Тип публикации: статья из журнала
Год издания: 2016
Идентификатор DOI: 10.1134/S0020168516080045
Ключевые слова: oxidation kinetics, high-temperature gravimetry, Differential scanning calorimetry, Germanium, Glass, Lead, Molten materials, Specific heat, Thermooxidation, Characteristic peaks, Crucible materials, Glass crystallization, Glassy state, High temperature, Sessile drop method, Temperature range, Oxidation
Аннотация: This paper presents experimental data on the oxidation kinetics of a liquid 65 at % Pb + 35 at % Ge alloy in air. Lead metagermanate, PbGeO3, in a glassy state has been prepared by high-temperature oxidation of the melt at 1273 K. Interaction of molten PbGeO3 with crucible materials (SnO2, Au, Pd, and Pt) has been studied by the seПоказать полностьюssile drop method. Liquid lead germanate has been shown to be highly reactive with substrates from these materials. The heat capacity of the glassy lead metagermanate obtained has been determined by differential scanning calorimetry in the temperature range 300-800 K. In the range 330-630 K, the C (p) (T) data for glassy PbGeO3 can be represented using the Maier-Kelley equation. Above 630 K, there is a characteristic peak due to glass crystallization processes.
Журнал: INORGANIC MATERIALS
Выпуск журнала: Vol. 52, Is. 8
Номера страниц: 824-827
ISSN журнала: 00201685
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER