Submitted on: 15 April 2002.
Revised on: 16 July 2002.
Accepted on: 21 August 2002.
___________________Journal of Superhard Materials
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Submitted on: 06 September 2021.
Revised on: 13 December 2021.
Accepted on: 02 January 2022.
___________________Journal of Superhard Materials
Submitted on: 08 September 1998.
Revised on: 27 November 1998.
Accepted on: 18 December 1998.
___________________Journal of Superhard Materials
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Submitted on: 10 June 2024.
Revised on: 19 July 2024.
Accepted on: 29 July 2024.
___________________Journal of Superhard Materials
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Submitted on: 04 October 2022.
Revised on: 22 December 2022.
Accepted on: 09 January 2023.
___________________Journal of Superhard Materials
Submitted on: 22 May 2002.
Revised on: 17 August 2002.
Accepted on: 09 September 2002.
___________________Journal of Superhard Materials