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Effect of Heavy Mass Ion (Gold) and Light Mass Ion (Boron) Irradiation on Microstructure of Tungsten

Published online by Cambridge University Press:  28 May 2019

Prashant Sharma ,
Padivattathumana Maya ,
Satyaprasad Akkireddy ,
Prakash M. Raole ,
Anil K. Tyagi ,
Asha Attri ,
Pawan K. Kulriya ,
Parmendra K. Bajpai ,
Sudhir Mishra  and
Shiv P. Patel
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Prashant Sharma*
Affiliation:
ITER-India, Institute for Plasma Research, Bhat, Gandhinagar 382428, India
Padivattathumana Maya
Affiliation:
ITER-India, Institute for Plasma Research, Bhat, Gandhinagar 382428, India
Satyaprasad Akkireddy
Affiliation:
Institute for Plasma Research, Bhat, Gandhinagar 382428, India
Prakash M. Raole
Affiliation:
ITER-India, Institute for Plasma Research, Bhat, Gandhinagar 382428, India
Anil K. Tyagi
Affiliation:
ITER-India, Institute for Plasma Research, Bhat, Gandhinagar 382428, India Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
Asha Attri
Affiliation:
ITER-India, Institute for Plasma Research, Bhat, Gandhinagar 382428, India
Pawan K. Kulriya
Affiliation:
Inter-University Accelerator Centre Aruna Asaf Ali Marg, New Delhi 110067, India
Parmendra K. Bajpai
Affiliation:
Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur 495009, India
Sudhir Mishra
Affiliation:
Bhabha Atomic Research Centre, Mumbai 400 085, India
Shiv P. Patel
Affiliation:
Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur 495009, India
Tarkeshwar Trivedi
Affiliation:
Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur 495009, India
K. B. Khan
Affiliation:
Bhabha Atomic Research Centre, Mumbai 400 085, India
Shishir P. Deshpande
Affiliation:
ITER-India, Institute for Plasma Research, Bhat, Gandhinagar 382428, India Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
*
*Author for correspondence: Prashant Sharma, E-mail: prashanttopquark@gmail.com, prashant.sharma@iter-india.org
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Abstract

The difference in the defect structures produced by different ion masses in a tungsten lattice is investigated using 80 MeV Au7+ ions and 10 MeV B3+ ions. The details of the defects produced by ions in recrystallized tungsten foil samples are studied using transmission electron microscopy. Dislocations of type b = 1/2[111] and [001] were observed in the analysis. While highly energetic gold ion produced small clusters of defects with very few dislocation lines, boron has produced large and sparse clusters with numerous dislocation lines. The difference in the defect structures could be due to the difference in separation between primary knock-on atoms produced by gold and boron ions.

Keywords

dislocation loopelectron microscopyirradiation-induced defectsPKA spectrumtungsten
Type
Materials Applications
Information
Microscopy and Microanalysis , Volume 25 , Issue 6 , December 2019 , pp. 1442 - 1448
Copyright
Copyright © Microscopy Society of America 2019 

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