Posted by Gordon England on November 05, 2003 at 03:27:29:
In Reply to: TiO2 posted by Kenneth on November 03, 2003 at 23:46:27:
: I am trying to develop a transparent coating onto steel using PVD of titanium oxide. Do you think it works? Are there other materials i can use? Thanks in advance
Hi Kenneth
It depends on what you mean by transparent, invisible or clear to the naked eye or transparent to a specific frequency of electromagnetic radiation. My experience of this is limited, but I would guess that composition and thickness of the coating would be critical to the optical properties.
Off topic a little, titanium dioxide powder is normal white (used as white paint pigment)but the thermally sprayed coating is black! Aluminium oxide powder is white and the thermal spray coatings are also white. Increasing additions of titanium dioxide to aluminium oxide turn the coating from white through blue grey to black. Years ago I found that very curious, I'm still not quite sure why this happens!
Regards Gordon
Follow Ups:
Surface Engineering Forum
Surface Engineering Message Board Archive
Surface Engineering Message Board Archive Index
www.gordonengland.co.uk
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
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