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Characterization of high-technology materials by emanation thermal analysis

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Abstract

The principles of the emanation thermal analysis, based on the measurement of inert gas release from solids, are given. Results of the computer modelling of inert gas release curves during heating of porous and dispersed samples are demonstrated.

Examples of the characterization of high-tech ceramic materials and raw materials for their preparation by means of emanation thermal analysis are given, such as the evaluation of reactivity and sinterability of ceramics powders, quality testing of intermediate and final products of advanced technology materials (such as thoria, urania, ferrites, superconducting oxide ceramics, etc.).

Zusammenfassung

Es werden Grundlagen für die Emanationsthermoanalyse /ETA/ auf der Basis der Messung der Inertgasfreisetzung bei Feststoffen gegeben. Ergebnisse von computermodellierten Inertgasfreisetzungskurven bei Erhitzen von porösen und dispersen Proben werden angeführt.

Weiterhin werden Beispiele für die mittels ETA durchgeführte Charakterisierung von Spitzentechnologiekeramikmaterialien und den Rohstoffen zu deren Herstellung gegeben: Auswertung von Reaktivität und Sinterbarkeit von Keramikpulver, Qualitätskontrolle der Zwischen- und Endprodukte aus modernen Rohstoffen /wie z. B. Thorerde, Uranerde, Ferrit, supraleitende Oxidkeramiken usw./.

Резюме

Представлены принци пы эманационного термического анализ а, основанного на измер ении инертного газа, выделяющегося из твердых тел. Предст авлены результаты компьютерного модел ирования кривых выделения ине ртного газа при нагревании пористых и дисперсных образцо в. С помощью эманацион ного термического анализа проведена ха рактеристика высоко-технологичны х керамических материалов и исходно го для них сырья, заключающаяся в определении реакци онной способности и с пекаемости керамических порошков, качественн ой проверке промежут очных и конечных продуктов получаемы х высоко-технологичн ых материалов/ферритов, окиси тория, окиси ура на, сверхпроводящей оксидной керамики и др. /.

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Authors and Affiliations

  1. Nuclear Research Institute, 250 68, Rez, Czechoslovakia

    V. Balek

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  1. V. Balek
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Balek, V. Characterization of high-technology materials by emanation thermal analysis. Journal of Thermal Analysis 35, 405–427 (1989). https://doi.org/10.1007/BF01904445

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  • DOI: https://doi.org/10.1007/BF01904445

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