Phase relations in metastable equilibria of the PbO-GeO2 system

被引：5

作者：

Zhereb, V. P. ^{[1
]}

Kirko, V. I. ^{[2
]}

Tarasova, L. S. ^{[3
]}

Markosyan, S. M. ^{[4
]}

Zhizhaev, A. M. ^{[4
]}

El'berg, M. S. ^{[5
]}

Suprunets, S. V. ^{[2
]}

机构：

[1] Siberian State Aerosp Univ, Krasnoyarsk, Russia

[2] Krasnoyarsk State Univ, Inst Physicotech, Krasnoyarsk, Russia

[3] Russian Acad Sci, Krasnoyarsk Res Ctr, Siberian Branch, Krasnoyarsk, Russia

[4] Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk, Russia

[5] Krasnoyarsk Stat Engn Univ, Krasnoyarsk, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2008年 / 53卷 / 02期

关键词：

Differential thermal analysis - Germanium compounds - Lead compounds - Solid solutions - Solidification - Thermodynamic stability - X ray powder diffraction;

D O I：

10.1134/S0036023608020253

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Metastable phase relations in the PbO-GeO2 system have been studied by DTA and X-ray powder diffraction. Metastable equilibrium was acquired during the solidification of a melt while it was slowly (at 8 K/min) cooled from temperatures slightly exceeding the critical value for a given composition. In the metastable equilibrium acquired in this way, alpha-PbO-base solid solution and four metastable individual phases were observed in the system at room temperature, with different structures and different thermal stabilities. A metastable equilibrium phase diagram has been mapped.

引用

页码：313 / 318

页数：6

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