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13 March 2024 Evaluation of viscoelastic changes during liquid crystal phase transition using micro glass tube resonance
Sayaka Nakajima, Natsuha Ishihara, Satoru Shoji
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Proceedings Volume PC12899, MOEMS and Miniaturized Systems XXIII; PC1289902 (2024) https://doi.org/10.1117/12.3001330
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
In our study, we used micro-glass tube resonance to measure changes in viscoelasticity during the phase transitions of liquid crystals, an intermediate state between solid and liquid. By heating and stretching glass tubes into a hollow state and inducing resonance, we detected inherent frequencies influenced by tube dimensions and sample properties. Using sucrose water and room-temperature liquid crystal (MBBA) as samples, we tracked changes in viscoelasticity with different temperatures. We observed a linear decrease in inherent frequency with increasing sucrose water concentration. Additionally, we detected viscoelastic changes in MBBA around its phase transition temperature.
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Sayaka Nakajima, Natsuha Ishihara, and Satoru Shoji "Evaluation of viscoelastic changes during liquid crystal phase transition using micro glass tube resonance", Proc. SPIE PC12899, MOEMS and Miniaturized Systems XXIII, PC1289902 (13 March 2024); https://doi.org/10.1117/12.3001330
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KEYWORDS
Viscoelasticity
Liquid crystals
Glasses
Laser frequency
Vibration
Liquids
Solids
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