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Journal of Advanced Ceramics 2020, 9(6): 759-768 https://doi.org/10.1007/s40145-020-0412-7
Research Article | Open Access | Issue | Published: 23 December 2020

Synthesis, microstructure, and properties of high purity Mo2TiAlC2 ceramics fabricated by spark plasma sintering

Show Author's Information Yunhui NIUa,†,  Shuai FUb,†,  Kuibao ZHANGa,  Bo DAIa,  Haibin ZHANGc,  Salvatore GRASSOb,  Chunfeng HUb( )
State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China

† Yunhui Niu and Shuai Fu contributed equally to this work.

Keywords:
microstructure, synthesis, MAX phase, Mo2TiAlC2, properties
Cite this article:
NIU Y, FU S, ZHANG K, et al. Synthesis, microstructure, and properties of high purity Mo2TiAlC2 ceramics fabricated by spark plasma sintering. Journal of Advanced Ceramics, 2020, 9(6): 759-768. https://doi.org/10.1007/s40145-020-0412-7
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Abstract Full text About this article

The synthesis, microstructure, and properties of high purity dense bulk Mo2TiAlC2 ceramics were studied. High purity Mo2TiAlC2 powder was synthesized at 1873 K starting from Mo, Ti, Al, and graphite powders with a molar ratio of 2:1:1.25:2. The synthesis mechanism of Mo2TiAlC2 was explored by analyzing the compositions of samples sintered at different temperatures. It was found that the Mo2TiAlC2 phase was formed from the reaction among Mo3Al2C, Mo2C, TiC, and C. Dense Mo2TiAlC2 bulk sample was prepared by spark plasma sintering (SPS) at 1673 K under a pressure of 40 MPa. The relative density of the dense sample was 98.3%. The mean grain size was 3.5 μm in length and 1.5 μm in width. The typical layered structure could be clearly observed. The electrical conductivity of Mo2TiAlC2 ceramic measured at the temperature range of 2-300 K decreased from 0.95 × 106 to 0.77 × 106 Ω-1·m-1. Thermal conductivity measured at the temperature range of 300-1273 K decreased from 8.0 to 6.4 W·(m·K)-1. The thermal expansion coefficient (TEC) of Mo2TiAlC2 measured at the temperature of 350-1100 K was calculated as 9.0 × 10-6 K-1. Additionally, the layered structure and fine grain size benefited for excellent mechanical properties of low intrinsic Vickers hardness of 5.2 GPa, high flexural strength of 407.9 MPa, high fracture toughness of 6.5 MPa·m1/2, and high compressive strength of 1079 MPa. Even at the indentation load of 300 N, the residual flexural strength could hold 84% of the value of undamaged one, indicating remarkable damage tolerance. Furthermore, it was confirmed that Mo2TiAlC2 ceramic had a good oxidation resistance below 1200 K in the air.


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Synthesis, microstructure, and properties of high purity Mo2TiAlC2 ceramics fabricated by spark plasma sintering

Show Author's information Yunhui NIUa,†, Shuai FUb,†, Kuibao ZHANGa, Bo DAIa, Haibin ZHANGc, Salvatore GRASSOb, Chunfeng HUb( )
State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China

† Yunhui Niu and Shuai Fu contributed equally to this work.

Abstract

The synthesis, microstructure, and properties of high purity dense bulk Mo2TiAlC2 ceramics were studied. High purity Mo2TiAlC2 powder was synthesized at 1873 K starting from Mo, Ti, Al, and graphite powders with a molar ratio of 2:1:1.25:2. The synthesis mechanism of Mo2TiAlC2 was explored by analyzing the compositions of samples sintered at different temperatures. It was found that the Mo2TiAlC2 phase was formed from the reaction among Mo3Al2C, Mo2C, TiC, and C. Dense Mo2TiAlC2 bulk sample was prepared by spark plasma sintering (SPS) at 1673 K under a pressure of 40 MPa. The relative density of the dense sample was 98.3%. The mean grain size was 3.5 μm in length and 1.5 μm in width. The typical layered structure could be clearly observed. The electrical conductivity of Mo2TiAlC2 ceramic measured at the temperature range of 2-300 K decreased from 0.95 × 106 to 0.77 × 106 Ω-1·m-1. Thermal conductivity measured at the temperature range of 300-1273 K decreased from 8.0 to 6.4 W·(m·K)-1. The thermal expansion coefficient (TEC) of Mo2TiAlC2 measured at the temperature of 350-1100 K was calculated as 9.0 × 10-6 K-1. Additionally, the layered structure and fine grain size benefited for excellent mechanical properties of low intrinsic Vickers hardness of 5.2 GPa, high flexural strength of 407.9 MPa, high fracture toughness of 6.5 MPa·m1/2, and high compressive strength of 1079 MPa. Even at the indentation load of 300 N, the residual flexural strength could hold 84% of the value of undamaged one, indicating remarkable damage tolerance. Furthermore, it was confirmed that Mo2TiAlC2 ceramic had a good oxidation resistance below 1200 K in the air.

