Journal of Inorganic Materials

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Low-temperature Cofiring Behavior of ZMT3/NZC Sandwich Structure Composites

LIU Xiang-Chun1,2, TIAN Chang-Sheng2   

  1. 1. Department of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; 2. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
  • Received:2008-01-07 Revised:2008-03-24 Published:2008-11-20 Online:2008-11-20

Abstract: A novel zero-shrinkage-difference technique was introduced to eliminate the camber or cracks in cofired composites without the degradation, A sandwich structure of (Zn0.7Mg0.3)TiO3(ZMT3) dielectric/(Ni0.8Zn0.12Cu0.12)Fe1.96O4(NZC) ferrite multilayer composite was designed and prepared by using tape-casted technique, with ZMT3 as interlayer, and NZC as top and bottom layers. The produced sandwich structure shows no camber and cracks after being co-sintered. The cofired samples exhibit good dielectric performance (εr=12, tanδ=9.84×10-4), and low firing characteristics (900℃). Due to their dielectric performance, low firing characteristics, and realizable co-firing compatibility, the sandwich structure of ZMT3 dielectric/NZC ferrite multilayer composite can serve as the promising medium materials in the multilayer LC filter.

Key words: ceramics, cofired, camber, sandwich, composite

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