METHODS AND APPARATUS FOR MANUFACTURING NANO SIZED LOW MELTING GLASS POWDER

摘要

PURPOSE: A method and apparatus for manufacturing glass nanopowder of a low melting point are provided to manufacture bismuth-based glass nanopowder without environmental contamination by using thermal plasma from a DC source. CONSTITUTION: A bismuth-based glass powder precursor of a low melting point is prepared(S11). The glass powder precursor is injected into a reaction tube of a plasma processing apparatus(S12). Thermal plasma is applied to the glass powder precursor by a DC source. The glass powder precursor is vaporized(S13). Gas obtained by vaporizing the glass powder precursor is rapidly cooled(S14). [Reference numerals] (S11) Preparing a glass powder precursor; (S12) Injecting the precursor into a reaction tube; (S13) Vaporizing the precursor by thermal plasma; (S14) Rapidly cooling the precursor; (S15) Injecting oxygen gas; (S16) Capturing amorphous nano glass powder;