JP2019049053A - Cmas耐性遮熱コーティング及びそのコーティングを作る方法 - Google Patents
Cmas耐性遮熱コーティング及びそのコーティングを作る方法 Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 123
- 239000011248 coating agent Substances 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims description 17
- 239000000463 material Substances 0.000 claims abstract description 56
- 239000002245 particle Substances 0.000 claims abstract description 27
- 230000008021 deposition Effects 0.000 claims abstract description 16
- 229910000323 aluminium silicate Inorganic materials 0.000 claims abstract description 11
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009825 accumulation Methods 0.000 claims abstract description 6
- 239000000919 ceramic Substances 0.000 claims description 56
- 239000000758 substrate Substances 0.000 claims description 22
- 239000000725 suspension Substances 0.000 claims description 20
- 238000000151 deposition Methods 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 17
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims description 13
- 230000035515 penetration Effects 0.000 claims description 12
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000012720 thermal barrier coating Substances 0.000 description 22
- 230000035882 stress Effects 0.000 description 7
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000007750 plasma spraying Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000005328 electron beam physical vapour deposition Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 229910052586 apatite Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000011153 ceramic matrix composite Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229910000951 Aluminide Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002603 lanthanum Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
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- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
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Abstract
Description
図3は、Progressive Surface100HE(商標)プラズマトーチを使用してAlloy718基材14に生成された内部YSZ部分18a及び外部GZO部分18bを有する2部分構成のセラミックトップコート18の斜視図を提供する。GZO部分は、95kWの総トーチ電力、及び85SLMのアルゴン、57SLMの水素、及び57SLMの窒素からなる199SLMの総ガス流量を用いて堆積されている。プラズマトーチは、593mm/秒の速度及び76.2mmのスタンドオフ距離(プラズマトーチノズルと基材との間の距離)で、基材を横断してラスター化される。フィードストック材料は、エタノールに懸濁した1.0μmのメジアン粒径(d50)を有する25重量%のGZO粉末(33モル%のGd2O3、ZrO2の残部)である。懸濁液の供給速度は、90ml/分の組み合わせた供給速度のために、2つの直径230μmのインジェクタのそれぞれを介した45ml/分に維持される。
