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In this paper, the structural properties of TiAl3 intermetallics are investigated by the plane-wave pseudopotential density functional theory method. The calculated results are consistent with experimental and other theoretical ones. Through the quasi-harmonic Debye model we calculate the thermodynamic properties and obtain the dependences of relative volume V/V0 on pressure P and temperture T, as well as the thermal expansion and specific heat coefficients under different temperatures and pressures. For the calculated results of TiAl, we find that the increase rate of thermal expansion coefficient of TiAl under the increase of temperature is higher than that of TiAl3, and further, the effect of temperature weakens with the increase of pressure. The specific heat of TiAl3 is nearly twice that of TiAl.
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Keywords:
- structural properties /
- thermodynamic properties /
- first-principles /
- high pressure
[1] Zhang Y G, Han Y F, Chen G L 2001 Structural Materials of Intermetallics (Beijing: National Defense Industry Press) (in Chinese) [张永刚, 韩雅芳, 陈国良 2001 金属间化合物结构材料 (北京: 国防工业出版社)]
[2] Yamaguchi M, Umakoshi Y, Yamane T 1987 Philos. Mag. A 55 301
[3] Asta M, Fontaine D, Schilfgaarde M, Sluiter M, Methfessel M 1992 Phys. Rev. B 46 5055
[4] Bastow T J, Foewood C T, Gibson M A, Smith M E 1998 Phys. Rev. B 58 2988
[5] Amador C, Hoyt J J, Chakoumakos B C, de Fontaine D 1995 Phys. Rev. Lett. 74 4955
[6] Lue C S, Xie B X, Horng S N, Su J H, Lin J Y 2005 Phys. Rev. B 71 195104
[7] Saniz R, Ye L H, Shishidou T, Freeman A J 2006 Phys. Rev. B 72 014209
[8] Hong T, Watson-Yang T J, Guo X Q 1991 Phys. Rev. B 43 1940
[9] Viala J C, Peillon N, Clochefert L, Bouix J 1995 Mater. Sci. Eng. A 203 222
[10] Zhu G L, Dai Y B, Shu D, Xiao Y P 2011 Comput. Mater. Sci. 50 2636
[11] Zhu G L, Shu D, Dai Y B, Wang J, Sun B D 2009 Acta Phys. Sin. 58 S210 (in Chinese) [祝国梁, 疏达, 戴永兵, 王俊, 孙宝德 2009 58 S210]
[12] Kogachi M, Kameyama A 1995 Intermetailics 3 327
[13] Ming X, Wang X L, Du F, Chen G, Wang C Z, Yin J W 2012 Acta Phys. Sin. 61 097102 [明星, 王小兰, 杜菲, 陈岗, 王春忠, 尹建武 2012 61 097102]
[14] Wang B, Liu Y, Ye J W 2012 Acta Phys. Sin. 61 186501 (in Chinese) [王斌, 刘颖, 叶金文 2012 61 186501]
[15] Du H J, Guo L C, Li D C, Yu D L, He J L 2009 Chin. Phys. Lett. 26 016403
[16] Hao A M, Zhou T J, Zhu Y, Zhang X Y, Liu R P 2011 Chin. Phys. B 20 047103
[17] Vanderbilt D 1990 Phys. Rev. B 41 7892
[18] Perdew J P, Burke K, Ernzerhof M 1996 Phys. Rev. Lett. 77 3865
[19] Monkhorst H J, Pack J D 1976 Phys. Rev. B 13 5188
[20] Blanco M A, Francisco E, Luana V 2004 Comput. Phys. Commun. 158 57
[21] Blanco M A, Martín Pendás A, Francisco E 1996 J. Molec. Struct.: Theochem 368 245
[22] Flórez M, Recio J M, Francisco E, Blanco M A 2002 Phys. Rev. B 66 144112
[23] Poirer J P 1991 Introduction to the Physics of the Earth's Interior (England: Cambridge University Press)
[24] Francisco E, Blanco M A, Sanjurjo G 2001 Phys. Rev. B 63 094107
[25] Murnaghan F D 1944 Proc. Natl. Acad. Sci. USA 30 244
[26] Srinivasan S, Desch P B, Schwartz R B 1991 Scr. Metall. Mater. 25 2513
[27] Nakamura M, Kimura K 1991 J. Mater. Sci. 26 2208
[28] Ghosh G, van de Walle A, Asta M 2007 J. Phase. Equil. Diffu. 28 9
[29] Zhang H, Wang S Q 2010 J. Mater. Sci. Technol. 26 1071
[30] Boulechfar R, Ghemid S, Meradji H, Bouhafs B 2010 Physica B 405 4045
[31] Krajéí M, Hafner J 2002 J. Phys. Condens. Matter 14 024101
[32] Li X S, Wang H Y, Li C Y, Mi G F, Hu Q K 2012 Commun. Theor. Phys. 57 141
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[1] Zhang Y G, Han Y F, Chen G L 2001 Structural Materials of Intermetallics (Beijing: National Defense Industry Press) (in Chinese) [张永刚, 韩雅芳, 陈国良 2001 金属间化合物结构材料 (北京: 国防工业出版社)]
[2] Yamaguchi M, Umakoshi Y, Yamane T 1987 Philos. Mag. A 55 301
[3] Asta M, Fontaine D, Schilfgaarde M, Sluiter M, Methfessel M 1992 Phys. Rev. B 46 5055
[4] Bastow T J, Foewood C T, Gibson M A, Smith M E 1998 Phys. Rev. B 58 2988
[5] Amador C, Hoyt J J, Chakoumakos B C, de Fontaine D 1995 Phys. Rev. Lett. 74 4955
[6] Lue C S, Xie B X, Horng S N, Su J H, Lin J Y 2005 Phys. Rev. B 71 195104
[7] Saniz R, Ye L H, Shishidou T, Freeman A J 2006 Phys. Rev. B 72 014209
[8] Hong T, Watson-Yang T J, Guo X Q 1991 Phys. Rev. B 43 1940
[9] Viala J C, Peillon N, Clochefert L, Bouix J 1995 Mater. Sci. Eng. A 203 222
[10] Zhu G L, Dai Y B, Shu D, Xiao Y P 2011 Comput. Mater. Sci. 50 2636
[11] Zhu G L, Shu D, Dai Y B, Wang J, Sun B D 2009 Acta Phys. Sin. 58 S210 (in Chinese) [祝国梁, 疏达, 戴永兵, 王俊, 孙宝德 2009 58 S210]
[12] Kogachi M, Kameyama A 1995 Intermetailics 3 327
[13] Ming X, Wang X L, Du F, Chen G, Wang C Z, Yin J W 2012 Acta Phys. Sin. 61 097102 [明星, 王小兰, 杜菲, 陈岗, 王春忠, 尹建武 2012 61 097102]
[14] Wang B, Liu Y, Ye J W 2012 Acta Phys. Sin. 61 186501 (in Chinese) [王斌, 刘颖, 叶金文 2012 61 186501]
[15] Du H J, Guo L C, Li D C, Yu D L, He J L 2009 Chin. Phys. Lett. 26 016403
[16] Hao A M, Zhou T J, Zhu Y, Zhang X Y, Liu R P 2011 Chin. Phys. B 20 047103
[17] Vanderbilt D 1990 Phys. Rev. B 41 7892
[18] Perdew J P, Burke K, Ernzerhof M 1996 Phys. Rev. Lett. 77 3865
[19] Monkhorst H J, Pack J D 1976 Phys. Rev. B 13 5188
[20] Blanco M A, Francisco E, Luana V 2004 Comput. Phys. Commun. 158 57
[21] Blanco M A, Martín Pendás A, Francisco E 1996 J. Molec. Struct.: Theochem 368 245
[22] Flórez M, Recio J M, Francisco E, Blanco M A 2002 Phys. Rev. B 66 144112
[23] Poirer J P 1991 Introduction to the Physics of the Earth's Interior (England: Cambridge University Press)
[24] Francisco E, Blanco M A, Sanjurjo G 2001 Phys. Rev. B 63 094107
[25] Murnaghan F D 1944 Proc. Natl. Acad. Sci. USA 30 244
[26] Srinivasan S, Desch P B, Schwartz R B 1991 Scr. Metall. Mater. 25 2513
[27] Nakamura M, Kimura K 1991 J. Mater. Sci. 26 2208
[28] Ghosh G, van de Walle A, Asta M 2007 J. Phase. Equil. Diffu. 28 9
[29] Zhang H, Wang S Q 2010 J. Mater. Sci. Technol. 26 1071
[30] Boulechfar R, Ghemid S, Meradji H, Bouhafs B 2010 Physica B 405 4045
[31] Krajéí M, Hafner J 2002 J. Phys. Condens. Matter 14 024101
[32] Li X S, Wang H Y, Li C Y, Mi G F, Hu Q K 2012 Commun. Theor. Phys. 57 141
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