Kinetics of dispersion during annealing in vacuum of thin double nickel-silver films deposited onto oxide materials
| Autor: | I. I. Gab, T. V. Stetsyuk, B. D. Kostyuk, D. B. Shakhnin |
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| Jazyk: | English<br />Ukrainian |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Фізика і хімія твердого тіла, Vol 20, Iss 2, Pp 175-180 (2019) |
| Druh dokumentu: | article |
| ISSN: | 1729-4428 2309-8589 |
| DOI: | 10.15330/pcss.20.2.175-180 |
| Popis: | The kinetics of dispersion of thin nickel-silver films deposited onto alumina and zirconia ceramics and annealed in vacuum at temperatures up to 1000 °C with different exposition times at each temperature (from 5 up to 20 min) was studied. The double films consisted of two layers: the first metallization layer was 150 nm nickel nanofilm deposited onto the oxide surface, and the second silver layer 1,5 mm thick deposited over the first one as a solder was used for joining of metallized oxide samples. It was found that these films remain rather dense during short-term heating up to 900 °C; and, after annealing at 950 °C and 1000 °C, they decompose immediately into individual droplets covering more than half the area of the ceramic substrates. The kinetic curves for the dispersion of these films were plotted. |
| Databáze: | Directory of Open Access Journals |
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