High velocity thermal barrier coating
09-19-2011, 07:47 PM,
#1
High velocity thermal barrier coating
Is anyone aware of a thermal barrier coating material which can be sprayed via a high velocity process? I am looking for something like aluminum oxide in a NiCr matrix.
Reply
09-25-2011, 08:11 AM,
#2
RE: High velocity thermal barrier coating
(09-19-2011, 07:47 PM)djewell Wrote: Is anyone aware of a thermal barrier coating material which can be sprayed via a high velocity process? I am looking for something like aluminum oxide in a NiCr matrix.


Hi djewell,

I want to share that Aluminum Oxide and combination of Al2O3 + TiO2 coatings can be done very very easily on Detonation Spray Process which is high velocity process and i think this gun only can do ceramic coatings in High Velocity process family (which is not at all possible with HVOF process because of low heat input).

Regarding Thermal barrier coating, YSZ coatings with Plasma Spray Process (Yitria stabilized zirconia (or) Magnesia stabilized zirconia coating) is best suitable coating if you are looking for thermal barrier properties and please note that Magnesia stabilized Zirconia coating can be done with Powder Flame spray process also.

Because of any limitation if you want to coat Al2O3 for thermal barrier applications, then why u are selecting Nicr matrix because NiCr is very conductive then how u will get thermal barrier properties?

I also want to say that doing thermal barrier coatings with High velocity processes is also not a good idea because in high velocity processes porosity is very very low, because of that effect of thermal barrier properties will be reduced but you can get good bond strength if you coat with high velocity processes.


Regards,

SREENIVAS
Reply
09-04-2012, 07:50 PM,
#3
RE: High velocity thermal barrier coating
Good job!
Reply




Possibly Related Threads…
Thread Author Replies Views Last Post
  Yellow Spot on Thermal Barrier Coating achmadarifudinh 11 5,745 11-30-2020, 05:32 PM
Last Post: Lemster68
  roller surface high roughness Tungsten carbide coating Ra 0.15-0.3mm zhuminkun 6 5,766 02-08-2019, 04:59 AM
Last Post: Taz
  Thermal barrier delamination problem Hector Monjardin 2 4,749 09-25-2015, 11:05 AM
Last Post: Joris Kraak
  Masking tape for high-heat ceramic coating. texnicar 1 4,426 04-21-2015, 04:09 PM
Last Post: cris1904
  Thermal Barrier Coating Aluminum Substrate for corrosion resistance alaskangrown 4 7,077 03-02-2015, 06:43 PM
Last Post: alaskangrown
  Tangential velocity of work surface Airbin 7 8,566 03-13-2014, 09:43 AM
Last Post: sreenuvundela
  high temp during hvof coating ehsan 6 13,504 07-05-2011, 03:25 PM
Last Post: Justin
Cool Instrument to check coating thickness of Thermal Barrier Coatings odski0317 5 18,242 12-01-2010, 10:09 AM
Last Post: dienngothe
  Turbine high speed shaft RPM 6000 to be coating iwan-sedaryawan 4 8,240 12-10-2009, 03:46 PM
Last Post: Gordon
  About Thermal Barrier Coating Porosity Amanda 3 10,006 04-10-2009, 03:34 PM
Last Post: Gordon
  Thermal Barrier William Alexander 5 8,218 10-23-2008, 06:07 PM
Last Post: Gordon
  low conductive or high resistance coating pwglaesman 4 7,654 02-19-2008, 06:12 PM
Last Post: erick212



Users browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd