Фазовая диаграмма системы La-Mn

К оглавлению: Другие диаграммы (Others phase diargams)


La-Mn (Lanthanum-Manganese) A. Palenzona and S. Cirafici The assessed La-Mn phase diagram is based primarily on the work of [42Rol]. Melting and transformation temperatures for the pure elements have been changed to the accepted values. Thermal analysis, micrographic investigation and X-ray diffraction were used to establish the equilibrium diagram. This system is characterized by the presence of a monotectic at 1081 C and a eutectic at 701 C; no intermediate phases have been found. Terminal solid solubilities and the effect of Mn on La allotropes or of La on Mn allotropes have not been investigated. An indication of some solubility of La in Mn has been observed by [42Rol]. 42Rol: L. Rolla and A. Iandelli, Ber. Dtsch. Chem. Ges., 75, 2091-2095 (1942) in German. Submitted to the APD Program. Complete evaluation contains 1 figure, 1 table, and 7 references. 1