CaO in Optical Waveguides
Department
Materials Science and Engineering
Major
Ceramic Engineering
Research Advisor
Brow, Richard K.
Advisor's Department
Materials Science and Engineering
Funding Source
Graduate Assistance in Areas of National Need (GAANN)
Abstract
Optical waveguides have been formed by using femtosecond laser pulses in ZnO-P2O5 glasses. This system is useful for optical applications such as waveguides, but is not chemically durable. It is believed that the addition of alkaline-earth oxides will add chemical durability to the system while maintaining the waveguide forming properties. In this project, CaO is considered as a potential additive to the ZnO-P2O5 glass system. To facilitate the selection of a glass composition for waveguides a glass forming ternary diagram consisting of CaO-ZnO-P2O5 was created. Glass compositions for the diagram were melted twice for a total of three hours. Properties such as glass transition temperature (T9) and density were recorded for each composition. Glasses with partial crystallization or phase separation were recorded separately from pure glass. The bottom limit for glass forming capability is near the 30% P2O5 line. The density of a glass decreases with increasing CaO content.
Biography
Ryan is a senior in the Ceramic Engineering department and Missouri University of Science and Technology. He has been working under Dr. Brow for two years in glass research. Shortly after starting work, he worked only with Charmayne Smith on her projects. In the summer of 2012, he was given his own research project: to develop a glass forming diagram of the ternary system of ZnO-CaO-P2O5.
Research Category
Engineering
Presentation Type
Poster Presentation
Document Type
Poster
Location
Upper Atrium/Hallway
Presentation Date
03 Apr 2013, 1:00 pm - 3:00 pm
CaO in Optical Waveguides
Upper Atrium/Hallway
Optical waveguides have been formed by using femtosecond laser pulses in ZnO-P2O5 glasses. This system is useful for optical applications such as waveguides, but is not chemically durable. It is believed that the addition of alkaline-earth oxides will add chemical durability to the system while maintaining the waveguide forming properties. In this project, CaO is considered as a potential additive to the ZnO-P2O5 glass system. To facilitate the selection of a glass composition for waveguides a glass forming ternary diagram consisting of CaO-ZnO-P2O5 was created. Glass compositions for the diagram were melted twice for a total of three hours. Properties such as glass transition temperature (T9) and density were recorded for each composition. Glasses with partial crystallization or phase separation were recorded separately from pure glass. The bottom limit for glass forming capability is near the 30% P2O5 line. The density of a glass decreases with increasing CaO content.
