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- 01GMVB0J8W3FGN3F0X9XMHHVC6 classification C3.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 date "2022".
- 01GMVB0J8W3FGN3F0X9XMHHVC6 language "eng".
- 01GMVB0J8W3FGN3F0X9XMHHVC6 type conference.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 hasPart 01GMXP3C96M0BSH4R9GAQBRHJH.pdf.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 subject "Technology and Engineering".
- 01GMVB0J8W3FGN3F0X9XMHHVC6 doi "10.5281/zenodo.7405295".
- 01GMVB0J8W3FGN3F0X9XMHHVC6 presentedAt urn:uuid:25820796-8c9c-421e-8a10-36f369fc9f34.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 abstract "Electrophoretic deposition (EPD) is a widely used technique for coating surfaces with colloidal particles. When using apolar solvents, one or more surfactants are required as charging agents. These surfactant molecules do not only adsorb to the particles, assisting in particle charging, but also aggregate into inverse micelles of which a small fraction also become charged. Since these charged inverse micelles (CIMs) are also subject to electrophoresis, they play a key role in the overall dynamics of the EPD process. Transient current analysis (TCA) is a useful technique for characterizing the dynamics of both solid particles and CIMs during EPD. In this technique a dispersion is placed between parallel electrodes, a voltage sequence is applied, and the resulting currents are measured and analyzed. In this work we present TCA results for a model system for EPD, based on Al2O3 nanoparticles (\O=140 nm) plus surfactant additives in a nonpolar solvent. Measurements are performed with and without particles. The currents are analyzed and compared to simulations based on the Poisson-Nernst-Planck equations, generation-recombination of CIMs and Mott-Gurney-like effects at the interfaces. The surfactants used in our dispersions are a cationic Cr(III) salt and a viscosity modifier based on polyalkylmethacrylate (PAMA). From the TCA and simulation the mobilities and concentrations of the particles and CIMs are obtained. Electric-field screening due to space-charge effects and long-term currents due to net CIM generation are investigated. And from currents in which the voltage is suddenly reversed information is obtained on the adsorption and desorption behavior of charges at the interfaces. Our work provides a good understanding of the physics of EPD in the chosen model system. The TCA method can be further used to analyze other and possibly more complex EPD systems and may be useful for real-time control of the process.".
- 01GMVB0J8W3FGN3F0X9XMHHVC6 author 6A71CA2E-052D-11E3-B47B-386110BDE39D.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 author F43C351E-F0ED-11E1-A9DE-61C894A0A6B4.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 author F71B7E2A-F0ED-11E1-A9DE-61C894A0A6B4.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 dateCreated "2022-12-21T21:56:40Z".
- 01GMVB0J8W3FGN3F0X9XMHHVC6 dateModified "2024-11-27T13:28:31Z".
- 01GMVB0J8W3FGN3F0X9XMHHVC6 name "Analysing electrophoretic deposition using transient current measurements".
- 01GMVB0J8W3FGN3F0X9XMHHVC6 pagination urn:uuid:051b6132-c8df-4a9d-804a-91fa593b60e3.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 sameAs LU-01GMVB0J8W3FGN3F0X9XMHHVC6.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 sourceOrganization urn:uuid:b2e1cfa6-d288-45a7-baef-51a02273f3dd.
- 01GMVB0J8W3FGN3F0X9XMHHVC6 type C3.