کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625046 | 989613 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of a carbothermal reduction reaction on the microstructure of nano-silicon nitride ceramics
ترجمه فارسی عنوان
اثر یک واکنش کاهش کربردرللی بر ساختار نانو سیلیکون نیترید سرامیک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
In this study, using amorphous nano-Si3N4 as the starting powder, the oxides on the Si3N4 powder surface were removed by carbothermal reduction to prevent the formation of the Oâ²-sialon phase in the sintered product. The results indicate that carbothermal reduction can be effectively induced at 1250 °C and produce single-phase Si3N4. However, as the temperature increased, the liquid phase that formed during Si3N4 sintering began to impede the carbothermal reduction. Analysis revealed that when the temperature exceeded 1350 °C, the reaction gradually shifted from that of carbothermal reduction to that of decomposition, and residual carbon and Oâ²-sialon phase were observed in the sintered product.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 9, Part A, November 2014, Pages 14313-14317
Journal: Ceramics International - Volume 40, Issue 9, Part A, November 2014, Pages 14313-14317
نویسندگان
Horng-Hwa Lu, Yi-Chi Huang, Alex C. Lee, Jow-Lay Huang,