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Cu25W Kompozit Tozunun Bilyeli Öğütme Yöntemiyle Üretimine Farklı İşlem Kontrol Katkılarının Etkisinin İncelenmesi

Year 2019, , 222 - 228, 15.04.2019
https://doi.org/10.17714/gumusfenbil.426995

Abstract

Bakır
(Cu) esaslı kompozitler, özellikle de tungsten (W) veya molibden gibi refrakter
metal içeren bileşimler geleneksel malzemelere göre daha geniş bir sıcaklık
aralığında üstün fiziksel ve mekanik özellikler sergilerler. Cu-esaslı
refrakter metal içerikli kompozitler yüksek sertlikleri, iyi derecede ısıl ve
elektriksel iletkenlikleri ve ark-erozyonuna karşı yüksek dirençleri sebebiyle
özellikle elektrik kontak malzemeleri olarak yaygın bir şekilde
kullanılmaktadır. Söz konusu kompozitlerin bilyeli öğütme yöntemiyle üretimi
mümkün olmakla birlikte bu yöntemde mevcut olan işlem kontrol katkısı, öğütme
hızı, bilye-toz-ağırlık oranı, öğütme süresi vb. gibi birçok işlem
değişkenlerinin etkilerinin ayrı ayrı incelenmesi önem arz etmektedir. Bu
çalışmada; bilyeli öğütme değişkenlerinden bir tanesi olan işlem kontrol
katkısının, Cu-esaslı W-takviyeli kompozit tozunun üretimine olan etkisi
incelenmiştir. Bu amaçla sıvı işlem kontrol katkılarından olan etanol ve
metanol; element haldeki Cu ve W tozlarından hazırlanan karışımlara ayrı ayrı
katılarak iki istasyonlu gezegen tip bilyeli öğütücüde öğütme işlemleri
gerçekleştirilmiştir. Etanol ve metanol katkılarının Cu25W toz boyut ve
morfolojisine olan etkileri parçacık boyut analizi ve taramalı elektron
mikroskopisi (SEM) kullanılarak incelenmiştir. Artan öğütme süresi ile birlikte
her iki bileşimde de ortalama parçacık boyutunda azalma gözlenmiştir. Söz
konusu azalma özellikle metanol katkısı içeren toz karışımında daha belirgin
olduğundan dolayı Cu25W kompozit tozunun üretiminde ağırlıkça % 2’lik oran için
bir işlem kontrol katkısı olarak metanolün etanole göre daha etkili olduğu
görülmüştür. Ayrıca, metanol katkısı ile 25 saatlik öğütme süresi sonunda
etanol katkılı toz karışımına nazaran daha homojen bir dağılım elde edildiği
görülmüştür. 

