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Thermal Stability of Metastable Phases Produced by Laser Treatment of Aluminium Implanted With Chromium and Molybdenum

Published online by Cambridge University Press:  15 February 2011

G. Battaglin ,
A. Carnera ,
G. Della Mea ,
P. Mazzoldi ,
Animesh K. Jain ,
V.N. Kulkarni  and
D.K. Sood
G. Battaglin
Affiliation:
Unità Gnsm-Cnr, Istituto di Fisica, Università& di Padova, Italy
A. Carnera
Affiliation:
Unità Gnsm-Cnr, Istituto di Fisica, Università& di Padova, Italy
G. Della Mea
Affiliation:
Unità Gnsm-Cnr, Istituto di Fisica, Università& di Padova, Italy
P. Mazzoldi
Affiliation:
Unità Gnsm-Cnr, Istituto di Fisica, Università& di Padova, Italy
Animesh K. Jain
Affiliation:
Nuclear Physics Division, Bhabha Atomic Research Centre, Bombay–400 085, India
V.N. Kulkarni
Affiliation:
Nuclear Physics Division, Bhabha Atomic Research Centre, Bombay–400 085, India
D.K. Sood
Affiliation:
Nuclear Physics Division, Bhabha Atomic Research Centre, Bombay–400 085, India
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Abstract

We present a first He ion channeling study on thermal stability (under isochronal vacuum furnace annealing at 300-650°C) of metastable solid solution phases produced by pulsed ruby laser treatment of Al implanted with Cr and Mo. Laser treated Cr exhibits strong redistribution inferred to be due to intermetallic phase precipitation which appears to be enhanced by quenched-in defects. In contrast, laser treated Mo shows no redistribution but only a loss of substitutionality. Instead of annealing, thermal treatment produces an increase in host dechanneling yield for all laser treated samples. Detailed comparison with thermal recovery of as implanted phases demonstrates the key role played by quenched-in defects.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 7 , 1981 , 327
Copyright
Copyright © Materials Research Society 1982

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References

REFERENCES

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