Premium
Microstructure and Nanoindentation Properties of Surface Textures Obtained by Laser Machining and Molding in Silicon Carbide
Author(s) -
Valentini Francesco,
Zambotto Italo,
Sciti Diletta,
Silvestroni Laura,
Melandri Cesare,
Guicciardi Stefano
Publication year - 2013
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201200214
Subject(s) - materials science , nanoindentation , machining , microstructure , silicon carbide , molding (decorative) , composite material , texture (cosmology) , laser , selective laser sintering , tungsten carbide , laser beam machining , metallurgy , sintering , laser beams , optics , physics , image (mathematics) , artificial intelligence , computer science
A surface texture consisting of an array of holes in SiC components was obtained by either conventional molding in the green state or post sintering laser machining. According to microstructural analysis, very regular holes were obtained by laser machining with minimal microstructural damage. Irregular holes with defects and voids were instead found for the surface textures obtained via molding. Nanoindentation tests were performed in the areas close to the holes and no significant alteration of the mechanical properties was found after laser machining.