Synthesis and Characterization of Polyborosilazane for Silicoboron-Carbonitride Ceramic

Abstract

A silicoboron-carbonitride (SiBNC) ceramic precursor, polyborosilazane (PBSZ), was successfully synthesized using boron trichloride (BCl₃), trichlorosilane (HSiCl₃) and hexamethyldisilazane (Me₆Si₂NH) as raw materials through the polymer-derived ceramics (PDCs) method. Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC) were used to analyze the structure and high-temperature performance of the obtained PBSZ. Results showed that the network of silicon nitrogen boron (Si—N—B) and six-membered boron nitrogen (B—N) rings were presented in the PBSZ structure. The ceramic yield of the synthesized PBSZ at

800 ℃ in a nitrogen atmosphere was 53. 9%.

Keywords

silicoboron-carbonitride(SiBNC) ceramic / ceramic precursor / polyborosilazane(PBSZ) / polymer-derived ceramics(PDCs) method

References

[1] KAMAL A, RAJASEKHAR B V, PAINULY A, et al. A novel precursor for the synthesis of mixed non-oxide ultra high temperature ceramics[J]. Journal of Inorganic and Organometallic Polymers and Materials, 2020, 30(5):1578-1588.

[2] JI X Y, SHAO C W, WANG H, et al. A simple and efficient method for the synthesis of SiBNC ceramics with different Si/B atomic ratios[J]. Ceramics International, 2017, 43(10):7469-7476.

[3] LEE J, BUTT D P, BANEY R H, et al. Synthesis and pyrolysis of novel polysilazane to SiBCN ceramic[J]. Journal of Non-Crystalline Solids, 2005, 351(37/38/39):2995-3005.

[4] YU Z J, PEI Y X, LAI S Y, et al. Single-source-precursor synthesis,microstructure and high temperature behavior of TiC-TiB₂-SiC ceramic nanocomposites[J]. Ceramics International, 2017, 43(8):5949-5956.

[5] ZHANG L S, TANG Z C, TUSIIME R, et al. Synthesis and electromagnetic wave absorbing properties of a polymer-derived SiBNC ceramic aerogel[J]. Ceramics International, 2021, 47(13):18984-18990.

[6] LUAN X G, GU S M, ZHANG Q Q, et al. An electrically conductive SiBCN film prepared via polymer-derived ceramic and chemical vapor deposition methods[J]. Sensors and Actuators A:Physical, 2021,330:112824.

[7] YUAN W, WANG Y, LUO Z, et al. Improved performances of SiBCN powders modified phenolic resins-carbon fiber composites[J]. Processes, 2021, 9(6):955.

[8] ZHAO H, CHEN L X, LUAN X G, et al.Synthesis, pyrolysis of a novel liquid SiBCN ceramic precursor and its application in ceramic matrix composites[J]. Journal of the European Ceramic Society, 2017, 37(4):1321-1329.

[9] PUERTA A R, REMSEN E E, BRADLEY M G, et al. Synthesis and ceramic conversion reactions of 9-BBN-modified allylhydrido-polycarbosilane:a new single-source precursor to boron-modified silicon carbide[J]. Chemistry of Materials, 2003, 15(2):478-485.

[10] GE Y Y, SUN S Y, WANG Q, et al. Effect of Fe-contained species on the preparation of α-Si3N4 fibers in combustion synthesis[J]. Journal of the American Ceramic Society, 2016, 99(4):1464-1471.

[11] SHEN Z E, REN S, GE C, et al. Recent progress on fabrication of thermal conductive aluminum nitride fibers[J]. Journal of Donghua University(English Edition), 2023, 40(6):622-630.

[12] COLOMBO P, MERA G, RIEDEL R, et al. Polymer-derived ceramics:40 years of research and innovation in advanced ceramics[J]. Journal of the American Ceramic Society, 2010, 93(7):1805-1837.

[13] WANG Y, CHEN L X, XU T T, et al. High char yield novolac modified by Si-B-N-C precursor:thermal stability and structural evolution[J]. Polymer Degradation and Stability, 2017,137:184-196.

[14] ZHANG Q, YANG Z H, JIA D C, et al. Synthesis and structural evolution of dual-boron-source-modified polysilazane derived SiBCN ceramics[J]. New Journal of Chemistry, 2016, 40(8):7034-7042.

[15] KONG J, WANG M J, ZOU J H, et al. Soluble and meltable hyperbranched polyborosilazanes toward high-temperature stable SiBCN ceramics[J]. ACS Applied Materials & Interfaces, 2015, 7(12):6733-6744.

[16] BERNARD S, WEINMANN M, CORNU D, et al. Preparation of high-temperature stable SiBCN fibers from tailored single source polyborosilazanes[J]. Journal of the European Ceramic Society, 2005, 25(2/3):251-256.

[17] JÄSCHKE T, JANSEN M, Synthesis and characterization of new amorphous Si/B/N/C ceramics with increased carbon content through single-source precursors[J]. Comptes Rendus-Chimie, 2004, 7(5):471-482.

[18] YUAN J, HAPIS S, BREITZKE H, et al. Single-source-precursor synthesis of hafnium-containing ultrahigh-temperature ceramic nanocomposites (UHTC-NCs)[J]. Inorganic Chemistry, 2014, 53(19):10443-10455.

[19] GU J W, LIANG C B, DANG J, et al. Ideal dielectric thermally conductive bismaleimide nanocomposites filled with polyhedral oligomeric silsesquioxane functionalized nanosized boron nitride[J]. RSC Advances, 2016, 6(42):35809-35814.

Funding

Key Laboratory of National Defense Science and Technology, China(6142906190510)