Methods for forming auxetic, zero, and near-zero poisson's ratio materials and materials formed thereby
AssigneeUniversity of South Carolina
InventorsMONIROSADAT SADATI, SEPIDEH NOROUZI, NADER TAHERI-QAZVINI, JOSE ADRIAN MARTINEZ GONZALEZ
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Abstract
Synthetic two- or three-dimensional structures are described that include directional negative, near-zero, or zero Poisson ratio. Methods for forming the structures are also described. Disclosed structures mimic disclination networks as occur in soft cubic blue phase high chirality liquid crystals. Disclination networks can be based upon BPI or BPII phases and can include modifications as compared to an undistorted bulk blue phase crystal.
Claims20
A method for forming a structure, comprising:
- mapping a network of disclination lines of a blue phase liquid crystal;
- scaling up the mapped network;
- and
- manufacturing a structure, the structure comprising the scaled-up mapped network, the structure exhibiting auxetic, zero Poisson's ratio, or near-zero Poisson's ratio characteristics.
A two- or three-dimensional network comprising a pattern of connected nodes, each adjacent node being separated from one another by a distance of about 5 micrometers or more, wherein the pattern mimics a disclination pattern of a blue phase crystal, the network exhibiting auxetic, zero Poisson's ratio, or near-zero Poisson's ratio characteristics.
Dependencies are inferred from the claim text.