Influence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization

The active development of the power electronics market and a constant increase in the prices of components require new materials and approaches, including a power module packaging technology. The use of aluminum instead of copper in the power module baseplate is an interesting and promising solution...

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Autores principales:	Oleg S. Medvedev, Ekaterina E. Alyasova, Rona E. Besprozvannaya, Asadula A. Gadzhiev, Veronika V. Krivova, Andrey S. Kondratev, Artem E. Kim, Pavel A. Novikov, Anatoliy A. Popovich
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	anodic aluminum oxide adhesion insulated metal substrate Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/a2ea513d54d24821aa1af9fafaf434e1
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spelling	oai:doaj.org-article:a2ea513d54d24821aa1af9fafaf434e12021-11-25T18:15:47ZInfluence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization10.3390/ma142270281996-1944https://doaj.org/article/a2ea513d54d24821aa1af9fafaf434e12021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7028https://doaj.org/toc/1996-1944The active development of the power electronics market and a constant increase in the prices of components require new materials and approaches, including a power module packaging technology. The use of aluminum instead of copper in the power module baseplate is an interesting and promising solution. The insulated metal baseplate is one of the most extensively developed technologies nowadays. The object of this study is an insulated metal substrate based on anodized aluminum. The main goal of the article is the comparison of copper topology adhesion to an anodized aluminum oxide layer formed on different aluminum alloys with aluminum content of at least 99.3 wt %. Peel test and pull-off adhesions showed a twofold difference for both aluminum alloys. The high ordered defect-free anodized alumina formed on alloys with copper content of 0.06 wt % had a mean pull-off adhesion of 27 N/mm<sup>2</sup> and hardness of 489 HV. In the case of the alloy with copper content of around 0.15 wt %, it had hardness of 295 HV and a mean pull-off adhesion of 12 N/mm<sup>2</sup>. The results of our microstructure investigation showed that anodized alumina based on alloys with copper content of around 0.15 wt % is fragile due to spherical holes. Summing up the results, it can be concluded that not all initial impurities are critical for anodized alumina, but some, specifically copper, dramatically decreased the mechanical properties of anodized alumina.Oleg S. MedvedevEkaterina E. AlyasovaRona E. BesprozvannayaAsadula A. GadzhievVeronika V. KrivovaAndrey S. KondratevArtem E. KimPavel A. NovikovAnatoliy A. PopovichMDPI AGarticleanodic aluminum oxideadhesioninsulated metal substrateTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7028, p 7028 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	anodic aluminum oxide adhesion insulated metal substrate Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	anodic aluminum oxide adhesion insulated metal substrate Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Oleg S. Medvedev Ekaterina E. Alyasova Rona E. Besprozvannaya Asadula A. Gadzhiev Veronika V. Krivova Andrey S. Kondratev Artem E. Kim Pavel A. Novikov Anatoliy A. Popovich Influence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization
description	The active development of the power electronics market and a constant increase in the prices of components require new materials and approaches, including a power module packaging technology. The use of aluminum instead of copper in the power module baseplate is an interesting and promising solution. The insulated metal baseplate is one of the most extensively developed technologies nowadays. The object of this study is an insulated metal substrate based on anodized aluminum. The main goal of the article is the comparison of copper topology adhesion to an anodized aluminum oxide layer formed on different aluminum alloys with aluminum content of at least 99.3 wt %. Peel test and pull-off adhesions showed a twofold difference for both aluminum alloys. The high ordered defect-free anodized alumina formed on alloys with copper content of 0.06 wt % had a mean pull-off adhesion of 27 N/mm<sup>2</sup> and hardness of 489 HV. In the case of the alloy with copper content of around 0.15 wt %, it had hardness of 295 HV and a mean pull-off adhesion of 12 N/mm<sup>2</sup>. The results of our microstructure investigation showed that anodized alumina based on alloys with copper content of around 0.15 wt % is fragile due to spherical holes. Summing up the results, it can be concluded that not all initial impurities are critical for anodized alumina, but some, specifically copper, dramatically decreased the mechanical properties of anodized alumina.
format	article
author	Oleg S. Medvedev Ekaterina E. Alyasova Rona E. Besprozvannaya Asadula A. Gadzhiev Veronika V. Krivova Andrey S. Kondratev Artem E. Kim Pavel A. Novikov Anatoliy A. Popovich
author_facet	Oleg S. Medvedev Ekaterina E. Alyasova Rona E. Besprozvannaya Asadula A. Gadzhiev Veronika V. Krivova Andrey S. Kondratev Artem E. Kim Pavel A. Novikov Anatoliy A. Popovich
author_sort	Oleg S. Medvedev
title	Influence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization
title_short	Influence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization
title_full	Influence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization
title_fullStr	Influence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization
title_full_unstemmed	Influence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization
title_sort	influence of alloying elements on the mechanical properties of anodized aluminum and on the adhesion of copper metallization
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a2ea513d54d24821aa1af9fafaf434e1
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Influence of Alloying Elements on the Mechanical Properties of Anodized Aluminum and on the Adhesion of Copper Metallization

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