%0 Journal Article
%T Precipitation reaction in alpha-Cu-Al-Ag alloys
%A Silva
%A R.A.G.
%A Adorno
%A A.T.
%A Carvalho
%A T.M.
%A Magdalena
%A A.G.
%A Santos
%A C.M.A.
%J Mat¨Śria (Rio de Janeiro)
%D 2011
%I Rede Latino-Americana de Materiais - Latin-American Materials Network
%R 10.1590/S1517-70762011000300002
%X the ag-rich precipitates formation reaction in the cu-9.22%at. al-4.66%at. ag, cu-9.31%at. al-5.83%at. ag and cu-9.37%at. al-7.08%at. ag alloys was studied using microhardness change measurements with temperature and time, differential scanning calorimetry (dsc), scanning electron microscopy (sem) and x-ray diffractometry (xrd). the results indicated that the ag-rich phase formation is an interface controlled process with a zero-order mechanism, due to the amount of unsolved ag that makes the precipitation reaction rate independent of ag concentration.
%K ag additions
%K cu-based alloys
%K kinetics.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1517-70762011000300002&lng=en&nrm=iso&tlng=en