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Preparation and properties of SiAlON ceramics by gel casting and pressureless sintering

J. Li   ORCID icon orcid.org/0000-0002-6099-8349 ; School of Metallurgy and Environment, Central South University, Changsha, China
C. F. Zhang ; School of Metallurgy and Environment, Central South University, Changsha, China
R. M. Yin ; College of Metallurgical Engineering, Hunan University of Technology, Zhuzhou, China
W. H. Zhang ; School of Metallurgy and Environment, Central South University, Changsha, China

Puni tekst: engleski, pdf (226 KB) str. 71-74 preuzimanja: 106* citiraj
APA 6th Edition
Li, J., Zhang, C.F., Yin, R.M. i Zhang, W.H. (2019). Preparation and properties of SiAlON ceramics by gel casting and pressureless sintering. Metalurgija, 58 (1-2), 71-74. Preuzeto s https://hrcak.srce.hr/206499
MLA 8th Edition
Li, J., et al. "Preparation and properties of SiAlON ceramics by gel casting and pressureless sintering." Metalurgija, vol. 58, br. 1-2, 2019, str. 71-74. https://hrcak.srce.hr/206499. Citirano 20.09.2019.
Chicago 17th Edition
Li, J., C. F. Zhang, R. M. Yin i W. H. Zhang. "Preparation and properties of SiAlON ceramics by gel casting and pressureless sintering." Metalurgija 58, br. 1-2 (2019): 71-74. https://hrcak.srce.hr/206499
Harvard
Li, J., et al. (2019). 'Preparation and properties of SiAlON ceramics by gel casting and pressureless sintering', Metalurgija, 58(1-2), str. 71-74. Preuzeto s: https://hrcak.srce.hr/206499 (Datum pristupa: 20.09.2019.)
Vancouver
Li J, Zhang CF, Yin RM, Zhang WH. Preparation and properties of SiAlON ceramics by gel casting and pressureless sintering. Metalurgija [Internet]. 2019 [pristupljeno 20.09.2019.];58(1-2):71-74. Dostupno na: https://hrcak.srce.hr/206499
IEEE
J. Li, C.F. Zhang, R.M. Yin i W.H. Zhang, "Preparation and properties of SiAlON ceramics by gel casting and pressureless sintering", Metalurgija, vol.58, br. 1-2, str. 71-74, 2019. [Online]. Dostupno na: https://hrcak.srce.hr/206499. [Citirano: 20.09.2019.]

Sažetak
This study employed a low-toxicity N, N-dimethylacrylamide/N, N-methylene acrylamide (DMAA /MBAM) gel system to near net shape SiAlON ceramics from aqueous slurries with a solid loading of 40 wt.% Si3N4, Al2O3, Y2O3, AlN, and Ce2O3 powder mixtures. The green bodies were sintered by one- and three-step pressureless sintering. Results showed that green bodies had a homogeneous microstructure with a high density of 1,9 g/cm3 and high flexural strength of 28,6 Mpa. Equiaxed α-SiAlON was prepared by one-step pressureless sintering, whereas β-Si4Al2O2N6 with an elongated morphology was fabricated by three-step pressureless sintering. Therefore, a lowtemperature heat preservation stage reduces the nucleation rate, which is favorable for the development of elongated β-SiAlON grains.

Ključne riječi
SiAlON ceramics; gelcasting; pressureless sintering; microstructure; mechanical properties

Hrčak ID: 206499

URI
https://hrcak.srce.hr/206499

Posjeta: 161 *