Ferroniobium Altae Puritatis In Promptu
NIOBIUM – Materia innovationum cum magno potentiali futuro
Niobium est metallum griseum pallidum, aspectu albo nitido in superficiebus politis. Notum est puncto liquefactionis alto, 2477°C, et densitate 8.58g/cm³. Niobium facile formari potest, etiam temperaturis humilibus. Niobium ductile est et cum tantalo in minerali naturali invenitur. Sicut tantalum, niobium etiam egregiam resistentiam chemicam et oxidationis praebet.
| compositio chemica%
| Nota | ||||
| FeNb70 | FeNb60-A | FeNb60-B | FeNb50-A | FeNb50-B | |
| Nb+Ta | |||||
| Septuaginta-LXXX | LX-LXX | LX-LXX | 50-60 | 50-60 | |
| Ta | 0.8 | 0.5 | 0.8 | 0.8 | 1.5 |
| Al | 3.8 | 2.0 | 2.0 | 2.0 | 2.0 |
| Si | 1.5 | 0.4 | 1.0 | 1.2 | 4.0 |
| C | 0.04 | 0.04 | 0.05 | 0.05 | 0.05 |
| S | 0.03 | 0.02 | 0.03 | 0.03 | 0.03 |
| P | 0.04 | 0.02 | 0.05 | 0.05 | 0.05 |
| W | 0.3 | 0.2 | 0.3 | 0.3 | - |
| Ti | 0.3 | 0.2 | 0.3 | 0.3 | - |
| Cu | 0.3 | 0.3 | 0.3 | 0.3 | - |
| Mn | 0.3 | 0.3 | 0.3 | 0.3 | - |
| As | 0.005 | 0.005 | 0.005 | 0.005 | - |
| Sn | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Sb | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Pb | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Bi | 0.002 | 0.002 | 0.002 | 0.002 | - |
Descriptio：
Ferroniobii principale elementum est ferri mixtura, ex niobio et ferro confecta. Etiam impuritates continet, ut aluminium, silicium, carbonium, sulfur, et phosphorus. Secundum niobii contentum mixturae, in FeNb50, FeNb60, et FeNb70 dividitur. Ferri mixtura, ex niobio-tantali minera producta, tantalum continet, quod ferrum niobii-tantali appellatur. Ferroniobii et niobii-niccoli mixturae ut additiva niobii in fusione vacuo mixturarum ferrearum et niccoli adhibentur. Requiritur ut parvum gasorum contentum et parvas impuritates noxias, ut Pb, Sb, Bi, Sn, As, etc., habeat. Si minus quam 2×10⁻⁵ sunt, "VQ" (qualitas vacui) appellatur, ut VQFeNb, VQNiNb, etc.
Applicatio：
Ferroniobium praecipue ad liquefaciendum mixturas altae temperaturae (calori resistentes), chalybem inoxidabilem et chalybem humilis mixturae altae firmitatis adhibetur. Niobium carburum niobii stabile cum carbone in chalybe inoxidabili et chalybe calori resistente format. Incrementum granorum alta temperatura impedire, structuram chalybis refinare, et firmitatem, tenacitatem et proprietates reptationis chalybis augere potest.
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