Patent · US Expired

Pulsed arc molecular beam process

US6613198B2 · kind B2 · utility

1Cited by
5References
20Claims
0Family size

Inventors

Key dates

Filing dateJan 28, 2002
Grant dateSep 2, 2003
Priority date
Expiry dateApr 1, 2022

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S977/844
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A process for preparing a material in which a gas mixture is subjected to a a temperature of at least 1,000 degrees Celsius while its pressure increased to at least 1,000 Torr. The pressurized hot gas mixture, which contains inert gas and fullerene ions, is then quenched by decreasing its temperature to a temperature of less than 500 degrees Celsius in a period of less than about 1 millisecond, and by decreasing its pressure of to a pressure of less than about 1 Torr in a period of less than about 10 milliseconds.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.