References

  • Bıyık, S., 2017. Characterization of Nanocrystalline Cu25Mo Electrical Contact Material Synthesized via Ball Milling. Acta Physica Polonica A, 132, (3), 886-888.
  • Bıyık, S. ve Aydın, M., 2017/1. Fabrication and Arc-Erosion Behavior of Ag8SnO2 Electrical Contact Materials under Inductive Loads. Acta Physica Polonica A, 131, (3), 339-342.
  • Bıyık, S. ve Aydın, M., 2017/2. Optimization of Mechanical Alloying Parameters of Cu25W Electrical Contact Material. Acta Physica Polonica A, 132, (3), 909-912.
  • Bıyık, S. ve Aydın, M., 2016. Investigation of the Effect of Different Current Loads on the Arc-Erosion Performance of Electrical Contacts. Acta Physica Polonica A, 129, (4), 656-660.
  • Bıyık, S., Arslan, F. ve Aydın, M., 2015. Arc-Erosion Behavior of Boric Oxide-Reinforced Silver-Based Electrical Contact Materials Produced by Mechanical Alloying. Journal of Electronic Materials, 44, (1), 457-466.
  • Bıyık, S. ve Aydın, M., 2015. The Effect of Milling Speed on Particle Size and Morphology of Cu25W Composite Powder. Acta Physica Polonica A, 127, (4), 1255-1260.
  • Cosovic, V., Talijan, N., Zivkovic, D., Minic, D. ve Zivkovic, Z., 2012. Comparison of Properties of Silver-Metal Oxide Electrical Contact Materials. Journal of Mining and Metallurgy, 48, (1), 131-141.
  • Dong, L.L., Chen, W.G., Deng, N., Song, J.L. ve Wang, J.J., 2017. Investigation on Arc Erosion Behaviors and Mechanism of W70Cu30 Electrical Contact Materials Adding Graphene. Journal of Alloys and Compounds, 696, 923-930.
  • Feng, Y., Yuan, H.L. ve Zhang, M., 2005. Fabrication and Properties of Silver-Matrix Composites Reinforced by Carbon Nanotubes. Materials Characterization, 55, 211-218.
  • Li, H.Y., Wang, X.H., Liu, Y.F. ve Guo, X.H., 2017. Effect of Strengthening Phase on Material Transfer Behavior of Ag-based Contact Materials under Different Voltages. Vacuum, 135, 55-65.
  • Pandey, A., Verma, P. ve Pandey, O.P., 2008. Comparison of Properties of Silver-Tin Oxide Electrical Contact Materials Through Different Processing Routes. Indian Journal of Engineering & Materials Sciences, 15, 236-240.
  • Shi, Q., Yang, J., Peng, W.X., Dong, J.Z., Chu, Y.Q., Tang, H. ve Li, C.S., 2015. Synergetic Effect of NbSe2 and Cr2Nb on the Tribological and Electrical Behavior of Cu-based Electrical Contact Composites. Rsc Advances, 5, (122), 100472-100481.
  • Suryanarayana, C., 2004. Mechanical Alloying and Milling. CRC Press, Boca Raton, FL, 488p.
  • Yusefi, A. ve Parvin, N., 2017. Fabrication of Three Layered W-Cu Functionally Graded Composite via Spark Plasma Sintering. Fusion Engineering and Design, 114, 196-202.
  • Zhu, S., Liu, Y., Tian, B., Zhang, Y. ve Song, K., 2017. Arc Erosion Behavior and Mechanism of Cu/Cr20 Electrical Contact Material. Vacuum, 143, 129-137.

Investigation of the Effect of Different Process Control Agents on the Production of Cu25W Composite Powder via Ball Milling Technique

Year 2019, , 222 - 228, 15.04.2019
https://doi.org/10.17714/gumusfenbil.426995

Abstract

Copper (Cu)
based composites, especially compositions containing refractory metals such as
tungsten (W) or molybdenum, exhibit superior physical and mechanical properties
over a wide range of temperatures compared to conventional materials. Due to
their high hardness, good electrical and thermal conductivities, and excellent
arc-erosion resistance; Cu-based refractory metal reinforced composites are
frequently used as electrical contact materials. Although, it is possible to
produce aforementioned composites via ball milling technique, this method also
contains several parameters that have to be investigated in detail, such as
process control agent, milling speed, ball-to-powder weight ratio, milling
time, and so on. In this paper; the effect of process control agent, which is
one of the most important parameters in ball milling technique, on production
of Cu-based W-reinforced composite powder was investigated
. For this
purpose, two different liquid process control agents, namely ethanol and
methanol were separately added to powder mixtures containing elemental Cu and
W, and then ball milling experiments were performed using a two stationary
planetary-type ball mill. The effects of ethanol and methanol additions on
particle size and morphology of Cu25W powder mixture was investigated using
laser diffraction analysis (Mastersizer) and scanning electron microscopy
(SEM). It was found that average particle size values of both compositions
decreased with increasing milling duration. Considering its improved particle
size reduction effectiveness as a process control agent, methanol at the amount
of 2 wt.% was found to be more effective comparing to the same amount of
ethanol in terms of producing Cu25W composite powder. Besides, more homogeneous
dispersion of elements was achieved in powder mixture containing methanol after
ball milling duration of 25 hours
.

