skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Temperature-Dependent Helium Ion-Beam Mixing in an Amorphous SiOC/Crystalline Fe Composite

Abstract

Temperature dependent He-irradiation-induced ion-beam mixing between amorphous silicon oxycarbide (SiOC) and crystalline Fe was examined with a transmission electron microscope (TEM) and via Rutherford backscattering spectrometry (RBS). The Fe marker layer (7.2 ± 0.8 nm) was placed in between two amorphous SiOC layers (200 nm). The amount of ion-beam mixing after 298, 473, 673, 873, and 1073 K irradiation was investigated. Both TEM and RBS results showed no ion-beam mixing between Fe and SiOC after 473 and 673 K irradiation and a very trivial amount of ion-beam mixing (~2 nm) after 298 K irradiation. At irradiation temperatures higher than 873 K, the Fe marker layer broke down and RBS could no longer be used to quantitatively examine the amount of ion mixing. The results indicate that the Fe/SiOC nanocomposite is thermally stable and tends to demix in the temperature range from 473 to 673 K. For application of this composite structure at temperatures of 873 K or higher, layer stability is a key consideration.

Authors:
ORCiD logo [1];  [2];  [2];  [1]
  1. Univ. of Nebraska, Lincoln, NE (United States)
  2. Texas A & M Univ., College Station, TX (United States)
Publication Date:
Research Org.:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1426231
Grant/Contract Number:  
NE0000533
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Metals
Additional Journal Information:
Journal Volume: 6; Journal Issue: 12; Journal ID: ISSN 2075-4701
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; radiation tolerant materials; amorphous SiOC; nanocrystalline Fe; amorphous/crystalline interface

Citation Formats

Su, Qing, Price, Lloyd, Shao, Lin, and Nastasi, Michael. Temperature-Dependent Helium Ion-Beam Mixing in an Amorphous SiOC/Crystalline Fe Composite. United States: N. p., 2016. Web. doi:10.3390/met6110261.
Su, Qing, Price, Lloyd, Shao, Lin, & Nastasi, Michael. Temperature-Dependent Helium Ion-Beam Mixing in an Amorphous SiOC/Crystalline Fe Composite. United States. doi:10.3390/met6110261.
Su, Qing, Price, Lloyd, Shao, Lin, and Nastasi, Michael. Mon . "Temperature-Dependent Helium Ion-Beam Mixing in an Amorphous SiOC/Crystalline Fe Composite". United States. doi:10.3390/met6110261. https://www.osti.gov/servlets/purl/1426231.
@article{osti_1426231,
title = {Temperature-Dependent Helium Ion-Beam Mixing in an Amorphous SiOC/Crystalline Fe Composite},
author = {Su, Qing and Price, Lloyd and Shao, Lin and Nastasi, Michael},
abstractNote = {Temperature dependent He-irradiation-induced ion-beam mixing between amorphous silicon oxycarbide (SiOC) and crystalline Fe was examined with a transmission electron microscope (TEM) and via Rutherford backscattering spectrometry (RBS). The Fe marker layer (7.2 ± 0.8 nm) was placed in between two amorphous SiOC layers (200 nm). The amount of ion-beam mixing after 298, 473, 673, 873, and 1073 K irradiation was investigated. Both TEM and RBS results showed no ion-beam mixing between Fe and SiOC after 473 and 673 K irradiation and a very trivial amount of ion-beam mixing (~2 nm) after 298 K irradiation. At irradiation temperatures higher than 873 K, the Fe marker layer broke down and RBS could no longer be used to quantitatively examine the amount of ion mixing. The results indicate that the Fe/SiOC nanocomposite is thermally stable and tends to demix in the temperature range from 473 to 673 K. For application of this composite structure at temperatures of 873 K or higher, layer stability is a key consideration.},
doi = {10.3390/met6110261},
journal = {Metals},
issn = {2075-4701},
number = 12,
volume = 6,
place = {United States},
year = {2016},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share: