Study of Equilibrium Phase Diagram Around Langatate

Study of Equilibrium Phase Diagram Around Langatate [15] 

Using a similar procedure, the equilibrium phase around langatate (LTG LasTao.s Gas 5O14) and its incongruency has been established. 

La203-Ga203-Ta205 in the temperature range from 1300°C to 1350°C. Compositions of sintered samples are denoted by O Solid tie lines Kimura et al. [15] dashed lines Khodzhabagyan et al. [13]. DSC measurement line denoted by line A-B. (Reproduced by the permission of Elsevier Ltd.) 

Differential scanning calorimetry (DSC) measurements were also performed using Pt pans on sintered samples with compositions ranging from 61 to 

On the basis of the phase transition data obtained by DSC analysis, the pseudobinary phase diagram is drawn (see Fig. 15.11(c)) along the composition A-B in Fig. 15.9 with constant Ta20s content. On the basis of all these data, the phase relationship between LTG and associated phases has been established the result is illustrated in Fig. 15.12 as a phase diagram around LTG in the system La203-Ga203-Ta205. 

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