کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898071 | 1510130 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of heat treatment conditions on magnesium borate fibers prepared via electrospinning
ترجمه فارسی عنوان
اثر شرایط حرارتی بر روی الیاف بورات منیزیم، تهیه شده از طریق الکتروفیزین
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
The influence of different heating rates as well as different atmospheres on magnesium borate fibers produced by electrospinning was investigated in this work. The green fibers were prepared from sol-gel precursors, using polyvinyl-pyrrolidone (PVP) as processing aid. Crystalline fibers with the typical necklace structure and average diameter in the range 300-500â¯nm were produced when heating up to 900â¯Â°C in air. The main phase detected by XRD analysis was in this case Mg2B2O5. On the other hand, the fibers slowly heated in reducing atmosphere to 800â¯Â°C exhibited similar dimension but a different morphology. The crystalline grains were presumably smaller, hence the necklace effect was absent. This sample also revealed a much higher specific surface area in comparison to the samples calcined in air. Mg3B2O6 was here the main crystalline phase, while a part of boron was lost during the thermal treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 11, September 2018, Pages 4109-4117
Journal: Journal of the European Ceramic Society - Volume 38, Issue 11, September 2018, Pages 4109-4117
نویسندگان
Enrico Storti, Ondrej Jankovský, Paolo Colombo, Christos G. Aneziris,