Performance and Properties of a Ti-Al Composite Anodic Oxide Film on AC-Etched Al Foil
AC-etched aluminum foils for an Al electrolytic capacitor were covered with a TiO2 film by a sol–gel coating and then anodized to 25 V in an ammonium adipate solution. The structure, properties, and performance of the anodic oxide films were examined by transmission electron microscopy (TEM), scanni...
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| Veröffentlicht in: | Coatings (Basel) 2023-09, Vol.13 (9), p.1526 |
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| creator | Ban, Chaolei Luo, Xiangjun Sun, Jinchao Wu, Qingxu Yin, Yibin |
| description | AC-etched aluminum foils for an Al electrolytic capacitor were covered with a TiO2 film by a sol–gel coating and then anodized to 25 V in an ammonium adipate solution. The structure, properties, and performance of the anodic oxide films were examined by transmission electron microscopy (TEM), scanning electron microscopy (SEM), electrochemical impedance measurements (EIS), a general digital LCR meter, a TV characteristic tester, and multicycle pulse charging–discharging. It was found that the anodizing of aluminum coated with TiO2 films led to the formation of Al-Ti composite anodic oxide films, which consist of an outer Al-Ti composite oxide layer and an inner Al2O3 layer on the metal substrate. The capacitance (C25V) of the anodic oxide films formed on specimens with a TiO2 coating was about 10% larger than without a TiO2 coating. The specific resistance (Rox) of the Al-Ti composite film measured by EIS was lower than the blank one, accounting for a greater increase in the rise time (Tr) and a slight reduction in the withstand voltage (Vt). After hydration and a multicycle pulse charging–discharging destructive test, the Al-Ti composite anodic oxide film maintained the same good, comprehensive dielectric properties and performance as the blank one, thereby proving to be promising for acting as dielectric layers. |
| doi_str_mv | 10.3390/coatings13091526 |
| format | Article |
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The structure, properties, and performance of the anodic oxide films were examined by transmission electron microscopy (TEM), scanning electron microscopy (SEM), electrochemical impedance measurements (EIS), a general digital LCR meter, a TV characteristic tester, and multicycle pulse charging–discharging. It was found that the anodizing of aluminum coated with TiO2 films led to the formation of Al-Ti composite anodic oxide films, which consist of an outer Al-Ti composite oxide layer and an inner Al2O3 layer on the metal substrate. The capacitance (C25V) of the anodic oxide films formed on specimens with a TiO2 coating was about 10% larger than without a TiO2 coating. The specific resistance (Rox) of the Al-Ti composite film measured by EIS was lower than the blank one, accounting for a greater increase in the rise time (Tr) and a slight reduction in the withstand voltage (Vt). After hydration and a multicycle pulse charging–discharging destructive test, the Al-Ti composite anodic oxide film maintained the same good, comprehensive dielectric properties and performance as the blank one, thereby proving to be promising for acting as dielectric layers.</description><identifier>ISSN: 2079-6412</identifier><identifier>EISSN: 2079-6412</identifier><identifier>DOI: 10.3390/coatings13091526</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Air conditioning ; Aluminum ; Aluminum oxide ; Capacitors ; Casting ; Destructive testing ; Dielectric films ; Dielectric properties ; Dielectrics ; Discharge ; Electrical conductivity ; Electrodes ; Electron microscopy ; Electronic components industry ; Equipment and supplies ; Etching ; Hydration ; Metal foils ; Oxide coatings ; Pulse charging ; Scanning electron microscopy ; Sol-gel processes ; Substrates ; Thin films ; Titanium ; Titanium dioxide</subject><ispartof>Coatings (Basel), 2023-09, Vol.13 (9), p.1526</ispartof><rights>COPYRIGHT 2023 MDPI AG</rights><rights>2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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The structure, properties, and performance of the anodic oxide films were examined by transmission electron microscopy (TEM), scanning electron microscopy (SEM), electrochemical impedance measurements (EIS), a general digital LCR meter, a TV characteristic tester, and multicycle pulse charging–discharging. It was found that the anodizing of aluminum coated with TiO2 films led to the formation of Al-Ti composite anodic oxide films, which consist of an outer Al-Ti composite oxide layer and an inner Al2O3 layer on the metal substrate. The capacitance (C25V) of the anodic oxide films formed on specimens with a TiO2 coating was about 10% larger than without a TiO2 coating. The specific resistance (Rox) of the Al-Ti composite film measured by EIS was lower than the blank one, accounting for a greater increase in the rise time (Tr) and a slight reduction in the withstand voltage (Vt). After hydration and a multicycle pulse charging–discharging destructive test, the Al-Ti composite anodic oxide film maintained the same good, comprehensive dielectric properties and performance as the blank one, thereby proving to be promising for acting as dielectric layers.