Papa Niobium
inoa huahana: Niobium plate(
Kaumaha: RO4200-1RO4210-2(
Kūlana hoʻokō: GB/T14842-2007(
ASTM B392-98(
Mea noi: niobium alloy series
Ka inoa o ka huahana: Niobium plate
Kaumaha: RO4200-1RO4210-2
Kūlana hoʻokō: GB / T14842-2007
ASTM B392-98
Mea noi: niobium alloy series
Niobium he mea kemika. ʻO ka hōʻailona kemika Nb, ka helu atomika 41, ke kaumaha ʻātoma 92.90638, no ka hui VB o ka ʻōnaehana manawa. I ka makahiki 1801, ua hoʻokaʻawale ʻo British C. Hatchett i kahi mea ʻokikene hou mai ka hao hao a kapa ʻia ʻo ia ka mea ʻo columbium (inoa unuhi Pākē). He metala hina hina keʻokeʻo me ka helu heheʻe o 2468°C, kahi paila o 4742°C, a me ka mānoanoa o 8.57 g/cubic centimeter. ʻO Nickel kahi metala hina ʻālohilohi i paramagnetic a pili i ka Pūʻulu 5 o ka papaʻaina o nā mea. ʻO ka metala kala maʻemaʻe kiʻekiʻe ka ductility kiʻekiʻe akā e hoʻopiʻi i ka ʻāpana neutron wela i ka wā e piʻi ai ka maʻiʻo haumia. He haʻahaʻa loa ko CcRA, no laila, hoʻohana nui ʻia i ka ʻoihana nuklea.
hoʻohana
Hoʻohana nui ʻia e like me nā mea hoʻohui no ka hana ʻana i nā paʻi paʻi, keleawe (i ʻike ʻia ʻo navy copper, DZR copper rods no condensers, a me ke keleawe. Hiki iā ia ke pale i ka dezincification inā loaʻa i ke keleawe ka nui o ka arsenic.
