Gordon England Surface Engineering Forum



Re: coating to carbon fibre re.polymer

Posted by Gordon Engalnd (62.252.0.4) on 13:06:29 09/08/04

In Reply to: coating to carbon fibre re.polymer posted by ben tebbutt

Hi Ben

This sounds like an interesting application, but I would foresee a fair amount of development work. Thermal spray coatings are successfully used to reface metallic flywheels, but I have not come across this with polymer based materials. My initial concerns would be the temperature of the flywheel/coating during service and the suitability of thick metallic coatings.

Initially, I would consider trying a relatively thin oxide ceramic coating. Very hard and wear resistant, but possibly more important would be the thermal barrier properties. You may also need to experiment with the mating friction material.

A slightly similar application involving coating aluminium/silicon carbide metal matrix composite brake discs. Metallic coatings work fine with low to moderate use, but in racing conditions the aluminium under the coating melts and causes severe failure. The use of ceramic coatings and special brake pad materials cure this problem.
I suspect the flywheels do not see these kinds of extreme temperatures, but then polymer based substrates have a much lower service temperature than these MMC materials.

Hope this helps

Regards Gordon



Follow Ups:


Surface Engineering Forum

Surface Engineering Message Board Archive

Surface Engineering Message Board Archive Index

Search Message Boards Archives

www.gordonengland.co.uk





GoogleCustom Search

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

PLEASE CLICK HERE TO EMAIL

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

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

Search This Site


Photography Gallery2

Photography Gallery3


© Copyright Gordon England