Published September 2001 | Version v1
Journal article Metadata-only

Activation and passivation of zirconium by electrochemical treatment in aqueous and non-aqueous chloride solutions

Creators

  • 1. Rossijskij Khimiko-Tekhnologicheskij Univ. im. D.I. Mendeleeva, Moscow (Russian Federation)

Description

Factors affecting activation and passivation of zirconium in aqueous, alcohol and formamide solutions of chlorides were studied by the method of recording the polarization curves to determine optimal conditions and media for electrochemical treatment of zirconium. Mechanism of anodic dissolution of zirconium in the media and the role of intermediate valency particles in the process are considered. The results obtained permitted suggesting and validating aqueous chloride-nitrate electrolyte for electrochemical dimensional machining of zirconium and chloride electrolyte on formamide basis for electrochemical polishing of zirconium

Abstract (Russian)

Методом регистрации поляризационных кривых изучены факторы, влияющие на активацию и пассивацию циркония в водных, спиртовых и формамидных растворах хлоридов, с целью определения оптимальных условий и сред для проведения электрохимической обработки циркония. Рассмотрен механизм анодного растворения циркония в таких средах и роль частиц промежуточной валентности в этом процессе. На основе полученных результатов предложен и успешно опробован водный хлоридно-нитратный электролит для размерной электрохимической обработки циркония и хлоридный электролит на основе формамида для электрохимического полирования циркония

Additional details

Additional titles

Original title (Russian)
Активация и пассивация при электрохимической обработке циркония в водных и неводных растворах хлоридов

Publishing Information

Journal Title
Ehlektrokhimiya
Journal Volume
37
Journal Issue
9
Journal Page Range
p. 1049-1956
ISSN
0424-8570
CODEN
ELKKAX

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
33060225
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ALCOHOLS; AQUEOUS SOLUTIONS; CHEMICAL REACTION KINETICS; CHLORIDES; DISSOLUTION; ELECTROCHEMICAL MACHINING; ELECTROCHEMISTRY; ELECTROLYSIS; ELECTROLYTES; ELECTROPOLISHING; FORMAMIDE; NITRATES; REACTION INTERMEDIATES; ZIRCONIUM
Descriptors DEC
AMIDES; CHEMICAL MACHINING; CHEMISTRY; CHLORINE COMPOUNDS; DISPERSIONS; ELECTROLYSIS; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROXY COMPOUNDS; KINETICS; LYSIS; MACHINING; METALS; MIXTURES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; POLISHING; REACTION KINETICS; SOLUTIONS; SURFACE FINISHING; TRANSITION ELEMENTS

Optional Information

Notes
22 refs., 8 figs.