Effect of Current Density, Temperature, and Contact Paste on Flash Sintered 8YSZ

سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 250

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شناسه ملی سند علمی:

JR_ACERPT-5-3_002

تاریخ نمایه سازی: 24 فروردین 1399

چکیده مقاله:

Flash sintering has been investigated as a modern sintering method through examining the effect of processing parameters such as current density, temperature, and contact paste on the flash sintered 8YSZ characteristic. 95% of theoretical density was achieved at 800°С in 30sec with a field intensity of 100V.cm-1 and a current density of 160mA.mm-2. Such relative density in conventional sintering achieved at 1450°С for 4 hours. Results indicated that the temperature and flash current density have positive effects on the relative density. Contact paste had a significant effect on the relative density. 8YSZ samples with LSM contact paste had a higher relative density in comparison with those flash sintered with Pt contact paste. The positive effect of LSM contact paste was more significant, especially at lower current density.

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نویسندگان

H. Mohebbi

Department of Metallurgy and Materials Science, Iran University of Science and Technology, Tehran, Iran & Renewable Energy Department, Niroo Research Institute (NRI), Tehran, Iran

S. M. Mirkazemi

Department of Metallurgy and Materials Science, Iran University of Science and Technology, Tehran, Iran

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