Extreme Hardness Achievements in Binderless Cubic Boron Nitride Tools
(2013) 41-st SME North American Manufacturing Research Conference p.449-457- Abstract
- Binderless cubic boron nitride tools are available in two forms: single phase cBN and dual phase wBN/cBN (w is
wurtzite phase). In this work, a novel heat treatment process involving surface heating using a continuous wave
CO2 laser followed by tandem waterjet quenching of the laser beam path was applied to increase the hardness of
both forms of boron nitride. Stress-induced phase transitions and nanometric grain sizes accompanying the rapid
quench heat treatment enabled a hardness increase of 20% in single phase cBN (nominal 60 GPa) and 100% in dual
phase wBN/cBN (nominal 75 GPa) that attest the ability of cBN to reach the hardness of polycrystalline diamond
(65-80 GPa). The effects of... (More) - Binderless cubic boron nitride tools are available in two forms: single phase cBN and dual phase wBN/cBN (w is
wurtzite phase). In this work, a novel heat treatment process involving surface heating using a continuous wave
CO2 laser followed by tandem waterjet quenching of the laser beam path was applied to increase the hardness of
both forms of boron nitride. Stress-induced phase transitions and nanometric grain sizes accompanying the rapid
quench heat treatment enabled a hardness increase of 20% in single phase cBN (nominal 60 GPa) and 100% in dual
phase wBN/cBN (nominal 75 GPa) that attest the ability of cBN to reach the hardness of polycrystalline diamond
(65-80 GPa). The effects of laser heat treatment are identified by an examination of the changes in phase and
microstructure by Raman spectroscopy, high resolution scanning electron microscopy and X-ray diffraction. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4251026
- author
- Melaibari, Ammar ; Wu, Zhuoru ; Molian, Pal ; Shrotria, Pranav ; Bushlya, Volodymyr LU ; Zhou, Jinming LU ; Ståhl, Jan-Eric LU and Petrusha, Igor
- organization
- publishing date
- 2013
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Transactions of the North American Manufacturing Research Institution of SME Volume 41, 2013
- editor
- Ziegert, John
- pages
- 9 pages
- conference name
- 41-st SME North American Manufacturing Research Conference
- conference location
- Madison, Wisconsin, United States
- conference dates
- 2013-06-10
- external identifiers
-
- other:NAMRC41-1547
- scopus:84892689993
- ISBN
- 978-1-62748-697-2
- language
- English
- LU publication?
- yes
- id
- 3b44fe84-2241-4c05-bd57-ca8e0f442e12 (old id 4251026)
- date added to LUP
- 2016-04-04 13:51:13
- date last changed
- 2022-01-30 01:01:55
@inproceedings{3b44fe84-2241-4c05-bd57-ca8e0f442e12,
abstract = {{Binderless cubic boron nitride tools are available in two forms: single phase cBN and dual phase wBN/cBN (w is<br/><br>
wurtzite phase). In this work, a novel heat treatment process involving surface heating using a continuous wave<br/><br>
CO2 laser followed by tandem waterjet quenching of the laser beam path was applied to increase the hardness of<br/><br>
both forms of boron nitride. Stress-induced phase transitions and nanometric grain sizes accompanying the rapid<br/><br>
quench heat treatment enabled a hardness increase of 20% in single phase cBN (nominal 60 GPa) and 100% in dual<br/><br>
phase wBN/cBN (nominal 75 GPa) that attest the ability of cBN to reach the hardness of polycrystalline diamond<br/><br>
(65-80 GPa). The effects of laser heat treatment are identified by an examination of the changes in phase and<br/><br>
microstructure by Raman spectroscopy, high resolution scanning electron microscopy and X-ray diffraction.}},
author = {{Melaibari, Ammar and Wu, Zhuoru and Molian, Pal and Shrotria, Pranav and Bushlya, Volodymyr and Zhou, Jinming and Ståhl, Jan-Eric and Petrusha, Igor}},
booktitle = {{Transactions of the North American Manufacturing Research Institution of SME Volume 41, 2013}},
editor = {{Ziegert, John}},
isbn = {{978-1-62748-697-2}},
language = {{eng}},
pages = {{449--457}},
title = {{Extreme Hardness Achievements in Binderless Cubic Boron Nitride Tools}},
year = {{2013}},
}