Determination of the onset of the dezincification of .alpha.-brass using x-ray photoelectron (ESCA) spectroscopy

Barr, Tery L.; Hackenberg, J.

doi:10.1021/ja00384a024

Cited by 30 publications

(9 citation statements)

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“…Further increase of HMMM loading over 2.6 phr increased the widths of both zinc and oxygen peaks. For the HMMM loading of 5.2 phr, severe dezincification [40] in the adhesion interphase occurred.…”

Section: Examination Of the Adhesion Interphasementioning

confidence: 97%

On characterizing microscopically the adhesion interphase for the adhesion between metal and rubber compound part I. Effect of hexamethoxymethylmelamine in rubber compound

Jeon¹

2013

Journal of Adhesion Science and Technology

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To cite this article: Gyung Soo Jeon (2013) On characterizing microscopically the adhesion interphase for the adhesion between metal and rubber compound part I. Effect of hexamethoxymethylmelamine in rubber compound, JournalThe adhesion between hexamethoxymethylmelamine (HMMM)-containing rubber compounds and brass-plated steel cords was studied to understand the role of HMMM as an adhesion promoter. No improvement in adhesion after cure was shown with loading of HMMM in the range 1.3-5.2 phr, while enhancement of adhesion retention after humidity aging was observed with loading of HMMM in the range 1.3-5.2 phr. The adhesion interphase between the brassplated steel cord and the rubber compound subjected to humidity-aging treatment showed using Auger electron spectroscopy (AES) stabilized depth profile by HMMM incorporation as loading of HMMM, resulting in enhancement of adhesion retention.

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Section: Examination Of the Adhesion Interphasementioning

confidence: 97%

On characterizing microscopically the adhesion interphase for the adhesion between metal and rubber compound part I. Effect of hexamethoxymethylmelamine in rubber compound

Jeon¹

2013

Journal of Adhesion Science and Technology

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“…Generally, humidity is considered dangerous for brass alloy [15]. However, researchers always find difficulties in explaining the mechanisms of brass corrosion because of the complex nature of the metallic layer formed after the dezincification [15,16]. Furthermore, studies concerning the corrosion of brass consider commercial and standard samples to assess the corrosion mechanisms, whereas the corrosion of archaeological brass can be influenced by other factors (such as manufacturing processes, burial environment, and provenance) that cannot be reproduced with artificial ageing.…”

Section: Metallic Objectsmentioning

confidence: 99%

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

et al. 2020

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In the last decades, the interest in the development of protective coatings for movable and immovable Cultural Heritage (CH) assets has decidedly increased. This has been mainly prompted by the raising consciousness on preservation requirements for cultural artefacts and monuments, which has consequently determined the development of new protective products. From acrylic resins used at the end of the last century to the up-to-date biomaterials and nanoparticles employed nowadays, the research has made a giant step forward. This article reviews the progresses, the technical challenges, and the most recent advances in protective coatings for archaeological metal, glass, and stone artefacts. It aims at offering a comprehensive and critical overview of the progressions in conservation science and displaying how research has optimized polymers in order to solve deterioration problems. Attention is given to recently developed materials, hybrid coatings, and corrosion inhibitors. This work seeks to provide a reference point for future research and to offer a wide-ranging introduction on the newly available material technologies to restorers and conservators.

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“…Based on the previous surface characterization, it's reasonable to assume that brass dissolution in STW leads primarily to the formation of aqueous Cu(II) species and solid Cu 2 O, identical to the case of pure copper [30]. Zn dissolution of course occurs via the formation of aqueous Zn(II) species leaving behind a trivial amount of precipitated Zn(II) as an amorphous Zn oxide or Zn hydroxide [45][46][47][48]. These solid Zn species remained on the surface and were independent of galvanostatic current and time, as is shown in Fig.…”

Section: 6mentioning

confidence: 99%

“…Dezincificaiton is a major limiting factor for the use of brass in numerous applications and is also a model system for the selective dissolution of a binary alloy. It is not surprising that much attention has been paid to the mechanistic explanation of dezincification [1][2][3][4][5][6][7][8][9][10][11][12][13][14] and the characterization of the dezincification structure [15][16][17][18]. Numerous theories have been proposed, though, during the last decades, they can ultimately be categorized into two major groups: a mechanism of selective dissolution and a mechanism of dissolution-redeposition.…”

Section: Introductionmentioning

confidence: 99%

An in situ kinetic study of brass dezincification and corrosion

Zhou

Hutchison

Erning

et al. 2017

Electrochimica Acta

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The kinetics of the anodic dissolution of brass (CuZn42 and CuZn21Si3P) in synthetic tap water were investigated by atomic emission spectroelectrochemistry. Elemental Cu and Zn dissolution rates were measured in situ and in real time during galvanostatic dissolution. A complete mass/charge balance for the system yielded, as a function of applied current and a function of time, the quantity of Cu in the dezincification layer and the quantity of Cu and Zn in the oxide layer. In this way, a complete kinetic characterization of the fundamental chemical processes occurring during dezincification was realized for the first time. The oxide layer was composed primarily of Cu 2 O as indicated by grazing incidence XRD and Raman analysis. The soluble Cu oxidation product was determined to be Cu(II) by a mass/charge balance. Zn was oxidized to soluble Zn(II) leaving behind a trivial amount of solid Zn corrosion product on the surface. The kinetic analysis depicts a two-stage dissolution process of dezincification: a first stage of a rapid growth of the dezincified layer and a second stage where the growth of dezincified layer was much slower. The Cu 2 O layer grows continually during the exposure.

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Determination of the onset of the dezincification of .alpha.-brass using x-ray photoelectron (ESCA) spectroscopy

Cited by 30 publications

References 0 publications

On characterizing microscopically the adhesion interphase for the adhesion between metal and rubber compound part I. Effect of hexamethoxymethylmelamine in rubber compound

On characterizing microscopically the adhesion interphase for the adhesion between metal and rubber compound part I. Effect of hexamethoxymethylmelamine in rubber compound

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

An in situ kinetic study of brass dezincification and corrosion

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