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Determination of the corrosion rate inside historical brass wind instruments – Proof of concept
Author(s) -
Elsener B.,
Cocco F.,
Fantauzzi M.,
Palomba S.,
Rossi A.
Publication year - 2016
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.201608996
Subject(s) - brass , corrosion , electrochemistry , mouthpiece , materials science , metallurgy , open circuit voltage , x ray photoelectron spectroscopy , analytical chemistry (journal) , chemistry , electrode , chemical engineering , electrical engineering , voltage , engineering , physics , acoustics , environmental chemistry , copper
An electrochemical sensor has been tested on brass reference samples and applied on a mouthpiece of a historical brass instrument. Using a phosphate buffer solution pH 7 with 10 −2 , 10 −3 and 10 −4 M NaCl, the electrochemical response (open circuit potential, polarisation resistance) of the sensor corresponds to the results obtained in a traditional electrochemical cell. XPS surface analysis has shown that the brass surface composition after 7 min contact with the sensor is not altered when using 10 −3 or 10 −4 M NaCl. The sensor is fit for purpose and has already been applied in brass wind instruments.