Materials based on Si 3 N 4 -BN were obtained by liquid-phase sintering using 20 & # 37; (by volume) YAG as a sintering aid. To obtain composite materials, we used boron nitride powders of hexagonal (h-BN) and turbostratic (t-BN) structures. Highly amorphous t-BN contributes to the compaction of the material of the composition (& # 37; by volume): 60 Si 3 N 4 + 20 t-BN + 20 YAG and the achievement of the highest physical mechanical properties: & # 961; = 2.78 g / cm 3 ; P = 14.5 & # 37 ;; E control = 92.3 GPa; & # 963; outgrowth = 161.4 MPa. The chemical resistance of the obtained materials reaches 97.0 & # 37; and increases in the series H 2 SO 4 - HCl - HNO 3 , which indicates intergranular corrosion without propagation into the bulk of the material. However, resistance to exposure to 48 & # 37; HF is lowest due to small cracks in surface intergranular layers and
deeper corrosion
Perevislov S.N., Nesmelov D.D. Properties of composite ceramics based on SiC and Si3N4 with a nano-dimensional component // Glass and ceramics. 2016.? 7.P. 15? 18.
? Perevislov SN, Nesmelov DD Properties of SiC and Si3N4 based composite ceramic with nanosize component // Glass ceram. 2016. V. 73. No. 7.P. 249? 252.].
Lysenkov AS, Kim KA, Titov DD et al. Composite material Si3N4 / SiC with calcium aluminate additive // ??Journal of Physics: Conference Series. 2018. V. 1134. No. 1. P. 012036.
Lukianova OA, Khmara AN, Perevislov SN et al. Electrical resistivity of silicon nitride produced by various methods // Ceramics International. 2019. V. 45. No. 7.P. 9497? 9501.
Eichler J., Lesniak C. Boron nitride (BN) and BN composites for high-temperature applications // Journal of the European Ceramic Society. 2008. V. 28. P. 1105? 1109.
Eichler J., Uibel K., Lesniak C. Boron nitride (BN) and boron nitride composites for applications under extreme conditions // Advances in Science and Technology. 2010. V. 65. P. 61? 69.
Duan X., Jia D., Wu Z. et al. Effect of sintering pressure on the texture of hot-press sintered hexagonal boron nitride composite ceramics // ScriptaMaterialia. 2013. V. 68. P. 104? 107.
Zou L., Huang Y., Wang C. The characterization and measurement of interfacial toughness for Si3N4 / BN composites by the four-point bend test // Journal of the European Ceramic Society. 2004. V. 24. P. 2861? 2868.
Krstic Z., Krstic VD Young's modulus, density and phase composition of pressureless sintered self-sealed Si3N4 / BN laminated structures // Journal of the European Ceramic Society. 2008. V. 28. P. 1723? 1730.
Koval ?? kov? A., Balko J., Balzsi C. et al. Influence of h-BN content on mechanical and tribological properties of Si3N4 / BN ceramic composites // Journal of the European Ceramic Society. 2014. V. 34. P. 3319? 3328.
Wang C., Huang Y., Zan Q. et al. Control of composition and structure in laminated silicon nitride / boron nitride composites // Journal of the American Ceramic Society. 2002. V. 85. P. 2457? 2461.
Koh Y.-H., Kim H.-W., Kim H.-E. et al. Thermal shock resistance of fibrous monolithic Si3N4 / BN ceramics // Journal of the European Ceramic Society. 2004. V. 24. P. 2339? 2347.
Shan YC, Wang G., Ye H. et al. Fabrication of high strength? -SiAlON / BN composition ceramics by hot pressing // Key engineering materials. ? Trans Tech Publications. 2012. V. 512. P. 816? 819.
Perevislov SN, Lysenkov AS, Titov DD et al. Hot-pressed ceramic SiC? YAG materials // Inorganic Materials. 2017. V. 53. No. 2.P. 220? 225.
Perevislov SN, Panteleev IB, Shevchik AP et al. Microstructure and mechanical properties of SiC-materials sintered in the liquid phase with the addition of a finely dispersed agent // Refractories and Industrial Ceramics. 2018. V. 58. No. 5.P. 577? 582.
Li Y., Liu P., Wang X. et al. Interface structure and formation mechanism of BN / intergranular amorphous phase in pressureless sintered Si3N4 / BN composites // Scripta Materialia. 2010. V. 63. P. 185? 188.
Cavalli L. Reaction bonded Si3N4 (RBSN) / BN composites for industrial applications // Advances in Science and Technology. 2014. V. 89. P. 57? 62.
Perevislov SN Mechanism of liquid-phase sintering of silicon carbide and nitride with oxide activating additives // Glass and ceramics. 2013.? 7.P. 34? 38.
[Perevislov SN Mechanism of liquid-phase sintering of silicon carbide and nitride with oxide activating additives // Glass Ceram. 2013. V. 70. No. 7? 8.P.265? 268.]
ErshovaN. I., Kelina I. Yu. Thermophysical properties of composite materials in the Si3N4-BN system // Refractories and industrial ceramics. 2005. V. 46. No 1.P. 12? 14.
Kelina I. Yu., Tkacheva II, Arakcheev AV et al. Tribological properties and testing of bearings fabricated from hot-pressed silicon nitride-based ceramics // Refractories and industrial ceramics. 2005. V. 46. No. 1.P. 15? 20.
Gao L., Jin X., Li J. et al. BN / Si3N4 nanocomposite with high strength and good machinability // Materials Science and Engineering: A. 2006. V. 415. No. 1.P. 145? 148.
Wei D., Meng Q., Jia D. Mechanical and tribological properties of hot-pressed h-BN / Si3N4 ceramic composites // Ceramics international. 2006. V. 32. No. 5.P. 549? 554.
Wei D., Meng Q., Jia D. Microstructure of hot-pressed h-BN / Si3N4 ceramic composites with Y2O3? Al2O3 sintering additive // ??Ceramics international. 2007. V. 33. No. 2.P. 221? 226.
Dong W., Wang CA, Yu L. et al. Effect of BN content on microstructure and properties of porous BN / Si3N4 ceramics // Acta Materiae Compositae Sinica. 2013. V. 1. P. 125? 127.
Liu M., Song Y., Xu X. et al. Hot-pressing and mechanical properties of BN based composites // Characterization of Minerals, Metals, and Materials. 2015. P. 479? 485.
Liu M., Song Y., Xu X. et al. Effect of magnesium aluminate spinel content on properties of BN based composites // Characterization of Minerals, Metals, and Materials. 2016. P. 599? 604.
Kelina I. Yu., Ershova NI, Drobinskaya VA et al. Chemical stability of a composite material based on silicon and boron nitrides // Refractories and industrial ceramics. 1998. V. 39. No. 11-12. R. 404? 410.
Gogotsi Yu. G., Lavrenko VA Corrosion of high-performance ceramics // Springer science & business media. 2012.181 p.
Sato T., Tokunaga Y., Endo T. et al. Corrosion of silicon nitride ceramics in aqueous HF solutions // Journal of materials science. 1988. V. 23. No. 10.P. 3440? 3446.
Sharkawy SW, El-Aslabi AM Corrosion of silicon nitride ceramics in aqueous HCl and HF solutions at 27? 80? C // Corrosion science. 1998. V. 40. No. 7.P. 1119? 1129.
Lavrenko VA, Gogotsi YG Corrosion of structural ceramics. M .: Metallurgy, 1989.198 p.
The article can be purchased
electronic!
PDF format
500 руб
UDK 666.3-13
Article type:
Materials and properties
Make a request
