Re: dielectric spray coating of stainless steel


Posted by Hong-Wei Wang (193.116.28.254) on 15:42:16 06/05/05

In Reply to: Re: insulating spray coating of stainless steel posted by J. Wu

: What I need is just a thin insulating film coated on the surface of stainless steel. The dielectric constant of the insulating material should be as small as possible. If I can just use a spray can to do it it would be perfect.
:
: Thanks.


_____________

Hi, there,

Thermal spray generally is limited to producing thick coatings, the minimum being inthe region of 25-50 um. There's virtually no limit to the kind of materials that can be sprayed, including elctrically insulating materials, such as alumina and zirconia.

If you are looking for a thin film, the thickness being generally regarded as being less than 5 um, I don't think TS is an option. This is also because of the much higher surface roughness of TS coatings as-sprayed.

With limit, TS can produce thinner "thick" coatings such as LPPS YSZ for making SOFCs - again, the coating in this case is still thicker and less favoured than those by PVD methods.

For this reason, those solution-based (sol-gel, electrophoretic deposition, etc) or vapour-based deposition mehtods are clearly advantageous.

Regards,

Hong-Wei Wang, ERA Technology Ltd.


Follow Ups:


Surface Engineering Forum

Surface Engineering Message Board Archive

Surface Engineering Message Board Archive Index

www.gordonengland.co.uk







Post A Message!

Gordon England Surface Engineering ForumPlease go to the new Surface Engineering Forum as this old message board is a read only archive. Please copy and paste relevant information or link to the page if you wish to reactivate a thread on the new forum.







Gordon England Independent Thermal Spray Coating Consultant
Telephone: +44 (0)1252 405186

Email: tsc@gordonengland.co.uk

Site Links



Introducing

Nature of Thermal Spray Coatings

Surface Engineering in a Nutshell

Surface Engineering Forum

Thermal Spray Gun Repair Service

Plasma Consumable Parts

Thermal Spray Powder Supplies

Applications:

Thermal Spray Coatings on Carbon and Glass Fibre Reinforced Polymers

HVOF Coating of Paper Making Roll

Abradable Coatings

Photomicrographs

Thermal Spray Processes:

Combustion Wire Thermal Spray Process

Combustion Powder Thermal Spray Process

Arc Wire Thermal Spray Process

Plasma Thermal Spray Process

HVOF Thermal Spray Process

HVAF Thermal Spray Process

Detonation Thermal Spray Process

Plasma Flame Theory

Cold Spray Coating Process



Wear and Use of Thermal Spray Coatings

Corrosion and Use of Thermal Spray Coatings

Glossary of Thermal Spray and Surface Engineering Terms

Image Directory for Thermal Spray Coatings

Plasma Gas Flow Information

Plasma Gas Flow Correction Calculator

Contact Form

Links to other interesting sites related to thermal spray and surface engineering

Reciprocal Links

Periodic Table of the Elements

SI Units

Calculators for Conversion between Units of Measurement

Hardness Testing

Surface Engineering Message Board Archive

Surface Engineering Message Board Archive Index

Photography Gallery2

Photography Gallery3


© Copyright Gordon England