Synthesis and characterization of TiB۲ nanopowder
سال انتشار: 1402
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 56
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شناسه ملی سند علمی:
KNANO01_028
تاریخ نمایه سازی: 8 مرداد 1403
چکیده مقاله:
In this research, TiB₂ powder was synthesized using the sol-gel process, resulting in nanometer-scale dimensions. Raw materials employed included titanium isopropoxide and trimethyl borate. Various analytical techniques, including DLS, Zetameter, XRD, FTIR, SEM, and DTA/TG, were employed to elucidate the mechanism of product formation in the sol-gel process. FTIR data indicated the presence of B-Ti and carbon-containing bonds within the ۶۰۰-۱۶۵۰ cm-۱ range in the prepared gel powder. DTA analysis revealed that the initial nucleation of TiB₂ particles occurred within the temperature range of ۱۳۰۰ºC. XRD patterns confirmed the formation of the TiB₂ crystalline phase, which further progressed with increasing temperature, reaching up to ۱۴۰۰ºC. Surface analysis of the synthesized particles indicated a specific surface area of approximately ۱۵۳.۴۲ m²/g, with porous and meso-sized surfaces. PSA results showed that the particle size distribution is in the range below ۵۰ nm. SEM and TEM microstructural images provided visual evidence of the synthesis of TiB₂ particles smaller than ۱۰۰ nm, characterized by a narrow and uniform distribution range.
کلیدواژه ها:
نویسندگان
Gholamreza Khalaj
Department of Materials Science and Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran
Abolhassan Najafi
Department of Materials Science and Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran