مورد إلكتروني
Combinatorial design of amorphous TaNiSiC thin films with enhanced hardness, thermal stability, and corrosion resistance
| العنوان: | Combinatorial design of amorphous TaNiSiC thin films with enhanced hardness, thermal stability, and corrosion resistance |
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| بيانات النشر: | Uppsala universitet, Materialfysik Uppsala universitet, Oorganisk kemi 2022 |
| تفاصيل مُضافة: | Kaplan, Maciej Srinath, Aishwarya Riekehr, Lars Nyholm, Leif Hjörvarsson, Björgvin Fritze, Stefan |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Amorphous TaNiSiC and TaNiC films (with varying Ta/Ni and Si/C ratios) were deposited using combinatorial magnetron sputtering. The TaNiSiC films remained X-ray amorphous after four hour-long annealings up to 700 °C, while TaNiC alloys with high Ni and C contents crystallized. These differences were attributed to a strong driving force for separation of Ni and C in TaNiC, whereas the addition of Si, due to its solubility in the other elements, reduced the elemental segregation in TaNiSiC. The as-deposited TaNiSiC films exhibited hardnesses of 9–12 GPa. Annealing led to an increase in hardness by 2–4 GPa, due to decreases in average atomic distance, as evidenced by X-ray diffraction measurements. Potentiodynamic polarizations from –0.7 to +1.5 V vs. Ag/AgCl (3 M NaCl) in 10 mM sodium borate showed lower current densities by up to 2 orders of magnitude with increasing Ta content (28–52 at.%). Changes in Si/C content (7–13 at.% Si) had no effect. However, optical microscopy showed that TaNiSiC films with high Si/low C contents (13/10 at.%) suffered much less localized etching compared to TaNiC films. Thus, Si had a significant role in increasing the mechanical strength, corrosion resistance, and thermal stability of the TaNiSiC films. |
| مصطلحات الفهرس: | Metal lic glasses, thermal stability, mechanical properties, corrosion resis- tance, Materials Chemistry, Materialkemi, Condensed Matter Physics, Den kondenserade materiens fysik, Article in journal, info:eu-repo/semantics/article, text |
| DOI: | 10.1016.j.matdes.2022.110827 |
| URL: | Materials & design, 0264-1275, 2022, 220 |
| الإتاحة: | Open access content. Open access content info:eu-repo/semantics/openAccess |
| ملاحظة: | application/pdf English |
| أرقام أخرى: | UPE oai:DiVA.org:uu-468121 0000-0001-7367-1196 0000-0002-1649-8240 0000-0003-1874-932x 0000-0001-9292-016X 0000-0003-1803-9467 0000-0002-8082-1671 doi:10.1016/j.matdes.2022.110827 ISI:000826404700006 1349052946 |
| المصدر المساهم: | UPPSALA UNIV LIBR From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1349052946 |
| قاعدة البيانات: | OAIster |
| DOI: | 10.1016.j.matdes.2022.110827 |
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