Microstructural change of Al on H implantation
- 1 March 1987
- journal article
- research article
- Published by Taylor & Francis in Radiation Effects
- Vol. 103 (1-4) , 119-133
- https://doi.org/10.1080/00337578708221246
Abstract
Modifications to the subsurface layer of Al on 25 keV H2 + ion implantation to fluences of 4 × 1017 to 2 × 1018 H+/cm2 at room temperature were investigated by transmission electron microscopy (TEM) and elastic recoil detection (ERD) with 1.5 MeV He+. Numerous bubbles ranging in diameter from 50 to 1000 Å were observed with a sharp peak at 120 Å irrespective of the ion fluence. Stereomicroscopic observations revealed the depth distribution of the bubbles. At fluences greater than 6 × 1017 H+/cm2, a lateral layer of lower density compared with matrix was observed and named “Swiss cheese structure” since its estimated structure is similar to Emmental cheese containing many holes. This Swiss cheese structure causes the formation of new layers on a free surface, and plays a precursor role for blistering. Hydrogen depth profiling with ERD was performed on every specimen revealing the collapse of the implanted hydrogen profile due to the formation of the Swiss cheese structure.Keywords
This publication has 15 references indexed in Scilit:
- Development of low-activation al alloys for D-T burning fusion device II. Fabrication and characterization of a large plateJournal of Nuclear Materials, 1985
- Depth resolution and recoil cross section for analyzing hydrogen in solids using elastic recoil detection with 4He beamNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1985
- ERD measurement of surface recombination coefficients of implanted hydrogen ionsJournal of Nuclear Materials, 1984
- Development of low activation Al alloys for D-T burning fusion deviceJournal of Nuclear Materials, 1984
- Exchange of injected hydrogen isotopes between diffusing and trapped states in AlRadiation Effects, 1984
- He trapping and bubble formation in Ni, stainless steel 316 and amorphous alloysNuclear Instruments and Methods, 1981
- Microstructure of Ni and stainless steel after multiple energy He and D implantationJournal of Nuclear Materials, 1980
- Evidence that helium irradiation blisters contain high-pressure gasJournal of Applied Physics, 1980
- Equation of state of fluid n–H2 from P–V–T and sound velocity measurements to 20 kbarThe Journal of Chemical Physics, 1977
- Formation of blisters in molybdenum bombarded with heliumNature, 1975