α‐Alumina and spinel react into single‐phase high‐alumina spinel in &lt;3&nbsp;seconds during flash sintering

Kok, David; Yadav, Devinder; Sortino, Emanuele; McCormack, Scott J.; Tseng, Kuo‐Pin; Kriven, Waltraud M.; Raj, Rishi; Mecartney, Martha L.

doi:10.1111/jace.15927

α‐Alumina and spinel react into single‐phase high‐alumina spinel in <3 seconds during flash sintering

Journal Article · Thu Jul 26 00:00:00 EDT 2018 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/jace.15927· OSTI ID:1461713

^[1]; Yadav, Devinder ^[2]; Sortino, Emanuele ^[2]; McCormack, Scott J. ^[3]; Tseng, Kuo‐Pin ^[3]; ^[3]; ^[2]; Mecartney, Martha L. ^[1]

Department of Chemical Engineering and Material Science University of California Irvine California
Department of Mechanical Engineering University of Colorado at Boulder Boulder Colorado
Department of Material Science and Engineering University of Illinois at Urbana‐Champaign Urbana Illinois

Abstract

In situ X‐ray diffraction measurements at the Advanced Photon Source show that α‐Al ₂ O ₃ and MgAl ₂ O ₄ react nearly instantaneously and completely, and nearly completely to form single‐phase high‐alumina spinel during voltage‐to‐current type of flash sintering experiments. The initial sample was constituted from powders of α‐Al ₂ O ₃ , MgAl ₂ O ₄ spinel, and cubic 8 mol% Y ₂ O ₃ ‐stabilized ZrO ₂ (8 YSZ ) mixed in equal volume fractions, the spinel to alumina molar ratio being 1:1.5. Specimen temperature was measured by thermal expansion of the platinum standard. These measurements correlated well with a black‐body radiation model, using appropriate values for the emissivity of the constituents. Temperatures of 1600‐1736°C were reached during the flash, which promoted the formation of alumina‐rich spinel. In a second set of experiments, the flash was induced in a current‐rate method where the current flowing through the specimen is controlled and increased at a constant rate. In these experiments, we observed the formation of two different compositions of spinel, MgO•3Al ₂ O ₃ and MgO•1.5Al ₂ O ₃ , which evolved into a single composition of MgO•2.5Al ₂ O ₃ as the current continued to increase. In summary, flash sintering is an expedient way to create single‐phase, alumina‐rich spinel.

View Accepted Manuscript (Publisher)

Sponsoring Organization:: USDOE

Grant/Contract Number:: NONE; AC02-06CH11357

OSTI ID:: 1461713

Alternate ID(s):: OSTI ID: 1502190

Journal Information:: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 2 Vol. 102; ISSN 0002-7820

Publisher:: Wiley-BlackwellCopyright Statement

Country of Publication:: United States

Language:: English

References (39)

Platinum?A thermal expansion reference material Kirby, R. K. International Journal of Thermophysics, Vol. 12, Issue 4 https://doi.org/10.1007/BF00534223	journal	July 1991
Corrosion of high alumina and near stoichiometric spinels in iron-containing silicate slags Sarpoolaky, H.; Zhang, S.; Lee, W. E. Journal of the European Ceramic Society, Vol. 23, Issue 2 https://doi.org/10.1016/S0955-2219(02)00170-X	journal	February 2003
Thermal runaway, flash sintering and asymmetrical microstructural development of ZnO and ZnO–Bi2O3 under direct currents Zhang, Yuanyao; Jung, Jae-Il; Luo, Jian Acta Materialia, Vol. 94 https://doi.org/10.1016/j.actamat.2015.04.018	journal	August 2015
Structure, thermal expansion and optical property of alumina-rich spinel substrate Tang, Huili; Xu, Jun; Li, Hongjun Journal of Alloys and Compounds, Vol. 479, Issue 1-2 https://doi.org/10.1016/j.jallcom.2008.12.140	journal	June 2009
Microstructural development of interface layers between co-sintered alumina and spinel compacts Yalamac, Emre; Carry, Claude; Akkurt, Sedat Journal of the European Ceramic Society, Vol. 31, Issue 9 https://doi.org/10.1016/j.jeurceramsoc.2011.03.020	journal	August 2011
Field assisted and flash sintering of alumina and its relationship to conductivity and MgO-doping Cologna, Marco; Francis, John S. C.; Raj, Rishi Journal of the European Ceramic Society, Vol. 31, Issue 15, p. 2827-2837 https://doi.org/10.1016/j.jeurceramsoc.2011.07.004	journal	December 2011
Joule heating during flash-sintering Raj, Rishi Journal of the European Ceramic Society, Vol. 32, Issue 10 https://doi.org/10.1016/j.jeurceramsoc.2012.02.030	journal	August 2012
Preliminary investigation of flash sintering of SiC Zapata-Solvas, E.; Bonilla, S.; Wilshaw, P. R. Journal of the European Ceramic Society, Vol. 33, Issue 13-14 https://doi.org/10.1016/j.jeurceramsoc.2013.04.023	journal	November 2013
Electric field-assisted flash sintering of tin dioxide Muccillo, R.; Muccillo, E. N. S. Journal of the European Ceramic Society, Vol. 34, Issue 4 https://doi.org/10.1016/j.jeurceramsoc.2013.09.017	journal	April 2014
Densification behaviour and microstructural development in undoped yttria prepared by flash-sintering Yoshida, Hidehiro; Sakka, Yoshio; Yamamoto, Takahisa Journal of the European Ceramic Society, Vol. 34, Issue 4 https://doi.org/10.1016/j.jeurceramsoc.2013.10.031	journal	April 2014
Flash-sintering of MnCo2O4 and its relation to phase stability Gaur, Anshu; Sglavo, Vincenzo M. Journal of the European Ceramic Society, Vol. 34, Issue 10 https://doi.org/10.1016/j.jeurceramsoc.2014.02.012	journal	September 2014
Field assisted sintering of ceramic constituted by alumina and yttria stabilized zirconia Naik, Kiran S.; Sglavo, Vincenzo M.; Raj, Rishi Journal of the European Ceramic Society, Vol. 34, Issue 10 https://doi.org/10.1016/j.jeurceramsoc.2014.02.042	journal	September 2014
Flash sintering of potassium-niobate Shomrat, Neta; Baltianski, Sioma; Randall, Clive A. Journal of the European Ceramic Society, Vol. 35, Issue 7 https://doi.org/10.1016/j.jeurceramsoc.2015.01.017	journal	July 2015
Flash sintering incubation in Al2O3/TZP composites Bichaud, E.; Chaix, J. M.; Carry, C. Journal of the European Ceramic Society, Vol. 35, Issue 9 https://doi.org/10.1016/j.jeurceramsoc.2015.02.033	journal	September 2015
Electroluminescence and the measurement of temperature during Stage III of flash sintering experiments Terauds, Kalvis; Lebrun, Jean-Marie; Lee, Hyun-Hwi Journal of the European Ceramic Society, Vol. 35, Issue 11 https://doi.org/10.1016/j.jeurceramsoc.2015.03.040	journal	October 2015
Phase transformation in the alumina–titania system during flash sintering experiments Jha, S. K.; Lebrun, J. M.; Raj, R. Journal of the European Ceramic Society, Vol. 36, Issue 3 https://doi.org/10.1016/j.jeurceramsoc.2015.10.006	journal	February 2016
Flash sintering of lead zirconate titanate (PZT) ceramics: Influence of electrical field and current limit on densification and grain growth Su, Xinghua; Bai, Ge; Jia, Yongjie Journal of the European Ceramic Society, Vol. 38, Issue 10 https://doi.org/10.1016/j.jeurceramsoc.2018.04.007	journal	August 2018
Grain growth model for electric field-assisted processing and flash sintering of materials Narayan, J. Scripta Materialia, Vol. 68, Issue 10 https://doi.org/10.1016/j.scriptamat.2013.01.008	journal	May 2013
Current-induced abnormal and oriented grain growth in corundum upon flash sintering Biesuz, Mattia; Sglavo, Vincenzo M. Scripta Materialia, Vol. 150 https://doi.org/10.1016/j.scriptamat.2018.03.004	journal	June 2018
