Microwave dielectric properties of low temperature co-fired ceramics LiMg1-xAxPO4 (A = Mn, Ca, 0.02 ≤ x ≤ 0.08)

Abstract Novel low-firing microwave dielectric ceramics LiMg1-xAxPO4 (A = Mn, Ca, 0.02 ≤ x ≤ 0.08) with orthorhombic olivine structure were synthesized using the solid-state reaction method. The effects of Mn2+ and Ca2+ on the phase composition, sintering behaviors and microwave dielectric properties of LiMgPO4 ceramics were studied in detail. To some extent, Mn2+ and Ca2+ reduced the sintering temperature of LiMgPO4 ceramics and improved its properties. Both systems exhibited excellent comprehensive properties (LiMg0.96Mn0.04PO4: er = 6.54, Q*f = 84,343 GHz, τf = −44.9 ppm/°C, Ts (optimum sintering temperature) = 875 °C; LiMg0.94Ca0.06PO4: er = 6.96, Q*f = 88,968 GHz, τf = −44.7 ppm/°C, Ts = 800 °C). In conclusions, novel systems in this work would be promising candidates for low-temperature cofired ceramic (LTCC) applications.

• Publication year

  2019

• Venue

  Materials letters (General ed.)

• Publication date

  2019-11-15

• Fields of study

  Materials Science

• Identifiers
  DOI 10.1016/J.MATLET.2019.126565
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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