Citation: Yong Jun JI, Mai Zhi YANG Sheng, Min CAI. PHOTORESPONSE ON 1Cr18Ni9Ti STAINLESS STEEL IN PASSIVE AND TRANSPASSIVE REGIONS[J]. Chinese Chemical Letters, ;1993, 4(1): 83-86. shu

PHOTORESPONSE ON 1Cr18Ni9Ti STAINLESS STEEL IN PASSIVE AND TRANSPASSIVE REGIONS

Department of Chemistry, Peking University, Beijing 100871

Received Date: 15 July 1992

Photocurrent transients on stainless steel in the passive and transpassive regions in 0.5M H₂SO₄ were obtained using weak signal detecting technique. In passive region, the photoresponse an stainless steel exhibits n-type semiconductor characteristics. While changing from the passive to transpassive region, a n-p type transformation happens. This phenomenon is possibly caused by the change of the composition of passive film of stainless steel.
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