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- W2803868552 abstract "The present study reports mechanical properties obtained by reinforcing alumina composites with Ti(C,N) in amount 30 wt.% prepared on the basis micro and nanoscale trade powders. The pressureless sintering PS in a vacuum and SPS method of sintering were used. Vickers hardness, density, Young modulus, wear resistance were evaluated. Fracture toughness (KIC) at ambient and elevated temperatures up to 1073 K, characteristic for tool work was measured. Physical and mechanical properties of the composites Al2O3/Ti(C,N)/ZrO2 based on the powders in microscale were compared with composites containing nanoscale powders in a range from 17 to 36 wt.%. Tested composites with nanoscale powders content reveal lower KIC (approx. 10÷30%) at ambient temperature in comparison to composites based on powders in microscale. However, in the elevated temperatures their fracture toughness increases up to 30%. The observation of the microstructure of tested composites was carried out using scanning electron microscopy." @default.
- W2803868552 created "2018-06-01" @default.
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- W2803868552 date "2018-05-28" @default.
- W2803868552 modified "2023-09-26" @default.
- W2803868552 title "Mechanical properties of titanium carbonitride reinforced alumina tool composites" @default.
- W2803868552 doi "https://doi.org/10.17814/mechanik.2018.5-6.55" @default.
- W2803868552 hasPublicationYear "2018" @default.
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