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Superhard pcBN tool materials with Ti3SiC2 MAX-phase binder : Structure, properties, application

Kolabylina, T. LU ; Bushlya, V. LU ; Petrusha, I. A.; Johansson, D. LU ; Ståhl, J. E. LU and Turkevich, V. LU (2017) In Journal of Superhard Materials 39(3). p.155-165
Abstract

Superhard cutting tool materials were sintered in cBN–(Ti3SiC2–TiC) system via high pressure–high temperature method. Sintering was performed under the pressure 8 GPa in the 1400–2400°C temperature range. The initial mixtures of three compositions were chosen with 90, 80 and 60 vol % cBN. The mixtures were prepared by mixing cBN (1–3 μm) and Ti3SiC2–TiC (< 2 μm). It was found, that upon sintering, the compositions of the obtained samples differed from the initial mixtures in all cases as a result of chemical reactions. Microstructure observations, phase composition estimation, and mechanical properties of the obtained tool materials were carried out. The results indicate that both the... (More)

Superhard cutting tool materials were sintered in cBN–(Ti3SiC2–TiC) system via high pressure–high temperature method. Sintering was performed under the pressure 8 GPa in the 1400–2400°C temperature range. The initial mixtures of three compositions were chosen with 90, 80 and 60 vol % cBN. The mixtures were prepared by mixing cBN (1–3 μm) and Ti3SiC2–TiC (< 2 μm). It was found, that upon sintering, the compositions of the obtained samples differed from the initial mixtures in all cases as a result of chemical reactions. Microstructure observations, phase composition estimation, and mechanical properties of the obtained tool materials were carried out. The results indicate that both the varying cBN content and the applied sintering conditions have a direct effect on the structure, properties, and kinetics of reactions.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
HPHT, pcBN, TiSiC MAX-phase
in
Journal of Superhard Materials
volume
39
issue
3
pages
11 pages
publisher
Springer
external identifiers
  • scopus:85021237269
  • wos:000404329700002
ISSN
1063-4576
DOI
10.3103/S1063457617030029
language
English
LU publication?
yes
id
ea24c997-4e71-43a4-bf14-cb0b2c218135
date added to LUP
2017-07-12 12:40:10
date last changed
2017-09-18 11:38:13
@article{ea24c997-4e71-43a4-bf14-cb0b2c218135,
  abstract     = {<p>Superhard cutting tool materials were sintered in cBN–(Ti<sub>3</sub>SiC<sub>2</sub>–TiC) system via high pressure–high temperature method. Sintering was performed under the pressure 8 GPa in the 1400–2400°C temperature range. The initial mixtures of three compositions were chosen with 90, 80 and 60 vol % cBN. The mixtures were prepared by mixing cBN (1–3 μm) and Ti<sub>3</sub>SiC<sub>2</sub>–TiC (&lt; 2 μm). It was found, that upon sintering, the compositions of the obtained samples differed from the initial mixtures in all cases as a result of chemical reactions. Microstructure observations, phase composition estimation, and mechanical properties of the obtained tool materials were carried out. The results indicate that both the varying cBN content and the applied sintering conditions have a direct effect on the structure, properties, and kinetics of reactions.</p>},
  author       = {Kolabylina, T. and Bushlya, V. and Petrusha, I. A. and Johansson, D. and Ståhl, J. E. and Turkevich, V.},
  issn         = {1063-4576},
  keyword      = {HPHT,pcBN,TiSiC MAX-phase},
  language     = {eng},
  month        = {05},
  number       = {3},
  pages        = {155--165},
  publisher    = {Springer},
  series       = {Journal of Superhard Materials},
  title        = {Superhard pcBN tool materials with Ti<sub>3</sub>SiC<sub>2</sub> MAX-phase binder : Structure, properties, application},
  url          = {http://dx.doi.org/10.3103/S1063457617030029},
  volume       = {39},
  year         = {2017},
}