MOCVD processed platinum–aluminum coatings on titanium alloys

Delmas, Mathieu; Ucar, Magali; Ressier, Laurence; Pons, M.; Vahlas, Constantin

doi:10.1016/j.surfcoat.2004.08.002

Cited by 7 publications

(12 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…explanation cannot be applied in the present case, since hydrodynamic simulations did not show any difference in gas flow patterns between 473 K and 573 K. [4] Alternatively, it is attributed to the decrease, with increasing temperature, of the activation energy for the desorption of Me(h 5 -Cp), which could become lower than the activation energy for its decomposition. That is to say that the adsorbed precursor would desorb before it is decomposed.…”

Section: S1mentioning

confidence: 53%

“…Depositions were performed in a vertical, cold-wall CVD reactor, presented in the literature [4,5]. 99% (Me 3 (MeCp)Pt) (Strem Chemicals) was used as received [17][18][19].…”

Section: Methodsmentioning

confidence: 99%

“…The overall process and the properties of these coatings are presented in the literature. [4,5] In the present work, the particular characteristics of Pt OMCVD on commercial Ti6242 titanium alloy coupons were studied. Among the numerous precursors available for platinum deposition, trimethyl(methylcyclopentadienyl)-platinum IV (Me 3 (MeCp)Pt IV ) was selected due to compatibility issues with aluminum deposition in the frame of the processing of Al-Pt coatings.…”

mentioning

confidence: 99%

“…Among the numerous precursors available for platinum deposition, trimethyl(methylcyclopentadienyl)-platinum IV (Me 3 (MeCp)Pt IV ) was selected due to compatibility issues with aluminum deposition in the frame of the processing of Al-Pt coatings. [4,5] Indeed, it is an oxygen-free precursor and for this reason it does not lead to oxygen incorporation in the coatings in the form of aluminum oxides. The temperature range for its decomposition providing Pt films is compatible with that of dimethyl ethyl amine alane providing Al films; i.e., typically 473-523 K. Moreover, decomposition of Me 3 (MeCp)Pt III in the presence of H 2 was reported to provide essentially pure platinum films.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Platinum Protective Coatings Processed by Organometallic CVD

Vahlas¹,

Delmas²

2008

Chemical Vapor Deposition

Self Cite

View full text Add to dashboard Cite

Communication: Platinum deposition by OMCVD from (Me3(MeCp)Pt) for protective coatings applications has been studied. Films grown at 473 K and 573 K on a Ti6242 alloy show a continuous microstructure, with growth rate of 19 nm · min−1 and 2.5 nm · min−1, respectively. No preferential orientation is observed at the latter temperature, while at 473 K films are textured following (111) orientation. The plot of thicknesses versus time at 473 K reveals an induction period followed by an autocatalytic growth. Platinum acts as a catalyst for the precursor decomposition when clusters reach critical size. At 573 K desorption of precursor from the surface prevents autocatalytic behaviour to appear resulting in decrease of the growth rate.

show abstract

Section: S1mentioning

confidence: 53%

“…Depositions were performed in a vertical, cold-wall CVD reactor, presented in the literature [4,5]. 99% (Me 3 (MeCp)Pt) (Strem Chemicals) was used as received [17][18][19].…”

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Platinum Protective Coatings Processed by Organometallic CVD

Vahlas¹,

Delmas²

2008

Chemical Vapor Deposition

Self Cite

View full text Add to dashboard Cite

show abstract

“…Stainless steel and titanium, copper and high‐temperature alloys have been widely used in the aviation engine field due to their excellent corrosion resistance . In a marine environment, the aero‐engine is in high‐temperature, high‐humidity, salt alkali and stormy environment, so metal corrosion is very serious .…”

Section: Introductionmentioning

confidence: 99%

Study of the corrosion characteristics of the metal materials of an aero‐engine under a marine atmosphere

Xing

Wang

et al. 2018

Materials & Corrosion

View full text Add to dashboard Cite

The corrosion tests are carried out on stainless steel, titanium alloy, copper alloy and high temperature alloy samples commonly used in an aviation engine. Scanning electron microscopy (SEM) and optical microscopy (OM) were used to observe the corrosion morphology of the corroded materials and 3D images after the corrosion products were removed. The corrosion rate was calculated by a weight loss method. A gradient boosting regression tree algorithm has good robustness for high‐dimensional data and is suitable for small‐sample data. The model can accurately predict the corrosion rate of metals and can analyze the factors that influence the corrosion rate.

show abstract