%0 Journal Article %T T-x-y-z phase diagrams assembling: Na<sub>2</sub>MoO<sub>4</sub>-Na<sub>2</sub>CrO<sub>4</sub>-Na<sub>2</sub>WO<sub>4</sub>-Na<sub>2</sub>SO<sub>4</sub>, Fe-Ni-Co-Cu, Pb-Cd-Bi-Sn, Fe-Ni-Co-FeS-NiS-CoS   %J Advanced Materials Letters %I International Association of Advanced Materials %Z 0976-3961 %A I Lutsyk, Vasily %A P Vorob&rsquo;eva, Vera %A E Zelenaya, Anna %D 2019 %\ 01/01/2019 %V 10 %N 1 %P 53-57 %! T-x-y-z phase diagrams assembling: Na<sub>2</sub>MoO<sub>4</sub>-Na<sub>2</sub>CrO<sub>4</sub>-Na<sub>2</sub>WO<sub>4</sub>-Na<sub>2</sub>SO<sub>4</sub>, Fe-Ni-Co-Cu, Pb-Cd-Bi-Sn, Fe-Ni-Co-FeS-NiS-CoS   %K Phase diagrams %K three %K dimension visualization %K computer simulation %K Iron %K nickel %K Cobalt %K Copper %K sulfides %R 10.5185/amlett.2019.2172 %X The&nbsp;T-x-y-z diagrams of quaternary Na2MoO4-Na2CrO4-Na2WO4-Na2SO4, Fe-Ni-Co-Cu, Pb-Cd-Bi-Sn systems and their four-dimension (4D) computer models are considered. Geometric constructions of these diagrams are described by special di-, uni- and invariant states schemes. Assumed liquidus of the&nbsp;Fe-Ni-CoFeS-NiS-CoS subsystem T-x-y-z diagram on the basis of the data about the structure of the border systems is predicted and the 4D computer model is designed. The possibilities of calculating of three- (3D) and two-dimensional (2D) iso- and polythermal sections are shown.&nbsp; %U https://aml.iaamonline.org/article_13761_98f8b6d1de385854f871358b048de0e9.pdf