Materials Research v.18 n.6 2015 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL Materials Research, Volume: 18, Issue: 6, Pages: 1291-1297, Published: 04 DEC 2015 Materials Research, Vol 18, Iss 6, Pp 1291-1297 (2015)