Synthesis of Al2O3-ZrO2 Nanocomposite by Mechanical Activated Self-propagating High Temperature Synthesis and Ignited via Laser
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-27-4_004
تاریخ نمایه سازی: 17 خرداد 1393
Abstract:
Al2O3-ZrO2composite has unique properties such as high toughness, high wear resistant and relative low thermal expansion. In this study, nanocomposite of Al2O3-ZrO2 was produced by Mechanicalactivated Self propagating High-temperature Synthesis (MASHS) using laser beam for ignition. Al andZrO2 powders were mixed in the mole ratio of 1:1 and milled for 1, 3 and 6 hours. The mixtures were pressed and were exposed by continuous wave (CW) CO2 laser for combustion reaction to start. In order to characterize the products, X-ray diffraction (XRD), scanning electron microscopy (SEM) andEnergy-Dispersive X-ray spectroscopy (EDX) were implemented. The XRD results show that samples have α-Alumina and also cubic and monoclinic phases Zirconium oxides together. The dendrite structures were formed during the process.
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Authors
m Ganjali
Department of Nanotechnology and Advanced Materials, Material and Energy Research Center (MERC), Karaj, Iran
m.r Vaezi
Department of Nanotechnology and Advanced Materials, Material and Energy Research Center (MERC), Karaj, Iran
s.a Tayebifard
Department of Nanotechnology and Advanced Materials, Material and Energy Research Center (MERC), Karaj, Iran
s Asgharpour
Department of Nanotechnology and Advanced Materials, Material and Energy Research Center (MERC), Karaj, Iran