Synthesis of SiC Precursors by Sol-Gel Process

Abstract

Abstract: To minimize the contamination of detrimental elements such as sulfur and chlorine, a two-step sol-gel process was successfully developed to
synthesize SiC precursors with oxalic acid and hexamethylenetetramine (HMTA) as the catalysts, which are free of sulfur and chlorine.
Tetraethoxysilane (TEOS) and phenolic resin were used as the silicon source and carbon source, respectively. At the first step TEOS was
prehydrolyzed under the catalysis of oxalic acid. At the second step HMTA was added to accelerate gelation. The dependence of products on oxalic
acid content, prehydrolysis time, and prehydrolysis temperature was concluded. The mechanisms of hydrolysis and condensation were discussed.
The SiC precursors obtained were transparent yellowish glassy solids, with homogeneous microstructure composed of nanometer sized particles.

Key words: silicon carbide, precursor, sol-gel

CLC Number:

TQ127

TIAN Jie-Mo,LI Jin-Wang,DONG Li-Min. Synthesis of SiC Precursors by Sol-Gel Process[J]. Journal of Inorganic Materials.

[1]	WANG Hao, LIU Xuechao, ZHENG Zhong, PAN Xiuhong, XU Jintao, ZHU Xinfeng, CHEN Kun, DENG Weijie, TANG Meibo, GUO Hui, GAO Pan. Performance of Lateral 4H-SiC Photoconductive Semiconductor Switches by Extrinsic Backside Trigger [J]. Journal of Inorganic Materials, 2024, 39(9): 1070-1076.
[2]	SHEN Bin, ZHANG Xu, XIONG Huai, LI Haiyuan, XIE Xinglong. Preparation and Optical Properties of Sol-Gel SiO₂ Antireflective Films [J]. Journal of Inorganic Materials, 2024, 39(5): 525-530.
[3]	SUN Chuan, HE Pengfei, HU Zhenfeng, WANG Rong, XING Yue, ZHANG Zhibin, LI Jinglong, WAN Chunlei, LIANG Xiubing. SiC-based Ceramic Materials Incorporating GNPs Array: Preparation and Mechanical Characterization [J]. Journal of Inorganic Materials, 2024, 39(3): 267-273.
[4]	DAI Le, LIU Yang, GAO Xuan, WANG Shuhao, SONG Yating, TANG Mingmeng, DMITRY V Karpinsky, LIU Lisha, WANG Yaojin. Self-polarization Achieved by Compositionally Gradient Doping in BiFeO₃ Thin Films [J]. Journal of Inorganic Materials, 2024, 39(1): 99-106.
[5]	XU Hao, QIAN Wei, HUA Yinqun, YE Yunxia, DAI Fengze, CAI Jie. Effects of Micro Texture Processed by Picosecond Laser on Hydrophobicity of Silicon Carbide [J]. Journal of Inorganic Materials, 2023, 38(8): 923-930.
[6]	SHI Zhe, LIU Weiye, ZHAI Dong, XIE Jianjun, ZHU Yufang. Akermanite Scaffolds for Bone Tissue Engineering: 3D Printing Using Polymer Precursor and Scaffold Properties [J]. Journal of Inorganic Materials, 2023, 38(7): 763-770.
[7]	CHEN Qiang, BAI Shuxin, YE Yicong. Highly Thermal Conductive Silicon Carbide Ceramics Matrix Composites for Thermal Management: a Review [J]. Journal of Inorganic Materials, 2023, 38(6): 634-646.
[8]	YUAN Jingkun, XIONG Shufeng, CHEN Zhangwei. Research Trends and Challenges of Additive Manufacturing of Polymer-derived Ceramics [J]. Journal of Inorganic Materials, 2023, 38(5): 477-488.
[9]	GU Xuesu, YIN Jie, WANG Kanglong, CUI Chong, MEI Hui, CHEN Zhongming, LIU Xuejian, HUANG Zhengren. Effect of Particle Grading on Properties of Silicon Carbide Ceramics by Binder Jetting Printing [J]. Journal of Inorganic Materials, 2023, 38(12): 1373-1378.
[10]	JIA Yuna, CAO Xu, JIAO Xiuling, CHEN Dairong. Preparation of Alumina Ceramic Continuous Fibers with Inorganic Acidic Aluminum Sol as Precursor [J]. Journal of Inorganic Materials, 2023, 38(11): 1257-1264.
[11]	OUYANG Qin, WANG Yanfei, XU Jian, LI Yinsheng, PEI Xueliang, MO Gaoming, LI Mian, LI Peng, ZHOU Xiaobing, GE Fangfang, ZHANG Chonghong, HE Liu, YANG Lei, HUANG Zhengren, CHAI Zhifang, ZHAN Wenlong, HUANG Qing. Research Progress of SiC Fiber Reinforced SiC Composites for Nuclear Application [J]. Journal of Inorganic Materials, 2022, 37(8): 821-840.
[12]	RUAN Jing, YANG Jinshan, YAN Jingyi, YOU Xiao, WANG Mengmeng, HU Jianbao, ZHANG Xiangyu, DING Yusheng, DONG Shaoming. Porous SiC Ceramic Matrix Composite Reinforced by SiC Nanowires with High Strength and Low Thermal Conductivity [J]. Journal of Inorganic Materials, 2022, 37(4): 459-466.
[13]	SUN Yanan, YE Li, ZHAO Wenying, CHEN Fenghua, QIU Wenfeng, HAN Weijian, LIU Wei, ZHAO Tong. Synthesis of High Entropy Carbide Nano Powders via Liquid Polymer Precursor Route [J]. Journal of Inorganic Materials, 2021, 36(4): 393-398.
[14]	MAN Xin, WU Nan, ZHANG Mu, HE Hongliang, SUN Xudong, LI Xiaodong. Lu₂O₃-MgO Nano-powder: Synthesis and Fabrication of Composite Infrared Transparent Ceramics [J]. Journal of Inorganic Materials, 2021, 36(12): 1263-1269.
[15]	LIU Qian, WANG Jiacheng, ZHOU Zhenzhen, XU Xiaoke. Research Progress on High Throughput Parallel Synthesis of Micro-nano Powders Libraries [J]. Journal of Inorganic Materials, 2021, 36(12): 1237-1246.

Synthesis of SiC Precursors by Sol-Gel Process

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments