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chemical vapor deposition

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
...) Note: PACVD, plasma-assisted chemical vapor deposition; PCVD, plasma chemical vapor deposition; PECVD, plasma-enhanced chemical vapor deposition Published findings for RCF performance of thermally sprayed coatings Table 4 Published findings for RCF performance of thermally sprayed coatings...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
.... , Tribological Behavior at Elevated Temperature of Multilayer TiCN/TiC/TiN Hard Coatings Produced by Chemical Vapor Deposition , Thin Solid Films , Vol 520 ( No. 2 ), 2011 , p 833 – 836 10.1016/j.tsf.2011.04.165 173. Kumar N. , Panda K. , Dash S. , Popov C. , Reithmaier J.P...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... Conclusion Recommendations Example 2: Analysis of a Corrosion Failure of an Aboveground Storage Tank Electroplated Coatings Hot-Dip Coatings Vapor-Deposited Coatings Thermal Spray Coatings Conversion Coatings Phosphate Conversion Coatings Chromate Conversion Coatings Aluminum...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
...-temperature component. Aluminide coatings on transition metals and alloys, such as iron, nickel, and cobalt, are β-FeAl, β-NiAl, and β-CoAl, respectively. Diffusion aluminide coatings are typically processed via pack cementation, slurry-diffusion, or chemical vapor deposition ( Ref 58 ). Other processes...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
...) and chemical vapor deposition (CVD). Sputtering, the process of transporting materials from a source to a substrate by bombardment of a target with gas ions, is the most widely used method of application for PVD. This method is optimal for thin metal films where good adhesion and uniformity are necessary...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001773
EISBN: 978-1-62708-241-9
... in the chemical industry to separate mixtures of chemicals. The chemicals inside the distillation towers are heated, causing lower boiling point chemicals to vaporize and rise to the top of the tower. Hot vapors leaving the top of the distillation towers are cooled and condensed to a liquid inside a heat...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003551
EISBN: 978-1-62708-180-1
... of nonoxide structural ceramics can be improved by using protective coatings. The use of a chemically vapor deposited (CVD) layer of the same composition as the substrate is a very promising application of coatings to regard the hot corrosion of structural ceramics ( Ref 16 ). Other methods investigated...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001832
EISBN: 978-1-62708-241-9
... of the cracked vent pipe are presented in this report. The analyses used to determine the cause of failure include metallographic examination of the fractures and chemical analysis of the deposits found within the pipe. Several cracks were discovered in the vent pipe connected to the final exhaust fan...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001718
EISBN: 978-1-62708-220-4
.... Energy dispersive spectroscopy (EDS) was employed for chemical analysis of the fracture surface of one of the linear defects on the damaged impeller blades. Figure 11 presents the EDS spectrum for the black deposit on the tight crack-like portion of the defect. This region is rich in carbon, attributed...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001364
EISBN: 978-1-62708-215-0
...Abstract Abstract An investigation of the impeller and deposit samples from a centrifugal compressor revealed that an aluminum IR-12 refrigerant reaction had occurred, causing extensive damage to the second-stage impeller and contaminating the internal compressor components. The spherical...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001314
EISBN: 978-1-62708-215-0
... Overheating Transgranular fracture Vaporizers ASTM A106 grade B UNS K03006 Thermal fatigue fracture Background Testing Procedure and Results Discussion Conclusions and Recommendations References References 1. Perry and Green, Perry's Chemical Engineers Handbook , 6th ed. , McGraw...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001109
EISBN: 978-1-62708-214-3
... Chemical and X-ray Diffraction Analysis Simulation Tests The salt deposition mechanism is visualized as follows. Pellets that enter the indurator contain small amounts of impurities, particularly alkali chlorides that are primarily derived from the flux addition. The combustion gas is oxidizing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001281
EISBN: 978-1-62708-215-0
.... Surface Examination Metallography Chemical Analysis/Identification Alloy surfaces exposed to high temperatures and gas environments can become coated with foreign deposits (sulfates, oxides, chlorides, etc.) from combustion air or fuel contaminants. Corrosion products can react with or dissolve...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... chemical cleaning using uninhibited acids, excessive temperatures, or prolonged contact time. Water used to wash fire-side deposits where high-sulfur fuel oil or gas was fired will also create very acidic conditions and lead to general corrosion in areas that are not easily drained or flushed...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001834
EISBN: 978-1-62708-241-9
... oxygen and water vapor to pass through the microcracks and pores, directly depositing onto the steel surface, forming oxidized Fe or fresh Cr. The penetration of oxidant gas into a void increases the partial oxygen pressure on the void, thereby oxidizing the iron. The mixed oxide scale cannot prevent...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0046252
EISBN: 978-1-62708-229-7
... occurred. Heavy deposits of carbon were found on the inner walls of the convolutions and on the back side of the reflector sleeve. The reflector was intended to prevent contaminants from reaching the inner walls of the convolutions and to streamline gas flow across the convolutions. Chemical...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... of thermal/environmental barrier coating (T/EBC) architecture showing primary environmental protective subsystems and the microstructure of coatings deposited by electron-beam physical vapor deposition. CMAS, calcium-magnesium-alumino-silicate. Reprinted with permission from Wiley Fig. 33 Effect...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
..., but the active corrosive agent is not always obvious. Consequently, collection and preservation of corrosion products, particularly loose, flaky, or powdery deposits, may be vital because chemical analysis of corrosion products can be a key factor in determination of cause. Characteristic Causes of Failure...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001791
EISBN: 978-1-62708-241-9
... physical, chemical, and physical–chemical methods or by inner anticorrosive treatment, such as inhibitors [ 3 ]. Some aims of these treatments are described as follows: Reduction of water hardness to avoid the formation of incrustations or deposits on the heating surfaces, which owing to its low...