Microstructure and toughness of seeded hot-pressed Si3N4 ceramics
Abstract
Densification, phase transformation and fracture toughness were studied in hot-pressed Si3N4 seeded by in-house produced large, elongated beta-Si3N4 seeds. A mixture of Y2O3-Al2O3 was used as the sintering aid. Concentration of seeds were varied from 0 to 6 wt pct and the sintering time at 1700 degreesC was varied from 1 to 4 h. Maximum fracture toughness of 9.0 MPam(1/2) was measured in samples containing 5 wt pct seeds, hot pressed at 1700 degreesC for 4 h.
Keywords:
in-situ composites / seeds / hot-pressing / silicon nitrideSource:
Journal of Materials Science and Technology, 2004, 20, 3, 241-244Collections
Institution/Community
VinčaTY - JOUR AU - Bučevac, Dušan AU - Bošković, Snežana B. AU - Vlajic, M AU - Krstic, V PY - 2004 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2772 AB - Densification, phase transformation and fracture toughness were studied in hot-pressed Si3N4 seeded by in-house produced large, elongated beta-Si3N4 seeds. A mixture of Y2O3-Al2O3 was used as the sintering aid. Concentration of seeds were varied from 0 to 6 wt pct and the sintering time at 1700 degreesC was varied from 1 to 4 h. Maximum fracture toughness of 9.0 MPam(1/2) was measured in samples containing 5 wt pct seeds, hot pressed at 1700 degreesC for 4 h. T2 - Journal of Materials Science and Technology T1 - Microstructure and toughness of seeded hot-pressed Si3N4 ceramics VL - 20 IS - 3 SP - 241 EP - 244 UR - https://hdl.handle.net/21.15107/rcub_vinar_2772 ER -
@article{ author = "Bučevac, Dušan and Bošković, Snežana B. and Vlajic, M and Krstic, V", year = "2004", abstract = "Densification, phase transformation and fracture toughness were studied in hot-pressed Si3N4 seeded by in-house produced large, elongated beta-Si3N4 seeds. A mixture of Y2O3-Al2O3 was used as the sintering aid. Concentration of seeds were varied from 0 to 6 wt pct and the sintering time at 1700 degreesC was varied from 1 to 4 h. Maximum fracture toughness of 9.0 MPam(1/2) was measured in samples containing 5 wt pct seeds, hot pressed at 1700 degreesC for 4 h.", journal = "Journal of Materials Science and Technology", title = "Microstructure and toughness of seeded hot-pressed Si3N4 ceramics", volume = "20", number = "3", pages = "241-244", url = "https://hdl.handle.net/21.15107/rcub_vinar_2772" }
Bučevac, D., Bošković, S. B., Vlajic, M.,& Krstic, V.. (2004). Microstructure and toughness of seeded hot-pressed Si3N4 ceramics. in Journal of Materials Science and Technology, 20(3), 241-244. https://hdl.handle.net/21.15107/rcub_vinar_2772
Bučevac D, Bošković SB, Vlajic M, Krstic V. Microstructure and toughness of seeded hot-pressed Si3N4 ceramics. in Journal of Materials Science and Technology. 2004;20(3):241-244. https://hdl.handle.net/21.15107/rcub_vinar_2772 .
Bučevac, Dušan, Bošković, Snežana B., Vlajic, M, Krstic, V, "Microstructure and toughness of seeded hot-pressed Si3N4 ceramics" in Journal of Materials Science and Technology, 20, no. 3 (2004):241-244, https://hdl.handle.net/21.15107/rcub_vinar_2772 .