Unprecedented sensing of interlayer defects in three-dimensionally printed polymer by capacitance measurement

@article{Chakraborty2018UnprecedentedSO,
  title={Unprecedented sensing of interlayer defects in three-dimensionally printed polymer by capacitance measurement},
  author={Patatri Chakraborty and Guanglei Zhao and Chi Zhou and D. D. L. Chung},
  journal={Smart Materials and Structures},
  year={2018},
  volume={27}
}
Interlayer defects in a three-dimensionally (3D) printed structure are expected from the residual stress and commonly observed warpage, but their detection has been challenging and elusive. They are to be distinguished from intralayer defects (e.g., discernible voids), which can be quite easily detected. Interlayer defects in the form of local inadequate interlayer bonding in a 3D-printed polymer structure have been unprecedentedly shown in this work to be detectible by capacitance measurement… 
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