In-flight particle characterization and coating formation under low pressure plasma spray condition

Original equiaxed 316L stainless steel coatings were successfully deposited by the low pressure plasma spray. For comparison, the coatings of 316L stainless steel with normal lamellar structure were also prepared by the air plasma spray (APS). The microstructures were investigated using optical micrograph (OM). The results show that the microstructures of LPPS 316L stainless steel coatings reveal the fine equiaxed microstructures like the solidified stainless steels,which are significantly different from that of APS coatings with lamellar structures.

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Fabrication of TiB2 Dispersed Fe-Cr Composite Coatings by Low Pressure Plasma Spray and Evaluation of Its Property

Shinku ◽

10.3131/jvsj.50.394 ◽

2007 ◽

Vol 50 (5) ◽

pp. 394-397

Author(s):

Masahiro FUKUMOTO ◽

Takurou HAMADA ◽

Motohiro YAMADA ◽

Tosiaki YASUI

Keyword(s):

Plasma Spray ◽

Composite Coatings ◽

Low Pressure ◽

Pressure Plasma ◽

Low Pressure Plasma Spray ◽

Low Pressure Plasma

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Oxidation Behavior of SiC Reinforced ZrB2 Composite Coating Prepared by Low Pressure Plasma Spray

Ceramic Transactions Series - High Temperature Ceramic Matrix Composites 8 ◽

10.1002/9781118932995.ch53 ◽

2014 ◽

pp. 481-486

Author(s):

Cui Hu ◽

Yaran Niu ◽

Hong Li ◽

Xuebin Zheng ◽

Chuanxian Ding ◽

...

Keyword(s):

Composite Coating ◽

Plasma Spray ◽

Oxidation Behavior ◽

Low Pressure ◽

Pressure Plasma ◽

Low Pressure Plasma Spray ◽

Low Pressure Plasma

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Application of low-pressure plasma-spray coatings.

Journal of the Metal Finishing Society of Japan ◽

10.4139/sfj1950.39.382 ◽

1988 ◽

Vol 39 (7) ◽

pp. 382-387

Author(s):

Yoshitaka KOJIMA ◽

Hiroshi FUKUI ◽

Naotatsu ASAHI

Keyword(s):

Plasma Spray ◽

Low Pressure ◽

Spray Coatings ◽

Pressure Plasma ◽

Plasma Spray Coatings ◽

Low Pressure Plasma Spray ◽

Low Pressure Plasma

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Fabrication of Dense Gadolinia-Doped Ceria Coatings via Very-Low-Pressure Plasma Spray and Plasma Spray–Physical Vapor Deposition Process

Coatings ◽

10.3390/coatings9110717 ◽

2019 ◽

Vol 9 (11) ◽

pp. 717 ◽

Cited By ~ 1

Author(s):

Jing Wen ◽

Chen Song ◽

Taikai Liu ◽

Ziqian Deng ◽

Shaopeng Niu ◽

...

Keyword(s):

Mechanical Properties ◽

Plasma Spray ◽

Vapor Deposition ◽

Physical Vapor Deposition ◽

Low Pressure ◽

Doped Ceria ◽

Large Area ◽

Pressure Plasma ◽

Low Pressure Plasma Spray ◽

Low Pressure Plasma

Gadolinia-doped ceria (GDC) is a promising electrolyte material for low-temperature solid oxide fuel cells (LT-SOFCs). Many works used ceramic sintering methods to prepare the GDC electrolyte, which was mature and reliable but presented difficulties in rapidly preparing a large area of GDC electrolyte without cracks. The low-pressure plasma spray (LPPS) process has the potential to solve this problem, but few studies have been conducted to date. In this work, submicron GDC powder was agglomerated by a spray drying method to achieve the proper granularity with D50 about 10 μm, and then two dense GDC coatings were fabricated with this agglomerated GDC powder using very-low-pressure plasma spray (VLPPS) and plasma spray–physical vapor deposition (PS-PVD), respectively. The results indicate that the two GDC coatings exhibited similar microstructure but with different densification mechanisms. The VLPPS coating was mainly built up in the form of liquid splats, which had lower mechanical properties due to the lower density and crystallinity, while the PS-PVD coating was co-deposited with the vapor clusters and liquid splats, which had higher density, crystallinity, and mechanical properties. It can therefore be concluded that the GDC coating prepared by PS-PVD is more appropriate for the LT-SOFC application.

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