Bulletin of Materials Science

, 42:259 | Cite as

Analysis on the influence of ZnO addition on microwave dielectric properties of \(\hbox {Li}_{{2}}\hbox {MgSiO}_{{4}}\) ceramics

  • Aleena Rose
  • B Masin
  • K Ashok
  • H Sreemoolanadhan
  • T VijayakumarEmail author


Dielectric ceramics have gained wide attention owing to their applicability in a broad range of domains including a microwave communication system. Silicates are considered as the prospective substrate materials for microwave circuits due to their properties complementing with the requisites of a microwave substrate. Lightweight lithium-based silicate ceramic namely lithium magnesium silicate (\(\hbox {Li}_{{2}}\hbox {MgSiO}_{{4}}\), LMS) was prepared by a solid-state reaction method. Zinc oxide (ZnO) was used as an additive to LMS in different weight percentages (0.5, 1.0, 1.5 and 2.0) and LMS-ZnO ceramics were also prepared. The microwave dielectric properties of pure LMS and ZnO-added LMS were measured and the influence of ZnO on LMS was investigated. A dielectric resonance technique was utilized to study the dielectric properties of ceramic samples at 12 GHz. A comparatively higher quality factor of 24,000 GHz was attained by the LMS-ZnO (2 wt%) system with a relative density of 90.2% and <10 dielectric constant of 5.76 making it suitable for substrate applications.


Solid-state reaction silicates dielectric ceramics microwave quality factor 



The authors express their thanks to SRM University, Chennai, India, Advanced Materials and Ceramic Division, Vikram Sarabhai Space Centre, Trivandrum, India, and Department of Science and Technology (DST), SAIF-IIT Madras, India, for providing assistance to complete this research work.


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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  • Aleena Rose
    • 1
  • B Masin
    • 2
  • K Ashok
    • 2
  • H Sreemoolanadhan
    • 2
  • T Vijayakumar
    • 1
    Email author
  1. 1.Futuristic Materials Research Centre for Planetary Exploration, Department of Physics and Nanotechnology, Faculty of Engineering and TechnologySRM Institute of Science and TechnologyKattankulathur, KancheepuramIndia
  2. 2.Advanced Materials and Ceramic DivisionVikram Sarabhai Space CenterThiruvananthapuramIndia

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