(24)は、前記表面に対向して配置される前記第2部分(22)の表面に固着する性質を有する方法。 - 漏れを防止する安定した接合部を形成する方法であって、
−請求項13記載の方法によって形成される複合材料要素(30)を、第1部分(31)の第1表面と第2部分(32)の第2表面との間に、第1表面及び第2表面が互いに対向するように配置するステップと、
−複合材料要素(30)の温度を前記所定温度に設定して、露出したままの複合材料要素の表面のコーティングを形成するステップとを含み、前記コーティング(33,34)は、一方では、第1部分(31)の第1表面に固着し、そして他方では、第2部分(32)の第2表面に固着する性質を有する方法。 - 圧力を第1部分と第2部分との間に加えて、第1部分の第1表面を第2部分の第2表面に近接する方向に引き付けようとすると同時に、複合材料要素の温度を前記所定温度に設定して、コーティングまたはこれらのコーティングの固着性を高める、請求項15又は16のいずれか1項に記載の方法。
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US20090199947A1 (en) | 2009-08-13 |
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WO2007042505A3 (fr) | 2007-07-19 |
FR2891824B1 (fr) | 2007-12-21 |
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