Flakes made of materials such as glass

摘要

The present invention provides flake having a thickness up to 350 nm, the flake being made of basalt, ceramics, alumina, graphite, a metal, a metal oxide or a combination of any two or more thereof. Equipment for manufacturing such flake is also described as is a method for the manufacture of the flake. The equipment comprises a cup mounted for rotation and for receiving molten glass. The equipment further comprises either insulating means extending at least partially around said cup or means for heating the cup while it is rotating.

主权项

1. Glass flake having a mean thickness of 40 to 200 nm, wherein at least 80% of the flake is within 20% of the nominal mean thickness.