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Al2O3/Y2O3/ZrO2 Ceramic Composite Properties Investigation by Plasma Focus Device

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Abstract

The Al2O3–Y2O3–ZrO2 eutectic composition samples were prepared using the Al2O3, Y2O3, ZrO2 powder treated at 900 °C for 30 min, pressed at 5 ton for 15 s and sintered at 1500 °C for 2 h. The locally made dense plasma focus (DPF) system with energy 2.8 kJ was used to surface modification of these samples. The samples, mounted at distance about 2 cm from the anode, were exposed to three shots of the DPF in Ar gas at a pressure of 0.8 mbar. The phase and elemental analysis of the untreated and plasma treated samples were conducted by the Raman and EDX spectroscopy. The Raman spectroscopy showed the formation of new phases (α-Al2O3 and c-ZrO2) in the treated samples. The micro-hardness of the plasma treated samples was increased by about 280 % in comparison with the untreated sample.

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Acknowledgments

The authors would like to express their gratitude to Prof. I. Othman the director general of the AECS, for his continuous guidance and encouragement.

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Authors and Affiliations

  1. Physics Department, Faculty of Science, Damascus University, Damascus, Syria

    S. Ayash & K. Alshoufi

  2. Physics Department, Atomic Energy Commission, Damascus, Syria

    M. Soukieh & Sh. Al-Hawat

Authors
  1. S. Ayash
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  2. K. Alshoufi
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  3. M. Soukieh
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  4. Sh. Al-Hawat
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Correspondence to S. Ayash.

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Ayash, S., Alshoufi, K., Soukieh, M. et al. Al2O3/Y2O3/ZrO2 Ceramic Composite Properties Investigation by Plasma Focus Device. J Fusion Energ 35, 567–572 (2016). https://doi.org/10.1007/s10894-016-0071-4

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  • DOI: https://doi.org/10.1007/s10894-016-0071-4

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