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dc.contributor.authorWang, Zhi
dc.date.accessioned2021-12-20T20:34:42Z
dc.date.available2021-12-20T20:34:42Z
dc.date.issued2021-08
dc.identifier.otherWang_cornell_0058O_11282
dc.identifier.otherhttp://dissertations.umi.com/cornell:11282
dc.identifier.urihttps://hdl.handle.net/1813/110476
dc.description61 pages
dc.description.abstractThermal measurement is a critical part of determining the thermal properties of materials. Conventional steady-state thermal conductivity measurements have strict requirements on the sample dimensions and states, making it hard to measure most unconventional samples. Laser flash analysis (LFA) is a convenient and reliable method of determining different materials' thermal diffusivity and thermal conductivity. Apart from LFA, FDTR (Frequency Domain Thermoreflectance) is a much more powerful tool for thermal measurements, where samples with almost all dimensions and states can be measured. FDTR is thermal property microscopy that utilizes two lasers (pump and probe lasers) to measure the samples' thermal properties. The periodically modulated pump laser locally heats the sample. The probe laser detects the surface reflectivity of the sample, which can be used to calculate the thermal properties of the sample with models. Instead of only measuring the sample's thermal conductivity, the FDTR system can measure up to two properties at once – including volumetric heat capacity, thermal conductivity, thickness, interfacial conductivity, and the anisotropic ratio of thermal conductivity of the sample. This thesis demonstrates how LFA works and how it conducts measurements for polymeric composites and polymer blend samples. Also, this thesis concludes on how to set up an FDTR system and how it works on thermal measurements.
dc.language.isoen
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectFDTR
dc.subjectLaser Flash
dc.subjectThermal Measurement
dc.titleTHERMAL MEASUREMENTS USING LASER FLASH ANALYSIS AND FREQUENCY-DOMAIN THERMOREFLECTANCE
dc.typedissertation or thesis
thesis.degree.disciplineMaterials Science and Engineering
thesis.degree.grantorCornell University
thesis.degree.levelMaster of Science
thesis.degree.nameM.S., Materials Science and Engineering
dc.contributor.chairTian, Zhiting
dc.contributor.committeeMemberSilberstein, Meredith
dcterms.licensehttps://hdl.handle.net/1813/59810
dc.identifier.doihttps://doi.org/10.7298/2q1p-rr18


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