Published 1988 | Version v1
Book Metadata-only

Growth mechanism of Cr/sub 2/O/sub 3/ scales on Cr and Cr implanted with Y

Creators

  • 1. H. H. Uhlig Corrosion Lab., MIT, Cambridge, MA (USA)

Description

The influence of implanted Y on the mechanism of growth of Cr/sub 2/O/sub 3/ on pure Cr has been determined experimentally. Specimens of pure Cr and Cr implanted with 2x10/sup 16/ Y ions/cm/sup 2/ were oxidized sequentially in /sup 16/O/sub 2/ and /sup 18/O/sub 2/ at 9000C after which SIMS sputter-depth profiles for various polyatomic species were measured. Implantation with Y caused a change in the mechanism of growth of Cr/sub 2/O/sub 3/ from cation to predominantly anion diffusion. The latter change is associated with segregation of Y ions to oxide grain boundaries, which influences the relative grain boundary fluxes of cations and anions

Additional details

Publishing Information

Publisher
The Electrochemical Society.
Imprint Place
Pennington, NJ (USA)
Imprint Title
High temperature materials chemistry - IV. Volume 88-5
Journal Page Range
p. 268-277.

Conference

Title
4. symposium on high-temperature materials chemistry.
Dates
18-23 Oct 1987.
Place
Honolulu, HI (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20048184
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHROMIUM; CHROMIUM OXIDES; CRYSTAL GROWTH; CRYSTALLOGRAPHY; FABRICATION; GRAIN BOUNDARIES; ION IMPLANTATION; ION MICROPROBE ANALYSIS; MASS SPECTROSCOPY; OXIDATION; OXYGEN 16; OXYGEN 18; SCALING; THERMAL DIFFUSION; VERY HIGH TEMPERATURE; YTTRIUM
Descriptors DEC
CHALCOGENIDES; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; CHROMIUM COMPOUNDS; CORROSION; CRYSTAL STRUCTURE; DIFFUSION; ELEMENTS; EVEN-EVEN NUCLEI; ISOTOPES; LIGHT NUCLEI; METALS; MICROANALYSIS; MICROSTRUCTURE; NONDESTRUCTIVE ANALYSIS; NUCLEI; OXIDES; OXYGEN COMPOUNDS; OXYGEN ISOTOPES; SPECTROSCOPY; STABLE ISOTOPES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS