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joypark201銀蟲 (初入文壇)
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[求助]
gibbs程序計(jì)算晶體熱膨脹系數(shù)的問題 已有1人參與
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小弟比照文獻(xiàn),用gibbs程序計(jì)算Li2O的熱力學(xué)數(shù)據(jù)時(shí)發(fā)現(xiàn),熱容的計(jì)算沒有什么問題,熱膨脹系數(shù)的結(jié)果與文獻(xiàn)相差非常大,請(qǐng)問各位是什么原因? 具體如下: 以下是我的gibbs輸入文件 Li8O4 rutile phase. aiPI-uCHF calculation. Li8O4.out 12 119.5159992 -120.549122337 0 0 0.0593 11 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 16 0.0 100.0 200.0 300.0 400.0 500.0 600.0 700.0 800.0 900.0 1000.0 1100.0 1200.0 1300.0 1400.0 1500.0 21 3081.99933200000 -119.689489144000 2847.97944800000 -119.758891736000 2626.11660300000 -119.812307385000 2416.08589900000 -119.868339257000 2217.56330300000 -119.924208213000 2030.22456900000 -120.003857759000 1853.74545200000 -120.065440754000 1687.80171300000 -120.126716002000 1532.06910500000 -120.181554844000 1386.22337000000 -120.247264089000 1249.94027600000 -120.313690509000 1122.89557700000 -120.387970176000 1004.76501300000 -120.444355091000 895.224353000000 -120.494715789000 793.949351000000 -120.536582207000 700.615849000000 -120.549122337000 614.899317000000 -120.534557769000 536.475793000000 -120.480198997000 465.020945000000 -120.375277715000 400.210519000000 -120.175217869000 341.720277000000 -119.850212285000 由于計(jì)算的是Li8O4,gibbs計(jì)算得到的Cv和Cp需要同除以4,與文獻(xiàn)中數(shù)據(jù)吻合較好,但熱膨脹系數(shù)的數(shù)據(jù)變差極大,下面附上gibbs輸出文件和計(jì)算文獻(xiàn),請(qǐng)求高手指教解答啊。! |
木蟲 (著名寫手)

新蟲 (初入文壇)
木蟲 (正式寫手)
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