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Differential thermal analysis studies of the reactions of silicon and lead oxides

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Abstract

DTA measurements have been performed on powder mixtures of silicon/lead monoxide and silicon/lead, with the object of determining the mechanisms of reactions as the temperature is gradually raised to 900‡ in (a) air (b) nitrogen.

X-ray diffraction and infrared spectroscopy are used in an attempt to characterize the products of reaction. From the results obtained a tentative mechanism for reactions in air and nitrogen is suggested.

Résumé

Des mesures d'ATD ont été effectuées sur des mélanges pulvérulents de silicone/monoxyde de plomb et silicone/plomb, afin de déterminer les mécanismes réactionnels quand la température est augmentée graduellement jusqu'à 900‡ dans l'air et dans l'azote.

La diffraction des rayons X ainsi que la spectroscopie infrarouge ont été utilisées pour tenter de caractériser les produits de réaction. Un mécanisme possible est proposé à partir des résultats obtenus pour les réactions dans l'air et dans l'azote.

Zusammenfassung

DTA-Messungen wurden an pulverförmigen Mischungen von Silizium/Bleimonoxid und Silizium/Blei zur Bestimmung der Reaktionsmechanismen bei stufenweiser Erhöhung der Temperatur auf 900‡ in a) Luft und b) Stickstoff, durchgeführt.

Röntgendiffraktion und Infrarotspektroskopie wurden zur Charakterisierung der Reaktionsprodukte eingesetzt. An Hand der erhaltenen Ergebnisse wird ein möglicher Reaktions-mechanismus in Luft und in Stickstoff vorgeschlagen.

РЕжУМЕ

БылИ пРОВЕДЕНы ДтА Иж МЕРЕНИь сМЕсЕИ пОРОш кОВ кРЕМНИИ/МОНООкИсь сВ ИНцА И кРЕМНИИ/сВИНцА пРИ пО стОьННОМ пОВышЕНИИ т ЕМпЕРАтУРы ДО 900‡ В ВОжДУшНОИ АтМОс ФЕРЕ И В АтМОсФЕРЕ АжОтА с ц ЕльУ ОпРЕДЕлЕНИь МЕх АНИжМОВ РЕАкцИИ. с цЕльУ ИДЕНт ИФИкАцИИ пРОДУктОВ РЕАкцИИ Ис пОльжОВАлИ РЕНтгЕНО-ДИФРАкцИОН НУУ тЕхНИкУ И ИНФРАкР АсНУУ спЕктРОскОпИУ. спЕктРОскОпИУ. НА ОсНОВЕ пОлУЧЕННых РЕжУльтАтОВ пРЕДлОж ЕН пРЕДВАРИтЕльНыИ МЕх АНИжМ РЕАкцИИ В ВОжДУшНОИ А тМОсФЕРЕ И В АтМОсФЕР Е АжОтА.

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Additional information

The authors thank Nobel's Explosives Co. Ltd. for financial support and supply of materials, and Science Research Council for granting a Co-operative Award in Science and Engineering (CASE) research studentship to one of us (S. S. Al-Kazraji).

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Al-Kazraji, S.S., Rees, G.J. Differential thermal analysis studies of the reactions of silicon and lead oxides. Journal of Thermal Analysis 16, 35–39 (1979). https://doi.org/10.1007/BF01909630

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  • DOI: https://doi.org/10.1007/BF01909630

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