NEW MODELS _ NEW description of the temperature & pressure prvitrous, dynamics in GLASS FORMING SYSTEMS
X-PressMatter Group' IHPP PAS
Soft Matter Blog
Discover the secrets of Soft Matter with us!
The analysis led to the:
critical-like & activated scaling terms for the temperature path & the critical-like portrayal for the pressure path.
The universality of the proposed above relations is evidenced for glass formers belonging to:
low molecular weight liquids, polymers (melt and solid), plastic crystals, liquid crystals, resins, relaxors, biosystem (polyalcohols).
Aleksandra Drozd-Rzoska, Universal behavior of the apparent fragility in ultraslow glass forming systems, Scientific Reports 9, 6816 (2019).
Aleksandra Drozd-Rzoska, Pressure-related universal previtreous behavior of the structural relaxation time and apparent fragility, Frontiers in Materials: Glass Sci. 6, 103 (2019).
In 2019 Aleksandra Drozd-Rzoska showed NEW evidence for the previtreous behavior of the relaxation time and the apparent fragility,
offering a NEW gate for glass transition models. She showed that the temperature and pressure-related relaxation time can show the “universal” pretransitional anomaly, both on approaching the glass transition pressure and the dynamic crossover:
The progress in understanding and describing the anomalous previtreous increase of the structural relaxation time
or viscosity is considered as the key to resolving the grand cognitive challenge of the glass transition.
* 1. Popularization of knowledge, especially regarding Soft Matter Physics and the impact of High Pressure
* 2. Promoting achievements of young scientists associated with the X-PressMatter IHPP PAS Laboratory
* 3. Promoting knowledge about personalities of the world of science
* 4. Supporting co-organization/ organization of the "Show Yourself in Science" Workshop & International Seminar on Soft Matter
This WEBSITE was created to realize the following, main GOALS:
Soft Matter systems have common features, such as the dominance of elements or local structures on the mesoscale, combined with their relatively weak interactions, which turns out to be sufficient to obtain a tendency to self-organize with even a small change in parameters. This additionally leads to extraordinary sensitivity to even minor endogenous and exogenous factors, e.g., nanoparticles and pressure. In the case of the latter, relatively low pressures P~1 GPa, or even much lower ones, can lead to phases/states with exotic features, often persisting after decompression.
Worth stressing, that for "classical hard matter" systems, a pressure similar to that at the Earth's core (~300 GPa) is typically required, and the resulting "exotic" properties most often disappear upon decompression.
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