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Title

Development of a Sample Preparation Technique for Determining the Tensile Strength of Select Layers and Layer Interfaces of TRISO Particles

Organization

Department: Nuclear Eng'g & Health Physics

University: Idaho State University College: Science & Engineering Department: Nuclear Eng'g & Health Physics 23

Document Attachments

Resource	Length	Width	Thickness
Paper	0	0	0

Specimen Elements

City

Pocatello

Coverage

Unknown to Unknown

Creator

Tanner Mauseth

Publisher

Idaho State University

Type

Thesis

Is Complete

No

Date Published

8/2/2023

Archive

digital

City: Pocatello

Degree

Master

Document Attachments

Abstracts

This work describes the development of a capability that enables micrometer scale strength characterization of the buffer, IPyC, and buffer-IPyC nterface of TRISO particles. TRISO particle based fuel is an attractive accident tolerant fuel for advanced reactors. Results are intended to fill a recognized gap in the knowledge base regarding the characteristics of individual layers and interlayer bonds of TRISO particles under development as part of the DOE’s AGR Program. The capability involves the use of FIB micromachining and in-situ SEM tensile testing of TRISO particle tensile samples to achieve results. Baseline materials of copper, molybdenum, silicon, and ZrO2 fuel surrogate TRISO particles are the sole materials tested in this work. The tensile strength results obtained from the baseline materials align with the known literature and the fracture behavior of one TRISO particle sample containing the buffer-IPyC interlayer was obtained. Unirradiated and Irradiated TRISO fuel particles are the subject of future work.