Keywords: microstructure, synthesis, MAX phase, Mo2TiAlC2, properties

References(55)

[1]
X Li, BY Liang, ZX Li. Combustion synthesis of Ti2SC. Int J Mater Res 2013, 104: 1038-1040.
DOI Google Scholar
[2]
BS Tunca, T Lapauw, OM Karakulina, et al. Synthesis of MAX phases in the Zr-Ti-Al-C system. Inorg Chem 2017, 56: 3489-3498.
DOI Google Scholar
[3]
A Mockute, M Dahlqvist, J Emmerlich, et al. Synthesis and ab initio calculations of nanolaminated (Cr,Mn)2AlC compounds. Phys Rev B 2013, 87: 094113.
DOI Google Scholar
[4]
T Lapauw, K Lambrinou, T Cabioc'H, et al. Synthesis of the new MAX phase Zr2AlC. J Eur Ceram Soc 2016, 36: 1847-1853.
DOI Google Scholar
[5]
T Lapauw, J Halim, J Lu, et al. Synthesis of the novel Zr3AlC2 MAX phase. J Eur Ceram Soc 2016, 36: 943-947.
DOI Google Scholar
[6]
V Gauthier-Brunet, T Cabioc'H, P Chartier, et al. Reaction synthesis of layered ternary Ti2AlC ceramic. J Eur Ceram Soc 2009, 29: 187-194.
DOI Google Scholar
[7]
S Dubois, GP Bei, C Tromas, et al. Synthesis, microstructure, and mechanical properties of Ti3Sn(1−x)AlxC2 MAX phase solid solutions. Int J Appl Ceram 2010, 7: 719-729.
DOI Google Scholar
[8]
M Opeka, J Zaykoski, I Talmy, et al. Synthesis and characterization of Zr2SC ceramics. Mat Sci E A-Struct 2011, 528: 1994-2001.
DOI Google Scholar
[9]
HI Faraoun, FZ Abderrahim, C Esling. First principle calculations of MAX ceramics Cr2GeC, V2GeC and their substitutional solid solutions. Comput Mater Sci 2013, 74: 40-49.
DOI Google Scholar
[10]
Q Wang, CF Hu, S Cai, et al. Synthesis of high purity Ti3SiC2 by microwave sintering. Int J Appl Ceram Tec 2014, 11: 911-918.
DOI Google Scholar
[11]
MA Saeed, FA Deorsola, RM Rashad. Optimization of the Ti3SiC2 MAX phase synthesis. Int J Refract Met H 2012, 35: 127-131.
DOI Google Scholar
[12]
SB Li, HX Zhai. Synthesis and reaction mechanism of Ti3SiC2 by mechanical alloying of elemental Ti, Si, and C powders. J Am Ceram Soc 2005, 88: 2092-2098.
DOI Google Scholar
[13]
M Yan, YL Chen, BC Mei, et al. Synthesis of high-purity Ti2AlN ceramic by hot pressing. T Nonferr Metal Soc 2008, 18: 82-85.
DOI Google Scholar
[14]
Y Liu, LL Zhang, WW Xiao, et al. Rapid synthesis of Ti2AlN ceramic via thermal explosion. Mater Lett 2015, 149: 5-7.
DOI Google Scholar
[15]
JF Zhu, JQ Gao, JF Yang, et al. Synthesis and microstructure of layered-ternary Ti2AlC ceramic by high energy milling and hot pressing. Mater Sci Eng: A 2008, 490: 62-65.
DOI Google Scholar
[16]
CF Hu, YC Zhou, YW Bao. Material removal and surface damage in EDM of Ti3SiC2 ceramic. Ceram Int 2008, 34: 537-541.
DOI Google Scholar
[17]
C Rawn, M Barsoum, T El-Raghy, et al. Structure of Ti4AlN3—A layered Mn+1AXn nitride. Mater Res Bull 2000, 35: 1785-1796.
DOI Google Scholar
[18]
YC Zhou, ZM Sun. Microstructure and mechanism of damage tolerance for Ti3SiC2 bulk ceramics. Mater Res Innov 1999, 2: 360-363.
DOI Google Scholar
[19]
MW Barsoum, HI Yoo, IK Polushina, et al. Electrical conductivity, thermopower, and Hall effect of Ti3AlC2, Ti4AlN3, and Ti3SiC2. Phys Rev B 2000, 62: 10194.
DOI Google Scholar
[20]
T El-Raghy, A Zavaliangos, MW Barsoum, et al. Damage mechanisms around hardness indentations in Ti3SiC2. J Am Ceram Soc 2005, 80: 513-516.
DOI Google Scholar
[21]
CC Lai, A Petruhins, J Lu, et al. Thermally induced substitutional reaction of Fe into Mo2GaC thin films. Mater Res Lett 2017, 5: 533-539.
DOI Google Scholar
[22]
S Amini, AG Zhou, S Gupta, et al. Synthesis and elastic and mechanical properties of Cr2GeC. J Mater Res 2008, 23: 2157-2165.
DOI Google Scholar
[23]
ZJ Lin, YC Zhou, MS Li. Synthesis, microstructure, and property of Cr2AlC. J Mater Sci Tech 2007, 13: 721-746.
Google Scholar
[24]
XC Li, LL Zheng, YH Qian, et al. Breakaway oxidation of Ti3AlC2 during long-term exposure in air at 1100 ℃. Corros Sci 2016, 104: 112-122.
DOI Google Scholar
[25]
XH Wang, YC Zhou. Oxidation behavior of Ti3AlC2 at 1000-1400 ℃ in air. Corros Sci 2003, 45: 891-907.
DOI Google Scholar
[26]
XK Qian, XD He, YB Li, et al. Cyclic oxidation of Ti3AlC2 at 1000-1300 ℃ in air. Corros Sci 2011, 53: 290-295.
DOI Google Scholar
[27]
DJ Tallman, B Anasori, MW Barsoum. A critical review of the oxidation of Ti2AlC, Ti3AlC2 and Cr2AlC in air. Mater Res Lett 2013, 1: 115-125.
DOI Google Scholar
[28]
XH Wang, YC Zhou. Layered machinable and electrically conductive Ti2AlC and Ti3AlC2 ceramics: A review. J Mater Sci Technol 2010, 26: 385-416.
DOI Google Scholar
[29]
S Amini, MW Barsoum, T El-Raghy. Synthesis and mechanical properties of fully dense Ti2SC. J Am Ceram Soc 2007, 90: 3953-3958.
Google Scholar
[30]
CF Hu, LF He, J Zhang, et al. Microstructure and properties of bulk Ta2AlC ceramic synthesized by an in situ reaction/hot pressing method. J Eur Ceram Soc 2008, 28: 1679-1685.
DOI Google Scholar
[31]
CF Hu, LF He, MY Liu, et al. In situ reaction synthesis and mechanical properties of V2AlC. J Am Ceram Soc 2008, 91: 4029-4035.
DOI Google Scholar
[32]
ZM Sun, D Music, R Ahuja, et al. Electronic origin of shearing in M2AC (M = Ti, V, Cr, A = Al, Ga). J Phys: Condens Matter 2005, 17: 7169-7176.
DOI Google Scholar
[33]
D Music, JM Schneider. The correlation between the electronic structure and elastic properties of nanolaminates. JOM 2007, 59: 60-64.
DOI Google Scholar
[34]
ZJ Lin, YC Zhou, MS Li, et al. In-situ hot pressing/ solid-liquid reaction synthesis of bulk Cr2AlC. Zeitschrift Für Met 2005, 96: 291-296.
DOI Google Scholar
[35]
J Wang, Y Zhou. Dependence of elastic stiffness on electronic band structure of nanolaminate M2A1C (M = Ti, V, Nb, and Cr) ceramics. Phys Rev B 2004, 69: 214111.
DOI Google Scholar
[36]
YC Zhou, FL Meng, J Zhang. New MAX-phase compounds in the V-Cr-Al-C system. J Am Ceram Soc 2008, 91: 1357-1360.
DOI Google Scholar
[37]
LY Zheng, JM Wang, XP Lu, et al. (Ti0.5Nb0.5)5AlC4: A new-layered compound belonging to MAX phases. J Am Ceram Soc 2010, 93: 3068-3071.
DOI Google Scholar
[38]
B Anasori, M Dahlqvist, J Halim, et al. Experimental and theoretical characterization of ordered MAX phases Mo2TiAlC2 and Mo2Ti2AlC3. J Appl Phys 2015, 118: 094304.
DOI Google Scholar
[39]
B Anasori, J Halim, J Lu, et al. Mo2TiAlC2: A new ordered layered ternary carbide. Scripta Mater 2015, 101: 5-7.
DOI Google Scholar
[40]
S Fu, YL Liu, HW Zhang, et al. Synthesis and characterization of high purity Mo2Ti2AlC3 ceramic. J Alloys Compd 2020, 815: 152485.
DOI Google Scholar
[41]
M Omori. Sintering, consolidation, reaction and crystal growth by the spark plasma system (SPS). Mater Sci Eng: A 2000, 287: 183-188.
