Synthesis and Characterization of Alumina Nano-powder Obtained by Sol-gel Method

نویسندگان

  • Rodica ROGOJAN
  • Ecaterina ANDRONESCU
  • Cristina GHIŢULICĂ
  • Bogdan Ştefan VASILE
  • Rodica Rogojan
  • Ecaterina Andronescu
  • Cristina Ghiţulică
  • Bogdan Ştefan Vasile
چکیده

Este cunoscut că metoda sol gel este una din metodele neconvenţionale de obţinere a pulberilor ceramice. În studiul realizat s-a avut în vedere obţinerea şi caracterizarea de nanopulberi de Al2O3 prin metoda sol-gel, aceasta putand fi un potential material utilizat la realizarea de implanturi biocompatibile.[1,2,3,4] In vederea sintezei s-a pornit de la precursori de natură chimică diferită – anorganici (clorură de aluminiu, AlCl3) şi organici (triizopropilat de aluminiu, (C3H7O)3)Al. Pulberile obţinute în urma uscării gelului au fost tratate termic la 1000C şi 1200C, palier 2 ore. În vederea caracterizării din punct de vedere al gradului de cristalinitate şi al dimensiunii de cristalit s-a utilizat difracţia de raze X (XRD). Caracterizarea microstructurală şi morfologică s-a realizat cu ajutorul tehnicilor electrono-microscopice – microscopie electronică de baleiaj (SEM) şi de transmisie (TEM).

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تاریخ انتشار 2011