Effect of milling time on mechanical properties of anorthite obtained by thermal transformation of Ca-LTA zeolite

Anorthite ceramics was fabricated from calcium exchanged Na-LTA zeolite. The powder compacts of Ca-LTA zeolite were sintered at different temperatures ranging between 1100 and 1400?C. It found that the temperature 1100?C sufficiently high to trigger formation anorthite which stayed stable even as highest relative density lowest open porosity measured in samples 1200?C for 3 h. effect milling time precursor on density, microstructure mechanical properties h investigated. particle size refinement appeared be beneficial accelerating densification process improving properties. compressive strength hardness obtained non-milled 70.5 %TD, 64 MPa 1.45 GPa, respectively. On other side 24-hour-long milled had 83.9 101 3.44 GPa.