DOI Google Scholar
[42]
V Mamedov. Spark plasma sintering as advanced PM sintering method. Powder Metall 2002, 45: 322-328.
DOI Google Scholar
[43]
YC Wang, ZY Fu. Study of temperature field in spark plasma sintering. Mater Sci Eng: B 2002, 90: 34-37.
DOI Google Scholar
[44]
M Tokita. Trends in advanced SPS Spark Plasma Sintering systems and FGM technology. J S Power Tech 1993, 30: 790-804.
DOI Google Scholar
[45]
PN Parrikar, HL Gao, M Radovic, et al. Static and dynamic thermo-mechanical behavior of Ti2AlC MAX phase and fiber reinforced Ti2AlC composites. In Dynamic Behavior of Materials. B Song, D Casem, J Kimberley, Eds. Cham: Springer International Publishing, 2015, 1: 9-14.
[46]
ES Choi, J Sung, QM Wang, et al. Material properties and machining performance of hybrid Ti2AlN bulk material for micro electrical discharge machining. Trans Nonferrous Met Soc China 2012, 22: 781-786.
DOI Google Scholar
[47]
M Griseri, BS Tunca, T Lapauw, et al. Synthesis, properties and thermal decomposition of the Ta4AlC3 MAX phase. J Eur Ceram Soc 2019, 39: 2973-2981.
DOI Google Scholar
[48]
T Lapauw, K Vanmeensel, K Lambrinou, et al. Rapid synthesis and elastic properties of fine-grained Ti2SnC produced by spark plasma sintering. J Alloys Compd 2015, 631: 72-76.
DOI Google Scholar
[49]
XM Duan, L Shen, DC Jia, et al. Synthesis of high-purity, isotropic or textured Cr2AlC bulk ceramics by spark plasma sintering of pressure-less sintered powders. J Eur Ceram Soc 2015, 35: 1393-1400.
DOI Google Scholar
[50]
Y Liu, YX Li, F Li, et al. Highly textured Ti2AlN ceramic prepared via thermal explosion followed by edge-free spark plasma sintering. Scripta Mater 2017, 136: 55-58.
DOI Google Scholar
[51]
X Wang, Y Zhou. Microstructure and properties of Ti3AlC2 prepared by the solid-liquid reaction synthesis and simultaneous in-situ hot pressing process. Acta Mater 2002, 50: 3143-3151.
DOI Google Scholar
[52]
MW Barsoum, CJ Rawn, T El-Raghy, et al. Thermal properties of Ti4AlN3. J Appl Phys 2000, 87: 8407-8414.
DOI Google Scholar
[53]
YF Li, B Xiao, L Sun, et al. Phonon spectrum, IR and Raman modes, thermal expansion tensor and thermal physical properties of M2TiAlC2 (M = Cr, Mo, W). Comput Mater Sci 2017, 134: 67-83.
DOI Google Scholar
[54]
CF Hu, ZJ Lin, LF He, et al. Physical and mechanical properties of bulk Ta4AlC3 ceramic prepared by an in situ reaction synthesis/hot-pressing method. J Am Ceram Soc 2007, 90: 2542-2548.
DOI Google Scholar
[55]
YM Gong, WB Tian, PG Zhang, et al. Slip casting and pressureless sintering of Ti3AlC2. J Adv Ceram 2019, 8: 367-376.
DOI Google Scholar
Publication history
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Publication history

Received: 12 May 2020
Revised: 13 August 2020
Accepted: 14 August 2020
Published: 23 December 2020
Issue date: December 2020

Copyright

© The Author(s) 2020

Acknowledgements

This study was supported by the Thousand Talents Program of Sichuan Province, the Open Project of State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials (17kffk01), the Outstanding Young Scientific and Technical Talents in Sichuan Province (2019JDJQ0009), and the National Natural Science Foundation of China (Nos. 51741208 and 52072311).

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