Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite–Alkali Feldspars
The aim of the research was to check whether the system of three fluxes based on lithium aluminium silicate and alkali feldspars has a eutectic point, i.e., with the lowest melting temperature. Lithium was introduced into the mixtures in the form of petalite, which occurs naturally in nature (Bikita...
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MDPI AG
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| Online Access: | https://www.mdpi.com/1996-1944/14/23/7321 |
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| author | Agata Stempkowska |
| author_facet | Agata Stempkowska |
| author_sort | Agata Stempkowska |
| collection | DOAJ |
| description | The aim of the research was to check whether the system of three fluxes based on lithium aluminium silicate and alkali feldspars has a eutectic point, i.e., with the lowest melting temperature. Lithium was introduced into the mixtures in the form of petalite, which occurs naturally in nature (Bikita Zimbabwe deposit). Using naturally occurring raw materials such as petalite, sodium feldspar, and potassium feldspar, an attempt was made to obtain eutectics with the lowest melting point to facilitate thermal processing of the mineral materials. In addition, the high-temperature viscosity of the mineral alloys and physical parameters such as density, linear shrinkage, and open porosity were studied. The study showed that in these systems, there is one three-component eutectic at 1345 °C, with the lowest viscosity of 1·10<sup>5</sup> Pas and the highest density of 2.34g/cm<sup>3</sup>, with a weight content of petalite 20%, sodium feldspar 20%, and potassium feldspar 20%<b>.</b> |
| first_indexed | 2024-03-10T04:49:24Z |
| format | Article |
| id | doaj.art-6d6049bed0584a1c93c2dd7667db13bc |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T04:49:24Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-6d6049bed0584a1c93c2dd7667db13bc2023-11-23T02:41:55ZengMDPI AGMaterials1996-19442021-11-011423732110.3390/ma14237321Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite–Alkali FeldsparsAgata Stempkowska0Department of Environmental Engineering, Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Kraków, PolandThe aim of the research was to check whether the system of three fluxes based on lithium aluminium silicate and alkali feldspars has a eutectic point, i.e., with the lowest melting temperature. Lithium was introduced into the mixtures in the form of petalite, which occurs naturally in nature (Bikita Zimbabwe deposit). Using naturally occurring raw materials such as petalite, sodium feldspar, and potassium feldspar, an attempt was made to obtain eutectics with the lowest melting point to facilitate thermal processing of the mineral materials. In addition, the high-temperature viscosity of the mineral alloys and physical parameters such as density, linear shrinkage, and open porosity were studied. The study showed that in these systems, there is one three-component eutectic at 1345 °C, with the lowest viscosity of 1·10<sup>5</sup> Pas and the highest density of 2.34g/cm<sup>3</sup>, with a weight content of petalite 20%, sodium feldspar 20%, and potassium feldspar 20%<b>.</b>https://www.mdpi.com/1996-1944/14/23/7321high-temperature viscositymelting temperaturemineral eutecticpetalitesintering intervals |
| spellingShingle | Agata Stempkowska Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite–Alkali Feldspars Materials high-temperature viscosity melting temperature mineral eutectic petalite sintering intervals |
| title | Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite–Alkali Feldspars |
| title_full | Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite–Alkali Feldspars |
| title_fullStr | Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite–Alkali Feldspars |
| title_full_unstemmed | Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite–Alkali Feldspars |
| title_short | Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite–Alkali Feldspars |
| title_sort | characteristics of thermal parameters and some physical properties of mineral eutectic type petalite alkali feldspars |
| topic | high-temperature viscosity melting temperature mineral eutectic petalite sintering intervals |
| url | https://www.mdpi.com/1996-1944/14/23/7321 |
| work_keys_str_mv | AT agatastempkowska characteristicsofthermalparametersandsomephysicalpropertiesofmineraleutectictypepetalitealkalifeldspars |