Understanding the surface condition of gamma irradiated epoxy alumina nanocomposites adopting wavelets and fractal technique
The influence of alumina nanofiller and gamma irradiation on the surface potential variation of epoxy-alumina nanocomposites was investigated. The surface potential decay rate of nanocomposites has increased and the trap depth decreased with alumina nanoparticles addition to the matrix as well as up...
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| Veröffentlicht in: | Nano express 2020-12, Vol.1 (3), p.30003 |
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| creator | Neelmani Suematsu, H Sarathi, R |
| description | The influence of alumina nanofiller and gamma irradiation on the surface potential variation of epoxy-alumina nanocomposites was investigated. The surface potential decay rate of nanocomposites has increased and the trap depth decreased with alumina nanoparticles addition to the matrix as well as upon exposure to gamma irradiation, Surface roughness was estimated using the wavelets and fractal technique. Daubechies wavelet of order 4 (db4) wavelet was chosen as the most suitable mother wavelet for surface roughness measurement. Multi resolution signal decomposition (MRSD) analysis of surface profile has revealed that with increasing wt% of alumina nanofiller in the nanocomposites, reduction in surface roughness of nanocomposites was observed. Upon gamma irradiation, the surface roughness factor at each level of MRSD has increased marginally. Fractal dimension and lacunarity were calculated for unaged and gamma ray irradiated samples and it exhibits inverse correlation. |
| doi_str_mv | 10.1088/2632-959X/abbbc9 |
| format | Article |
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The surface potential decay rate of nanocomposites has increased and the trap depth decreased with alumina nanoparticles addition to the matrix as well as upon exposure to gamma irradiation, Surface roughness was estimated using the wavelets and fractal technique. Daubechies wavelet of order 4 (db4) wavelet was chosen as the most suitable mother wavelet for surface roughness measurement. Multi resolution signal decomposition (MRSD) analysis of surface profile has revealed that with increasing wt% of alumina nanofiller in the nanocomposites, reduction in surface roughness of nanocomposites was observed. Upon gamma irradiation, the surface roughness factor at each level of MRSD has increased marginally. Fractal dimension and lacunarity were calculated for unaged and gamma ray irradiated samples and it exhibits inverse correlation.</description><subject>Alumina</subject><subject>Aluminum oxide</subject><subject>Decay rate</subject><subject>Fractal geometry</subject><subject>Fractals</subject><subject>Gamma irradiation</subject><subject>Gamma rays</subject><subject>Nanocomposites</subject><subject>Nanoparticles</subject><subject>surface potential</subject><subject>Surface roughness</subject><subject>wavelets</subject><issn>2632-959X</issn><issn>2632-959X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kEtLAzEUhQdRsNTuXQbcuHBsHjPTmaUUX1BwY8FduM2jTekkY5JqC_54M1TUha7O5XDuudwvy84Jvia4rse0YjRvyuZlDIvFQjRH2eDbOv41n2ajENYYY1oS0tT1IPuYW6l8iGClsUsUVwqFrdcgFBIuedE4i5xGS2hbQMZ7kAaikkh1brdHsNm2xgKyYJ1wbeeCiSogkK6Lfd87vKmNismxEmkPIsIGRSVW1rxu1Vl2omET1OhLh9n87vZ5-pDPnu4fpzezXDDCYs5qjaWWVaWrulANKSWlzaQuykZhJmsGvWpMKlqm95mgTAkBlZxQKIgqFmyYXRx6O-_S2RD52m29TSc5LVlZ0aLCJKXwISW8C8ErzTtvWvB7TjDvMfOeI-858gPmtHJ5WDGu--nsYew44Yxjllgz3kmdold_RP9t_gSZZpCN</recordid><startdate>20201201</startdate><enddate>20201201</enddate><creator>Neelmani</creator><creator>Suematsu, H</creator><creator>Sarathi, R</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SR</scope><scope>7TB</scope><scope>7XB</scope><scope>88I</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>M2P</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><orcidid>https://orcid.org/0000-0002-1353-9588</orcidid><orcidid>https://orcid.org/0000-0002-2829-4720</orcidid></search><sort><creationdate>20201201</creationdate><title>Understanding the surface condition of gamma irradiated epoxy alumina nanocomposites adopting wavelets and fractal technique</title><author>Neelmani ; 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The surface potential decay rate of nanocomposites has increased and the trap depth decreased with alumina nanoparticles addition to the matrix as well as upon exposure to gamma irradiation, Surface roughness was estimated using the wavelets and fractal technique. Daubechies wavelet of order 4 (db4) wavelet was chosen as the most suitable mother wavelet for surface roughness measurement. Multi resolution signal decomposition (MRSD) analysis of surface profile has revealed that with increasing wt% of alumina nanofiller in the nanocomposites, reduction in surface roughness of nanocomposites was observed. Upon gamma irradiation, the surface roughness factor at each level of MRSD has increased marginally. 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| source | DOAJ Directory of Open Access Journals; Institute of Physics Open Access Journal Titles; EZB-FREE-00999 freely available EZB journals |
| subjects | Alumina Aluminum oxide Decay rate Fractal geometry Fractals Gamma irradiation Gamma rays Nanocomposites Nanoparticles surface potential Surface roughness wavelets |
| title | Understanding the surface condition of gamma irradiated epoxy alumina nanocomposites adopting wavelets and fractal technique |
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