THE STUDY OF THE THERMAL PROPERTIES OF SPINEL NICKEL ALUMINATE | ||
| Iraqi journal of mechanical and material engineering | ||
| Article 1, Volume 16, Issue 1, March 2016, Pages 45-59 | ||
| Authors | ||
| Alaa Hassan Fadhil; Mohsin A. Aswad; Ahmed O. Al-Roubaiy | ||
| Abstract | ||
| Spinel nickel aluminate is an important industrial material, has been synthesized by a solid state reaction method from nano powders γ- Al2O3 and NiO represented as a theoretical batch. Sintering the raw materials was done at rate heating 4 OC/min in 1500 OC. The sintered specimens were investigated employing by X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDS) and scanning electron microscopy techniques (SEM). It is that the formation nickel aluminate spinel was completed in 1500 oC, at the following percent (20 wt % NiO and 30wt% NiO and 50 wt% NiO), thermal properties have been also investigated for sintered specimens. The new composite materials it high thermal expansion stability and resistant to thermal shock at 1200oC, especially with 30 wt % NiO. | ||
| Keywords | ||
| XRD; SEM; EDS; NiO nano particle; spinel nickel aluminate | ||
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