Influence of cBN content, Al2O3 and Si3N4 additives and their morphology on microstructure, properties, and wear of PCBN with NbN binder
(2020) In Ceramics International 46(14). p.22230-22238- Abstract
Polycrystalline cubic boron nitride (PCBN) tool materials with NbN binder without additives and PCBN with Al2O3 or Si3N4 micropowder and whisker additives were manufactured and compared. PCBN materials with Si3N4 whisker reinforcement have the best mechanical properties of all the evaluated materials. Composites reinforced with Al2O3 whiskers have the lowest fracture toughness. However, Al2O3 whisker-reinforced tools outperform both commercial and Si3N4 reinforced tools when machining hardened steel. Thus Al2O3 whisker-reinforced PCBN materials are promising for industrial... (More)
Polycrystalline cubic boron nitride (PCBN) tool materials with NbN binder without additives and PCBN with Al2O3 or Si3N4 micropowder and whisker additives were manufactured and compared. PCBN materials with Si3N4 whisker reinforcement have the best mechanical properties of all the evaluated materials. Composites reinforced with Al2O3 whiskers have the lowest fracture toughness. However, Al2O3 whisker-reinforced tools outperform both commercial and Si3N4 reinforced tools when machining hardened steel. Thus Al2O3 whisker-reinforced PCBN materials are promising for industrial applications, likely due to their higher resistance to oxidation and diffusional wear mechanisms during cutting operations.
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- author
- Rumiantseva, Yu ; Melnichuk, Iu ; Garashchenko, V. ; Zaporozhets, O. ; Turkevich, V. LU and Bushlya, V. LU
- organization
- publishing date
- 2020-10-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- cBN, Fracture toughness, Phase composition, Wear, Whiskers
- in
- Ceramics International
- volume
- 46
- issue
- 14
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85086644875
- ISSN
- 0272-8842
- DOI
- 10.1016/j.ceramint.2020.05.300
- language
- English
- LU publication?
- yes
- id
- 1fbb651d-76a9-41cb-b841-16427967f63b
- date added to LUP
- 2020-06-29 21:01:15
- date last changed
- 2023-11-20 07:15:55
@article{1fbb651d-76a9-41cb-b841-16427967f63b, abstract = {{<p>Polycrystalline cubic boron nitride (PCBN) tool materials with NbN binder without additives and PCBN with Al<sub>2</sub>O<sub>3</sub> or Si<sub>3</sub>N<sub>4</sub> micropowder and whisker additives were manufactured and compared. PCBN materials with Si<sub>3</sub>N<sub>4</sub> whisker reinforcement have the best mechanical properties of all the evaluated materials. Composites reinforced with Al<sub>2</sub>O<sub>3</sub> whiskers have the lowest fracture toughness. However, Al<sub>2</sub>O<sub>3</sub> whisker-reinforced tools outperform both commercial and Si<sub>3</sub>N<sub>4</sub> reinforced tools when machining hardened steel. Thus Al<sub>2</sub>O<sub>3</sub> whisker-reinforced PCBN materials are promising for industrial applications, likely due to their higher resistance to oxidation and diffusional wear mechanisms during cutting operations.</p>}}, author = {{Rumiantseva, Yu and Melnichuk, Iu and Garashchenko, V. and Zaporozhets, O. and Turkevich, V. and Bushlya, V.}}, issn = {{0272-8842}}, keywords = {{cBN; Fracture toughness; Phase composition; Wear; Whiskers}}, language = {{eng}}, month = {{10}}, number = {{14}}, pages = {{22230--22238}}, publisher = {{Elsevier}}, series = {{Ceramics International}}, title = {{Influence of cBN content, Al<sub>2</sub>O<sub>3</sub> and Si<sub>3</sub>N<sub>4</sub> additives and their morphology on microstructure, properties, and wear of PCBN with NbN binder}}, url = {{http://dx.doi.org/10.1016/j.ceramint.2020.05.300}}, doi = {{10.1016/j.ceramint.2020.05.300}}, volume = {{46}}, year = {{2020}}, }