Phase equilibria in TiO2-rich part of the MgO–CaO–TiO2 system at 1500–1600 °C

Min Chen; Xingbang Wan; Pekka Taskinen; Dmitry Sukhomlinov; Junjie Shi; Radoslaw Michallik; Ari Jokilaakso

doi:10.1016/j.ceramint.2022.03.290

Phase equilibria in TiO₂-rich part of the MgO–CaO–TiO₂ system at 1500–1600 °C

Min Chen
, Xingbang Wan^*
, Pekka Taskinen
, Dmitry Sukhomlinov
, Junjie Shi
, Radoslaw Michallik
, Ari Jokilaakso

^*Tämän työn vastaava kirjoittaja

Central South University
Northeastern University China
Geological Survey of Finland

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

13 Viittaukset (Web of Science)

114 Lataukset (Pure)

Abstrakti

The equilibrium phase relations of the MgO–CaO–TiO₂ system were investigated at 1500–1600 °C in air using the high-temperature isothermal equilibration of samples in platinum crucibles followed by the rapid quenching technique. The phase compositions were analyzed using an electron probe X-ray microanalyzer (EPMA). The isothermal sections at 1500 °C and 1600 °C were constructed based on the experimentally determined liquid phase compositions. The present results deviate significantly from previous observations as well as the predictions by MTDATA and FactSage using their oxide databases, in particular in the perovskite primary phase field.

Alkuperäiskieli	Englanti
Sivut	20116-20125
Sivumäärä	10
Julkaisu	Ceramics International
Vuosikerta	48
Numero	14
Varhainen verkossa julkaisun päivämäärä	huhtik. 2022
DOI - pysyväislinkit	https://doi.org/10.1016/j.ceramint.2022.03.290
Tila	Julkaistu - 15 heinäk. 2022
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

The use of the Academy of Finland's RawMatTERS Finland Infrastructure (RAMI), housed jointly at Aalto University, GTK, and VTT in Espoo, is greatly acknowledged. Min Chen is grateful for the financial support from the China Scholarship Council (#201806370217). This work is partly financed by Aalto University, School of Chemical Engineering as well as the Natural Science Foundation of Liaoning Province (2021-MS-083). The authors would like to thank Ms. Fabiola Lasar and Mr. Kezhou Song for the assistance in experiments. Dr. Lassi Klemettinen is greatly acknowledged for his valuable discussion. The use of the Academy of Finland's RawMatTERS Finland Infrastructure (RAMI), housed jointly at Aalto University, GTK, and VTT in Espoo, is greatly acknowledged. Min Chen is grateful for the financial support from the China Scholarship Council (# 201806370217 ). This work is partly financed by Aalto University, School of Chemical Engineering as well as the Natural Science Foundation of Liaoning Province (2021-MS-083). The authors would like to thank Ms. Fabiola Lasar and Mr. Kezhou Song for the assistance in experiments. Dr. Lassi Klemettinen is greatly acknowledged for his valuable discussion.

Pääsy asiakirjaan

10.1016/j.ceramint.2022.03.290Lisenssi: CC BY

CHEM_Chen_et_al_Phase_equilibria_2022_Ceramics_InternationalFinal published version, 6,47 MBLisenssi: CC BY

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abstract = "The equilibrium phase relations of the MgO–CaO–TiO2 system were investigated at 1500–1600 °C in air using the high-temperature isothermal equilibration of samples in platinum crucibles followed by the rapid quenching technique. The phase compositions were analyzed using an electron probe X-ray microanalyzer (EPMA). The isothermal sections at 1500 °C and 1600 °C were constructed based on the experimentally determined liquid phase compositions. The present results deviate significantly from previous observations as well as the predictions by MTDATA and FactSage using their oxide databases, in particular in the perovskite primary phase field.",

keywords = "Phase diagram, Phase equilibria, Resource efficiency, Thermodynamics, TiO, Titania-bearing slag",

author = "Min Chen and Xingbang Wan and Pekka Taskinen and Dmitry Sukhomlinov and Junjie Shi and Radoslaw Michallik and Ari Jokilaakso",

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T1 - Phase equilibria in TiO2-rich part of the MgO–CaO–TiO2 system at 1500–1600 °C

AU - Chen, Min

AU - Wan, Xingbang

AU - Taskinen, Pekka

AU - Sukhomlinov, Dmitry

AU - Shi, Junjie

AU - Michallik, Radoslaw

AU - Jokilaakso, Ari

PY - 2022/7/15

Y1 - 2022/7/15

N2 - The equilibrium phase relations of the MgO–CaO–TiO2 system were investigated at 1500–1600 °C in air using the high-temperature isothermal equilibration of samples in platinum crucibles followed by the rapid quenching technique. The phase compositions were analyzed using an electron probe X-ray microanalyzer (EPMA). The isothermal sections at 1500 °C and 1600 °C were constructed based on the experimentally determined liquid phase compositions. The present results deviate significantly from previous observations as well as the predictions by MTDATA and FactSage using their oxide databases, in particular in the perovskite primary phase field.

AB - The equilibrium phase relations of the MgO–CaO–TiO2 system were investigated at 1500–1600 °C in air using the high-temperature isothermal equilibration of samples in platinum crucibles followed by the rapid quenching technique. The phase compositions were analyzed using an electron probe X-ray microanalyzer (EPMA). The isothermal sections at 1500 °C and 1600 °C were constructed based on the experimentally determined liquid phase compositions. The present results deviate significantly from previous observations as well as the predictions by MTDATA and FactSage using their oxide databases, in particular in the perovskite primary phase field.

KW - Phase diagram

KW - Phase equilibria

KW - Resource efficiency

KW - Thermodynamics

KW - TiO

KW - Titania-bearing slag

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DO - 10.1016/j.ceramint.2022.03.290

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