Weibull Analysis of Electrical Breakdown Strength as an Effective Means of Evaluating Elastomer Thin Film Quality

Abstract

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Insights into the Complex Prebreakdown Actuation of Silicone Elastomers and its Influence on Breakdown Behavior

“…This actuation is not observed with wire or sputter-coated electrodes, or in sample 3, which mainly undergoes film stretching, as discussed before, and does not perform any other actuation processes. We hypothesize that small variations in the sample quality also plays an important role in the prebreakdown actuation process, as also pointed out by Silau et al from another experimental study . When wire electrodes are used, all samples are sputter-coated with gold.…”

Insights into the Complex Prebreakdown Actuation of Silicone Elastomers and its Influence on Breakdown Behavior

“…This actuation is not observed with wire or sputter-coated electrodes, or in sample 3, which mainly undergoes film stretching, as discussed before, and does not perform any other actuation processes. We hypothesize that small variations in the sample quality also plays an important role in the prebreakdown actuation process, as also pointed out by Silau et al from another experimental study . When wire electrodes are used, all samples are sputter-coated with gold.…”

Self‐Strengthening Dielectric Elastomer of Triblock Copolymer with Significantly Improved Electromechanical Performance under Low Voltage

“…The dielectric breakdown strength ( E b ) of the SPSTR treated SBAS films was measured by a house‐made device (Figure S11, Supporting Information), and the data were evaluated by Weibull analysis ( Figure a,b; Table S2, Supporting Information). [ 50 ] Surprisingly, the E b is significantly strengthened with increasing pre‐stretched ratios (Figure 4c). The E b of pristine SBAS film is about 42.5 V µm −1 , and steadily increases up to 85.7 V µm −1 at the pre‐stretch ratio 3.0.…”

Fully 3D printed dielectric elastomer actuators based on silicone and its composites

“…The breakdown strength is a very important factor for dielectric elastomers, because it determines the upper limit of the working voltage. The Weibull distribution is used to evaluate the likelihood of breakdown of silicone elastomer sample 40 . Figure 3C shows that the silicone elastomer with 1 wt% THI‐VEX displays a narrower distribution of the breakdown field strength.…”

Insights into the Complex Prebreakdown Actuation of Silicone Elastomers and its Influence on Breakdown Behavior

“…This actuation is not observed with wire or sputter-coated electrodes, or in sample 3, which mainly undergoes film stretching, as discussed before, and does not perform any other actuation processes. We hypothesize that small variations in the sample quality also plays an important role in the prebreakdown actuation process, as also pointed out by Silau et al from another experimental study . When wire electrodes are used, all samples are sputter-coated with gold.…”

Self‐Strengthening Dielectric Elastomer of Triblock Copolymer with Significantly Improved Electromechanical Performance under Low Voltage

“…The dielectric breakdown strength ( E b ) of the SPSTR treated SBAS films was measured by a house‐made device (Figure S11, Supporting Information), and the data were evaluated by Weibull analysis ( Figure a,b; Table S2, Supporting Information). [ 50 ] Surprisingly, the E b is significantly strengthened with increasing pre‐stretched ratios (Figure 4c). The E b of pristine SBAS film is about 42.5 V µm −1 , and steadily increases up to 85.7 V µm −1 at the pre‐stretch ratio 3.0.…”

Fully 3D printed dielectric elastomer actuators based on silicone and its composites

“…The breakdown strength is a very important factor for dielectric elastomers, because it determines the upper limit of the working voltage. The Weibull distribution is used to evaluate the likelihood of breakdown of silicone elastomer sample 40 . Figure 3C shows that the silicone elastomer with 1 wt% THI‐VEX displays a narrower distribution of the breakdown field strength.…”

Insights into the Complex Prebreakdown Actuation of Silicone Elastomers and its Influence on Breakdown Behavior

“…This actuation is not observed with wire or sputter-coated electrodes, or in sample 3, which mainly undergoes film stretching, as discussed before, and does not perform any other actuation processes. We hypothesize that small variations in the sample quality also plays an important role in the prebreakdown actuation process, as also pointed out by Silau et al from another experimental study . When wire electrodes are used, all samples are sputter-coated with gold.…”

Self‐Strengthening Dielectric Elastomer of Triblock Copolymer with Significantly Improved Electromechanical Performance under Low Voltage

“…The dielectric breakdown strength ( E b ) of the SPSTR treated SBAS films was measured by a house‐made device (Figure S11, Supporting Information), and the data were evaluated by Weibull analysis ( Figure a,b; Table S2, Supporting Information). [ 50 ] Surprisingly, the E b is significantly strengthened with increasing pre‐stretched ratios (Figure 4c). The E b of pristine SBAS film is about 42.5 V µm −1 , and steadily increases up to 85.7 V µm −1 at the pre‐stretch ratio 3.0.…”

Fully 3D printed dielectric elastomer actuators based on silicone and its composites

“…The breakdown strength is a very important factor for dielectric elastomers, because it determines the upper limit of the working voltage. The Weibull distribution is used to evaluate the likelihood of breakdown of silicone elastomer sample 40 . Figure 3C shows that the silicone elastomer with 1 wt% THI‐VEX displays a narrower distribution of the breakdown field strength.…”