Flexible, stretchable, and wearable strain sensors have attracted significant attention for their potential applications in human movement detection and recognition. Here, we report a highly stretchable and flexible strain sensor based on a single-walled carbon nanotube (SWCNTs)/carbon black (CB) synergistic conductive network. The fabrication, synergistic conductive mechanism, and characterization of the sandwich-structured strain sensor were investigated. The experimental results show that the device exhibits high stretchability (120%), excellent flexibility, fast response (∼60 ms), temperature independence, and superior stability and reproducibility during ∼1100 stretching/releasing cycles. Furthermore, human activities such as the bending of a finger or elbow and gestures were monitored and recognized based on the strain sensor, indicating that the stretchable strain sensor based on the SWCNTs/CB synergistic conductive network could have promising applications in flexible and wearable devices for human motion monitoring.
Bioactive composites, where the deleterious reactions between hydroxyapatite and the composite matrix (in this case zirconia) are kinetically inhibited by employing a super‐fast consolidation technique, spark plasma sintering (SPS), are reported. The composite materials (see Figure) are shown to be 5–7 times stronger and 4–7 times tougher than monolithic hydroxyapatite ceramics.
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