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ÉîÉî±±·½: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2012-07-18 20:37:03
ÉîÉî±±·½: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2012-07-18 20:37:03
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http://www.springerlink.com/content/u0556240484w2kmg/ Journal of Phase Equilibria Volume 22, Number 5 (2001), 544-551, DOI: 10.1361/105497101770332695 Basic And Applied Research Thermodynamic assessment of the Al-Zr binary system Tao Wang, Zhanpeng Jin and Ji-Cheng Zhao |

3Â¥2012-07-18 17:26:50
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L } bcc 1 Zr5Al3 29.5 25.9 37.5 1623 McPherson[11] 29.5 24.9 37.5 1621 This work Bcc 1 Zr5Al3 } Zr2Al 19.9 37.5 33.3 1488 Peruzzi[6] 20.3 37.5 33.3 1487 This work Bcc 1 Zr2Al } Zr3Al 12.0 33.3 25.0 1292 Peruzzi[6] 12.1 33.3 25.0 1292 This work Bcc 1 Zr3Al } hcp 6.8 25.0 8.3 1183 Peruzzi[6] 6.8 25.0 8.2 1183 This work L 1 Zr3Al2 } Zr5Al3 ,35(a) 40.0 37.5 1673(a) McPherson[11] 32.4 40.0 37.5 1676 This work Zr5Al3 } Zr2Al 1 Zr3Al2 37.5 33.3 40.0 ,1273 Potzschke[27] 37.5 33.3 40.0 1273 This work L 1 Zr5Al4 } Zr3Al2 ,39 44.4 40.0 1753 McPherson[11] 37.8 44.4 40.0 1753 This work Zr3Al2 1 Zr5Al4 } Zr4Al3 40.0 44.4 42.9 ,1303 Potzschke[27] 40.0 44.4 42.9 1304 This work Zr5Al4 } Zr4Al3 1 ZrAl 44.4 42.9 50.0 ,1273 Potzschke[27] 44.4 42.9 50.0 1272 This work L } Zr5Al4 ¼ 44.4 ¼ 1823(a) McPherson[11] ¼ 44.4 ¼ 1831 This work L } Zr5Al4 1 Zr2Al3 ,50 44.4 60.0 1758 McPherson[11] 51.0 44.4 60.0 1750 This work Zr5Al4 1 Zr2Al3 } ZrAl 44.4 60.0 50.0 1548(a) McPherson[11] 44.4 60.0 50.0 1548 This work L 1 ZrAl2 } Zr2Al3 ,59 66.7 60.0 1863 McPherson[11] 59.7 66.7 60.0 1865 This work L } ZrAl2 ¼ 66.7 ¼ 1933(a) McPherson[11] ¼ 66.7 ¼ 1931 This work L } ZrAl2 1 ZrAl3 73.5 66.7 75.0 1773 McPherson[11] 74.7 66.7 75.0 1856 This work L } ZrAl3 ¼ 75.0 ¼ 1853 McPherson[11] ¼ 75.0 ¼ 1856 This work ZrAl3 1 L } fcc 75.0 99.97 99.92 933.9 Fink[15] 75.0 99.97 99.92 933.8 This work (a) Slightly modified by Murray et al.[9] Table 2 Standard enthalpy of formation of the Zr-Al intermetallic compounds, kJ/(mole of atoms) Zr3Al ¼ ¼ ¼ ¼ 227.0 236.2 Zr2Al ¼ ¼ ¼ ¼ 233.4 248.4 Zr5Al3 248 ¼ ¼ ¼ 236.2 251.5 Zr3Al2 249 ¼ ¼ ¼ 238.4 255.2 Zr4Al3 ¼ ¼ ¼ ¼ ¼ 258.5 Zr5Al4 252 ¼ ¼ ¼ 241.0 255.4 ZrAl 253 ¼ ¼ ¼ 244.5 265.0 Zr2Al3 255 ¼ ¼ ¼ 246.9 256.6 ZrAl2 254 244 252.1 251.3 245.8 252.6 ZrAl3 249 244 248.4 ¼ 240.5 248.5 Liquid 0LLiquid Al,Zr 5 2207,140 1 42.911T 3. Thermodynamic Models 1LLiquid Al,Zr 5 222,643 1 11.442T 2LLiquid Al,Zr 5 156,610 2 7.807T Fcc 3.1 Solution Phases 0Lfcc Al,Zr 5 2152,947 1 21.300T Bcc The liquid, fcc(Al), bcc(Zr), and hcp(Zr) solution phases 0Lbcc Al,Zr 5 2165,348 1 13.235T 1Lbcc Al,Zr 5 236,570 2Lbcc Al,Zr 5 116,806 Hcp 0Lhcp Al,Zr 5 2166,254 1 13.235T Gam 5 xAl 8Ga Al 1 xZr 8Ga Zr 1 RT (xAl ln xAl 1 xZr ln xZr) 1Lhcp Al,Zr 5 236,570 2Lhcp Al,Zr 5 116,806 1 EG (Eq 1) Zr3Al 0GZr3Al Al:Zr 5 0.25 0Gfcc Al 1 0.75 0Ghcp Zr 2 36,163 1 4.421T Zr2Al Al:Zr 5 0.33333 0Gfcc Al 1 0.66667 0Ghcp Zr 2 48,358 1 6.492T Zr the structure a (a 5 Liquid, fcc, bcc, or hcp), Zr5Al3 Al:Zr 5 0.375 0Gfcc Al 1 0.625 0Ghcp Zr 2 51,484 1 5.749T Zr3Al2 0G Zr3Al2 Al:Zr 5 0.4 0Gfcc Al 1 0.6 0Ghcp Zr 2 55,180 1 6.734T 0GZr4Al3 Al:Zr 5 0.42857 0Gfcc Al 1 0.57143 0Ghcp Zr 2 58,480 1 8.236T Zr5Al4 0GZr5Al4 Al:Zr 5 0.44444 0Gfcc Al 1 0.55556 0Ghcp Zr 2 55,424 1 5.320T EG 5 xAlxZron i50 iL(xAl 2 xZr)i (Eq 2) ZrAl 0GZrAl Al:Zr 5 0.5 0Gfcc Al 1 0.5 0Ghcp Zr 2 64,950 1 11.014T Zr2Al3 0GZr2Al3 Al:Zr 5 0.6 0Gfcc Al 1 0.4 0Ghcp Zr 2 55,323 2 27.830T 1 4.329T ln T ZrAl2 0G ZrAl2 Al:Zr 5 0.66667 0Gfcc Al 1 0.33333 0Ghcp Zr 2 51,266 2 29.726T 1 4.417T ln T ZrAl a ZrAl3 Al:Zr 5 0.75 0Gfcc Al 1 0.25 0Ghcp Zr 2 47,381 2 24.373T 1 3.894T ln T |

2Â¥2012-07-18 17:25:12
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4Â¥2012-07-18 20:36:50













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