an electropositive metal, such as zinc, that protects a more important electronegative part by corroding when attacked by electrolytic action
sacrificial anode in American English
noun
Chemistry
an anode that is attached to a metal object subject to electrolysis and is decomposed instead of the object
Word origin
[1975–80]This word is first recorded in the period 1975–80. Other words that entered Englishat around the same time include: front-load, gridlock, methanogen, surrogate mother, videotex
Examples of 'sacrificial anode' in a sentence
sacrificial anode
The protected pipeline with a sacrificial anode suffers less corrosion interference than unprotected pipeline.
Yaping Zhang, Qiong Feng, Lianqing Yu, Chi-Man Lawrence Wu, Siu-Pang Ng, Xiao Tang 2019, 'Numerical modelling of buried pipelines under DC stray current corrosion', Journal of Electrochemical Science and Engineeringhttp://pub.iapchem.org/ojs/index.php/JESE/article/view/567. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The galvanostatic electrolysis was performed under carbon dioxide atmosphere without sacrificial anode in a divided cell.
Jiang Li, Shinsuke Inagi, Toshio Fuchigami, Hideo Hosono, Setsuro Ito 2014, 'Selective monocarboxylation of olefins at 12CaO·7Al2O3 electride cathode', Electrochemistry Communicationshttp://www.sciencedirect.com/science/article/pii/S1388248114001180. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Titanium sheet was used as the sacrificial anode and galvanized iron sheet was used as the cathode.
Ramakrishnan Kamaraj, Pandian Ganesan, Subramanyan Vasudevan 2014, 'Use of hydrous titanium dioxide as potential sorbent for the removal of manganesefrom water', Journal of Electrochemical Science and Engineeringhttp://www.pub.iapchem.org/ojs/index.php/JESE/article/view/149. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The system comprised a steel bar cathode connected to a zinc sacrificial anode, both placed in aqueous medium.
Luís Carlos Matos, José Inácio Martins 2018, 'Analysis of an Educational Cathodic Protection System with a Single Drainage Point:Modeling and Experimental Validation in Aqueous Medium', Materialshttps://www.mdpi.com/1996-1944/11/11/2099. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)