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1篇 您的检索式:作者名="Reza Beygi"
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1Synthesis of a NiTi_(2)–AlNi–Al_(2)O_(3) nanocomposite by mechanical alloying and heat treatment of Al–TiO_(2)–NiO显示文摘The aim of the present study was to investigate the phases formed during ball milling of Al–TiO_2–NiO. For this purpose, a mixture of Al–TiO_2–NiO with a molar ratio of 6:1:1 was used. Characterization of the milled powders by X-ray diffraction, differential thermal analysis, field-emission scanning electron microscopy, and transmission electron microscopy showed the formation of nanocrystalline NiTi_2 along with AlNi. A thermodynamical investigation confirmed that NiO was reduced by Al during ball milling, which consequently promoted TiO_2 reduction and the formation of NiTi_2. Al is capable of reducing NiO either during ball milling or at temperatures above the melting point of Al; by contrast, TiO_2 can be reduced by Al only by milling.Reza Beygi Majid Zarezadeh Mehrizi Hossein Mostaan Mahdi Rafiei Ahmadreza Abbasian 2019International Journal of Minerals,Metallurgy and Materials2019,26,3:0
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