{'fraction_non_alphanumeric': 0.04111466423024212, 'fraction_numerical': 0.01735952489721334, 'mean_word_length': 5.169014084507042, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 12, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 1, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Shear viscosities of galliosilicate liquids

The shear viscosities of 19 galliosilicate and related liquids have been measured using the concentric cylinder method. Nine of the liquid compositions lie in the NarO-GarOrSiO, system, eight liquids correspond in composition to XltlGaSi'O' (where X: Cs, Rb, K, Na, Li, Ba, Sr, and Ca), and five liquids are Li silicates related by the exchange of Al, Ga, and Fe. The measurements were performed at 1 atm of air pressure in the temperature range of 1700-900'C and a viscosity range of 10''3-105 dPaS. The rotation rates ranged from 0.5 to 100 rpm. All melts exhibited Newtonian viscosities. The viscosities of the Xi;iGaSirO' liquids decrease in the orderCs > Rb > K > Na > Li and Ba > Sr > Ca. IncreasingSiO, content in liquids on the SiOr-NaGaO, join (NaGaSiOo, NaGaSi'Ou, NaGaSirOr) results in increasing viscosity. The exchange of GarO, for NarO along the 75 molVo SiO, isopleth (NarSirOr, Na,rGa"rSirOrr, NaGaSirOr, Na"rGa,5Si3Ors, GarSirOn) yields a viscosity maximum at NaGaSirO.. Comparison with viscosity data for aluminosilicate, ferrosilicate, and borosilicate liquids indicates that viscosities decrease in the order aluminosilicate > galliosilicate > ferrosilicate > borosilicate. Recent heat of solution measurements on NaXSi3O8 glasses (where X: Al, Fe, Ga, and B), in molten PbrB2O5 at973K indicate that the degree to which glasses are stabilized increases in the order Al > Ga > Fe > B (DeYoreo et al., 1990). Thus a correlation can be made between liquid viscosity and glassy heat of solution that is similar to that previously noted for the alkali exchange in aluminosilicate melts of the formula XAlSi3O8 (where X : alkali). Galliosilicate liquids have been used as structural analogues of the aluminosilicates. The composition-dependence of their viscosities is analogous to the aluminosilicates with the diference that the glass transition occurs at much lower temperatures in galliosilicate liquids. These results confirm galliosilicate liquids as useful analogues for aluminosilicate liquids in studies where the high viscosities of the latter may prevent experimental determination of certain relaxed liquid properties.