Low temperature co-fired LiZrZn ferrites with LBBS glass
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LiZrZn ferrite materials (Li0.47Zr0.11Zn0.27Fe2.15O4) were synthesized at 900 °C with different contents of LBBS (Li2O-B2O3-Bi2O3-SiO2) glass. We characterized and analyzed the variation in phase formation, structure, sintering shrinkage percentage and magnetic properties of samples along with the content of LBBS glass. A spinel phase could be formed at 900 °C with LBBS glass, which allowed them to be co-fired with silver in LTCF application. The saturation magnetization M s increased first with increase of LBBS glass, and then decreased. The coercivity H c decreased first from 51.1 to 44 Oe, and then increased to 47 Oe. The real part of magnetic permeability increased from about 21 to 29 in a range frequency of 1 MHz ~10 MHz, and magnetic loss kept a low value of about 0.05.
KeywordsFerrite Saturation Magnetization Bi2O3 Magnetic Permeability Li2O
This work was supported by the National High-tech R&D Program of China (863 Program, Grant No. 2015AA034102), and by Open Foundation of National Engineering Research Center of Electromagnetic Radiation Control Materials (No. ZYGX2014K003-8), and the National Natural Science Foundation of China under Grant Nos. 61371053, 61271038 and 51472042.
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