Preparation and Characterization of Multilayered Mullite/Mo Functionally Gradient Materials

Shu Heng Chen; Lin Jiang Wang; Xiang Li Xie; Ye Zhang

doi:10.4028/www.scientific.net/KEM.368-372.1866

Paper Titles

Preparation of Ternary Layered Ti₃SiC₂ Ceramic by SHS/PHIP
p.1851

Fabrication and Mechanical Properties of B₄C/BN Laminated Ceramics
p.1855

Joining CoSb₃ to Metal Surface of FGM Electrode for Thermoelectric Modules by SPS
p.1858

Splat Formation of Plasma Sprayed Functionally Graded YSZ/NiCrCoAlY Thermal Barrier Coatings
p.1862

Preparation and Characterization of Multilayered Mullite/Mo Functionally Gradient Materials
p.1866

Preparation of Mg-W Graded Materials by Spark Plasma Sintering
p.1869

Cladding of WC-Cr₃C₂ Cermet Coating by Laser Controlled Reactive Synthesis
p.1872

Microstructure and Mechanical Properties of Graded Materials Prepared by Field-Activated and Pressure-Assisted Combustion Synthesis
p.1876

Material Design of Alkaline Niobate Piezoelectric Ceramics
p.1879

HomeKey Engineering MaterialsKey Engineering Materials Vols. 368-372Preparation and Characterization of Multilayered...

Preparation and Characterization of Multilayered Mullite/Mo Functionally Gradient Materials

Abstract:

Multilayered mullite/Mo cermet functionally gradient material (FGM) was fabricated through a powder stacking process and sintering in vacuum up to 1500°C. The composition distribution, microstructure and microhardness of the FGM were analyzed. The results indicated that the mullite/Mo FGM was well densified with composite graded distribution and there was no new phase appeared. The microhardness of the FGM increase from 467HV to 1543HV, the density from 2.919 to 7.106 g/cm3 as the content of mullite increase from 20% to 80%. The relative density exceeded 90% as the content of mullite reached 80%. Thermal shock test showed that the cracks passed through the joint without deflection.