Sintering dense NiZn ferrite by two-step sintering process
Sintering dense NiZn ferrite by two-step sintering process
复制标题
DOI：
10.1063/1.3535418
复制
发表时间：
2011-04-01
影响因子：
3.2
通讯作者：
Shen, Jian
中科院分区：
文献类型：
--
作者：
Su, Hua;Tang, Xiaoli;Shen, Jian
采用两步烧结法制备了成分为(NiO)(0.35)(ZnO)(0.57)(CuO)(0.08)(Fe_2O_3)的NiZn铁氧体。研究了该铁氧体的致密化、显微组织和磁性能，并与传统的终烧工艺生产的铁氧体进行了比较。结果表明，高温1200℃、低温1100℃两步烧结法制备的样品达到了理论密度的96%以上，且显微组织均匀，平均晶粒度较小。在透气性和Q因子方面也表现出良好的性能。因此，这似乎是一种制备致密铁氧体的有效方法，其微观结构由细小均匀的颗粒组成，是提高铁氧体磁性能的一种非常有效的策略。(C)2011年美国物理研究所。[DOI：10.1063/1.3535418]
A two-step sintering process has been adopted to produce NiZn ferrite with composition of (NiO)(0.35)(ZnO)(0.57)(CuO)(0.08)(Fe2O3). The densification, microstructure, and magnetic properties of the ferrite have been investigated and compared with those of ferrites produced by the traditional final-stage sintering process. It was found that the sample produced by a two-step sintering process with a high temperature of 1200 degrees C and a lower temperature of 1100 degrees C attained more than 96% of the theoretical density and had a uniform microstructure with a small average grain size. It also exhibited good performances in terms of permeability and Q-factor. Hence, this would seem to be an effective method for producing dense ferrites with a microstructure composed of small and even grains, which is a very effective strategy for improving the magnetic properties of ferrites. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3535418]