1976•Denki Kagaku oyobi Kogyo Butsuri KagakuOpen access

B-Nb2O5 Formation in Oxide Scale on Niobium with High Temperature Oxidation

Michio Yamawaki, Masayoshi KANNO, Takashi Mukaibo

Abstract

Astudyhasbeencarriedouttoclarifycondit三〇nsfohnducingtheT-to-BtransfomlationofNb205 in the scale on niobium and also to clarify the effect of the B-Nb205crystals on the oxidat二〇n kinetics of niobium by use of X-ray diffraction and metallographic techniques．．A preoxidation at aromd800℃ was found to induce the T-to-B Nb205transfo皿ation in the scale on an electropolished Nb specimen

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Key concepts: Niobium, Oxide, Niobium oxide, Materials science, Chemistry, Metallurgy