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master's thesis
Mjerenje toplinske vodljivosti silicija 3-omega metodom
2018. urn:nbn:hr:166:051571
Ursa, Ivana
University of Split
Faculty of Science
Department of Physics

Cite this document

Ursa, I. (2018). Mjerenje toplinske vodljivosti silicija 3-omega metodom (Master's thesis). Split: University of Split, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:166:051571

Ursa, Ivana. "Mjerenje toplinske vodljivosti silicija 3-omega metodom." Master's thesis, University of Split, Faculty of Science, 2018. https://urn.nsk.hr/urn:nbn:hr:166:051571

Ursa, Ivana. "Mjerenje toplinske vodljivosti silicija 3-omega metodom." Master's thesis, University of Split, Faculty of Science, 2018. https://urn.nsk.hr/urn:nbn:hr:166:051571

Ursa, I. (2018). 'Mjerenje toplinske vodljivosti silicija 3-omega metodom', Master's thesis, University of Split, Faculty of Science, accessed 13 November 2024, https://urn.nsk.hr/urn:nbn:hr:166:051571

Ursa I. Mjerenje toplinske vodljivosti silicija 3-omega metodom [Master's thesis]. Split: University of Split, Faculty of Science; 2018 [cited 2024 November 13] Available at: https://urn.nsk.hr/urn:nbn:hr:166:051571

I. Ursa, "Mjerenje toplinske vodljivosti silicija 3-omega metodom", Master's thesis, University of Split, Faculty of Science, Split, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:166:051571

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Metadata
TitleMjerenje toplinske vodljivosti silicija 3-omega metodom
Title (english)Measurement of thermal conductivity of silicon by 3-omega method
AuthorIvana Ursa
MentorIvica Aviani (mentor)
Committee memberIvica Aviani (predsjednik povjerenstva)
Committee memberPaško Županović (član povjerenstva)
Committee memberAnte Bilušić (član povjerenstva)
GranterUniversity of Split
Faculty of Science
(Department of Physics)
Split
Defense date and country2018-10-12, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract
Cilj ovoga rada bio je uspostaviti tri-omega metodu za mjerenje toplinske vodljivosti te testirati metodu mjerenjem toplinske vodljivost silicija. U tu svrhu izradili smo eksperimentalni postav, što uključuje izradu Wheastoneovog mosta i grijača uzorka, postavili smo platinski termometar te napisali i testirali programe za mjerenje temperaturne ovisnosti otpora metalne trake i toplinske vodljivosti silicija. Izmjerili smo temperaturni koeficijent otpora metalne trake i frekventnu karakteristiku trećeg harmonika za dvije efektivne vrijednosti napona izvora od 0,75 i 0,5 V te na dvije temperature 26 ˚C i 47 ˚C. koju smo stabilizirali grijanjem pomoću grijača i strujnog izvora. Izmjerene vrijednosti koeficijenta toplinske vodljivosti uzorka silicija na sobnoj temperaturi za efektivnu vrijednost napona izvora od 0,5 V iznose oko 132 W/m∙K, a za napon izvora od 0,75 V su nešto više i iznose oko 175 W/m∙K te su u dobrom slaganju s vrijednostima iz literature. Na temperaturi od 47 ˚C toplinska vodljivost je nešto manja i iznosi oko 167 W/m∙K, što je u skladu s očekivanjima jer toplinska vodljivost pada s povišenjem temperature.
Abstract (english)
The aim of this thesis was to establish the tri-omega method for measuring thermal conductivity as well as to test the method by measuring the thermal conductivity of the silicon. For that purpose the experimental setup, which includes the Wheatstone bridge and the sample heater with platinum thermometer, was constructed. The program for measurement the temperature dependence of the metal line resistance and the thermal conductivity of silicon was written and tested. We measured the temperature coefficient of the metal line resistance and the frequency characteristic of the third harmonic for the effective source voltages of 0.75 and 0.5 V, and for the temperatures of 26 ˚C and 47 ˚C. We found that the thermal conductivity of the silicon sample at room temperature, for effective source voltage 0.5 V, is about 132 W / m∙K and for 0.75 V about 175 W / m∙K. These values are in a good agreement with the literature. At 47 °C, the heat conductivity is smaller, about 167 W / m∙K, as expected because the thermal conductivity decreases with temperature.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:166:051571
Study programmeTitle: Physics; specializations in: major in teaching, major in Astrophysics, major in Biophysics, major in Enviromental physics, major in Computational physics
Course: major in Computational physics
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra fizike (magistar/magistra fizike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2019-04-17
Terms of useLicence In copyright icon
Created on2018-12-07 15:42:07