Electron radiation damages to dicalcium (Ca2SiO4) and tricalcium (Ca3SiO5) orthosilicates

Marie Noëlle De Noirfontaine; Frédéric Dunstetter; Mireille Courtial; Marcel Signes-Frehel; Guillaume Wang; Dominique Gorse-Pomonti

doi:10.1016/j.nimb.2015.10.074

Electron radiation damages to dicalcium (Ca₂SiO₄) and tricalcium (Ca₃SiO₅) orthosilicates

Marie Noëlle De Noirfontaine
, Frédéric Dunstetter
, Mireille Courtial
, Marcel Signes-Frehel
, Guillaume Wang
, Dominique Gorse-Pomonti

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

Abstract

Electron radiation damages to dicalcium silicate (Ca₂SiO₄) and tricalcium silicate (Ca₃SiO₅) are reported for the first time in this paper. With increasing flux, between 2.7 × 10¹⁷ and 2.2 × 10²² e^- cm^-2 s^-1, decomposition into nanodomains of crystalline CaO plus an amorphous silica rich phase is first observed for both silicates, then amorphization at higher flux always for both silicates, and finally hole drilling but only for Ca₃SiO₅. These structural modifications are accompanied by a net reduction of Ca content under the electron beam depending on the silicate species. These radiation effects occur for values of flux and dose larger than in previously studied orthosilicates (like olivines), and much larger than in all tectosilicates.

Original language	English
Pages (from-to)	111-115
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	374
DOIs	https://doi.org/10.1016/j.nimb.2015.10.074
Publication status	Published - 1 May 2016
Externally published	Yes

Keywords

Ceramic oxides
Dicalcium silicate
Electron irradiation
Orthosilicates
Tricalcium silicate

Access to Document

10.1016/j.nimb.2015.10.074

Cite this

@article{c17fe541d90749ba8d3ee521a6105c62,

title = "Electron radiation damages to dicalcium (Ca2SiO4) and tricalcium (Ca3SiO5) orthosilicates",

abstract = "Electron radiation damages to dicalcium silicate (Ca2SiO4) and tricalcium silicate (Ca3SiO5) are reported for the first time in this paper. With increasing flux, between 2.7 × 1017 and 2.2 × 1022 e- cm-2 s-1, decomposition into nanodomains of crystalline CaO plus an amorphous silica rich phase is first observed for both silicates, then amorphization at higher flux always for both silicates, and finally hole drilling but only for Ca3SiO5. These structural modifications are accompanied by a net reduction of Ca content under the electron beam depending on the silicate species. These radiation effects occur for values of flux and dose larger than in previously studied orthosilicates (like olivines), and much larger than in all tectosilicates.",

keywords = "Ceramic oxides, Dicalcium silicate, Electron irradiation, Orthosilicates, Tricalcium silicate",

author = "\{De Noirfontaine\}, \{Marie No{\"e}lle\} and Fr{\'e}d{\'e}ric Dunstetter and Mireille Courtial and Marcel Signes-Frehel and Guillaume Wang and Dominique Gorse-Pomonti",

year = "2016",

month = may,

day = "1",

doi = "10.1016/j.nimb.2015.10.074",

language = "English",

volume = "374",

pages = "111--115",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

}

Electron radiation damages to dicalcium (Ca₂SiO₄) and tricalcium (Ca₃SiO₅) orthosilicates. / De Noirfontaine, Marie Noëlle ; Dunstetter, Frédéric; Courtial, Mireille et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 374, 01.05.2016, p. 111-115.

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

TY - JOUR

T1 - Electron radiation damages to dicalcium (Ca2SiO4) and tricalcium (Ca3SiO5) orthosilicates

AU - De Noirfontaine, Marie Noëlle

AU - Dunstetter, Frédéric

AU - Courtial, Mireille

AU - Signes-Frehel, Marcel

AU - Wang, Guillaume

AU - Gorse-Pomonti, Dominique

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Electron radiation damages to dicalcium silicate (Ca2SiO4) and tricalcium silicate (Ca3SiO5) are reported for the first time in this paper. With increasing flux, between 2.7 × 1017 and 2.2 × 1022 e- cm-2 s-1, decomposition into nanodomains of crystalline CaO plus an amorphous silica rich phase is first observed for both silicates, then amorphization at higher flux always for both silicates, and finally hole drilling but only for Ca3SiO5. These structural modifications are accompanied by a net reduction of Ca content under the electron beam depending on the silicate species. These radiation effects occur for values of flux and dose larger than in previously studied orthosilicates (like olivines), and much larger than in all tectosilicates.

AB - Electron radiation damages to dicalcium silicate (Ca2SiO4) and tricalcium silicate (Ca3SiO5) are reported for the first time in this paper. With increasing flux, between 2.7 × 1017 and 2.2 × 1022 e- cm-2 s-1, decomposition into nanodomains of crystalline CaO plus an amorphous silica rich phase is first observed for both silicates, then amorphization at higher flux always for both silicates, and finally hole drilling but only for Ca3SiO5. These structural modifications are accompanied by a net reduction of Ca content under the electron beam depending on the silicate species. These radiation effects occur for values of flux and dose larger than in previously studied orthosilicates (like olivines), and much larger than in all tectosilicates.

KW - Ceramic oxides

KW - Dicalcium silicate

KW - Electron irradiation

KW - Orthosilicates

KW - Tricalcium silicate

U2 - 10.1016/j.nimb.2015.10.074

DO - 10.1016/j.nimb.2015.10.074

M3 - Article

AN - SCOPUS:84964478088

SN - 0168-583X

VL - 374

SP - 111

EP - 115

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms