Effect of ZnO-B_2O_3-SiO_2 glass additive on magnetic properties of low-sintering Li_(0.43)Zn_(0.27)Ti_(0.13)Fe_(2.17)O_4 ferrites

摘要

ZBS glasses (0.125-2.0 wt%) composed of ZnO-B_2O_3-SiO_2 were added into the LiZnTi (Li_(0.43) Zn_(0.27)Ti_(0.13)Fe_(2.17)O_4) ferrites to achieve low temperature sintering. Variations in microstructure, bulk density and ferromagnetic properties of the ferrites along with the changes of ZBS glasses concentration were discussed and analyzed in detail. Results suggest that LiZnTi ferrites mixed with appropriate amount of ZBS glass possess high saturation magnetization intensity, low coercivity, and low ferromagnetic resonance line width. Although this sintering process was completed at a low temperature (～ 900 ℃), the ferrites still kept relatively good magnetic properties. Thus, the ZBS glass is a promising additive for low temperature sintering of LiZnTi ferrites.