The thermodynamic factor in diffusion in the L1_2-type non-stoichiometricintermetallic compounds Ni_3Ga and Pt_3In was derived from the experimentally measured activities ofGa and In, respectively. The results show th...The thermodynamic factor in diffusion in the L1_2-type non-stoichiometricintermetallic compounds Ni_3Ga and Pt_3In was derived from the experimentally measured activities ofGa and In, respectively. The results show that the thermodynamic factor in diffusion in the Ni_3Gaand Pt_3In compounds exhibits the maximum near the stoichiometric composition with the variation ofcomposition over the compound region. The values indicate strong interaction between Ni and Gaatoms, as well as Pt and In atoms, respectively, as expected in ordered alloys.展开更多
At present CALPHAD (CALculation of PHAse Diagram) technique is notcapable of predicting whether there exists intermediate compound,much less predicting the formulae, the number, and the meltingcongruence of intermedi-...At present CALPHAD (CALculation of PHAse Diagram) technique is notcapable of predicting whether there exists intermediate compound,much less predicting the formulae, the number, and the meltingcongruence of intermedi- ate compounds. To solve this problem, a newapproach called the phase diagram evaluation by pattern recognition(PDEPR) was improved. The micro-parameters. Such as the radius andthe electronegativity of the different features in multi-dimensionalspace.展开更多
A kind of carbon-bering refractory (MA-C1) has been developed for smelting-reduction iron-making process and its physical chemistry properties were measured,Smilting-reduction slag (15 wt% FeO) resistance of the devel...A kind of carbon-bering refractory (MA-C1) has been developed for smelting-reduction iron-making process and its physical chemistry properties were measured,Smilting-reduction slag (15 wt% FeO) resistance of the developed refractory has been compared with commercially available refractories by curcible test,static slag soaking test and fractal dimension analyses,The results show that slag resistance of the developed refractories(MA-C1) is better than those of alumina-carbon refractory (AM-C1),alumina-magnasia-carbon brick (AM0(J)) ,and Si3N4-SiC brick.展开更多
基金This project is jointly supported by the National Natural Science Foundation of China (No. 29871005) the Science Foundation of Austria (No. P12962-CHE).
文摘The thermodynamic factor in diffusion in the L1_2-type non-stoichiometricintermetallic compounds Ni_3Ga and Pt_3In was derived from the experimentally measured activities ofGa and In, respectively. The results show that the thermodynamic factor in diffusion in the Ni_3Gaand Pt_3In compounds exhibits the maximum near the stoichiometric composition with the variation ofcomposition over the compound region. The values indicate strong interaction between Ni and Gaatoms, as well as Pt and In atoms, respectively, as expected in ordered alloys.
基金the National Natural Science Foundation of China (No. 50071009), the Foundation of Natural Science of Anhui Province 00046509, t
文摘At present CALPHAD (CALculation of PHAse Diagram) technique is notcapable of predicting whether there exists intermediate compound,much less predicting the formulae, the number, and the meltingcongruence of intermedi- ate compounds. To solve this problem, a newapproach called the phase diagram evaluation by pattern recognition(PDEPR) was improved. The micro-parameters. Such as the radius andthe electronegativity of the different features in multi-dimensionalspace.
文摘A kind of carbon-bering refractory (MA-C1) has been developed for smelting-reduction iron-making process and its physical chemistry properties were measured,Smilting-reduction slag (15 wt% FeO) resistance of the developed refractory has been compared with commercially available refractories by curcible test,static slag soaking test and fractal dimension analyses,The results show that slag resistance of the developed refractories(MA-C1) is better than those of alumina-carbon refractory (AM-C1),alumina-magnasia-carbon brick (AM0(J)) ,and Si3N4-SiC brick.
