Y-TZP/SiC composites SiC properties: excellent hardness (Mohs: 9,5)
{"Image DocumentName": "Y-TZP/SiC composites SiC properties: excellent hardness (Mohs: 9,5)", "Image ImageDescription": "excellent wear resistance. very brittle. SiC inclusions shapes: whiskers. platelets. particles. Composite properties. material. E. \u03c3. KIC. Hv. Y-TZP. 220 GPa. 959 MPa. 9.0 MPa m1/2. 12 GPa. Y-TZP/5% SiC. 231 GPa. 730 MPa MPa m1/2. 13 GPa. stresses caused by thermal expansion coefficient mismatch during cooling (\u03b1WC=4.9 10-6 K-1, \u03b1TZP=11.0 10-6 K-1 play secondary role. - other toughening mechanisms appear: - crack deflection. - crack branching. - microcracking. Solid state reactions above 1400OC: ZrO2 + 3/2SiC \u2192 ZrC + 3/2SiO + 1/2CO \u2013 gaseous CO generates pores. SiC + CO \u2192 SiO + 2C \u2013 decomposition of carbide. Ding, Oberacker, Thuemmler: Journal of the European Ceramic Society 12 (1993) Interdyscyplinarne studia doktoranckie z zakresu in\u017cynierii materia\u0142owej z wyk\u0142adowym j\u0119zykiem angielskim.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}