Systems and methods provide for forming layered structures. Textured tapes may be fabricated, having cast and/or embossed patterns that provide for desired flow characteristics in an assembly of stacked, rolled, and/or otherwise assembled tapes. In some cases, shear thinning materials may be formed
Systems and methods provide for forming layered structures. Textured tapes may be fabricated, having cast and/or embossed patterns that provide for desired flow characteristics in an assembly of stacked, rolled, and/or otherwise assembled tapes. In some cases, shear thinning materials may be formed into textured tapes using localized shear stress to induce shear thinning during a pattern formation. A pattern may be maintained after removal of the shear force due to the high viscosity of the material at low shear stress.
대표청구항▼
1. An apparatus for casting a textured tape, the apparatus comprising: a hopper configured to contain a material to be formed into the textured tape as the material exits the hopper;a carrier configured to carry a tape of the material as it exits the hopper;a toothed blade defining a gap through whi
1. An apparatus for casting a textured tape, the apparatus comprising: a hopper configured to contain a material to be formed into the textured tape as the material exits the hopper;a carrier configured to carry a tape of the material as it exits the hopper;a toothed blade defining a gap through which the material exits the hopper onto the carrier, the gap defined at least in part by: a vertical distance from the carrier to a bottom edge of the toothed blade, the vertical distance defining a floor thickness of the cast tape; anda gap width that defines a tape width of the cast tape; the toothed blade having: a plurality of teeth, each tooth having a tooth shape that at least partially defines a channel shape in the cast tape, anda space between adjacent teeth that at least partially defines a wall shape of a wall in the cast tape; anda motion control apparatus configured to move at least one of the toothed blade and carrier in a longitudinal direction, wherein the motion control apparatus is further configured to oscillate at least one of the toothed blade and the carrier at an amplitude. 2. An apparatus for casting a textured tape, the apparatus comprising: a hopper configured to contain a material to be formed into the textured tape as the material exits the hopper;a carrier configured to carry a tape of the material as it exits the hopper;a toothed blade defining a gap through which the material exits the hopper onto the carrier, the gap defined at least in part by: a vertical distance from the carrier to a bottom edge of the toothed blade, the vertical distance defining a floor thickness of the cast tape; anda gap width that defines a tape width of the cast tape;the toothed blade having: a plurality of teeth, each tooth having a tooth shape that at least partially defines a channel shape in the cast tape, anda space between adjacent teeth that at least partially defines a wall shape of a wall in the cast tape; anda motion control apparatus configured to move at least one of the toothed blade and carrier in a longitudinal direction, wherein the gap width is greater than ten times a height of the space between at least two adjacent teeth. 3. An apparatus for casting a textured tape, the apparatus comprising: a hopper configured to contain a material to be formed into the textured tape as the material exits the hopper;a carrier configured to carry a tape of the material as it exits the hopper;a toothed blade defining a gap through which the material exits the hopper onto the carrier, the gap defined at least in part by: a vertical distance from the carrier to a bottom edge of the toothed blade, the vertical distance defining a floor thickness of the cast tape; anda gap width that defines a tape width of the cast tape;the toothed blade having: a plurality of teeth, each tooth having a tooth shape that at least partially defines a channel shape in the cast tape, anda space between adjacent teeth that at least partially defines a wall shape of a wall in the cast tape; anda motion control apparatus configured to move at least one of the toothed blade and carrier in a longitudinal direction, further comprising an apparatus disposed above the carrier and downstream of the gap, the apparatus configured to induce hardening of the material in the cast tape via at least one of: exposing the tape to light;depositing a powder on the tape; andspraying a liquid onto the tape. 4. The apparatus of claim 1, wherein the amplitude is less than at least one of: a width of a channel defined by at least one tooth shape; anda width of a wall defined by at least one space between adjacent teeth. 5. The apparatus of claim 4, wherein the amplitude is less than 10% of the width of the wall. 6. The apparatus of claim 1, wherein the amplitude is less than 2mm. 7. The apparatus of claim 1, wherein the gap width is greater than ten times a height of the space between at least two adjacent teeth. 8. The apparatus of claim 7, wherein: at least one space between adjacent teeth includes a space height that is greater than the space width;and the amplitude is less than at least one of: a width of a channel defined by at least one tooth shape; anda width of a wall defined by at least one space between adjacent teeth. 9. The apparatus of claim 1, wherein at least one space between adjacent teeth includes a space height that is greater than the space width. 10. The apparatus of claim 1, wherein the space between at least two adjacent teeth has a height that is greater than the vertical distance. 11. The apparatus of claim 1, wherein at least a portion of the carrier includes a top surface that is textured. 12. The apparatus of claim 2, wherein the space between at least two adjacent teeth has a height that is greater than the vertical distance. 13. The apparatus of claim 2, wherein at least a portion of the carrier includes a top surface that is textured. 14. The apparatus of claim 2, wherein the motion control apparatus is further configured to move the at least one of the toothed blade and carrier at a velocity in the longitudinal direction that varies across the gap width. 15. The apparatus of claim 2, wherein at least one tooth includes an edge that is off-vertical with respect to the bottom edge of the tooth. 16. The apparatus of claim 3, wherein the space between at least two adjacent teeth has a height that is greater than the vertical distance. 17. The apparatus of claim 3, wherein at least one space between adjacent teeth includes a space height that is greater than the space width. 18. The apparatus of claim 3, wherein the gap width is greater than ten times a height of the space between at least two adjacent teeth. 19. The apparatus of claim 3, wherein the motion control apparatus is further configured to oscillate at least one of the toothed blade and the carrier at an amplitude. 20. The apparatus of claim 3, wherein at least a portion of the carrier includes a top surface that is textured.
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