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

^*Corresponding author for this work

Central South University
Northeastern University China
Geological Survey of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

13 Citations (Web of Science)

116 Downloads (Pure)

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.

Original language	English
Pages (from-to)	20116-20125
Number of pages	10
Journal	Ceramics International
Volume	48
Issue number	14
Early online date	Apr 2022
DOIs	https://doi.org/10.1016/j.ceramint.2022.03.290
Publication status	Published - 15 Jul 2022
MoE publication type	A1 Journal article-refereed

Funding

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.

Keywords

Phase diagram
Phase equilibria
Resource efficiency
Thermodynamics
TiO
Titania-bearing slag

Access to Document

10.1016/j.ceramint.2022.03.290Licence: CC BY

CHEM_Chen_et_al_Phase_equilibria_2022_Ceramics_InternationalFinal published version, 6.47 MBLicence: CC BY

Cite this

@article{7938b1e712fe44168a9007a38b9d8c1c,

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

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",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors",

year = "2022",

month = jul,

day = "15",

doi = "10.1016/j.ceramint.2022.03.290",

language = "English",

volume = "48",

pages = "20116--20125",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier",

number = "14",

}

TY - JOUR

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

UR - https://www.scopus.com/pages/publications/85127615804

U2 - 10.1016/j.ceramint.2022.03.290

DO - 10.1016/j.ceramint.2022.03.290

M3 - Article

AN - SCOPUS:85127615804

SN - 0272-8842

VL - 48

SP - 20116

EP - 20125

JO - Ceramics International

JF - Ceramics International

IS - 14

ER -

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

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Raw Materials Research Infrastructure

Cite this

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

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Equipment

Raw Materials Research Infrastructure

Cite this

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