Development of a microwave thermogravimetric analyser based on a multimode oven

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Abstract

This article describes the development of a thermogravimeter (thermobalance) based on a multimode microwave cavity utilizing pulse-width modulation control of the power and five figure (0.01 mg resolution) balance. The operation and capabilities of the instrument for the study of thermally induced processes involving mass changes are demonstrated with examples of decomposition, dehydration, and oxidation reactions. The potential for combining microwave thermogravimetry with "sample controlled" techniques is also discussed.

LanguageEnglish
Article number065108
JournalReview of Scientific Instruments
Volume76
Issue number6
DOIs
Publication statusPublished - 23 May 2005

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ovens
Ovens
Microwaves
thermobalances
microwaves
pulse duration modulation
thermogravimetry
Dehydration
dehydration
Pulse width modulation
Thermogravimetric analysis
Decomposition
decomposition
Oxidation
oxidation
cavities

Cite this

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abstract = "This article describes the development of a thermogravimeter (thermobalance) based on a multimode microwave cavity utilizing pulse-width modulation control of the power and five figure (0.01 mg resolution) balance. The operation and capabilities of the instrument for the study of thermally induced processes involving mass changes are demonstrated with examples of decomposition, dehydration, and oxidation reactions. The potential for combining microwave thermogravimetry with {"}sample controlled{"} techniques is also discussed.",
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AB - This article describes the development of a thermogravimeter (thermobalance) based on a multimode microwave cavity utilizing pulse-width modulation control of the power and five figure (0.01 mg resolution) balance. The operation and capabilities of the instrument for the study of thermally induced processes involving mass changes are demonstrated with examples of decomposition, dehydration, and oxidation reactions. The potential for combining microwave thermogravimetry with "sample controlled" techniques is also discussed.

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