Direct ink writing of bismuth molybdate microwave dielectric ceramics

Goulas, Athanasios; Chi-Tangyie, George; Zhang, Shiyu; Wang, Dawei; Ketharam, Annapoorani; Vaidhyanathan, Bala; Reaney, Ian M.; Cadman, Darren; Whittow, William G.; Vardaxoglou, J.C.; Engstrøm, Daniel S.

doi:10.1016/j.ceramint.2020.11.102

Cited by 7 publications

(1 citation statement)

References 44 publications

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“…To further investigate the formation of new phases an XRD analysis was also performed. The XRD of both the raw BMO powder and printed BMO showed that the samples contained α‐, β‐, and γ‐phases of BMO, which are known to have relative permittivities, ε r = 19–40, 18 but the co‐fired multi‐material BMO‐Ag samples exhibited new peaks in the XRD pattern, see Figure 5. As explained earlier, Ag reacted with MoO 3 and Bi 2 O 3 , and then formed new phases of AgBi(MoO 4 ) 2 which supports the EDS results shown above.…”

Section: Resultsmentioning

confidence: 99%

Laser assisted direct ink writing of multi‐material bismuth molybdate—silver artificial dielectrics for radio frequency applications

Gheisari

Zhang

Whittow

et al. 2023

Engineering Reports

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Additive manufacturing of co‐fired low temperature ceramics offers a unique route for the fabrication of novel 3D radiofrequency (RF) and microwave components, embedded electronics and sensors. This study demonstrates the fabrication, materials analysis, and RF characterization of a multi‐material bismuth molybdate—silver (Bi2Mo2O9—Ag) artificial dielectric fabricated by laser assisted direct ink writing. The proposed fabrication technique enables 3D printing of dissimilar materials while minimizing inter‐material diffusion through the liquid phases. The permittivity of the artificial dielectrics increased up to 99% over the investigated frequency range (8–12 GHz) compared to the fabricated pure ceramic sample.

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Section: Resultsmentioning

confidence: 99%