Title: Helium irradiation of Y2O3-Fe bilayer system

Journal Article · · Scripta Materialia
 [1];  [2];  [3];  [4]
  1. Univ. of Wisconsin-Madison, Madison, WI (United States); Applied Materials Inc., Sunnyvale, CA (United States)
  2. Univ. of California, Berkeley, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of California, Berkeley, CA (United States)
  4. Univ. of Wisconsin-Madison, Madison, WI (United States)

Here, Y2O3/Fe bilayer systems and associated interfaces with different crystallographic orientations were implanted with helium. High resolution scanning transmission electron microscopy (HRSTEM) analysis showed that implanted helium formed larger sized bubbles at the interface than within the individual film layers. The bubbles at the interface were located on the oxide side of the interface and only “wetted” a small area of the interface. In contrast, bubbles nucleating at grain boundaries within the iron layer were observed to symmetrically form across the grain boundaries, suggesting remarkable differences in helium bubble nucleation between metal/oxide interfaces and grain boundaries in metals.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
89233218CNA000001; AC02-05CH11231
OSTI ID:
1482959
Report Number(s):
LA-UR--18-29858
Journal Information:
Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: C Vol. 162; ISSN 1359-6462
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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