کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5437885 | 1398178 | 2017 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impact of microwave processing on porcelain microstructure
ترجمه فارسی عنوان
تاثیر پردازش مایکروویو بر ریز ساختار چینی
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کلمات کلیدی
ظروف چینی، آلومینوسیلیکات، مولیت، پخت مایکروویو، فیلد به تکنیک پختن کمک کرد،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Microstructural evolution on sintering of porcelain powder compacts using microwave radiation was compared with that in conventionally sintered samples. Using microwaves sintering temperature was reduced by ~ 75 °C and dwell time from 15 min to 5 min while retaining comparable physical properties i.e. apparent bulk density, water absorption to conventionally sintered porcelain. Porcelain powder absorbed microwave energy above 600 °C due to a rapid increase in its loss tangent. Mullite and glass were used as indicators of the microwave effect: mullite produced using microwaves had a nanofibre morphology with high aspect ratio (~ 32 ± 3:1) believed associated with a vapour-liquid-solid (VLS) formation mechanism not previously reported. Microwaves also produced mullite with different chemistry having ~ 63 mol% alumina content compared to ~ 60 mol% alumina in conventional sintered porcelain. This was likely due to accelerated Al+3 diffusion in mullite under microwave radiation. Liquid glass was observed to form at relatively low temperature (~ 900-1000 °C) using microwaves when compared to conventional sintering which promoted the porcelains ability to absorb them.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 16, November 2017, Pages 13765-13771
Journal: Ceramics International - Volume 43, Issue 16, November 2017, Pages 13765-13771
نویسندگان
Wirat Lerdprom, Eugenio Zapata-Solvas, Doni D. Jayaseelan, Amparo Borrell, Maria D. Salvador, William E. Lee,