Thermal conductivity versus depth profiling of inhomogeneous materials using the hot disc technique
Transient measurements of thermal conductivity are performed with hot disc sensors on samples having a thermal conductivity variation adjacent to the sample surface. A modified computational approach is introduced, which provides a method of connecting the time-variable to a corresponding depth-posi...
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| Veröffentlicht in: | Review of scientific instruments 2016-07, Vol.87 (7), p.074901-074901 |
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| container_issue | 7 |
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| container_title | Review of scientific instruments |
| container_volume | 87 |
| creator | Sizov, A. Cederkrantz, D. Salmi, L. Rosén, A. Jacobson, L. Gustafsson, S. E. Gustavsson, M. |
| description | Transient measurements of thermal conductivity are performed with hot disc sensors on samples having a thermal conductivity variation adjacent to the sample surface. A modified computational approach is introduced, which provides a method of connecting the time-variable to a corresponding depth-position. This allows highly approximate—yet reproducible—estimations of the thermal conductivity vs. depth. Tests are made on samples incorporating different degrees of sharp structural defects at a certain depth position inside a sample. The proposed methodology opens up new possibilities to perform non-destructive testing; for instance, verifying thermal conductivity homogeneity in a sample, or estimating the thickness of a deviating zone near the sample surface (such as a skin tumor), or testing for presence of other defects. |
| doi_str_mv | 10.1063/1.4954972 |
| format | Article |
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E.</creatorcontrib><creatorcontrib>Gustavsson, M.</creatorcontrib><title>Thermal conductivity versus depth profiling of inhomogeneous materials using the hot disc technique</title><title>Review of scientific instruments</title><addtitle>Rev Sci Instrum</addtitle><description>Transient measurements of thermal conductivity are performed with hot disc sensors on samples having a thermal conductivity variation adjacent to the sample surface. A modified computational approach is introduced, which provides a method of connecting the time-variable to a corresponding depth-position. This allows highly approximate—yet reproducible—estimations of the thermal conductivity vs. depth. Tests are made on samples incorporating different degrees of sharp structural defects at a certain depth position inside a sample. The proposed methodology opens up new possibilities to perform non-destructive testing; for instance, verifying thermal conductivity homogeneity in a sample, or estimating the thickness of a deviating zone near the sample surface (such as a skin tumor), or testing for presence of other defects.</description><subject>Contact impedance</subject><subject>Defects</subject><subject>Depth profiling</subject><subject>Depth profiling techniques</subject><subject>Destructive testing</subject><subject>diffusivity</subject><subject>Diseases and conditions</subject><subject>Finite-element analysis</subject><subject>Fysik</subject><subject>heat</subject><subject>Heat conductivity</subject><subject>Heat transfer</subject><subject>Instruments & Instrumentation</subject><subject>Integral calculus</subject><subject>Natural materials</subject><subject>Nondestructive testing</subject><subject>Nondestructive testing techniques</subject><subject>Physical Sciences</subject><subject>Physics</subject><subject>Scientific apparatus & instruments</subject><subject>Skin</subject><subject>solids</subject><subject>strip method</subject><subject>Thermal conductivity</subject><subject>Thermodynamic properties</subject><issn>0034-6748</issn><issn>1089-7623</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>D8T</sourceid><recordid>eNp90U-L1DAYBvAgijuOHvwCUvDiCl3zt02Py-KqsODB9RzS5M00S9vUJB3Zb2_GGVcQ1l4C5ceTvO-D0GuCLwhu2AdywTvBu5Y-QRuCZVe3DWVP0QZjxuum5fIMvUjpDpdPEPIcndGWt0JIvkHmdoA46bEyYbaryX7v8321h5jWVFlY8lAtMTg_-nlXBVf5eQhT2MEMoYBJZ4hej6la0wHkAaoh5Mr6ZKoMZpj9jxVeomeuGHh1Orfo-_XH26vP9c3XT1-uLm9qIxjNde80E1oAlppqwk1nRdcz61pMuZWES05tYxtCnNamwKZzGDR3phHSEivYFn075qafsKy9WqKfdLxXQXsVIYGOZlBm0ONUxlMJFJG0lS02ylFgivdtp2RHiGK0Z1RCY8G1JbV-NHW3Lqr82q2HNMoZkbL4d0df9laGT1lNZRswjvr3zsqlWLJSUOFb9PYfehfWOJcdKUooaVrJBC7q_KhMDClFcA9PIFgd-ldEnfov9s0pce0nsA_yT-EFvD9NY3zW2Yf5v2mP4n2If6FarGO_AIEryAk</recordid><startdate>20160701</startdate><enddate>20160701</enddate><creator>Sizov, A.</creator><creator>Cederkrantz, D.</creator><creator>Salmi, L.</creator><creator>Rosén, A.</creator><creator>Jacobson, L.</creator><creator>Gustafsson, S. E.</creator><creator>Gustavsson, M.</creator><general>American Institute of Physics</general><scope>AJDQP</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><scope>ADTPV</scope><scope>AOWAS</scope><scope>F1U</scope><scope>ABBSD</scope><scope>D8T</scope><scope>F1S</scope><scope>ZZAVC</scope><orcidid>https://orcid.org/0000-0003-2826-8423</orcidid><orcidid>https://orcid.org/0000-0003-0675-9969</orcidid></search><sort><creationdate>20160701</creationdate><title>Thermal conductivity versus depth profiling of inhomogeneous materials using the hot disc technique</title><author>Sizov, A. ; Cederkrantz, D. ; Salmi, L. ; Rosén, A. ; Jacobson, L. ; Gustafsson, S. 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| source | American Institute of Physics (AIP) Journals; Alma/SFX Local Collection; SWEPUB Freely available online |
| subjects | Contact impedance Defects Depth profiling Depth profiling techniques Destructive testing diffusivity Diseases and conditions Finite-element analysis Fysik heat Heat conductivity Heat transfer Instruments & Instrumentation Integral calculus Natural materials Nondestructive testing Nondestructive testing techniques Physical Sciences Physics Scientific apparatus & instruments Skin solids strip method Thermal conductivity Thermodynamic properties |
| title | Thermal conductivity versus depth profiling of inhomogeneous materials using the hot disc technique |
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