Mechanical treatment of aluminum plate surfaces for improvements of capacitance and dielectric permittivity.
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| Title: | Mechanical treatment of aluminum plate surfaces for improvements of capacitance and dielectric permittivity. |
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| Authors: | Ebrahim, M.R.1,2 (AUTHOR) mr.ebrahim@nrc.sci.eg, Labeeb, Ahmad M.1,2 (AUTHOR) ahmad.m.labeeb@gmail.com |
| Source: | Physica B. Oct2023, Vol. 666, pN.PAG-N.PAG. 1p. |
| Subjects: | Aluminum plates, Surface plates, Electric capacity, Dielectrics, Permittivity, Dielectric relaxation, Dielectric properties |
| Abstract: | The surface mechanical alloying (SMA) technique achieved high capacitances, improved capacitance (C) and dielectric permittivity (ε′) of mixed Aluminum/fiber-glass 'Al/F-glass' formed on aluminum plates. The radiofrequency RF range 0.1–106 Hz was applied on the Al/F-glass on Al plates, acting as parallel electrodes sandwiching the mixed ceramic Al/F-glass as dielectric. Capacitance increase observed after surface alloying on treated Al with small 1.5 balls than 6 mm balls on Al-plate & 1 A l-plate 2 respectively, giving twice the permittivity constant of the annealed Al. Deformation micro-scale cavities in Al surfaces played important role in raising capacitance and permittivity values; Interpreted as condensers inside a condenser caused capacitance increase according Maxwell-Wagner-Sillars effect. Dielectric relaxation model Havriliak-Negami Model was used to examine the occurrence of the Maxwell-Wagner-Sillars effect in alloyed Al/F-glass surfaces on Al plates, which confirms micro-cavities important role due to pre-treatment of Al surfaces. • Energy storage through surface alloying on Al. • Alloying of dielectrics on Severe Deformed Al surface. • Surface alloyed Al/F-glass for energy storage. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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