MoSi2 MATRIX COMPOSITES FOR COMBUSTION COMPONENTS, REPORT 2018:495
The oxidation resistance of MoSi2+15vol%ZrO2 composite after final sintering was comparable to KS1700 material in cyclic exposure at 1200 – 1300˚C and isothermal exposure at 1400˚C; the creeping resistance was close to the state of KS HT material in sag testing at 1600˚C; the flexure strength retained 427 MPa at 1200C. The oxidation property of as-PLS sintered MoSi2+10vol%SiC composite at 1400˚C was comparable to that of KS1700 and FS MoSi2-ZrO2 composite; the creeping resistance at 1600˚C was comparable to that of Kanthal HT material and superior to MoSi2+ZrO2 composite.
Single Edge V- Notch Beam toughness measurement technique was developed for cylindrical shaped-beam. The technique can be directly applied to as-manufactured testing pieces without machining. High accuracy of KIC data were obtained compared with the references of National Physics laboratory, UK. The innovation provided reliable KIC measurement for R&D of ceramics/intermetallics materials.
high temperature corrosion
high temperature mechanical property
Chalmers, Industrial and Materials Science, Materials and manufacture
MoSi2 - matrix composites for combustion components exposed to high temperature oxidation and hot corrosion
Swedish Energy Agency (39298-1), 2014-09-01 -- 2018-04-30.
Composite Science and Engineering
Areas of Advance