Cryogenic fluid composition

Abstract

A cryogenic fluid composition, and method of forming same, having hyperbaric, lubricating and cooling properties includes selectivity combining a solid phase carbon dioxide, an inert diluent gas and additives in various proportions. The cryogenic machining fluid can be derived by combining a solid carbon dioxide coolant, which may contain or entrain one or more machining lubricant additives, and a diluent phase which is an inert and relatively non-condensing gas phase in various concentrations. The cryogenic fluid composition can be used in cleaning, machining or manufacturing processes to cool, lubricate or ablate a substrate. The cryogenic fluid composition can also be used in conjunction with laser treatment or machining processes without adversely affecting lasing qualities of the laser.

1 . A cryogenic composite fluid for treating a substrate during a machining process, the cryogenic composite fluid comprising: 
 a sublimable coolant phase comprising solid carbon dioxide particles; and    a diluent phase derived from an inert gas, whereupon combining each phase the resultant cryogenic composite fluid can be used during the machining process for cooling purposes, heating purposes, lubrications purposes or any combination thereof.