УДК 546.668.289.24 З.М. Мухтарова Зияфат Мамед кызы Мухтарова Институт катализа и неорганической химии им. акад. <...> Г. Джавида, 113, AZ1143 E-mail: iradam@rambler.ru ФАЗОВЫЕ РАВНОВЕСИЯ В СИСТЕМЕ YbTe – Yb3Ge5 Методами физико-химического анализа ДТА, РФА, МСА, а также измерением микротвердости изучена система YbTe – Yb3Ge5, которая является квазибинарным сечением тройной системы Ge –Te – Yb. <...> Установлено, что диаграмма состояния системы является квазибинарной и относится к эвтектическому типу с монотектикой. <...> Mukhtarova Institute of Catalysis and Inorganic Chemistry named after acad. <...> The section of YbTe–Yb3Ge5 in ternary system Ge–Te–Yb is not only scientific, but also practical interest. <...> The section of YbTe–Yb3Ge5 was studied by methods of physical-chemical analysis: differential-thermal (DTA), high temperature differential-thermal (HTDT), X-ray phase, microstructural analysis (MSA), as well as measurement of density and micro hardness. <...> DTA was performed with pyrometer HTP-75 in quartz ampoule pimped off till 0.1333 Pa. <...> Density of alloys was determined by pycnometer test. <...> During investigations of the system we used germanium B–4, tellurium B–3, ytterbium Yb–1. <...> Alloys were synthesized at 1450–1700 K temperature range and at this temperature ampoule was kept 5–6 h. <...> DTA shows that on thermograms of alloys of the system have two effects. <...> Obtained effects are endothermic reversible.For confirming the data of DTA, microstructural analysis, as well as measurement of micro hardness were performed with X-ray analysis. <...> As the data show, at the concentration of 15–80 mol% of Yb3Ge5 monotectic conversion occurs which is confirmed with isothermal line at 1025 K. <...> Thus, it was established that the section of 4YbTe–Yb3Ge5 is <...>