Thermal stability of CaCu3Ti4O12: Simultaneous thermal analysis and high-temperature mass spectrometric study

N. A. Zhuk, S. M. Shugurov, V. A. Belyy, B. A. Makeev, M. V. Yermolina, D. S. Beznosikov, L. A. Koksharova

Research output

1 Citation (Scopus)

Abstract

Thermal stability of calcium copper titanate was studied by differential scanning calorimetry, thermogravimetry and high-temperature mass spectrometry. Calcium copper titanate (CCTO) had no thermal effects and mass losses caused by thermal dissociation or any phase transitions, besides melting, in the temperature range of 298–1423 K. The melting point of calcium copper titanate is 1398 K. The endothermic effect at 1250 K was associated with the decomposition of copper (II) oxide segregated in the intergrain space of the CaCu3Ti4O12-CuO ceramics. In this connection, we proposed a simple method for estimating the content of copper oxide in the CaCu3Ti4O12-CuO composite. The processes of evaporation of CaCu3Ti4O12 in the temperature range of 1500–2100 K were studied by high-temperature mass spectrometry. In the temperature range of 1500–1750 K, easily volatilized copper oxide was evaporated selectively from the calcium copper titanate. At the temperature of 2100 K, atomic calcium and titanium oxides, TiO and TiO2, were present in the vapor.

Original languageEnglish
JournalCeramics International
DOIs
Publication statusE-pub ahead of print - 9 Aug 2018

Fingerprint

Thermoanalysis
Thermodynamic stability
Copper oxides
Copper
Calcium
Temperature
Mass spectrometry
Titanium oxides
Lime
Thermal effects
Melting point
Thermogravimetric analysis
Differential scanning calorimetry
Evaporation
Melting
Phase transitions
Vapors
Decomposition
Composite materials

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Zhuk, N. A. ; Shugurov, S. M. ; Belyy, V. A. ; Makeev, B. A. ; Yermolina, M. V. ; Beznosikov, D. S. ; Koksharova, L. A. / Thermal stability of CaCu3Ti4O12 : Simultaneous thermal analysis and high-temperature mass spectrometric study. In: Ceramics International. 2018.
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abstract = "Thermal stability of calcium copper titanate was studied by differential scanning calorimetry, thermogravimetry and high-temperature mass spectrometry. Calcium copper titanate (CCTO) had no thermal effects and mass losses caused by thermal dissociation or any phase transitions, besides melting, in the temperature range of 298–1423 K. The melting point of calcium copper titanate is 1398 K. The endothermic effect at 1250 K was associated with the decomposition of copper (II) oxide segregated in the intergrain space of the CaCu3Ti4O12-CuO ceramics. In this connection, we proposed a simple method for estimating the content of copper oxide in the CaCu3Ti4O12-CuO composite. The processes of evaporation of CaCu3Ti4O12 in the temperature range of 1500–2100 K were studied by high-temperature mass spectrometry. In the temperature range of 1500–1750 K, easily volatilized copper oxide was evaporated selectively from the calcium copper titanate. At the temperature of 2100 K, atomic calcium and titanium oxides, TiO and TiO2, were present in the vapor.",
keywords = "Calcium copper titanate, High-temperature mass-spectrometry, Thermal analysis, Thermal properties",
author = "Zhuk, {N. A.} and Shugurov, {S. M.} and Belyy, {V. A.} and Makeev, {B. A.} and Yermolina, {M. V.} and Beznosikov, {D. S.} and Koksharova, {L. A.}",
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Thermal stability of CaCu3Ti4O12 : Simultaneous thermal analysis and high-temperature mass spectrometric study. / Zhuk, N. A.; Shugurov, S. M.; Belyy, V. A.; Makeev, B. A.; Yermolina, M. V.; Beznosikov, D. S.; Koksharova, L. A.

In: Ceramics International, 09.08.2018.

Research output

TY - JOUR

T1 - Thermal stability of CaCu3Ti4O12

T2 - Simultaneous thermal analysis and high-temperature mass spectrometric study

AU - Zhuk, N. A.

AU - Shugurov, S. M.

AU - Belyy, V. A.

AU - Makeev, B. A.

AU - Yermolina, M. V.

AU - Beznosikov, D. S.

AU - Koksharova, L. A.

PY - 2018/8/9

Y1 - 2018/8/9

N2 - Thermal stability of calcium copper titanate was studied by differential scanning calorimetry, thermogravimetry and high-temperature mass spectrometry. Calcium copper titanate (CCTO) had no thermal effects and mass losses caused by thermal dissociation or any phase transitions, besides melting, in the temperature range of 298–1423 K. The melting point of calcium copper titanate is 1398 K. The endothermic effect at 1250 K was associated with the decomposition of copper (II) oxide segregated in the intergrain space of the CaCu3Ti4O12-CuO ceramics. In this connection, we proposed a simple method for estimating the content of copper oxide in the CaCu3Ti4O12-CuO composite. The processes of evaporation of CaCu3Ti4O12 in the temperature range of 1500–2100 K were studied by high-temperature mass spectrometry. In the temperature range of 1500–1750 K, easily volatilized copper oxide was evaporated selectively from the calcium copper titanate. At the temperature of 2100 K, atomic calcium and titanium oxides, TiO and TiO2, were present in the vapor.

AB - Thermal stability of calcium copper titanate was studied by differential scanning calorimetry, thermogravimetry and high-temperature mass spectrometry. Calcium copper titanate (CCTO) had no thermal effects and mass losses caused by thermal dissociation or any phase transitions, besides melting, in the temperature range of 298–1423 K. The melting point of calcium copper titanate is 1398 K. The endothermic effect at 1250 K was associated with the decomposition of copper (II) oxide segregated in the intergrain space of the CaCu3Ti4O12-CuO ceramics. In this connection, we proposed a simple method for estimating the content of copper oxide in the CaCu3Ti4O12-CuO composite. The processes of evaporation of CaCu3Ti4O12 in the temperature range of 1500–2100 K were studied by high-temperature mass spectrometry. In the temperature range of 1500–1750 K, easily volatilized copper oxide was evaporated selectively from the calcium copper titanate. At the temperature of 2100 K, atomic calcium and titanium oxides, TiO and TiO2, were present in the vapor.

KW - Calcium copper titanate

KW - High-temperature mass-spectrometry

KW - Thermal analysis

KW - Thermal properties

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DO - 10.1016/j.ceramint.2018.08.088

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