Published November 1994 | Version v1
Report Open

Diffusion of Ti in α-Zr single crystals

Creators

  • 1. Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Nuclear Labs.
  • 2. Kimberly, BC (Canada)
  • 3. Canada Centre for Mineral and Energy Technology, Ottawa, ON (Canada)

Description

Ti diffusion coefficients (D) have been measured in nominally pure αZr single crystals (773-1124 K) in directions both parallel (Dpa) and perpendicular (Dpe, few data) to the c-axis: tracer techniques and secondary ion mass spectrometry were used to determine the diffusion profiles. The results show a temperature dependence which suggests two regions of diffusion behaviour. Above 1035 K, region I, diffusion conforms to the expectations of intrinsic behaviour with normal Arrhenius law constants: Dpa = 1.7 x 10-3 exp(-2.93 ± 0.08 eV/kΤ) m2/s. Below 1035 K, region II, D's are enhanced with respect to an extrapolation of region I behaviour. The region II data are associated with extrinsic effects. (author). 13 refs., 1 tab., 3 figs

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
9 p.
Report number
AECL--11212

INIS

Country of Publication
Canada
Country of Input or Organization
Canada
INIS RN
27004411
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ARRHENIUS EQUATION; DIFFUSION; MASS SPECTROSCOPY; MASS TRANSFER; MONOCRYSTALS; TEMPERATURE DEPENDENCE; TITANIUM; TRACER TECHNIQUES; ZIRCONIUM
Descriptors DEC
CRYSTALS; ELEMENTS; ISOTOPE APPLICATIONS; METALS; SPECTROSCOPY; TRANSITION ELEMENTS

Optional Information

Secondary number(s)
COG--94-545.