Phase composition and phase equilibrium diagrams as the Evidence of the Colloidal State of melts

One of the most extensively studied silicate systems with complete miscibility in the solid and liquid state – albite (Ab)-anorthite (An) system – has been analyzed in detail. It has been established that the commonly accepted system and interpretation rules for these diagrams do not match their gra...

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Main Author: Pankov Vladimir
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Subjects:
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/26/e3sconf_uesf2023_01027.pdf
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author Pankov Vladimir
author_facet Pankov Vladimir
author_sort Pankov Vladimir
collection DOAJ
description One of the most extensively studied silicate systems with complete miscibility in the solid and liquid state – albite (Ab)-anorthite (An) system – has been analyzed in detail. It has been established that the commonly accepted system and interpretation rules for these diagrams do not match their graphic representation. Calculations have proved the colloidal state of the “solid” phase on the solidus. Actual data support the colloidal (liquid) state of the solidus phase below the solidus and eutectic point. Crystallization in multicomponent systems, at least in silicate melts, has been shown to be based on the sol coagulation mechanism. Thus, silicate solid phases, even those of fixed composition, have no particular melting point. They consolidate and melt within a temperature band. The bandwidth is subject to the system composition that predetermines the micelle structure and directly affects coagulation and peptization processes.
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spelling doaj.art-0b1225a91e2b48c1b719ce1e3cb7bb252023-06-09T09:07:30ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013890102710.1051/e3sconf/202338901027e3sconf_uesf2023_01027Phase composition and phase equilibrium diagrams as the Evidence of the Colloidal State of meltsPankov Vladimir0North-Eastern Federal University named after M.K. Ammosov (NEFU)One of the most extensively studied silicate systems with complete miscibility in the solid and liquid state – albite (Ab)-anorthite (An) system – has been analyzed in detail. It has been established that the commonly accepted system and interpretation rules for these diagrams do not match their graphic representation. Calculations have proved the colloidal state of the “solid” phase on the solidus. Actual data support the colloidal (liquid) state of the solidus phase below the solidus and eutectic point. Crystallization in multicomponent systems, at least in silicate melts, has been shown to be based on the sol coagulation mechanism. Thus, silicate solid phases, even those of fixed composition, have no particular melting point. They consolidate and melt within a temperature band. The bandwidth is subject to the system composition that predetermines the micelle structure and directly affects coagulation and peptization processes.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/26/e3sconf_uesf2023_01027.pdfcrystallizationmeltingsolcoagulationpeptizationcoacervation
spellingShingle Pankov Vladimir
Phase composition and phase equilibrium diagrams as the Evidence of the Colloidal State of melts
E3S Web of Conferences
crystallization
melting
sol
coagulation
peptization
coacervation
title Phase composition and phase equilibrium diagrams as the Evidence of the Colloidal State of melts
title_full Phase composition and phase equilibrium diagrams as the Evidence of the Colloidal State of melts
title_fullStr Phase composition and phase equilibrium diagrams as the Evidence of the Colloidal State of melts
title_full_unstemmed Phase composition and phase equilibrium diagrams as the Evidence of the Colloidal State of melts
title_short Phase composition and phase equilibrium diagrams as the Evidence of the Colloidal State of melts
title_sort phase composition and phase equilibrium diagrams as the evidence of the colloidal state of melts
topic crystallization
melting
sol
coagulation
peptization
coacervation
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/26/e3sconf_uesf2023_01027.pdf
work_keys_str_mv AT pankovvladimir phasecompositionandphaseequilibriumdiagramsastheevidenceofthecolloidalstateofmelts