Laser sintering of Cu-Zr-ZrB2 composite
Abstract
Cu-4.1Zr-1.1B (wt%) composite has been synthesized by mechanical alloying, cold pressing of mechanically alloyed powders and, for the first time in literature, sintering by laser irradiation (pulsed, millisecond Nd: YAG laser was employed) in nitrogen atmosphere. The influence of different sintering parameters on the properties of laser-sintered materials was investigated. Microstructural changes during laser sintering were studied using scanning electron microscopy and X-ray diffraction. Rapidly solidified structure, as well as the presence of ZrB2 particles and metastable CuZr phase, which are a product of laser sintering, affected higher degree of copper matrix hardening which was retained up to high temperatures. In general, laser sintering of Cu-4.1Zr-1.1B (wt%) green compact using the parameters: laser frequency 3 Hz, laser pulse duration 8 ms, pulse energy similar to 19 J, number of scans 4 yields the optimum combination of high density, microhardness and electrical conductivity.... (C) 2014 Elsevier B.V. All rights reserved.
Keywords:
Copper matrix composite / Laser sintering / In situ ZrB2 formation / Electron microscopy / Microhardness / Electrical conductivitySource:
Applied Surface Science, 2014, 321, 353-357Funding / projects:
- The effect of nano- and microconstituents on the synthesis and characteristics of novel composite materials with metal matrix (RS-MESTD-Basic Research (BR or ON)-172005)
DOI: 10.1016/j.apsusc.2014.10.021
ISSN: 0169-4332; 1873-5584
WoS: 000345507900048
Scopus: 2-s2.0-84912089492
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Institution/Community
VinčaTY - JOUR AU - Stašić, Jelena AU - Trtica, Milan AU - Rajković, Višeslava M. AU - Ružić, Jovana AU - Božić, Dušan PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/58 AB - Cu-4.1Zr-1.1B (wt%) composite has been synthesized by mechanical alloying, cold pressing of mechanically alloyed powders and, for the first time in literature, sintering by laser irradiation (pulsed, millisecond Nd: YAG laser was employed) in nitrogen atmosphere. The influence of different sintering parameters on the properties of laser-sintered materials was investigated. Microstructural changes during laser sintering were studied using scanning electron microscopy and X-ray diffraction. Rapidly solidified structure, as well as the presence of ZrB2 particles and metastable CuZr phase, which are a product of laser sintering, affected higher degree of copper matrix hardening which was retained up to high temperatures. In general, laser sintering of Cu-4.1Zr-1.1B (wt%) green compact using the parameters: laser frequency 3 Hz, laser pulse duration 8 ms, pulse energy similar to 19 J, number of scans 4 yields the optimum combination of high density, microhardness and electrical conductivity. (C) 2014 Elsevier B.V. All rights reserved. T2 - Applied Surface Science T1 - Laser sintering of Cu-Zr-ZrB2 composite VL - 321 SP - 353 EP - 357 DO - 10.1016/j.apsusc.2014.10.021 ER -
@article{ author = "Stašić, Jelena and Trtica, Milan and Rajković, Višeslava M. and Ružić, Jovana and Božić, Dušan", year = "2014", abstract = "Cu-4.1Zr-1.1B (wt%) composite has been synthesized by mechanical alloying, cold pressing of mechanically alloyed powders and, for the first time in literature, sintering by laser irradiation (pulsed, millisecond Nd: YAG laser was employed) in nitrogen atmosphere. The influence of different sintering parameters on the properties of laser-sintered materials was investigated. Microstructural changes during laser sintering were studied using scanning electron microscopy and X-ray diffraction. Rapidly solidified structure, as well as the presence of ZrB2 particles and metastable CuZr phase, which are a product of laser sintering, affected higher degree of copper matrix hardening which was retained up to high temperatures. In general, laser sintering of Cu-4.1Zr-1.1B (wt%) green compact using the parameters: laser frequency 3 Hz, laser pulse duration 8 ms, pulse energy similar to 19 J, number of scans 4 yields the optimum combination of high density, microhardness and electrical conductivity. (C) 2014 Elsevier B.V. All rights reserved.", journal = "Applied Surface Science", title = "Laser sintering of Cu-Zr-ZrB2 composite", volume = "321", pages = "353-357", doi = "10.1016/j.apsusc.2014.10.021" }
Stašić, J., Trtica, M., Rajković, V. M., Ružić, J.,& Božić, D.. (2014). Laser sintering of Cu-Zr-ZrB2 composite. in Applied Surface Science, 321, 353-357. https://doi.org/10.1016/j.apsusc.2014.10.021
Stašić J, Trtica M, Rajković VM, Ružić J, Božić D. Laser sintering of Cu-Zr-ZrB2 composite. in Applied Surface Science. 2014;321:353-357. doi:10.1016/j.apsusc.2014.10.021 .
Stašić, Jelena, Trtica, Milan, Rajković, Višeslava M., Ružić, Jovana, Božić, Dušan, "Laser sintering of Cu-Zr-ZrB2 composite" in Applied Surface Science, 321 (2014):353-357, https://doi.org/10.1016/j.apsusc.2014.10.021 . .