ʻO Ferro Niobium Maʻemaʻe Kiʻekiʻe i loko o ka waihona
NIOBIUM - He mea no nā hana hou me ka hiki ke hiki mai i ka wā e hiki mai ana
He metala hina māmā ka Niobium me kahi hiʻohiʻona keʻokeʻo ʻālohilohi ma nā ʻili i hoʻopili ʻia. Hōʻike ʻia ia e kahi kiko heheʻe kiʻekiʻe o 2,477°C a me ka nui o 8.58g/cm³. Hiki ke hoʻokumu maʻalahi ʻia ka Niobium, ʻoiai ma nā mahana haʻahaʻa. He ductile ka Niobium a loaʻa pū me ka tantalum i loko o kahi ore kūlohelohe. E like me ka tantalum, hōʻike pū ka niobium i ke kūpaʻa kemika a me ka oxidation maikaʻi loa.
| ka hoʻohuihui kemika%
| Lama | ||||
| FeNb70 | FeNb60-A | FeNb60-B | FeNb50-A | FeNb50-B | |
| Nb+Ta | |||||
| 70-80 | 60-70 | 60-70 | 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 | - |
Wehewehena：
ʻO ka ʻāpana nui o ka ferroniobium he hao hao o ka niobium a me ka hao. Loaʻa pū kekahi i nā mea haumia e like me ka alumini, silicon, carbon, sulfur, a me ka phosphorus. Wahi a ka nui o ka niobium o ka hao hao, ua māhele ʻia i FeNb50, FeNb60 a me FeNb70. ʻO ka hao hao i hana ʻia me ka niobium-tantalum ore aia ka tantalum, i kapa ʻia ʻo niobium-tantalum iron. Hoʻohana ʻia nā hao hao Ferro-niobium a me niobium-nickel ma ke ʻano he niobium additives i ka hoʻoheheʻe ʻana i nā hao hao a me nā nickel. Pono ia e loaʻa ka nui o ke kinoea haʻahaʻa a me nā mea haumia ʻino haʻahaʻa, e like me Pb, Sb, Bi, Sn, As, etc. <2 × 10, no laila ua kapa ʻia ʻo "VQ" (ʻano vacuum), e like me VQFeNb, VQNiNb, etc.
Noi：
Hoʻohana nui ʻia ʻo Ferroniobium no ka hoʻoheheʻe ʻana i ke kila kila kiʻekiʻe (pale wela), ke kila kila kila a me ke kila kila kila haʻahaʻa ikaika kiʻekiʻe. Hoʻokumu ʻo Niobium i ka niobium carbide paʻa me ke kalapona i loko o ke kila kila kila a me ke kila pale wela. Hiki iā ia ke pale i ka ulu ʻana o ka palaoa i ka mahana kiʻekiʻe, hoʻomaʻemaʻe i ke ʻano o ke kila, a hoʻomaikaʻi i ka ikaika, ka paʻakikī a me nā waiwai kolo o ke kila.
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