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1. (WO2018227302) LATTICE METAMATERIAL HAVING PROGRAMED THERMAL EXPANSION
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Pub. No.: WO/2018/227302 International Application No.: PCT/CA2018/050723
Publication Date: 20.12.2018 International Filing Date: 14.06.2018
IPC:
G12B 1/02 (2006.01) ,B33Y 10/00 (2015.01)
G PHYSICS
12
INSTRUMENT DETAILS
B
CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
1
Sensitive elements capable of producing movement or displacement for purposes not limited to measurement; Associated transmission mechanisms therefor
02
Compound strips or plates, e.g. bimetallic
[IPC code unknown for B33Y 10]
Applicants:
THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITY [CA/CA]; Office of Sponsored Research 845 Sherbrooke Street West, unit 211 Montreal, Québec H3A 0G4, CA
Inventors:
PASINI, Damiano; CA
ZU, Hang; CA
Agent:
NORTON ROSE FULBRIGHT CANADA LLP S.E.N.C.R.L., S.R.L.; Suite 2500 1 Place Ville-Marie Montréal, Québec H3B 1R1, CA
Priority Data:
62/519,53014.06.2017US
Title (EN) LATTICE METAMATERIAL HAVING PROGRAMED THERMAL EXPANSION
(FR) MÉTAMATÉRIAU EN TREILLIS AYANT UNE DILATATION THERMIQUE PROGRAMMÉE
Abstract:
(EN) A metamaterial having a programmed thermal expansion when exposed to a temperature condition is described. The metamaterial includes a lattice structure composed of a plurality of interconnected unit cells, each of the unit cells comprising two or more bi-material building blocks having first material elements and second material elements. The first material elements have a first coefficient of thermal expansion (CTE) and the second material elements having a second CTE, the first CTE being greater than the second CTE. The bi-material building blocks have a topology with two or more vertices formed at junctions between said first material elements and said second material elements. One of the first material elements interconnects and extends between two of the second material elements at the vertices. The first material elements deforming substantially long a longitudinal axis thereof to cause the bi-material building blocks to be stretch-dominated when deforming in response to temperature changes.
(FR) L'invention concerne un métamatériau ayant une dilatation thermique programmée lorsqu'il est exposé à une condition de température. Le métamatériau comprend une structure en treillis composée d'une pluralité de cellules unitaires interconnectées, chacune des cellules unitaires comprenant deux blocs de construction bi-matériau ou plus ayant des premiers éléments de matériau et des seconds éléments de matériau. Les premiers éléments de matériau ont un premier coefficient de dilatation thermique (CTE) et les seconds éléments de matériau ayant un second CTE, le premier CTE étant supérieur au second CTE. Les blocs de construction bi-matériau ont une topologie à deux sommets ou plus formés au niveau de jonctions entre lesdits premiers éléments de matériau et lesdits seconds éléments de matériau. L'un des premiers éléments de matériau s'interconnecte et s'étend entre deux des seconds éléments de matériau au niveau des sommets. Les premiers éléments de matériau se déforment sensiblement le long d'un axe longitudinal associé pour amener les blocs de construction bi-matériau à être dominés par étirement lorsqu'il se déforme en réponse à des changements de température.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)