【摘要】 锰锌铁氧体广泛用于各种有线通讯设备中,其使用的频率为几百kHz到几十MHz。但纯的锰锌铁氧体的磁导率（μ）的温度系数（在—40℃至80℃范围内）较大,在应用中使频率发生漂移,给使用造成了困难。为了改善μ（T）曲线,而添加了少量的各种元素进行试验,其中发现Ti对改善μ（T）曲线的效果较好。为了弄清Ti的作用,对含Ti的（Mn-Zn）Fe₂O₄的结构进行了中子衍射分析,得到的结果是:Ti择优占据B位,Mn及Zn择优占据A位,并测定了分子磁矩。最后对结果进行了初步的讨论。更多还原

【Abstract】 Mn-Zn ferrite was used extensively in a variety of communications. The frequency range is from several hundreds kHz to several MHz. But in the range of - 40-80℃ the temperature coefficient of the permeability of the pure Mn-Zn ferrite is rather high which makes the working frequency to drift a little. This causes some trouble in use. In order to improve μ(T) curve, a variety of elements were taken to add to the Mn-Zn ferrite. It has been found out that the μ(T) curve is improved efficiently by adding only a small amount of titanium to the Mn-Zn ferrite. In order to understand the effect of titanium in the material, the neutron diffraction structure analysis of Mn-Zn ferrite containing titanium was carried out. The experimental results show that Ti atom occupies B site, Mn and Zn occupy A site preferentially. In addition the magnetic moment per molcule was also measured. The results are discussed preliminarily.更多还原