Ultra-light micro-lattices and a method for forming the same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-018/16
C23C-018/32
G03F-007/00
출원번호
US-0201344
(2016-07-01)
등록번호
US-9938623
(2018-04-10)
발명자
/ 주소
Schaedler, Tobias A.
Jacobsen, Alan J.
Carter, William
Roper, Christopher
출원인 / 주소
HRL Laboratories, LLC
대리인 / 주소
Tope-McKay & Associates
인용정보
피인용 횟수 :
0인용 특허 :
17
초록▼
The present invention relates to a micro-lattice and, more particularly, to an ultra-light micro-lattice and a method for forming the same. The micro-lattice is a cellular material formed of interconnected hollow tubes. The cellular material has a relative density in a range of 0.001% to 0.3%, and a
The present invention relates to a micro-lattice and, more particularly, to an ultra-light micro-lattice and a method for forming the same. The micro-lattice is a cellular material formed of interconnected hollow tubes. The cellular material has a relative density in a range of 0.001% to 0.3%, and a density of 0.9 mg/cc has been demonstrated. The cellular material also has the ability to recover from a deformation exceeding 50% strain.
대표청구항▼
1. A method for forming a micro-lattice, comprising acts of: forming a micro-lattice template;coating the micro-lattice template with a film of material;removing the micro-lattice template to leave a micro-lattice formed of two or more layers of stacked truss, each layer of truss formed of hollow tu
1. A method for forming a micro-lattice, comprising acts of: forming a micro-lattice template;coating the micro-lattice template with a film of material;removing the micro-lattice template to leave a micro-lattice formed of two or more layers of stacked truss, each layer of truss formed of hollow tubes, the micro-lattice having a relative density in a range of 0.001% to 0.3%. 2. The method as set forth in claim 1, wherein the micro-lattice template is formed by exposing a photomonomer to a collimated UV light through a patterned mask. 3. The method as set forth in claim 2, wherein the micro-lattice template is an interconnected three-dimensional open cellular photopolymer lattice. 4. The method as set forth in claim 3, wherein in coating the micro-lattice template with a film of material, the film of material is a metal, ceramic, or polymer. 5. The method as set forth in claim 4, wherein in removing the micro-lattice template, the micro-lattice template is removed via chemical etching. 6. The method as set forth in claim 5, wherein in coating the micro-lattice template with a film of material, the micro-lattice template is coated using a technique selected from a group consisting of electro-plating, electrophoretic deposition, chemical vapor deposition, physical vapor deposition, atomic layer deposition, solution deposition or sol-gel deposition. 7. The method as set forth in claim 1, wherein the micro-lattice template is an interconnected three-dimensional open cellular photopolymer lattice. 8. The method as set forth in claim 1, wherein in coating the micro-lattice template with a film of material, the film of material is a metal, ceramic, or polymer. 9. The method as set forth in claim 1, wherein the relative density is the density of the micro-lattice divided by the density of the constituent material of the micro-lattice. 10. The method as set forth in claim 1, wherein the hollow tubes are formed by tube walls having a wall thickness between 0.01 and 2 microns. 11. The method as set forth in claim 1, wherein the hollow tubes have a diameter such that the diameter is between 10 and 1000 microns.
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이 특허에 인용된 특허 (17)
Towsley Frank E. (Midland MI), Cellular metal by electrolysis.
Fleming, Robert J.; McGrath, Joseph M.; Lyons, Christopher S., Method of coating microstructured substrates with polymeric layer(s), allowing preservation of surface feature profile.
Van Rijn, Cornelis Johannes Maria; Vogelaar, Laura; Nijdam, Wietze; Barsema, Jonathan Nathaniel; Wessling, Matthias, Method of making a product with a micro or nano sized structure and product.
Schneider, Garrett; Wetzel, Eric D.; Prather, Dennis W., Zero-alignment method for tunable fabrication of three-dimensional photonic crystals by multiple-exposure laser interference using diffraction gratings patterned on a single mask.
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