Bond-coatings
High-temperature cyclic oxidation of Pt-rich γ-γ’ bond-coatings. Part II: Effect of Pt and Al on TBC system lifetime
... γ-γ’ bond-coatings on AM1 doped in hafnium showed superior oxidation resistance than the reference system with a β-(Ni,Pt)Al ...γ-γ’ coatings prepared from a platinum electroplating and a ...
9
Thermal cycling behavior of EBPVD TBC systems deposited on doped Pt-rich γ–γ′ bond coatings made by Spark Plasma Sintering (SPS)
... and coatings as they have shown good oxidation and corrosion ...fabricate coatings on superalloys including entire thermal barrier coating systems ...γ–γ′ bond coatings on AM1® superalloy ...
9
Chromium and iridium effects on the short-term interdiffusion behaviour between Pt rich γ-γ′ bond-coatings and a Ni-Al-Cr alloy
... Pt-rich coatings by Ir-based bond-coatings [15,16] , as it has been tested for Pd before [17 –21] ...Ir coatings deposited on the γ-Ni(Al,Cr) ternary alloy were also ...
9
High-temperature cyclic oxidation of Pt-rich γ-γ’ bond-coatings. Part II: Effect of Pt and Al on TBC system lifetime
... the bond-coating due to the formation of a thin layer of Al 2 O 3 during TBC ...obtain coatings with larger platinum and aluminium con- centrations for Pt + Al γ-γ’ ...γ-γ’ coatings (TBC-P1 to P4), ...
10
Effect of modification by Pt and manufacturing processes on the microstructure of two NiCoCrAlYTa bond coatings intended for thermal barrier system applications
... Oxides were found at the original Pt/NiCoCrAlYTa interface in both Pt-modi fied bond coatings. Oxides were also observed within the core of the “Tribomet” Pt-modified NiCoCrAlYTa coating. Here again the ...
12
Characterization of TBC systems with NiPtAl or NiCoCrAlYTa bond coatings after thermal cycling at 1100°C: a comparative study of failure mechanisms
... NiCoCrAlYTa NiPtAl (a) TBC47, 456 cycles (BSE). (b) TBC30, 480 cycles (BSE). Fig. 5: Interface between TGO/top coat for both bond coatings. It is worth mentioning that such a failure mechanism occurs for ...
10
Chromium and iridium effects on the short-term interdiffusion behaviour between Pt rich γ-γ′ bond-coatings and a Ni-Al-Cr alloy
... However, SEM observations showed a multi-layered system with vari- ous thicknesses ( Fig. 7 b). The grit blasting particles which appeared in black in backscattered electrons mode marked the interface positions compared ...
10
Petrol Prices and Government Bond Risk Premium
... Following the increase in the volatility of sovereign debt at the end of the nineties, many investors appeared on the market to take advantage of investment opportunities. Goldman and Sachs (200) were the first to ...
26
Les bond graphs multiénergies pour la modélisation et la surveillance en génie des procédés
... l’outil bond graph pour la génération des RRAs pour un système complexe est systématique et générique, ce qui facilite son implémentation ...modèle bond graph permet d’analyser d’une façon modulaire la ...
217
Modélisation multiphysique par bond graph des encapsulants en électronique de puissance
... Mots-clés – Modélisation multiphysique, Bond Graph, Electro- nique de puissance intégrée. 1. INTRODUCTION Les matériaux semi-conducteurs grand gap (SiC, GaN,...) sont capables de fonctionner dans des gammes de ...
7
Supervision des processus chimiques à base de modèles Bond Graphs
... par bond graphs des systèmes thermiques, thermodynamiques ou tout simplement en génie énergétique et des procédés reste encore un domaine ouvert en raison de la complexité de ces ...modèles bond graph comme ...
241
Residual Stress Analysis of Laser-Drilled Thermal Barrier Coatings Involving Various Bond Coats
... e ij ¼ 2A ij r i ; with 1 ' i ' j ðEq 5Þ In Eq 5 , Aij is a calibration coefficient that corresponds to a strain generated after the jth drilling step and induced by a unit hydrostatic stress in the ith increment. In ...
12
Coatings for interior walls
... Urethanes. This class of resin is available in five types, as is outlined in CBD 79. In urethanes, the oil-modified variety retains to a considerable degree the beneficial properties of the reactive types. Their chief ...
6
Coatings for exterior metal
... The chief problem in painting zinc, especially highly spangled galvanize, is to prevent subsequent peeling of the coating. Weathering of galvanized steel for at least six months has long been recommended as one way of ...
6
Paints and other coatings
... Water-Based Coatings The distinction between different types has not been so great in this category as in solvent- based coatings. All are generally referred to as "water paints" because the ...
6
Photoassisted transport in silicon dangling bond wires
... (Received 31 August 2015; accepted 6 November 2015; published online 18 November 2015) We theoretically investigate charge transport through dangling bond (DB) nanostructures built on a passivated silicon (100) ...
6
A journey into metal–carbon bond homolysis
... to inhibition. It was thus of interest to test the half- sandwich Cr II complexes as moderators. Polymerizations initiated by the labile V- 70 azo initiator (R 0 –N = N–R 0 with R 0 = (CH 3 ) 2 C(OCH 3 )CH 2 C • (CH 3 ...
31
Nanocomposite coatings based on quaternary metalnitrogen
... amorphous phase. With the exception of the Cr:W = 1.5:1 and the Cr:W = 1:1 samples, the mechanical properties are statistically equivalent. There may be a very weak trend of reduced mechanical properties with increased ...
211
Modélisation Bond Graphs en vue de l'efficacité énergétique du bâtiment
... l’approche Bond Graph pour la modélisation du comportement énergétique du ...modèle Bond Graph élaboré afin de déterminer l’influence des paramètres géométrique et physique et ceux liés au système de ...
268
The st-bond polytope on series-parallel graphs
... the bond polytope for every 2-connected series-parallel graph with less edges than G is given by ( ...every bond contains either none of g and h or both of ...
13