Low-temperature sintering and microwave dielectric properties of ZnZrNb2O8 ceramics with BaCu(B2O5) addition
Source abstract
Abstract
Abstract The effects of BaCu(B 2 O 5 ) doping on the phase structure, sintering characteristics and microwave dielectric properties of ZnZrNb 2 O 8 ceramics were investigated. Only a single-phase, i.e. ZnZrNb 2 O 8 is formed when BaCu(B 2 O 5 ) content is ≤3 wt%. Small amount of Ba 3 Nb 8 O 21 and BaNb 2 O 6 in second phases occurred with further increase in BaCu(B 2 O 5 ) content. The addition of BaCu(B 2 O 5 ) can effectively lower the sintering temperature of ZnZrNb 2 O 8 ceramics from 1200 to 950 °C due to liquid phase sintering. ZnZrNb 2 O 8 ceramics with 3 wt% BaCu(B 2 O 5 ) sintered at 950 °C for 4 h could reach dense structure and exhibit good microwave dielectric properties such as e r =28.4, Q × f= 56,720 GHz and τ f =−53 ppm/°C. In addition, the ceramics are compatible with Ag electrodes, and therefore, suitable for low-temperature co-fired ceramics (LTCC) application.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Microwave Dielectric Ceramics Synthesis · Ferroelectric and Piezoelectric Materials · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
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