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

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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 uF) 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 ... continued below

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Wereszczak, A. A.; Riester, L. & Breder, K. April 3, 2000.

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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 uF) 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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OSTI as DE00755654

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  • 2000 Future Car Congress, Arlington, VA (US), 04/03/2000--04/06/2000

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  • Report No.: ORNL/CP-106264
  • Grant Number: AC05-00OR22725
  • Office of Scientific & Technical Information Report Number: 755654
  • Archival Resource Key: ark:/67531/metadc711947

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  • April 3, 2000

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  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 19, 2016, 6:46 p.m.

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Wereszczak, A. A.; Riester, L. & Breder, K. In-Situ Mechanical Property Evaluation of Dielectric Ceramics in Multilayer Capacitors, article, April 3, 2000; Tennessee. (digital.library.unt.edu/ark:/67531/metadc711947/: accessed May 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.