</description><subject>Air conditioning</subject><subject>Aluminum</subject><subject>Aluminum oxide</subject><subject>Capacitors</subject><subject>Casting</subject><subject>Destructive testing</subject><subject>Dielectric films</subject><subject>Dielectric properties</subject><subject>Dielectrics</subject><subject>Discharge</subject><subject>Electrical conductivity</subject><subject>Electrodes</subject><subject>Electron microscopy</subject><subject>Electronic components industry</subject><subject>Equipment and supplies</subject><subject>Etching</subject><subject>Hydration</subject><subject>Metal foils</subject><subject>Oxide coatings</subject><subject>Pulse charging</subject><subject>Scanning electron microscopy</subject><subject>Sol-gel processes</subject><subject>Substrates</subject><subject>Thin films</subject><subject>Titanium</subject><subject>Titanium dioxide</subject><issn>2079-6412</issn><issn>2079-6412</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkE1Lw0AQhoMoWGrvHhc8p-5Hs8keQ2hVKLSH6jVM9qNuSXbjbgr6712pB3HmMMPwvDPDm2X3BC8ZE_hRepisO0bCsCAF5VfZjOJS5HxF6PWf_jZbxHjCKQRhFRGz7G2vg_FhACc1AqfQPvhRh8nqiLxBgA42r3vU-GH00U4a1c4rK9Hu0yqNNrYfkHeobvL1JN-1QondeNvfZTcG-qgXv3WevW7Wh-Y53-6eXpp6m0tW0Ck3pem46ZRUWmPMuw6UZKwqoDBEVcKUIAgoKBkV6V1KwfCK8QqoAs1XmLF59nDZOwb_cdZxak_-HFw62dKKCyo4pkWilhfqCL1urTN-CiBTKj1Y6Z02Ns3rkld0JURJkgBfBDL4GIM27RjsAOGrJbj9cbz97zj7Boz2dCA</recordid><startdate>20230901</startdate><enddate>20230901</enddate><creator>Ban, Chaolei</creator><creator>Luo, Xiangjun</creator><creator>Sun, Jinchao</creator><creator>Wu, Qingxu</creator><creator>Yin, Yibin</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</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>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20230901</creationdate><title>Performance and Properties of a Ti-Al Composite Anodic Oxide Film on AC-Etched Al Foil</title><author>Ban, Chaolei ; Luo, Xiangjun ; Sun, Jinchao ; Wu, Qingxu ; Yin, Yibin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c352t-f7fb6fbdcdee006bbadc3385a5f1d89f7a91ada732938122af68368a2dae64033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Air conditioning</topic><topic>Aluminum</topic><topic>Aluminum oxide</topic><topic>Capacitors</topic><topic>Casting</topic><topic>Destructive testing</topic><topic>Dielectric films</topic><topic>Dielectric properties</topic><topic>Dielectrics</topic><topic>Discharge</topic><topic>Electrical conductivity</topic><topic>Electrodes</topic><topic>Electron microscopy</topic><topic>Electronic components industry</topic><topic>Equipment and supplies</topic><topic>Etching</topic><topic>Hydration</topic><topic>Metal foils</topic><topic>Oxide coatings</topic><topic>Pulse charging</topic><topic>Scanning electron microscopy</topic><topic>Sol-gel processes</topic><topic>Substrates</topic><topic>Thin films</topic><topic>Titanium</topic><topic>Titanium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ban, Chaolei</creatorcontrib><creatorcontrib>Luo, Xiangjun</creatorcontrib><creatorcontrib>Sun, Jinchao</creatorcontrib><creatorcontrib>Wu, Qingxu</creatorcontrib><creatorcontrib>Yin, Yibin</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Coatings (Basel)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ban, Chaolei</au><au>Luo, Xiangjun</au><au>Sun, Jinchao</au><au>Wu, Qingxu</au><au>Yin, Yibin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Performance and Properties of a Ti-Al Composite Anodic Oxide Film on AC-Etched Al Foil</atitle><jtitle>Coatings (Basel)</jtitle><date>2023-09-01</date><risdate>2023</risdate><volume>13</volume><issue>9</issue><spage>1526</spage><pages>1526-</pages><issn>2079-6412</issn><eissn>2079-6412</eissn><abstract>AC-etched aluminum foils for an Al electrolytic capacitor were covered with a TiO2 film by a sol–gel coating and then anodized to 25 V in an ammonium adipate solution. The structure, properties, and performance of the anodic oxide films were examined by transmission electron microscopy (TEM), scanning electron microscopy (SEM), electrochemical impedance measurements (EIS), a general digital LCR meter, a TV characteristic tester, and multicycle pulse charging–discharging. It was found that the anodizing of aluminum coated with TiO2 films led to the formation of Al-Ti composite anodic oxide films, which consist of an outer Al-Ti composite oxide layer and an inner Al2O3 layer on the metal substrate. The capacitance (C25V) of the anodic oxide films formed on specimens with a TiO2 coating was about 10% larger than without a TiO2 coating. The specific resistance (Rox) of the Al-Ti composite film measured by EIS was lower than the blank one, accounting for a greater increase in the rise time (Tr) and a slight reduction in the withstand voltage (Vt). After hydration and a multicycle pulse charging–discharging destructive test, the Al-Ti composite anodic oxide film maintained the same good, comprehensive dielectric properties and performance as the blank one, thereby proving to be promising for acting as dielectric layers.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/coatings13091526</doi><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; MDPI - Multidisciplinary Digital Publishing Institute; Alma/SFX Local Collection |
| subjects | Air conditioning Aluminum Aluminum oxide Capacitors Casting Destructive testing Dielectric films Dielectric properties Dielectrics Discharge Electrical conductivity Electrodes Electron microscopy Electronic components industry Equipment and supplies Etching Hydration Metal foils Oxide coatings Pulse charging Scanning electron microscopy Sol-gel processes Substrates Thin films Titanium Titanium dioxide |
| title | Performance and Properties of a Ti-Al Composite Anodic Oxide Film on AC-Etched Al Foil |
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