| abstract |
Processes for working of refractory metals and other metals employing a lubricant comprising perfluorocarbon compounds (PFCs), including aliphatic perfluorocarbon compounds (.alpha.-PFCs) having the general formula: CnF2n+2, perfluoromorpholines having the general formula: CnF2n+1ON, perfluoroamines (PFAs) and highly fluorinated amines (HFAs), and perfluoroethers (PFEs) and highly fluorinated ethers (HFEs), and their polymerization products. |