SEDL / STP / STP1001-EB / STP10130S

Preparation of Ultra High Purity Niobium for Monitoring Neutron Fluence

Nishizawa, K
TOSOH Corporation, Advanced Materials Research Laboratory, Hayakawa, Ayase-si, Kanagawa Prf.,

Sudo, H
TOSOH Corporation, Advanced Materials Research Laboratory, Hayakawa, Ayase-si, Kanagawa Prf.,

Akiyama, T
TOSOH Corporation, Advanced Materials Research Laboratory, Hayakawa, Ayase-si, Kanagawa Prf.,

Sugimori, M
TOSOH Corporation, Advanced Materials Research Laboratory, Hayakawa, Ayase-si, Kanagawa Prf.,

Pages: 8    Published: Jan 1989

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Abstract

TOSOH has developed a productive and unique producing process for high purity niobium with only several ppm tantalum and less than 1 ppm impurity metals. Our high purity Nb is produced by thermal decomposition of niobiumiodide (Nbl⁵). which especially includes the heat treatment process for removing Ta in Nb. These high purity metals can be fabricated in the form of sheet, wire, and globules for Nb.