Effects of Pt incorporation on the isothermal oxidation behavior of chemical vapor deposition aluminide coatings

The oxidation behavior of three types of plasma-enhanced chemical vapor deposition (PECVD) processed Ti–Si–C–N coatings with silicon content ranging from 4.3 to 11.6 at.% has been investigated at high temperatures. Systematic characterization was conducted to study the evolution of composition, phase constituents, hardness, surface morphologies, microstructures, and grain size during oxidation. A two-stage oxidation process was observed between 700 and 1000 °C for all three coatings. Experimental results indicate that a superhardness of 40 GPa can be maintained up to 700, 800, and 850 °C for 4.3, 7.4, and 11.6 at.% Si coatings, respectively; the dual-phased 7.4 and 11.6 at.% Si coatings show a better oxidation resistance than the single-phased 4.3 at.% Si coating. On the basis of the results, a mechanism is proposed to explain the relationship between the nanostructure and oxidation behavior.

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Synthesis and oxidation behavior of boron-substituted carbon powders by hot filament chemical vapor deposition

Science in China Series E ◽

10.1007/s11431-008-0149-y ◽

2008 ◽

Vol 51 (9) ◽

pp. 1464-1469 ◽

Cited By ~ 3

Author(s):

QianKu Hu ◽

QingHua Wu ◽

Guang Sun ◽

XiaoGuang Luo ◽

Bo Xu ◽

...

Keyword(s):

Chemical Vapor Deposition ◽

Vapor Deposition ◽

Oxidation Behavior ◽

Chemical Vapor ◽

Hot Filament

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Correlation between the oxidation behavior and the microstructure of SiC coatings deposited on graphite substrates via chemical vapor deposition

Thin Solid Films ◽

10.1016/s0040-6090(97)00363-5 ◽

1998 ◽

Vol 315 (1-2) ◽

pp. 139-143 ◽

Cited By ~ 6

Author(s):

Toshiki Kingetsu ◽

Masaharu Takehara ◽

Toshio Yarii ◽

Kenjiro Ito ◽

Hiroki Masumoto

Keyword(s):

Chemical Vapor Deposition ◽

Vapor Deposition ◽

Oxidation Behavior ◽

Chemical Vapor ◽

Sic Coatings

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Growth kinetics and oxidation behavior of WSi2 coating formed by chemical vapor deposition of Si on W substrate

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2005.11.002 ◽

2006 ◽

Vol 420 (1-2) ◽

pp. 199-206 ◽

Cited By ~ 42

Author(s):

Jin-Kook Yoon ◽

Kyung-Whan Lee ◽

Sung-Jae Chung ◽

In-Jin Shon ◽

Jung-Mann Doh ◽

...

Keyword(s):

Chemical Vapor Deposition ◽

Growth Kinetics ◽

Vapor Deposition ◽

Oxidation Behavior ◽

Chemical Vapor

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Characterization and Performance Evaluation of Pack Cementation and Chemical Vapor Deposition Platinum Aluminide Coatings

Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General ◽

10.1115/96-gt-436 ◽

1996 ◽

Cited By ~ 1

Author(s):

Zaher Mutasim ◽

William Brentnall

Keyword(s):

Chemical Vapor Deposition ◽

Vapor Deposition ◽

Chemical Vapor ◽

Pack Cementation ◽

Aluminide Coatings ◽

Platinum Aluminide ◽

And Performance ◽

Industrial Gas Turbine ◽

Metallurgical Evaluation ◽

Pack Cementation Coating

Metallurgical evaluation of platinum aluminide coatings applied to industrial gas turbine components, for oxidation and high temperature hot corrosion protection, were conducted. Coatings were processed by electroplating a thin layer of platinum followed by aluminizing using either the pack cementation or the chemical vapor deposition (CVD) processes. Laboratory and field data on the performance of these coatings are presented. Results from these tests showed that both aluminizing processes produced coatings that provided adequate environmental protection. However, the CVD coating experienced less coating growth during engine service and was therefore determined to be thermally more stable than the pack cementation coating in this application.

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