{"id":4521,"date":"2024-09-23T14:09:05","date_gmt":"2024-09-23T12:09:05","guid":{"rendered":"https:\/\/web.infn.it\/TechTransfer\/portfolio_page\/chemical-solution-for-polishing-niobium-by-electrolytic-polishing-plasma\/"},"modified":"2026-01-26T11:27:50","modified_gmt":"2026-01-26T10:27:50","slug":"chemical-solution-for-polishing-niobium-by-electrolytic-polishing-plasma","status":"publish","type":"portfolio_page","link":"https:\/\/web.infn.it\/TechTransfer\/en\/portfolio_page\/chemical-solution-for-polishing-niobium-by-electrolytic-polishing-plasma\/","title":{"rendered":"Chemical solution for polishing Niobium by Electrolytic Polishing Plasma"},"content":{"rendered":"

[vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern”][vc_column][vc_raw_html]W3dwc2VvX2JyZWFkY3J1bWJd[\/vc_raw_html][vc_empty_space][vc_column_text]<\/p>\n

Chemical solution for polishing Niobium by Electrolytic Polishing Plasma<\/span><\/h1>\n

[\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern”][vc_column width=”2\/3″][vc_empty_space][vc_column_text]An aqueous solution of fluorinated salts specifically for plasma electropolishing of niobium and its alloys, which enables effective polishing by reducing process times and the use of hazardous chemicals compared to the conventional chemical and electrochemical polishing techniques.[\/vc_column_text][vc_empty_space][vc_single_image image=”4522″ img_size=”full” qode_css_animation=””][vc_empty_space][vc_column_text]<\/p>\n

How does it work?<\/span><\/h3>\n

[\/vc_column_text][vc_empty_space][vc_column_text]The patent concerns a specific solution for the plasma electropolishing of niobium and its alloys, and a specific set of process parameters. Plasma electrolytic polishing, unlike standard electropolishing, works in a different regime, at higher currents and potentials. The main advantages are the polishing speed and the use of highly diluted aqueous solutions of salts and therefore less harmful to the environment and dangerous for the operator than those of the standard electropolishing that normally require concentrated acids. <\/p>\n

The invention allows a homogeneous polishing of Niobium and its alloys via plasma electrolytic polishing with better results than those of traditional electropolishing and significantly reduced process times. Roughness\u202fvalues of Ra<100 nm can be achieved with this technique
\nThe patented solution is based on ammonium fluoride (NH4F) and sodium fluoride (NaF).<\/p>\n

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Applications<\/span><\/h3>\n

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