Date Thesis Awarded
4-2024
Access Type
Honors Thesis -- Access Restricted On-Campus Only
Degree Name
Bachelors of Science (BS)
Department
Physics
Advisor
Hannes Schniepp
Committee Members
Jonathan Frey
Jeffery Nelson
Abstract
Diatom-based solutions, composed of their silica cellular walls called frustules, hold significant promise in various applications, especially in 3D printing. Understanding the role of the physical properties that affect the end product is crucial for optimizing the production and performance of diatom-based silica structures. This thesis investigates how feed rate (i.e., how much the plunger moves per minute) and needle size affect peak stress (i.e., maximum stress at which liquid is extruded from the needle) and viscosity through a series of controlled experiments. Two different types of instruments were used: a rheometer and a tensile tester. Out of the variables examined, needle size has the greatest influence on peak stress and viscosity, whereas the impact of feed rate on peak stress and viscosity can vary depending on the needle size. Further exploration is needed for applications of diatom-based solutions in 3D printing to determine which feed rate is optimal for each needle size in order to print the best structure possible.
Recommended Citation
Cha, Grace, "An Analysis of the Physical Properties of Diatom-Based Solutions for 3D Printing Applications" (2024). Undergraduate Honors Theses. William & Mary. Paper 2222.
https://scholarworks.wm.edu/honorstheses/2222
