Determination of grain boundary geometry using TEM

H. Jang

doi:10.1557/JMR.1992.1707

Determination of grain boundary geometry using TEM

H. Jang

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

An experimental method to obtain the grain boundary geometry using the transmission electron microscope is presented. The method allows E determination including grain boundary plane orientation. In order to determine the specialness of the grain boundary, three different criteria for maximum allowable deviations from exact CSL misorientations were examined. We tested these three criteria from a statistical distribution of grain boundary types in terms of Σ. We compared grain boundary distributions from other studies in Ni₃Al and found discrepancies among them. It seems that the discrepancy came from the different criteria for special boundaries in Σ determination and different experimental procedures they used. The statistical distribution of grain boundary plane orientations showed that low Σ boundaries (Σ < 11) were oriented to the plane of high density of coincident sites.

Original language	English
Pages (from-to)	1707-1717
Number of pages	11
Journal	Journal of Materials Research
Volume	7
Issue number	7
DOIs	https://doi.org/10.1557/JMR.1992.1707
Publication status	Published - 1992 Jul
Externally published	Yes

Bibliographical note

Funding Information:
This work was partly supported by the Department of Energy, Energy Conversion and Utilization Technologies (ECUT) program under Subcontract No. 19X-89768V with Martin Marietta Energy Systems Inc. and was monitored by Oak Ridge National Laboratories.

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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abstract = "An experimental method to obtain the grain boundary geometry using the transmission electron microscope is presented. The method allows E determination including grain boundary plane orientation. In order to determine the specialness of the grain boundary, three different criteria for maximum allowable deviations from exact CSL misorientations were examined. We tested these three criteria from a statistical distribution of grain boundary types in terms of Σ. We compared grain boundary distributions from other studies in Ni3Al and found discrepancies among them. It seems that the discrepancy came from the different criteria for special boundaries in Σ determination and different experimental procedures they used. The statistical distribution of grain boundary plane orientations showed that low Σ boundaries (Σ < 11) were oriented to the plane of high density of coincident sites.",

author = "H. Jang",

note = "Funding Information: This work was partly supported by the Department of Energy, Energy Conversion and Utilization Technologies (ECUT) program under Subcontract No. 19X-89768V with Martin Marietta Energy Systems Inc. and was monitored by Oak Ridge National Laboratories.",

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N2 - An experimental method to obtain the grain boundary geometry using the transmission electron microscope is presented. The method allows E determination including grain boundary plane orientation. In order to determine the specialness of the grain boundary, three different criteria for maximum allowable deviations from exact CSL misorientations were examined. We tested these three criteria from a statistical distribution of grain boundary types in terms of Σ. We compared grain boundary distributions from other studies in Ni3Al and found discrepancies among them. It seems that the discrepancy came from the different criteria for special boundaries in Σ determination and different experimental procedures they used. The statistical distribution of grain boundary plane orientations showed that low Σ boundaries (Σ < 11) were oriented to the plane of high density of coincident sites.

AB - An experimental method to obtain the grain boundary geometry using the transmission electron microscope is presented. The method allows E determination including grain boundary plane orientation. In order to determine the specialness of the grain boundary, three different criteria for maximum allowable deviations from exact CSL misorientations were examined. We tested these three criteria from a statistical distribution of grain boundary types in terms of Σ. We compared grain boundary distributions from other studies in Ni3Al and found discrepancies among them. It seems that the discrepancy came from the different criteria for special boundaries in Σ determination and different experimental procedures they used. The statistical distribution of grain boundary plane orientations showed that low Σ boundaries (Σ < 11) were oriented to the plane of high density of coincident sites.

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Determination of grain boundary geometry using TEM

Abstract

Bibliographical note

ASJC Scopus subject areas

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