Interaction of YBCO and PbO₂ particles in acetone

Authors

Jerome C. Taguba ⋅ PH National Institute of Physics, University of the Philippines Diliman
Mayrene A. Uy ⋅ PH National Institute of Physics, University of the Philippines Diliman
Jennieva Grace S. Torremoro ⋅ PH National Institute of Physics, University of the Philippines Diliman
Giselle S. Reyes ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The interaction of YBCO and PbO₂ particles suspended in acetone were determined using particle size and zeta potential measurements. Results show that YBCO particles are positively charged when mixed in acetone, while PbO₂ particles were determined to be negatively charged. In addition, upon testing the suspension of YBCO+PbO₂ in acetone, zeta potential measurements show a decrease in magnitude with respect to settling time. The addition of more PbO₂ into the YBCO-acetone suspension also pushed its zeta potential values to the unstable region (|ζ| < 30 mV). This explains why the sedimentation deposition fails to produce high quality films because of the relatively strong Coulombic attraction of YBCO and PbO₂ particles when mixed in acetone. The agglomeration of particles during the sedimentation deposition results to a non-uniform substrate surface coverage.

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Issue

2018: Proceedings of the 36th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2018-PA-03

Section

Poster Session A (Materials Science, Instrumentation, and Photonics)

Published

2018-05-18

How to Cite

[1]

JC Taguba, MA Uy, JGS Torremoro, GS Reyes, and RV Sarmago, Interaction of YBCO and PbO2 particles in acetone, Proceedings of the Samahang Pisika ng Pilipinas 36, SPP-2018-PA-03 (2018). URL: https://proceedings.spp-online.org/article/view/SPP-2018-PA-03.