WILSON ACCHAR
7 resultados
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Artigo IPEN-doc 23921 Yttria nettings by replica processing2014 - SANTOS, S.C.; YAMAGATA, C.; ACCHAR, W.; MELLO-CASTANHO, S.R.H.In the context of green economy supported and widespread by United Nations (UN), the renewable energy sources are the unique mechanism to universalize the access to energy. Face to this strategic direction of change is essential to develop efficient components for saving energy such as porous ceramics that associate light with mechanical strength. Thus, the objective of this work concerns to improve the homogeneity of porous size distribution of yttria porous ceramics by evaluating their morphology during replica processing. Samples were subject to immersion into 30vol% yttria aqueous suspensions during an interval from 1min to 120min and sintered through careful thermal conditions. Based on the results, the weight and morphology of porous structure samples were directly influenced by immersion time, whereby intervals from 30-120min showed the best final products.Resumo IPEN-doc 19830 Yttria nettings by replica processing2013 - SANTOS, S.C.; ACCHAR, W.; YAMAGATA, C.; MELLO CASTANHO, S.R.H.Artigo IPEN-doc 19175 Yttrium disilicate stability in aqueous medium2013 - SANTOS, S.C.; ACCHAR, W.; SILVA, A.C.; YAMAGATA, C.; MELLO CASTANHO, S.R.H.Artigo IPEN-doc 14823 Properties of clay-based ceramics added with construction and demolilion waste2009 - ACCHAR, WILSON; SILVA, JULIANA E.; MELLO CASTANHO, SONIA R.H.; SEGADAES, ANA M.Artigo IPEN-doc 20089 Yttria nettings by colloidal processing2014 - SANTOS, S.C.; ACCHAR, W.; YAMAGATA, C.; MELLO CASTANHO, S.Artigo IPEN-doc 18361 Mechanical performance of LaCrOsub(3) doped with strontium and cobalt for SOFC interconnect2012 - ACCHAR, W.; SOUSA, C.R.C.; MELLO CASTANHO, S.R.H.Artigo IPEN-doc 17676 Assessment of reuse potential of high alumina industrial waste as devitrification aid in common alumina-lime-silica glasses2011 - MELLO CASTANHO, S.R.H.; FERREIRA, M.C.; ACCHAR, W.; SEGADÃES, A.M.