References

  • Bıyık, S., 2017. Characterization of Nanocrystalline Cu25Mo Electrical Contact Material Synthesized via Ball Milling. Acta Physica Polonica A, 132, (3), 886-888.
  • Bıyık, S. ve Aydın, M., 2017/1. Fabrication and Arc-Erosion Behavior of Ag8SnO2 Electrical Contact Materials under Inductive Loads. Acta Physica Polonica A, 131, (3), 339-342.
  • Bıyık, S. ve Aydın, M., 2017/2. Optimization of Mechanical Alloying Parameters of Cu25W Electrical Contact Material. Acta Physica Polonica A, 132, (3), 909-912.
  • Bıyık, S. ve Aydın, M., 2016. Investigation of the Effect of Different Current Loads on the Arc-Erosion Performance of Electrical Contacts. Acta Physica Polonica A, 129, (4), 656-660.
  • Bıyık, S., Arslan, F. ve Aydın, M., 2015. Arc-Erosion Behavior of Boric Oxide-Reinforced Silver-Based Electrical Contact Materials Produced by Mechanical Alloying. Journal of Electronic Materials, 44, (1), 457-466.
  • Bıyık, S. ve Aydın, M., 2015. The Effect of Milling Speed on Particle Size and Morphology of Cu25W Composite Powder. Acta Physica Polonica A, 127, (4), 1255-1260.
  • Cosovic, V., Talijan, N., Zivkovic, D., Minic, D. ve Zivkovic, Z., 2012. Comparison of Properties of Silver-Metal Oxide Electrical Contact Materials. Journal of Mining and Metallurgy, 48, (1), 131-141.
  • Dong, L.L., Chen, W.G., Deng, N., Song, J.L. ve Wang, J.J., 2017. Investigation on Arc Erosion Behaviors and Mechanism of W70Cu30 Electrical Contact Materials Adding Graphene. Journal of Alloys and Compounds, 696, 923-930.
  • Feng, Y., Yuan, H.L. ve Zhang, M., 2005. Fabrication and Properties of Silver-Matrix Composites Reinforced by Carbon Nanotubes. Materials Characterization, 55, 211-218.
  • Li, H.Y., Wang, X.H., Liu, Y.F. ve Guo, X.H., 2017. Effect of Strengthening Phase on Material Transfer Behavior of Ag-based Contact Materials under Different Voltages. Vacuum, 135, 55-65.
  • Pandey, A., Verma, P. ve Pandey, O.P., 2008. Comparison of Properties of Silver-Tin Oxide Electrical Contact Materials Through Different Processing Routes. Indian Journal of Engineering & Materials Sciences, 15, 236-240.
  • Shi, Q., Yang, J., Peng, W.X., Dong, J.Z., Chu, Y.Q., Tang, H. ve Li, C.S., 2015. Synergetic Effect of NbSe2 and Cr2Nb on the Tribological and Electrical Behavior of Cu-based Electrical Contact Composites. Rsc Advances, 5, (122), 100472-100481.
  • Suryanarayana, C., 2004. Mechanical Alloying and Milling. CRC Press, Boca Raton, FL, 488p.
  • Yusefi, A. ve Parvin, N., 2017. Fabrication of Three Layered W-Cu Functionally Graded Composite via Spark Plasma Sintering. Fusion Engineering and Design, 114, 196-202.
  • Zhu, S., Liu, Y., Tian, B., Zhang, Y. ve Song, K., 2017. Arc Erosion Behavior and Mechanism of Cu/Cr20 Electrical Contact Material. Vacuum, 143, 129-137.
There are 15 citations in total.

Details

Primary Language Turkish
Subjects Engineering
Journal Section Articles
Authors

Serkan Bıyık 0000-0002-6083-0802

Publication Date April 15, 2019
Submission Date May 25, 2018
Acceptance Date August 8, 2018
Published in Issue Year 2019

Cite

APA Bıyık, S. (2019). Cu25W Kompozit Tozunun Bilyeli Öğütme Yöntemiyle Üretimine Farklı İşlem Kontrol Katkılarının Etkisinin İncelenmesi. Gümüşhane Üniversitesi Fen Bilimleri Dergisi, 9(2), 222-228. https://doi.org/10.17714/gumusfenbil.426995