TY - JOUR
T1 - A new method to texture dense Mn+1AXn ceramics by spark plasma deformation
AU - Lapauw, Thomas
AU - Vanmeensel, Kim
AU - Lambrinou, Konstantza
AU - Vleugels, Jozef
N1 - Score=10
PY - 2016
Y1 - 2016
N2 - This work explored a new method to texture Mn+1AXn phases by deforming discs of dense ceramics Maxthal 211® (nominally Ti2AlC) and Maxthal 312® (nominally Ti3SiC2) in a spark plasma facility. The disc diameter increased by 40% without crack formation. After deformation, the MAX grains exhibited clear preferential crystallographic orientation, whereby the c-axis was aligned to the compression direction. The fracture toughness increased both parallel and perpendicular to the textured top surface compared with the as-sintered materials. The onset of plastic deformation was observed near the brittle-to-plastic transformation temperature, a fact that could be associated with the change in elastic response.
AB - This work explored a new method to texture Mn+1AXn phases by deforming discs of dense ceramics Maxthal 211® (nominally Ti2AlC) and Maxthal 312® (nominally Ti3SiC2) in a spark plasma facility. The disc diameter increased by 40% without crack formation. After deformation, the MAX grains exhibited clear preferential crystallographic orientation, whereby the c-axis was aligned to the compression direction. The fracture toughness increased both parallel and perpendicular to the textured top surface compared with the as-sintered materials. The onset of plastic deformation was observed near the brittle-to-plastic transformation temperature, a fact that could be associated with the change in elastic response.
KW - MAX phase
KW - Deformation behaviour
KW - Spark plasma sintering
KW - Textured ceramics
UR - http://ecm.sckcen.be/OTCS/llisapi.dll?func=ll&objId=9972099&objaction=overview&tab=1
U2 - 10.1016/j.scriptamat.2015.08.023
DO - 10.1016/j.scriptamat.2015.08.023
M3 - Article
SN - 1359-6462
VL - 111
SP - 98
EP - 101
JO - Scripta Materialia
JF - Scripta Materialia
IS - 1
ER -