Fabrication and characteristics of highly [Formula: see text] -oriented nanotwinned Au films

Fine grained and nanotwinned Au has many excellent properties and is widely used in electronic devices. We have fabricated [Formula: see text] preferred-oriented Au thin films by DC plating at 5 mA/cm(2). Microstructure analysis of the films show a unique fine grain structure with a twin formation....

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Detalles Bibliográficos
Autores principales: Chiu, Wei-Lan, Liu, Chien-Min, Lin, Han-wen, Wu, John A., Chou, Y.-C., Tu, K. N., Chen, Chih
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7538934/
https://www.ncbi.nlm.nih.gov/pubmed/33024166
http://dx.doi.org/10.1038/s41598-020-73133-w
Descripción
Sumario:Fine grained and nanotwinned Au has many excellent properties and is widely used in electronic devices. We have fabricated [Formula: see text] preferred-oriented Au thin films by DC plating at 5 mA/cm(2). Microstructure analysis of the films show a unique fine grain structure with a twin formation. Hardness tests performed on electroplated [Formula: see text] Au films show a hardness 47% greater than random and untwinned Au. We then achieved direct bonding between two Au [Formula: see text] surfaces operating at 200 °C for an hour in a vacuum oven. The highly-oriented [Formula: see text] nanotwinned Au films could be an ideal material in many gold products.

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