Al-Zn-Cu三元系T’相α相熔制了14个不同成分的Al-Zn-Cu合金,并进行了组织均匀化和平衡冷却至室温的处理.通过显微组织观察,X射线衍射分析和电子探针微区成分分析,测定了这14个合金的相组成及成分,还通过晶格常数变化和溶质浓度关系的分析,对α与CuZn4相的成分进行了计算,并绘制出了Al-Zn-Cu系低Cu侧的室温...
Piskach, Phase diagram of the Cu2GeSe3-ZnSe system and crystal structure of the Cu2ZnGeSe4 compound, J. Alloys Compd. 329 (2001) 202-207.Phase diagram of the Cu2GeSe3–ZnSe system and crystal structure of the Cu2ZnGeSe4 compound. O. V. Parasyuk L. D. Gulay Ya. E. Romanyuk ...
Figure10.3(a)Thecopper–nickelphasediagram.(b)Aportionofthecopper–nickelphasediagramforwhichcompositionsandphaseamountsaredeterminedatpointB.Figure10.3a Figure10.3b 10.8、INTERPRETATIONOFPHASEDIAGRAMS DeterminationofPhaseAmounts theleverrule ConsideragaintheexampleshowninFigure10.3b,inwhichat1250oCboth...
Isomorphous phase diagram The cooling curve for an isomorphous alloy during solidification. We assume that cooling rates are small so as to allow thermal equilibrium to take place. The changes in slope of the cooling curve indicate the liquidus and solidus temperatures, in this case for a Cu-40...
= 415 t 5 K [4,6].We have initiated a program to determine the magnetic phase diagram of YBa,Cu,O,+, , especially in the neighbourhood of x -... J Rossat-Mignod,H Noel,M Potel,... 被引量: 24发表: 0年 ANTIFERROMAGNETIC ORDERING AND PHASE DIAGRAM OF YBa2Cn306,, Neutron scatte...
Chapter 9: Phase Diagrams for Metallic Systems Why study phase diagrams ? Heat treatment -> control of properties/structure for design Phase Diag §9.1 Introduction ?This chapter covers: - concepts of phase diagram and phase transformation - interpretation and read of phase diagram - some simple ...
Phase equilibria and structural chemistry in the ternary systems M–Si–N and M–B–N (M = Al, Cu, Zn, Ag, Cd, In, Sn, Sb, Au, Tl, Pb, Bi) Smid, I., Rogl, P., “Phase Equilibria and Structural Chemistry in Ternary Systems: Transition Metal - Boron - Nitrogen”, Inst. Phy...
? F Equilibrium phase diagrams 平衡相图 Features of binary eutectic phase diagram For the Cu-Ag system: Have three-phases equilibrium line ?+?+L (eutectic isotherm) Have three single-phase regions: ?, ?, L (liquid) Have three two-phases regions: ?+L, ?+L, ?+?, ? Phase: solid ...
In the present reevaluation of the Cu-Zn system, the ordering in the β phase is described using a two sublattice model, whereas four sublattices are used to model theγ phase. A self-consistent set of coefficients has been obtained, allowing both the equilibrium phase diagram and the therm...
Ising model phase-diagram calculations in the fcc lattice with first- and second-neighbor interactions Phase diagrams for a model fcc binary alloy with first- and second-neighbor interactions are calculated in the tetrahedron-octahedron approximation of the cluster-variation method. The calculations are...