Defect structure of alumina-rich nonstoichiometric magnesium aluminate spinel Okuyama, Y.; Kurita, N.; Fukatsu, N. Solid State Ionics, Vol. 177, Issue 1-2 https://doi.org/10.1016/j.ssi.2005.09.013	journal	January 2006
Quadrupole lamp furnace for high temperature (up to 2050K) synchrotron powder x-ray diffraction studies in air in reflection geometry Sarin, P.; Yoon, W.; Jurkschat, K. Review of Scientific Instruments, Vol. 77, Issue 9 https://doi.org/10.1063/1.2349600	journal	September 2006
Non-stoichiometry in MgAl ₂ O ₄ spinel Murphy, S. T.; Gilbert, C. A.; Smith, R. Philosophical Magazine, Vol. 90, Issue 10 https://doi.org/10.1080/14786430903341402	journal	March 2010
Flash sintering of ceramic materials Dancer, C. E. J. Materials Research Express, Vol. 3, Issue 10 https://doi.org/10.1088/2053-1591/3/10/102001	journal	October 2016
Determination of Spectral Emissivity of Ceramic Bodies at Elevated Temperatures Blair, G. Richard Journal of the American Ceramic Society, Vol. 43, Issue 4 https://doi.org/10.1111/j.1151-2916.1960.tb12981.x	journal	April 1960
Structure of Spinel Sickafus, Kurt E.; Wills, John M.; Grimes, Norman W. Journal of the American Ceramic Society, Vol. 82, Issue 12 https://doi.org/10.1111/j.1151-2916.1999.tb02241.x	journal	December 1999
Transformation Toughening in Zirconia-Containing Ceramics Hannink, Richard H. J.; Kelly, Patrick M.; Muddle, Barry C. Journal of the American Ceramic Society, Vol. 83, Issue 3 https://doi.org/10.1111/j.1151-2916.2000.tb01221.x	journal	March 2000
Flash Sintering of Nanograin Zirconia in <5 s at 850°C Cologna, Marco; Rashkova, Boriana; Raj, Rishi Journal of the American Ceramic Society, Vol. 93, Issue 11, p. 3556-3559 https://doi.org/10.1111/j.1551-2916.2010.04089.x	journal	September 2010
Flash-Sintering of Cubic Yttria-Stabilized Zirconia at 750°C for Possible Use in SOFC Manufacturing Cologna, Marco; Prette, Andre L. G.; Raj, Rishi Journal of the American Ceramic Society, Vol. 94, Issue 2, p. 316-319 https://doi.org/10.1111/j.1551-2916.2010.04267.x	journal	January 2011
Enhanced Grain Boundary Mobility in Yttria-Stabilized Cubic Zirconia under an Electric Current Kim, Seung-Wan; Kim, Soo Gil; Jung, Jae-Il Journal of the American Ceramic Society, Vol. 94, Issue 12 https://doi.org/10.1111/j.1551-2916.2011.04800.x	journal	August 2011
Defect Structure of Flash-Sintered Strontium Titanate Karakuscu, Aylin; Cologna, Marco; Yarotski, Dmitry Journal of the American Ceramic Society, Vol. 95, Issue 8 https://doi.org/10.1111/j.1551-2916.2012.05240.x	journal	May 2012
The Effect of Electric Field on Sintering and Electrical Conductivity of Titania Jha, Shikhar K.; Raj, Rishi Journal of the American Ceramic Society, Vol. 97, Issue 2 https://doi.org/10.1111/jace.12682	journal	December 2013
Flash Sintering of Nanocrystalline Zinc Oxide and its Influence on Microstructure and Defect Formation Schmerbauch, Christoph; Gonzalez-Julian, Jesus; Röder, Robert Journal of the American Ceramic Society, Vol. 97, Issue 6 https://doi.org/10.1111/jace.12972	journal	May 2014
Emergence and Extinction of a New Phase During On–Off Experiments Related to Flash Sintering of 3 YSZ Lebrun, Jean‐Marie; Morrissey, Timothy G.; Francis, John S. C. Journal of the American Ceramic Society, Vol. 98, Issue 5 https://doi.org/10.1111/jace.13476	journal	January 2015
Flash Sintering of (La, Sr)(Co, Fe)O ₃ -Gd-Doped CeO ₂ Composite Gaur, Anshu; Sglavo, Vincenzo M. Journal of the American Ceramic Society, Vol. 98, Issue 6 https://doi.org/10.1111/jace.13532	journal	March 2015
Flash-sintering of magnesium aluminate spinel (MgAl ₂ O ₄ ) ceramics Yoshida, Hidehiro; Biswas, Papiya; Johnson, Roy Journal of the American Ceramic Society, Vol. 100, Issue 2 https://doi.org/10.1111/jace.14616	journal	October 2016
Flash sintering of a three‐phase alumina, spinel, and yttria‐stabilized zirconia composite Kok, David; Jha, Shikhar Krishn; Raj, Rishi Journal of the American Ceramic Society, Vol. 100, Issue 7 https://doi.org/10.1111/jace.14818	journal	April 2017
In‐situ measurements of lattice expansion related to defect generation during flash sintering Lebrun, J. ‐M.; Hellberg, C. S.; Jha, S. K. Journal of the American Ceramic Society, Vol. 100, Issue 11 https://doi.org/10.1111/jace.15071	journal	July 2017
Effect of Aging on Yttria-Stabilized Zirconia Kondoh, Junya Journal of The Electrochemical Society, Vol. 145, Issue 5 https://doi.org/10.1149/1.1838515	journal	January 1998
Kationenverteilung und Strukturbeziehungen in Mg-Al-Spinellen Jagodzinski, H.; Saalfeld, H. Zeitschrift für Kristallographie, Vol. 110, Issue 1-6 https://doi.org/10.1524/zkri.1958.110.1-6.197	journal	January 1958

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