Cold‐sintered C0G multilayer ceramic capacitors

Abstract

Multilayer ceramic capacitors (MLCCs) based on (Bi0.95Li0.05)(V0.9Mo0.1)O4‐Na2Mo2O7 (BLVMO‐NMO), with εr = 39, temperature coefficient of capacitance, TCC ≈ ±0.01%, and tan δ = 0.01 at 1 MHz, are successfully fabricated by a cold‐sintering process at 150 °C. Scanning electron microscopy of the MLCCs combined with EDS mapping, X‐ray diffraction, and Raman spectroscopy reveals well‐laminated and undistorted dielectric layers composed of BLVMO and NMO discrete phases separated by Ag internal electrodes. Prototypes show comparable properties to C0G MLCCs (TCC = ±30 ppm °C−1 from −55 to +125 °C) currently commercially fabricated at 1100 °C using CaZrO3‐based dielectrics with glass sintering aids and Ni internal electrodes.

Metadata

Item Type:	Article
Authors/Creators:	Wang, D. https://orcid.org/0000-0001-6957-2494 Zhou, D. Song, K. Feteira, A. Randall, C.A. Reaney, I.M. https://orcid.org/0000-0003-3893-6544
Copyright, Publisher and Additional Information:	© 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is an author-produced version of a paper subsequently published in Advanced Electronic Materials. Uploaded in accordance with the publisher's self-archiving policy.
Keywords:	capacitors; cold sintering; microwave dielectric ceramics; MLCCs
Dates:	Published: 9 July 2019 Published (online): 30 April 2019
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	14 May 2019 13:46
Last Modified:	03 Dec 2021 08:28
Status:	Published
Publisher:	Wiley
Refereed:	Yes
Identification Number:	10.1002/aelm.201900025
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:146042

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Cold‐sintered C0G multilayer ceramic capacitors

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