The Impact of Nanoparticles on Previtreous Behavior: Glass-Forming Nematogenic E7 Mixture-Based Nanocolloids DOI Creative Commons
Aleksandra Drozd-Rzoska, J. Łoś, Sylwester J. Rzoska

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(8), P. 597 - 597

Published: April 13, 2025

This report discusses the impact of nanoparticles on glass-forming systems composed a liquid crystalline (LC) mixture E7 and paraelectric BaTiO3 particles (d≈50 nm, globular), tested via broadband dielectric spectroscopy. In isotropic phase, critical changes in constant are shown. They related to weakly discontinuous nature isotropic–nematic transition. nematic two primary relaxation times/processes DC electric conductivity considered, down glass temperature Tg. The prevalence portrayals ‘double exponential’ MYEGA equation & activated Drozd-Rzoska relation for dynamic properties For loss curve, critical-like its maximum (peak) evidenced: εpeak″∝1/T−Tg* Tg<T<Tg+25 K, where Tg*<Tg denotes extrapolated singular temperature. Dielectric monitoring revealed permanent arrangement rod-like LC molecules by nanoparticles’ endogenic phase. heuristic model regarding this unique behavior is presented. It considers hypothetical link between transition hidden near-critical phase transition, uniquely avoiding symmetry change. uniaxiality enables detection features when approaching hypothetically associated with specific ‘amorphous’

Language: Английский

The Impact of Nanoparticles on Previtreous Behavior: Glass-Forming Nematogenic E7 Mixture-Based Nanocolloids DOI Creative Commons
Aleksandra Drozd-Rzoska, J. Łoś, Sylwester J. Rzoska

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(8), P. 597 - 597

Published: April 13, 2025

This report discusses the impact of nanoparticles on glass-forming systems composed a liquid crystalline (LC) mixture E7 and paraelectric BaTiO3 particles (d≈50 nm, globular), tested via broadband dielectric spectroscopy. In isotropic phase, critical changes in constant are shown. They related to weakly discontinuous nature isotropic–nematic transition. nematic two primary relaxation times/processes DC electric conductivity considered, down glass temperature Tg. The prevalence portrayals ‘double exponential’ MYEGA equation & activated Drozd-Rzoska relation for dynamic properties For loss curve, critical-like its maximum (peak) evidenced: εpeak″∝1/T−Tg* Tg<T<Tg+25 K, where Tg*<Tg denotes extrapolated singular temperature. Dielectric monitoring revealed permanent arrangement rod-like LC molecules by nanoparticles’ endogenic phase. heuristic model regarding this unique behavior is presented. It considers hypothetical link between transition hidden near-critical phase transition, uniquely avoiding symmetry change. uniaxiality enables detection features when approaching hypothetically associated with specific ‘amorphous’

Language: Английский

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