The phase equilibrium relationships in the systems Sm2O3-BeO, Ho2O3-BeO and Y2O2-BeO have been studied by the quenching method together with microscopic and X-ray powder techniques as those described in detail in prev...The phase equilibrium relationships in the systems Sm2O3-BeO, Ho2O3-BeO and Y2O2-BeO have been studied by the quenching method together with microscopic and X-ray powder techniques as those described in detail in previous publications. The phase diagrams thereby constructed are presented in Fig. 1.展开更多
In our previous studies, two intermediate compounds, La2O2·2BeO and 3La2O3·2BeO, were identified in the system La2O3-BeO and one compound, Sm2O2. 2BeO in the system Sm2O<sup>3-BeO, and from gadolinum o...In our previous studies, two intermediate compounds, La2O2·2BeO and 3La2O3·2BeO, were identified in the system La2O3-BeO and one compound, Sm2O2. 2BeO in the system Sm2O<sup>3-BeO, and from gadolinum oxide and onwards, only metastable compounds were found to exist in their systems with beryllium oxide. Since neodymium has a position between lanthanum and samarium in the periodic table, a study of展开更多
In the La2O3-BeO binary system, two compounds, La2O3. 2BeO and 3La2O3.2BeO, have been identified, while others between rare earth sesquioxides and the beryllium oxide have not been hitherto reported. et al. by the hig...In the La2O3-BeO binary system, two compounds, La2O3. 2BeO and 3La2O3.2BeO, have been identified, while others between rare earth sesquioxides and the beryllium oxide have not been hitherto reported. et al. by the high temperature thermal analysis method, ascertained the phase diagram of Gd2O3-BeO to be a simple eutectic binary system. No intermediate compound of any form has been found. However, according to their phase diagram,展开更多
文摘The phase equilibrium relationships in the systems Sm2O3-BeO, Ho2O3-BeO and Y2O2-BeO have been studied by the quenching method together with microscopic and X-ray powder techniques as those described in detail in previous publications. The phase diagrams thereby constructed are presented in Fig. 1.
文摘In our previous studies, two intermediate compounds, La2O2·2BeO and 3La2O3·2BeO, were identified in the system La2O3-BeO and one compound, Sm2O2. 2BeO in the system Sm2O<sup>3-BeO, and from gadolinum oxide and onwards, only metastable compounds were found to exist in their systems with beryllium oxide. Since neodymium has a position between lanthanum and samarium in the periodic table, a study of
文摘In the La2O3-BeO binary system, two compounds, La2O3. 2BeO and 3La2O3.2BeO, have been identified, while others between rare earth sesquioxides and the beryllium oxide have not been hitherto reported. et al. by the high temperature thermal analysis method, ascertained the phase diagram of Gd2O3-BeO to be a simple eutectic binary system. No intermediate compound of any form has been found. However, according to their phase diagram,
