Formation of Al-Based Intermetallic Compound under Ion Implantation at Lower Temperature


Article Preview

The formation process of intermetallic compound under Ni+ion implantation into pure Al was studied at lower temperature below room temperature. Ion implantation was carried out using 250KeV ion accelerator. Cascade damage was introduced Ni+ions implantation at 223K without new phase nucleation. However, when Ni+ions were implanted at room temperature, the grown larger plate-like phases were observed during implantation up to 1x1017 Ni+/cm2. Ni concentration in Al matrix and newly formed phase were 0.3-0.5 and 8.5-13.3at%,respectively. It was identified that the formed phases were close to the ordered orthorhombic structure of Al3Ni type. It was also confirmed from observation with high resolution HVEM that these phases grew with continuous ion implantation. Thus it was clarified that cascades act as preferential nucleation site for intermetallic compound, and the phases nucleated at cascades coalesce in the growth process of each phase during continuous implantation through ion irradiation enhanced diffusion.



Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




H. Kinoshita et al., "Formation of Al-Based Intermetallic Compound under Ion Implantation at Lower Temperature ", Materials Science Forum, Vols. 561-565, pp. 1729-1732, 2007

Online since:

October 2007




[1] C. Pohla and P. L. Ryder: Acta. mater. 45, (1997), 2155.

[2] C. Pohla and P. L. Ryder: Materials Science and Engineering, A134(1991), 947.

[3] X.Z. Li and K.H. Kuo: Phil. Mag. Letters, 58(1988), 167.

[4] T.B. Massalski: Binary alloy phase diagrams : American Society for Metals, Metals Park, Ohio, (1986), Vol. 1.

[5] A. Yamamoto and H. Tsubakino: Scripta Mat. 37, (1997), 1721.

[6] H. Takahashi, H. Kinoshita and R. Gotthardt: ICEM-15 (2002), 987.

[7] S. Muto,D. Schryvers,N. Merk and L.E. Tanner: Acta metal mater. 41(1993), 2377.

[8] H. Kinoshita, H. Takahashi and R. Gotthardt: Materials Chemistry and Physics, 81(2003)424.

[9] H. Kinoshita, H. Takahashi and R. Gotthardt: Ann Chim Sci Mat, Suppl 1, (2002), S101.

[10] A. Cuenat: Doctor Thesis, (2000), EPFL, (2000), No. 2168, p.80.

Fetching data from Crossref.
This may take some time to load.