Graduate Thesis Or Dissertation
 

High Fidelity 3-Omega Probe Installation and Verification in a Scanning Electron Microscope

Public Deposited

Downloadable Content

Download PDF
Request Accessible Version
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/g445cm994

Descriptions

Attribute NameValues
Creator
Abstract
  • There are efforts underway at Idaho National Laboratory to design, modify, and implement an array of techniques into a nuclear material ready Scanning Electron Microscope (SEM) to accelerate comprehensive characterization of the physical properties and microstructures of irradiated fuels and materials. The goals of adding a micro four-point probe (M4PP) to a SEM were to conduct thermal conductivity analysis in-situ via the 3ω method. The 3ω method is an AC-modulation method that utilizes a ω frequency driven through a test specimen, in combination with joule heating at 2ω, to measure an excited voltage at the third harmonic that is then correlated to the thermal conductivity. The objective of adding the probe to a nuclear ready SEM were to conduct benchtop preparation by assembling the equipment and verifying signal, develop an automated LabView code to provide real-time analysis and enhance reproducibility, install the equipment into a clean SEM for shakedown testing, and finally examine the three material sections of chrome coated zirconium. The results this study is the demonstration that the 3ω method can be utilized in combination with a M4PP to measure the thermal conductivity of metallic samples in-situ of SEM analysis.
Contributor
License
Resource Type
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Rights Statement
Funding Statement (additional comments about funding)
  • This project was funded as Laboratory Directed Research and Development project at Idaho National Laboratory.
Publisher
Peer Reviewed
Language
Accessibility Feature

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details PowersRobertD2020.pdf 2020-12-21 Public Download