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Abstract In order to explore an economical functional phase alternative material for thick film resistors, the crystal structure, microstructure, and electrical properties of (1-x)La0.5Sr0.5Co0.96Ni0.04O3-δ + xLaCo0.4Ni0.58Zn0.02O3 (x = 0.0–1.0) composite ceramics were studied… Click to show full abstract
Abstract In order to explore an economical functional phase alternative material for thick film resistors, the crystal structure, microstructure, and electrical properties of (1-x)La0.5Sr0.5Co0.96Ni0.04O3-δ + xLaCo0.4Ni0.58Zn0.02O3 (x = 0.0–1.0) composite ceramics were studied through solid-state reaction experiments. The composite ceramics were characterized by x–ray diffraction, scanning electron microscopy, energy dispersive x–ray spectroscopy, X-ray photoelectron spectroscopy, and DC four–probe method. Results suggested that the main phases of La0.5Sr0.5Co0.96Ni0.04O3-δ and LaCo0.4Ni0.58Zn0.02O3 were formed, along with a small part of impurity phases. The addition of LaCo0.4Ni0.58Zn0.02O3 to La0.5Sr0.5Co0.96Ni0.04O3-δ decreased the electrical conductivity and changed the temperature coefficient of resistance from positive to negative. Zero temperature coefficient of resistance could be achieved around 0.6
Journal Title: Journal of Alloys and Compounds
Year Published: 2021
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