Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/10595
Full metadata record
DC FieldValueLanguage
dc.coverage.spatialBrass corrosion in natural seawateren_US
dc.date.accessioned2013-08-20T08:49:19Z-
dc.date.available2013-08-20T08:49:19Z-
dc.date.issued2013-08-20-
dc.identifier.urihttp://hdl.handle.net/10603/10595-
dc.description.abstractCopper and its alloys are widely used in marine environments due to their corrosion resistance, mechanical workability, excellent electrical and thermal conductivities and good resistance to biofouling. Brass is used extensively in marine applications and in heat exchanger tubes, for example in desalination and power generation, respectively. The dezincification of brass has attracted the attention of researcher for some decades and is still the subject of increasing attention. It is particularly relevant to India possessing larger coastal area where various industries extensively use brass in desalination, power generation and cooling water systems. In the present study, the corrosion inhibition and dezincification performance of some alkyl substituted thiadiazole derivatives on brass in natural seawater have been investigated by potentiodynamic polarisation and the electrochemical impedance spectroscopic (EIS) measurements. The adsorption of the inhibitors on the brass surface in natural seawater obeyed Langmiur adsorption isotherm. Inductively Coupled Plasma Atomic Emission Spectroscopic (ICPAES) measurement was used to determine the extent of metal ions viz: Cu and Zn leached out from the brass during the polarisation experiments in the absence and presence of optimum concentration (10-3 M) of the studied thiadiazole, piperidine and oxadiazole derivatives. ICP-AES analysis revealed that the investigated inhibitors effectively control the dezincification of brass. The passive film formed on the surface of the brass was characterised by Fourier Transform Infrared Spectroscopy (FT-IR), Energy Dispersive X-ray Analysis (EDX) and Scanning Electron Microscopy (SEM). FT-IR spectra showed that the protective film consists of the studied thiadiazole, piperidine and oxadiazole derivatives. SEM and EDX analysis showed that the inhibitor film is formed on the brass surface, which prevents the growth of oxides and chlorides of Cu and Zn. newlineen_US
dc.format.extentxxiv, 177en_US
dc.languageEnglishen_US
dc.relation151en_US
dc.rightsuniversityen_US
dc.titleInhibition effect of Thiadiazole Piperidine and Oxadiazole derivatives on brass corrosion in natural seawateren_US
dc.title.alternativeen_US
dc.creator.researcherJoseph Raj Xen_US
dc.subject.keywordThiadiazole, Piperidine, Oxadiazole, brass corrosion, natural seawater, Indiaen_US
dc.description.noteNoneen_US
dc.contributor.guideRajendran, N.en_US
dc.publisher.placeChennaien_US
dc.publisher.universityAnna Universityen_US
dc.publisher.institutionFaculty of Science and Humanitiesen_US
dc.date.registered3, January 2011en_US
dc.date.completeden_US
dc.date.awardeden_US
dc.format.dimensions23.5 cm x 15 cmen_US
dc.format.accompanyingmaterialNoneen_US
dc.source.universityUniversityen_US
dc.type.degreePh.D.en_US
Appears in Departments:Faculty of Science and Humanities

Files in This Item:
File Description SizeFormat 
01_title.pdfAttached File49.1 kBAdobe PDFView/Open
02_certificates.pdf452.52 kBAdobe PDFView/Open
03_abstract.pdf36.97 kBAdobe PDFView/Open
04_acknowledgement.pdf14.52 kBAdobe PDFView/Open
05_contents.pdf79.4 kBAdobe PDFView/Open
06_chapter 1.pdf191.22 kBAdobe PDFView/Open
07_chapter 2.pdf172.1 kBAdobe PDFView/Open
08_chapter 3.pdf5.38 MBAdobe PDFView/Open
09_chapter 4.pdf56.12 kBAdobe PDFView/Open
10_references.pdf92.51 kBAdobe PDFView/Open
11_publications.pdf16.52 kBAdobe PDFView/Open
12_vitae.pdf12.24 kBAdobe PDFView/Open


Items in Shodhganga are protected by copyright, with all rights reserved, unless otherwise indicated.