Crystal structure of Al2.95Cr0.59, a phase closely related to the η-phase in the binary Al–Cr system

ABSTRACT: Al2.95Cr0.59 was synthesized by high-pressure sinter­ing (HPS). It has a slightly lower Al content than the closely related η-Al11Cr2 phase. The monoclinic η-phase in the binary Al–Cr system was initially named by Bradley & Lu [Bradley & Lu (1937 ▸). J. Inst. Met. 60, 319–337] as having the composition Al11Cr2 (Al:Cr ratio = 5.5:1). Its crystal structure was later refined [Cao & Kuo (2008). J. Alloys Compd.458, 30, 319–337] to have a slightly lower Al content (Al:Cr ratio = 5.16:1). In the present work, a monoclinic phase with composition Al2.95Cr0.59 (Al:Cr ratio = 5.04:1) was obtained by high-pressure sinter­ing (HPS) of a stoichiometric Al11Cr2 mixture. Structure analysis of this phase, hereafter named η′, revealed a close relationship to the previously reported η-Al11Cr2 structure, but

SUBMITTER: Geng X 

PROVIDER: S-EPMC9462158 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature