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Thesis
MAGNETIC GLASS CERAMICS: A STUDY OF HEXAFERRITES IN THE STRONTIUM BORATE GLASS SYSTEM
Washington State University
Master of Science (MS), Washington State University
01/2021
DOI:
https://doi.org/10.7273/000005429
Handle:
https://hdl.handle.net/2376/119268
Abstract
Typical glass formers are amorphous in their underlying structure and do not exhibit any form of detectable magnetism. However, the compositional flexibility of such non-crystalline systems enhances the potential for the nucleation and growth of highly magnetic phases producing what is referred to as glass ceramics. Such Magnetic Glass Ceramic (MGC) materials find applications in magnetic storage in recording media, permanent magnets, and dielectric materials. Cancer therapy stands to benefit from non-volatility of crystallized magnetic phases in MGCs as compared to their nanoparticle counterparts. The principal goals of this thesis were to: 1.) Identify and optimize the selection procedure for favorable glass systems by systematic increments in composition. 2.) Characterize glasses based on a down-selection criterion of amorphousness-upon-quench using x-ray diffraction (XRD). 3.) Prepare MGCs via varied heat treatment techniques in the range of 700-900°C and further characterize them for crystallization by differential thermal analysis (DTA) and X-ray diffraction (XRD), magnetic behavior via vibrating sample magnetometry (VSM), and microstructural signatures from scanning electron microscopy (SEM).
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Details
- Title
- MAGNETIC GLASS CERAMICS: A STUDY OF HEXAFERRITES IN THE STRONTIUM BORATE GLASS SYSTEM
- Creators
- Arumala Josiah Lere-Adams
- Contributors
- John S McCloy (Advisor)David P Field (Committee Member)Scott P Beckman (Committee Member)
- Awarding Institution
- Washington State University
- Academic Unit
- Voiland College of Engineering and Architecture
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University
- Number of pages
- 41
- Identifiers
- 99900592154301842
- Language
- English
- Resource Type
- Thesis