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dc.contributor.authorBlonder, Gregen_US
dc.date.accessioned2018-10-31T13:51:47Z
dc.date.available2018-10-31T13:51:47Z
dc.date.issued2017
dc.identifier.citationGreg Blonder. 2017. "Non-linear temperature-dependent curvature of a Phase Change Composite Bimorph beam." arXiv preprint arXiv:1702.03243
dc.identifier.urihttps://hdl.handle.net/2144/31706
dc.description.abstractBimorph films curl in response to temperature. The degree of curvature typically varies linearly with temperature and in proportion to the difference in thermal expansion of the individual layers. In many applications, such as controlling a thermostat, this gentle linear behavior is acceptable. In other cases, such as opening or closing a valve or latching a deployable column into place, an abrupt motion at a fixed temperature is preferred. To achieve this non-linear motion, we describe the fabrication and performance of a new bilayer structure we call 'Phase Change Composite Bimorph (PCBM)'. In a PCBM, one layer in the bimorph is a composite containing small inclusions of phase change materials. When the inclusions melt, their large (generally positive and >1%) expansion coefficient induces a strong, reversible step function jump in bimorph curvature. The measured jump amplitude and thermal response is consistent with theory.en_US
dc.relation.ispartofarXiv preprint arXiv:1702.03243
dc.subjectScience & technologyen_US
dc.subjectMaterials science, multidisciplinaryen_US
dc.subjectMaterials scienceen_US
dc.subjectBilayeren_US
dc.subjectPhase-changeen_US
dc.subjectMicrospheresen_US
dc.subjectThermal curvatureen_US
dc.subjectActuatorsen_US
dc.subjectThermal-energy storageen_US
dc.titleNon-linear temperature-dependent curvature of a Phase Change Composite Bimorph beamen_US
dc.typeArticleen_US
dc.description.versionFirst author draften_US
pubs.elements-sourcemanual-entryen_US
pubs.notesEmbargo: No embargoen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, College of Engineeringen_US
pubs.organisational-groupBoston University, College of Engineering, Department of Mechanical Engineeringen_US


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