In Situ Observation of Crack Behavior in Compressively Loaded Plasma-Sprayed 7-wt%-Yttria-Stabilized Zirconia

• Published in: Journal of the American Ceramic Society Vol. 87; no. 5; pp. 960 - 962
• Main Authors: Levin, Jonathan P., Dickinson, Graeme R., Trice, Rodney W.
• Format: Journal Article
• Language: English
• Published: Westerville, Ohio American Ceramics Society 01-05-2004; Blackwell
• Subjects: Applied sciences; Building materials. Ceramics. Glasses; Ceramic industries; Chemical industry and chemicals; Exact sciences and technology; Miscellaneous; plasma spraying; Technical ceramics; testing; zirconia: yttria stabilized; Scanning electron microscopy; Compression; In situ; Binary system; Mechanical properties; Stabilized zirconia; Experimental study; Oxide ceramics; Crack propagation; Yttrium Oxides; Technical ceramics; Zirconium Oxides; Manufacturing; Microstructure; Plasma spraying; Crack
• ISSN: 0002-7820; 1551-2916
• DOI: 10.1111/j.1551-2916.2004.00960.x

A plasma‐sprayed 7‐wt%‐yttria‐stabilized zirconia stand‐alone tube was incrementally loaded in uniaxial compression inside a scanning electron microscope. Micrographs taken at each increment showed cracks perpendicular to the applied load to have partially closed and cracks parallel to the applied load to have opened. New cracks were observed to nucleate and then propagate in a direction parallel to the applied load.