Quantitative HREM study of the atomic structure of the {summation}(310)/[001] symmetric tilt grain boundary in Nb
Conference
·
OSTI ID:10157753
We have used a non-linear least squares optimization method to deduce a model for the atomic structure of the {Sigma}(310)/[001] symmetric tilt grain boundary in Nb from high resolution electron micrographs (HREM) of a bicrystal prepared by diffusion bonding. The resultant model is similar to, but differs in detail from a theoretical prediction based on interatomic potentials which included angular forces thought to be important in the prediction of defect structures in body centered cubic metals. Results validate this approach as a step towards making HREM quantitative technique.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10157753
- Report Number(s):
- UCRL-JC-111304; CONF-921101-121; ON: DE93013834
- Resource Relation:
- Conference: 16. Materials Research Society (MRS) fall meeting,Boston, MA (United States),30 Nov - 5 Dec 1992; Other Information: PBD: Nov 1992
- Country of Publication:
- United States
- Language:
- English
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