In-Situ Mechanical Property Evaluation of Dielectric Ceramics in Multilayer Capacitors

Paper #:
  • 2000-01-1535

Published:
  • 2000-04-02
Citation:
Wereszczak, A., Riester, L., and Breder, K., "In-Situ Mechanical Property Evaluation of Dielectric Ceramics in Multilayer Capacitors," SAE Technical Paper 2000-01-1535, 2000, https://doi.org/10.4271/2000-01-1535.
Pages:
8
Abstract:
The Young's modulus, hardness, and fracture toughness of barium titanate dielectric ceramics in three commercially available multilayer capacitors (MLCs) were measured in-situ using indentation and a mechanical properties microprobe. The three MLCs were equivalent in size (0805), capacitance (0.1 μF) and dielectric type (X7R). The Young's modulus and hardness of the dielectric ceramics in the three MLCs were similar, while there were statistically significant differences in their fracture toughnesses. The results provide insight into the assessment of MLC mechanical reliability, and show that equivalent electrical MLC rating is not necessarily a guarantee that the dielectric ceramics in them will exhibit equivalent mechanical performance.
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