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Powders of ilmenite structure NiTiO 3 and CoTiO 3 were prepared by a simple method based on the modified Pechini process. The raw compounds and citric acid (CA) were mixed in ethanol (EA) with the molar ratio Ni(Co)/Ti/CA/EA=1/1/1/7.5. The DTA curve shows exothermic peaks only around 300–350°C and 600°C, which correspond to the decomposition of the organic compound and direct crystallization...
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