EVALUATION OF BORON NITRIDE NANOBARB AS THERMAL CONDUCTIVITY ENHANCERS TO CNT COMPOSITES

dc.contributor.advisorLuhrs, Claudia C.
dc.contributor.authorClark-Johnson, Lauren P.
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)
dc.contributor.secondreaderGrbovic, Dragoslav
dc.date.accessioned2022-11-17T20:54:54Z
dc.date.available2022-11-17T20:54:54Z
dc.date.issued2022-09
dc.description.abstractBoron nitride nanobarbs (BNNB) is a new material that is a powder version of Boron nitride nanotubes (BNNT). Studies have shown BNNT to be electrically insulating and thermally conductive. BNNT are difficult to incorporate in composite materials due to their tendencies to agglomerate. BNNBs have a shorter nanostructure, which makes them easier to incorporate in epoxy mixtures. This study examines the thermal conductive properties of BNNB in carbon nanotube (CNT) composites. In this study thermally conductive composites were created using various loadings of BNNB in a 0.5 weight percent CNT-Epoxy mixture. The specimens were tested for electrical conductivity and thermal conductivity using two methods. The electrical conductivity data collected concluded that at higher loadings of BNNB, the percolation limit could be reached. The thermal conductivity data from the forward looking infrared (FLIR) camera were inconclusive due to methodology issues; however, the results from the thermocouple data concluded that an increase in BNNB loading lead to an increase in thermal conductivity at a steady state temperature of 50C.en_US
dc.description.distributionstatementApproved for public release. Distribution is unlimited.en_US
dc.description.serviceLieutenant, United States Navyen_US
dc.identifier.curriculumcode570, Naval/Mechanical Engineering
dc.identifier.thesisid36748
dc.identifier.urihttps://hdl.handle.net/10945/71051
dc.publisherMonterey, CA; Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.subject.authorboron nitride nanobarbsen_US
dc.subject.authorBNNBen_US
dc.subject.authorboron nitride nanotubesen_US
dc.subject.authorBNNTen_US
dc.subject.authorforward looking infrareden_US
dc.subject.authorFLIRen_US
dc.subject.authorcarbon nanotubeen_US
dc.subject.authorCNTen_US
dc.titleEVALUATION OF BORON NITRIDE NANOBARB AS THERMAL CONDUCTIVITY ENHANCERS TO CNT COMPOSITESen_US
dc.typeThesisen_US
dspace.entity.typePublication
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.nameMaster of Science in Mechanical Engineeringen_US
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