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Design of Composites by Infiltration Process: A Case Study of Liquid Ir-Si Alloy/SiC Systems
The design of processing routes involving the presence of the liquid phase is mainly associated with the knowledge of its surface and transport properties. Despite this need, due to experimental difficulties related to high temperature measurements of metallic melts, for many alloy systems neither t...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8541306/ https://www.ncbi.nlm.nih.gov/pubmed/34683615 http://dx.doi.org/10.3390/ma14206024 |
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author | Novakovic, Rada Delsante, Simona Giuranno, Donatella |
author_facet | Novakovic, Rada Delsante, Simona Giuranno, Donatella |
author_sort | Novakovic, Rada |
collection | PubMed |
description | The design of processing routes involving the presence of the liquid phase is mainly associated with the knowledge of its surface and transport properties. Despite this need, due to experimental difficulties related to high temperature measurements of metallic melts, for many alloy systems neither thermodynamic nor thermophysical properties data are available. A good example of a system lacking these datasets is the Ir-Si system, although over the last fifty years, the structures and properties of its solid phases have been widely investigated. To compensate the missing data, the Gibbs free energy of mixing of the Ir-Si liquid phase was calculated combining the model predicted values for the enthalpy and entropy of mixing using Miedema’s model and the free volume theory, respectively. Subsequently, in the framework of statistical mechanics and thermodynamics, the surface properties were calculated using the quasi-chemical approximation (QCA) for the regular solution, while to obtain the viscosity, the Moelwyn-Hughes (MH) and Terzieff models were applied. Subsequently, the predicted values of the abovementioned thermophysical properties were used to model the non-reactive infiltration isotherm of Ir-Si (eutectic)/SiC system. |
format | Online Article Text |
id | pubmed-8541306 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85413062021-10-24 Design of Composites by Infiltration Process: A Case Study of Liquid Ir-Si Alloy/SiC Systems Novakovic, Rada Delsante, Simona Giuranno, Donatella Materials (Basel) Article The design of processing routes involving the presence of the liquid phase is mainly associated with the knowledge of its surface and transport properties. Despite this need, due to experimental difficulties related to high temperature measurements of metallic melts, for many alloy systems neither thermodynamic nor thermophysical properties data are available. A good example of a system lacking these datasets is the Ir-Si system, although over the last fifty years, the structures and properties of its solid phases have been widely investigated. To compensate the missing data, the Gibbs free energy of mixing of the Ir-Si liquid phase was calculated combining the model predicted values for the enthalpy and entropy of mixing using Miedema’s model and the free volume theory, respectively. Subsequently, in the framework of statistical mechanics and thermodynamics, the surface properties were calculated using the quasi-chemical approximation (QCA) for the regular solution, while to obtain the viscosity, the Moelwyn-Hughes (MH) and Terzieff models were applied. Subsequently, the predicted values of the abovementioned thermophysical properties were used to model the non-reactive infiltration isotherm of Ir-Si (eutectic)/SiC system. MDPI 2021-10-13 /pmc/articles/PMC8541306/ /pubmed/34683615 http://dx.doi.org/10.3390/ma14206024 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Novakovic, Rada Delsante, Simona Giuranno, Donatella Design of Composites by Infiltration Process: A Case Study of Liquid Ir-Si Alloy/SiC Systems |
title | Design of Composites by Infiltration Process: A Case Study of Liquid Ir-Si Alloy/SiC Systems |
title_full | Design of Composites by Infiltration Process: A Case Study of Liquid Ir-Si Alloy/SiC Systems |
title_fullStr | Design of Composites by Infiltration Process: A Case Study of Liquid Ir-Si Alloy/SiC Systems |
title_full_unstemmed | Design of Composites by Infiltration Process: A Case Study of Liquid Ir-Si Alloy/SiC Systems |
title_short | Design of Composites by Infiltration Process: A Case Study of Liquid Ir-Si Alloy/SiC Systems |
title_sort | design of composites by infiltration process: a case study of liquid ir-si alloy/sic systems |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8541306/ https://www.ncbi.nlm.nih.gov/pubmed/34683615 http://dx.doi.org/10.3390/ma14206024 |
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