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https://doi.org/10.1080/10426910600650415

has been cited by the following article:

• TITLE: The Effect of Nano-Alumina Particles Generated in Situ in the Matrix of Ultralow and No Cement 85 wt% Al2O3 Refractory Castables

  AUTHORS: José Antonio Alves Júnior, João Baptista Baldo

  KEYWORDS: Low Cement Refractory Castable, Alumina Nanoparticles, Elastic Modulus, Impulse Excitation Technique

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.7 No.6, June 27, 2019

  ABSTRACT: Advanced high alumina refractory castables of ultra-low and to cement types, are well-known because of their ability on developing similar and/or superior thermal and mechanical properties. Following the recent trend of including nanoparticles in refractory castables, in this work, it is presented a novel way to obtain the benefit effects on the thermal and mechanical properties, promoted by the development in situ, of alumina’s nanoparticles in the matrix of castable (85 wt% Al2O3). The alumina nanoparticles were originated in situ after firing, due to the pyrolysis and oxidation of an aqueous resin, produced by the Pechini process. The resin played a double role, one as mixing liquid vehicle and the other as the aluminum oxide nanoparticles precursor. The results indicate a strong increase in flexural strength and elastic modulus as well as leading to a higher residual strength after thermal shock.