硫酸-甲醇體系鎢電解拋光的可行性研究

【簡(jiǎn)介】

摘要：以硫酸_甲醇酸性體系作為電解液，對(duì)鎢箔進(jìn)行電解拋光研究。拋光后鎢的表面均方根粗糙度和反射率的測(cè)試結(jié)果表明，該體系完全適用于金屬鎢的電化學(xué)拋光。對(duì)鎢的陽(yáng)極溶解行為進(jìn)行了分析，討論了溶液組成、槽電壓、溫度和攪拌速率對(duì)電拋光后鎢表面粗糙度的影響。初步確定了金屬鎢電解拋光的工藝參數(shù)為：硫酸與甲醇的體積比l：7，槽電壓l5～22V，溫度l5～25 ℃，攪拌速率10m／s。

關(guān)鍵詞：鎢；電解拋光；表面粗糙度；反射率

中圖分類號(hào)：TG580．692．2    文獻(xiàn)標(biāo)志碼：A

文章編號(hào)：1004—227X(2009)03—0027—04

Feasibility of tungsten electropolishing in sulfuric acid- methanol electrolyte／／SONG Ping，XING Pi-feng*，CHEN Jia-jun，LI Chao-yang，XIE Jun。

Abstract：The electropolishing of tungsten was studied in a sulfuric acid-methanol electrolyte．The test results of root mean square roughness and reflectance of the electropolished tungsten foil surface confirmed the feasibility of sulfuric acid-methanol electrolyte to tungsten．111e anodic dissolution behavior of tungsten was analyzed．The effects of electrolyte composition，cell voltage，temperature and stirring rate on the surface roughness of electropolished tungsten were discussed．The suitable parameters were preliminarily determined：volume ratio of sulfuric acid to methanol l：7． temperature l 5．25℃，cell voltage l 5-24 V，and stirring rate 10 m/s．

Keywords：tungsten；electropolishin9；surface roughness； reflectance

First．author’S address：Department of Physics and Electronic Information，West China Normal University， Nanchon9 637002，China

1   前言