「実質的に」、「本質的に」、「一般に」、「おおよそ」などの本明細書で使用される相対用語または程度の用語は、本明細書に明示的に適用される定義または限界に従って解釈されるべきである。すべての例において、本明細書で使用される相対用語または程度の用語は、関連する開示された実施形態、及び本開示の全体を考慮して当業者によって理解される範囲または変形を広く包含するものと解釈されるべきであり、例えば、通常の製造許容値変動、偶発的な位置決め変化、温度、回転または振動の動作条件などによって誘発される一時的な位置決め変化または形状変化を包含する。さらに、本明細書で使用されるあらゆる相対用語または程度の用語は、適格な相対用語または程度の用語が所与の開示や詳細説明で利用されなかったかのように、指定された品質、特性、パラメータまたは値を明示的に含む範囲を包含するものと解釈されるべきである。
以下は、本発明の可能性のある実施形態の包括的な説明である。
Claims (20)
- アルミノケイ酸カルシウムマグネシウム(CMAS)耐性コーティングシステムであって、
外側コーティングを備え、前記外側コーティングは、
優先的材料蓄積によって材料堆積中に形成された複数の柱状構造であって、複数のランダム配向する粒子スプラット及びCMAS反応性材料を含み、前記柱状構造が、5パーセント未満の全多孔度を有する、複数の柱状構造と、
前記外側コーティングの最外面から前記外側コーティングの全体厚さ以下の前記外側コーティングの第1の深さまで延在する複数の概略垂直配向するギャップであって、隣接する柱状構造を分離し、前記複数の垂直配向するギャップのメジアンギャップ幅が、5マイクロメートル未満である、複数の概略垂直配向するギャップと、
を備える、CMAS耐性コーティングシステム。 - 前記複数の垂直配向するギャップの前記メジアンギャップ幅は、3マイクロメートル未満である、請求項1に記載のCMAS耐性コーティングシステム。
- 前記CMAS反応性材料は、18〜100モルパーセントの範囲にある希土類元素含有量を含む、請求項1に記載のCMAS耐性コーティングシステム。
- 前記CMAS反応性材料は、ガドリニアを含む、請求項1に記載のCMAS耐性コーティングシステム。
- 前記柱状構造は、3パーセント未満の全多孔度を有する、請求項1に記載のCMAS耐性コーティングシステム。
- 前記外側コーティングは、10パーセント未満の全多孔度を有する、請求項1に記載のCMAS耐性コーティングシステム。
- 前記外側コーティングは、5パーセント未満の全多孔度を有する、請求項1に記載のCMAS耐性コーティングシステム。
- 前記複数の垂直配向するギャップのそれぞれの間の平均距離は、25〜500マイクロメートルの範囲にある、請求項1に記載のCMAS耐性コーティングシステム。
- 前記複数の垂直配向するギャップは、隣接する柱状構造を分離する連結多孔度のバンドである、請求項1に記載のCMAS耐性コーティングシステム。
- 前記複数の垂直配向するギャップは、クラックである、請求項1に記載のCMAS耐性コーティングシステム。
- 前記クラックは、前記コーティングの最外面から前記外側コーティングの厚さの60パーセント未満の深さまで延在する、請求項9に記載のCMAS耐性コーティングシステム。
- 前記複数の垂直配向するギャップの最も外側の部分は、CMAS及び前記CMAS反応性材料の結晶化生成物が充填され、前記複数の垂直配向するギャップは、前記外側コーティングの最外面から前記外側コーティングの第2の深さまで充填され、前記第2の深さは、前記第1の深さより小さい、請求項1に記載のCMAS耐性コーティングシステム。
- 前記第2の深さは、前記外側コーティングの全体厚さの半分未満である、請求項12に記載のCMAS耐性コーティングシステム。
- 前記外側コーティングの少なくとも90パーセントは、隣接する垂直配向するギャップを連結する概略水平配向するギャップがない、請求項1に記載のCMAS耐性コーティングシステム。
- 内側コーティングをさらに備え、前記内側コーティングは、
複数の柱状構造と、
前記外側コーティングの材料と異なる化学組成を有する材料と、
を備える、請求項1に記載のCMAS耐性コーティングシステム。 - アルミノケイ酸カルシウムマグネシウム(CMAS)耐性コーティングを形成する方法であって、
液体媒体内に懸濁されたセラミック粒子を含む懸濁液フィードストックを設けることであって、前記セラミック粒子が、CMAS反応性材料を含む、設けることと、
前記セラミック粒子を基材上に堆積させることであって、それにより、5パーセント未満の多孔度を有する複数の柱状構造を形成する、前記堆積させることと、
前記コーティングの第1の厚さを通して前記コーティングの最外面から延在する複数の概略垂直配向するギャップを形成することと、
を含み、前記複数の垂直配向するギャップが、5マイクロメートル未満のメジアンギャップ幅を有する、アルミノケイ酸カルシウムマグネシウム(CMAS)耐性コーティングを形成する方法。 - 前記CMAS反応性材料は、希土類元素を含む、請求項16に記載の方法。
- 前記CMAS反応性材料は、ガドリニアを含む、請求項17に記載の方法。
- 前記懸濁液フィードストックを溶射することが、
前記基材にわたって複数の溶射パスを作ることであって、それにより、層ごとに前記コーティングの全体厚さを増加させる、作ることと、
前記コーティングの少なくとも90体積パーセントが、前記コーティング内で、隣接する垂直配向するギャップを連結する概略水平配向するギャップがないように、前記コーティングの高密度パス間領域を生成することと、
を含む、請求項16に記載の方法。 - 前記垂直配向するギャップの一部分を溶融CMASの浸入からシールすることをさらに含み、
シールすることは、前記複数の垂直配向するギャップの一部分にCMAS及びCMAS反応性材料の結晶化生成物を充填することを含み、前記充填される部分は、前記コーティングの最外面から延在する、請求項16に記載の方法。
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