Structural transformation and chemical reduction of Pr24O44 induced by the electron beam during microscopical examination

E. Schweda; L. Eyring; David Smith

doi:10.1016/0304-3991(87)90255-5

Structural transformation and chemical reduction of Pr₂₄O₄₄ induced by the electron beam during microscopical examination

E. Schweda, L. Eyring, David Smith

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Abstract

The effects of electron beam irradiation on Pr₂₄O₄₄ were followed at high resolution in a JEM-4000EX electron microscope. Two categories of electron beam effects are reported. In one image sequence, the orientational transformation of Pr₂₄O₄₄ from the [100] to the [313] direction was observed to occur. In another sequence, reduction of Pr₂₄O₄₄ to Pr₄₀O₇₂ resulted from intense beam irradiation. Electron diffraction patterns showed the further reduction of the specimen to Pr₇O₁₂ and finally to Pr₂O₃.

Original language	English (US)
Pages (from-to)	443-451
Number of pages	9
Journal	Ultramicroscopy
Volume	23
Issue number	3-4
DOIs	https://doi.org/10.1016/0304-3991(87)90255-5
State	Published - 1987

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Instrumentation

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@article{865cbeb1f7d748fd8509f6cc7d837f95,

title = "Structural transformation and chemical reduction of Pr24O44 induced by the electron beam during microscopical examination",

abstract = "The effects of electron beam irradiation on Pr24O44 were followed at high resolution in a JEM-4000EX electron microscope. Two categories of electron beam effects are reported. In one image sequence, the orientational transformation of Pr24O44 from the [100] to the [313] direction was observed to occur. In another sequence, reduction of Pr24O44 to Pr40O72 resulted from intense beam irradiation. Electron diffraction patterns showed the further reduction of the specimen to Pr7O12 and finally to Pr2O3.",

author = "E. Schweda and L. Eyring and David Smith",

note = "Funding Information: This work was supported by NSF Grant DMR-8516381 and used the facilities of the National Center for High Resolution Electron Microscopy within the Center for Solid State Science at Arizona State University, supported by NSF Grant DMR-8306501.",

year = "1987",

doi = "10.1016/0304-3991(87)90255-5",

language = "English (US)",

volume = "23",

pages = "443--451",

journal = "Ultramicroscopy",

issn = "0304-3991",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Structural transformation and chemical reduction of Pr24O44 induced by the electron beam during microscopical examination

AU - Schweda, E.

AU - Eyring, L.

AU - Smith, David

N1 - Funding Information: This work was supported by NSF Grant DMR-8516381 and used the facilities of the National Center for High Resolution Electron Microscopy within the Center for Solid State Science at Arizona State University, supported by NSF Grant DMR-8306501.

PY - 1987

Y1 - 1987

N2 - The effects of electron beam irradiation on Pr24O44 were followed at high resolution in a JEM-4000EX electron microscope. Two categories of electron beam effects are reported. In one image sequence, the orientational transformation of Pr24O44 from the [100] to the [313] direction was observed to occur. In another sequence, reduction of Pr24O44 to Pr40O72 resulted from intense beam irradiation. Electron diffraction patterns showed the further reduction of the specimen to Pr7O12 and finally to Pr2O3.

AB - The effects of electron beam irradiation on Pr24O44 were followed at high resolution in a JEM-4000EX electron microscope. Two categories of electron beam effects are reported. In one image sequence, the orientational transformation of Pr24O44 from the [100] to the [313] direction was observed to occur. In another sequence, reduction of Pr24O44 to Pr40O72 resulted from intense beam irradiation. Electron diffraction patterns showed the further reduction of the specimen to Pr7O12 and finally to Pr2O3.

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U2 - 10.1016/0304-3991(87)90255-5

DO - 10.1016/0304-3991(87)90255-5

M3 - Article

AN - SCOPUS:0023586153

SN - 0304-3991

VL - 23

SP - 443

EP - 451

JO - Ultramicroscopy

JF - Ultramicroscopy

IS - 3-4

ER -

Structural transformation and chemical reduction of Pr₂₄O₄₄ induced by the electron beam during microscopical examination

Abstract

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