Er-Cr-Ge Ternary System

Prevention of Ge volatilization in the chemical treatment of Ge-Cr-Al-Ce-Sm amorphous alloy for the determination of Ge by ICP-AES.

Thermodynamics of the Ternary System

The enthalpies of mixing of the liquid mixtures of (NaB0 2 ) 2 + B 2 0 3 , N a 4 P 2 0 7 + (NaP0 3 ) 2 , (NaP0 3 ) 2 + B 2 0 3 and N a 4 P 2 0 7 + (NaB0 2 ) 2 have been measured by liquid -(liquid calorimetry. The results are discussed in terms of tentative structural models of the melts, and in terms of O 2 ion transfers from phosphorus groups to boron groups in (NaP0 3 ) 2 + B 2 0 3 and from ...

Glass structure , rigidity transitions and the intermediate phase in the Ge - As - Se ternary

– The non-reversing heat flow, ∆Hnr(x) near Tg in ternary GexAsxSe1−2x glasses is examined by temperature-modulated differential scanning calorimetry. The ∆Hnr(x) term shows a deep minimum (which is almost zero) in the 0.09 < x < 0.14 range, identified with the intermediate phase, and an increase, both at low x (< 0.09) in the floppy phase and at high x (> 0.14) in the stressed rigid phase. Exp...

Nuclear quadrupole resonance study of local structure of the Ge–As–Se ternary chalcogenide glasses

The local bonding structure in the Ge–As–Se ternary glassy system has been investigated by As nuclear quadrupole resonance (NQR) at 77 K. For the compositions with average coordination number r 1⁄4 2:2; 2:4; 2:54 the NQR measurements yield no evidence for the presence of As–As homopolar bonds. For the composition Ge2As2Se5 ( r 1⁄4 2:67) the NQR lineshape exhibits two peaks corresponding to arse...

Thermodynamic Study of Al-Ge-Sn Ternary Alloys by E.M.F. Measurements

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