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Information × Registration Number 0308U003997, 0106U011939 , R & D reports Title Investigation of mechanical properties of ceramics and titanium alloys for fuel cells popup.stage_title Оптимізація фізико-механічних властивостей керамік і титанових сплавів для паливних комірок Head Ostash Orest Petrovych, Registration Date 21-08-2008 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 A test unit for estimation of strength, endurance and cyclic crack growth resistance of ceramics in high-temperature (up to 900 С) gaseous environment (hydrogen, argon etc.) has been produced. It was established that comparing to laboratory air hydrogenous environment at room temperature causes degradation in ZrO2+3mol.%Y2O3 ceramics crack growth resistance, in particular the threshold stress intensity factor becomes 1,5 times lower. It was found that the endurance limit for ZrO2-6mol.%Y2O3 ceramics is lowered from 360 to 150 MPa during temperature increase from normal to 800 С. It was established that the cyclic fracture toughness of Ti-1,4Si-8,5Al-2,2Zr hypo-eutectic alloy increases 1,7 times during temperature increase from 20 to 700 С, contrary to that of Ti-4Si-5Al-5Zr hyper-eutectoid alloy. Product Description popup.authors popup.nrat_date 2020-04-02 Close