article·1999-01-01

Low-Temperature Sintering of NiCuZn Ferrite for Multilayer-chip Inductor

He Xin

Abstract

The sintering below 900C of NiCuZn ferrite was realized by using Bi2O3 additions. Themechanism of low-temperature sintering was discussed by means of TG,DTA and DDTA. The resultshows the optimum sintering temperature range is 850~ 900℃ and a second phase, Bi36FeZO57formed. The solution of Fe is helpful in both stabilizing cubic structure of r-Bi2O3 and keepingaway from crystal transition during cooling. Bi36Fe2O57 prevents grain growth effectively, so thatthe modification of NiCuZn ferrite can be achieved.
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OpenAlex topics: Geomechanics and Mining Engineering

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