Ceramic of the Mullite–ZrO2–SiAlON System During Spark Plasma Sintering
Refractories and Industrial Ceramics 2016
Gaida Maruta Sedmale, Māris Rundāns, Ingunda Šperberga, Janīna Sētiņa, Andris Cimmers

Results are provided for a study of ceramic of the mullite–ZrO2–SiAlON system formed from oxide mixtures with addition of SiAlON nanopowder during spark plasma sintering (SPS) compared with properties of similar ceramic prepared by traditional sintering. It is shown that ceramic prepared by the SPS-process (compared with traditional sintering) has high indices for density (3.10 – 3.32 g/cm3), ultimate strength in compression (295 – 305 MPa), and also a high elasticity modulus (170 – 180 MPa) after ten thermal shock cycles. This is due to the packing density of mullite formations within sintered specimen microstructure, including ZrO2 inclusions of cubic modification.

Ceramic materials; Mullite; Nanostructured materials; Silicate minerals; Spark plasma sintering; Zirconium alloys Cubic modifications; Elasticity moduli; Mullite formation; Nano powders; Packing density; Sialon ceramics; Sintered specimen; Ultimate strength

Sedmale, G., Rundāns, M., Šperberga, I., Sētiņa, J., Cimmers, A. Ceramic of the Mullite–ZrO2–SiAlON System During Spark Plasma Sintering. Refractories and Industrial Ceramics, 2016, Vol.57, Iss.2, pp.146-150. ISSN 1083-4877. Available from: doi:10.1007/s11148-016-9944-3

Publication language
English (en)
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