کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
675019 | 1459586 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics of interaction of tungsten metal with a fluoropolymer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The kinetics of the interaction of tungsten metal with a copolymer of tetrafluoroethylene and vinylidene difluoride (TFE–VDF) has been studied by mass spectrometry (MS), thermogravimetry (TG), and differential scanning calorimetry (DSC). Measurements were taken in a vacuum (MS) and in a dynamic argon atmosphere (DSC, TG) in temperature ranges of 550–585 K (MS) and 313–873 K (TG, DSC). The interaction of tungsten with the fluoropolymer is at least a two-stage process. Its kinetics is described by the Prout–Tompkins nth-order autocatalytic equation. It follows from the kinetic dependences and parameters obtained that the rate-limiting stage of the overall process is the formation of the highest tungsten fluoride WF6.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 496, Issues 1–2, 10 December 2009, Pages 161–165
Journal: Thermochimica Acta - Volume 496, Issues 1–2, 10 December 2009, Pages 161–165
نویسندگان
A.V. Tarasov, I.V. Arkhangel'skii, A.S. Alikhanyan,