SULIWA

Deeply Supercooled Liquid Water

 Coordinatore UNIVERSITAET INNSBRUCK 

Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie.

 Nazionalità Coordinatore Austria [AT]
 Totale costo 1˙389˙238 €
 EC contributo 1˙389˙238 €
 Programma FP7-IDEAS-ERC
Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call ERC-2007-StG
 Funding Scheme ERC-SG
 Anno di inizio 2008
 Periodo (anno-mese-giorno) 2008-08-01   -   2013-07-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    UNIVERSITAET INNSBRUCK

 Organization address address: INNRAIN 52
city: INNSBRUCK
postcode: 6020

contact info
Titolo: Dr.
Nome: Robert
Cognome: Rebitsch
Email: send email
Telefono: -10034
Fax: -3583

AT (INNSBRUCK) hostInstitution 0.00
2    UNIVERSITAET INNSBRUCK

 Organization address address: INNRAIN 52
city: INNSBRUCK
postcode: 6020

contact info
Titolo: Dr.
Nome: Thomas
Cognome: Loerting
Email: send email
Telefono: -6048
Fax: -3901

AT (INNSBRUCK) hostInstitution 0.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

heating    temperatures    liquid    land    amorphous    crystallization    distinct    man    water    liquids    supercooled    density    transition    shows    first    slightly    experiments    hda    below   

 Obiettivo del progetto (Objective)

'Water is ubiquitous and so an understanding of water’s anomalous liquid state is crucial for such diverse fields as protein biochemistry, meteorology or astrophysics. A postulated first order phase transition between two distinct one-component liquids at low temperatures is believed to be the key to many riddles in contemporary science: a “fragile” liquid of high density and a “strong” liquid of low density. At higher temperatures the phase boundary might end in a speculative second critical point in supercooled water. Unfortunately it has not been possible so far to support/falsify these hypotheses with direct experiments because of fast crystallization of the liquid(s) in the relevant portion of the phase diagram, which is called 'no man's land'. Therefore, experiments to test the hypothesis were previously done in the non-crystalline, solid state (“amorphous water”) at temperatures well below the 'no man's land'. More than 20 years ago liquid-like relaxation was measured on heating glassy water at 1 bar to 136 - 150 K, i.e., to temperatures slightly below crystallization, which is still discussed controversially. Recently we managed to observe liquid-like properties on heating high density amorphous ice (HDA) under isobaric conditions at pressures up to 1 GPa above its glass-liquid transition at a temperature slightly below the 'no man's land' without observing significant crystallization. These findings open the exciting possibility to characterize (e.g., by dilatometry, thermal analysis and dielectric spectroscopy) deeply supercooled liquid water both at ambient and high pressure conditions and to check if water indeed shows a first order liquid-liquid phase transition between two distinct liquids. This will unravel the question how many liquids and how many corresponding amorphous states there are in water, and if VHDA discovered by us in 2001 shows a polyamorphic transition to HDA, or if it is simply annealed HDA.'

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