Impact of bending speed and setup on flex cracks in multilayer ceramic capacitors

Caroline Andersson, Ole Kristensen, Elise Varescon, Francesco Iannuzzo

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2 Citations (Scopus)

Abstract

A comparison of bending speed and experimental setups using 3-point or 4-point bending for introduction of flex cracks into multilayer ceramic capacitors (MLCCs) in a controlled manner is presented. The impact of bending speed and corresponding strain rates on the formed flex cracks detected by X-ray imaging and optical microscopy images of cross-sectioned MLCCs are examined. Furthermore, the critical strain levels of cracked MLCCs mounted in different orientations as compared to the applied strain are compared for quick and standard bending as well as for a 3-point and 4-point bending test setup.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED)
PublisherIEEE Press
Publication dateAug 2017
ISBN (Electronic)978-1-5090-0409-6
DOIs
Publication statusPublished - Aug 2017
Event2017 IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED) - Tinos, Greece
Duration: 29 Aug 20171 Sept 2017

Conference

Conference2017 IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED)
Country/TerritoryGreece
CityTinos
Period29/08/201701/09/2017

Keywords

  • Capacitors
  • Ceramics
  • Displacement measurement
  • Fault diagnosis
  • Fault location
  • Materials reliability
  • Microscopy
  • Strain measurement
  • X-ray detection

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