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Alaabta

Niobium
Marxaladda STP adag
barta dhalaalaysa 2750 K (2477 °C, 4491 °F)
Barta karkarinta 5017 K (4744 °C, 8571 °F)
Cufnaanta (rt u dhow) 8.57 g/cm3
Kulaylka fiyuuska 30 kJ/mol
Kulaylka uumiga 689.9 kJ/mol
Awoodda kulaylka molar 24.60 J/ (mol·K)
Muuqashada macdan cawl, buluug ah marka oksidized
  • Niobium Powder

    Niobium Powder

    Niobium Powder (CAS No. 7440-03-1) waa cawl khafiif ah oo leh bar dhalaalaysa sare iyo ka-hortagga daxalka. Waxay qaadanaysaa midab buluug ah marka ay soo gaadho hawada heerkulka qolka muddo dheer. Niobium waa bir naadir ah, jilicsan, la dareemi karo, ductile, bir cawl-cad ah. Waxa ay leedahay qaab dhismeed crystalline cubic ah oo jidhka udub dhexaad u ah, muuqaalkeeda jidheed iyo kiimikaadna waxa ay u egtahay tantalum. oksaydhka birta ee hawadu waxay ka bilaabataa 200°C. Niobium, marka loo isticmaalo alloying, hagaajinaysaa xoogga. Waxyaalaheeda sare-sare ayaa la wanaajiyey marka lagu daro zirconium. Budada Niobium micron waxay isu heleysaa codsiyo kala duwan sida elektarooniga, samaynta alloy-ka, iyo caafimaadka sababtoo ah kiimikaad, korantada, iyo qalabka farsamada ee la jecel yahay.