February 27, 2010 PVD Coating

This is a glow discharge ball located in the Scitech museum in Western Australia

* Museum Exhibit Display
* Definition: Kinetic Plasma Display/Sculpture
* Total Height: 62 inches (5 foot 4 inches) tall.
* Globe Width/Diameter: 24 inches wide.
* Globe: Hand-blown Borosilicate/Pyrex (Corning) crystal sphere.
* Power supply (included): 240/220volts AC
* Cabinet Finish: Satin Black Matt
* Electrode: Thinly coated Silver Colloidal on inner electrode terminal wall.
* Fill Mixture: Research Purity Grade Inert Gas (non toxic) plus catalysts.
* Run time testing = 36 hours continuous for testing.
* Condition: Filled 2008 – ‘Vintage’ 1988 Borosilicate Corning Crystal globe.
* Color: Unique steel-blue & violet with crimson highlight effect
* Discharge effect: Single streamer from electrode to top of the sphere, which then splits and creates a “plasma dome” or “inverted cauldron” effect. The high conductance of the gas combination means a single fingertip will attract the plasma strands on contact. (see video) Glass walls are thermal shock resistant.


PVD Coating

Mark started working in the area of PVD coatings in 1994. He has worked both in research developing coatings and production for Kyocera Unimerco. You can find him on Google + and Twitter