Phase relations in Hg-Ba-Ca-Cu-O system

Following our recent study on Hg-Ba-Cu-O subsystem [1], in this paper we have enlarged our focus to a quinary Hg-Ba-Ca-Cu-O system containing all members of the HgBa 2 Ca n-1 Cu n O 2n+2 family of superconducting cuprates, whose stability regions in selected sections of the P Hg -P O2 -T phase diagram are examined for fixed ratios of stable components (Ba:Ca:Cu = 2:1:2 and 2:2:3).