On the Electrodeposition and Characterization of Niobium from Fused Fluoride Electrolytes.
Abstract
The electrodeposition of niobium from a binary electrolyte consisting of KF and NaF was characterized and compared with the ternary electrolyte of LiF, NaF, and KF. The deposition experiments were conducted at current densities between 5 and 35 mA/cm to the 2nd power and electrolyte temperatures between 725 and 800 C. DTZ measurements indicated the melting points to be 450 and 710 C for the ternary and binary electrolytes with added K2NbF7; however, it was necessary to operate both electrolytes above 725 C to obtain dense coherent deposits. Coating morphology was described by optical and scanning electron microscopy (SEM) morphology, while coating structure and properties were characterized by x-ray diffraction analysis. In particular, a series of diffraction measurements were reported to describe the changes in the microstructure of the deposited material as a function of the preparation conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1986
- Accession Number
- ADA166668
Entities
People
- E. S. Chen
- G. P. Capsimalis
- I. Ahmad
- R. E. Peterson
Organizations
- United States Army Armament Research, Development and Engineering Center