[1]王思惠.锆/锂取代反应合成聚锆硼硅氮烷和热解制备陶瓷[J].中国材料进展,2019,(10):1037-1040.[doi:10.7502/j.issn.1674-3962201806031]
WANG Sihui.Synthesis of Polyzirconborosilazane via Zirconium/Lithium Substitution and Pyrolysis to Ceramics[J].MATERIALS CHINA,2019,(10):1037-1040.[doi:10.7502/j.issn.1674-3962201806031]
点击复制
锆/锂取代反应合成聚锆硼硅氮烷和热解制备陶瓷(
)
中国材料进展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
-
- 期数:
-
2019年第10期
- 页码:
-
1037-1040
- 栏目:
-
- 出版日期:
-
2019-10-30
文章信息/Info
- Title:
-
Synthesis of Polyzirconborosilazane via Zirconium/Lithium Substitution and Pyrolysis to Ceramics
- 作者:
-
王思惠1; 2
-
(1. 天津大学材料科学与工程学院 先进陶瓷与加工技术教育部重点实验室,天津 300072)(2. 天津市建筑材料科学研究院有限公司,天津 300380)
- Author(s):
-
WANG Sihui1; 2
-
(1. Key Laboratory of Advanced Ceramics and Machining Technology,School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China) (2. Science Research Academy of Tianjin Building Materials Co., Ltd., Tianjin 300380, China)
-
- 关键词:
-
前驱体陶瓷; 氨解; 硼氢化; 聚硼硅氮烷; 硅硼碳氮陶瓷; 金属取代
- Keywords:
-
polymerderived ceramic; ammonolysis; hydroboration; polyborosilazane(PBSZ); SiBCN ceramic; metallic substitution
- DOI:
-
10.7502/j.issn.1674-3962201806031
- 文献标志码:
-
A
- 摘要:
-
采用前驱体分子结构设计的方法,通过氨解、硼氢化反应制备聚硼硅氮烷(PBSZ)。以氯化锆为锆源,通过锆/锂取代反应将锆原子引入PBSZ中,合成聚锆硼硅氮烷(PZrBSZ),在氩气保护下1100 ℃热解制备含锆硅硼碳氮(SiZrBCN)陶瓷。研究了锆/锂取代反应的特征、PZrBSZ的形成过程,表征了PZrBSZ的化学结构。采用红外光谱分析PBSZ和PZrBSZ,对比发现PZrBSZ在584和917 cm-1处出现特征峰,推测分别对应为Zr—N和Si—N—Zr的特征峰,表明通过锆/锂取代反应已成功将Zr原子引入到前驱体分子中。通过扫描电镜观察PZrBSZ在氩气中热解制得的SiZrBCN,发现其断面虽有气孔但局部致密,这表明PZrBSZ热解可制备SiZrBCN陶瓷。
- Abstract:
-
The precursorpolyborosilazane (PBSZ) is synthezed via ammonolysis and hydroboration reactions with the precursor molecular structure design. Polyzirconborosilazane (PZrBSZ) is obtained via incorporating Zr atoms into PBSZ network by zirconium/lithium substitution reaction. The PZrBSZ is pyrolysed to SiZrBCN ceramics at 1100 ℃ in a flowing argon atmosphere. The characteristics of zirconium/lithium substitution reaction and the preparation process of PZrBSZ are studied. The chemical structures of the PZrBSZ are analyzed by FTIR. In the FTIR spectra, the characteristic peaks at 584 and 917 cm-1 can be assigned to Zr—N and Si—N—Zr stretching respectively, indicating that zirconium atoms have been successfully introduced into the precursorpolyborosilazane by zirconium/lithium substitution reaction. SEM observes that the ceramics have pores but are compact partly in the crosssection after the pyrolysis of PZrBSZ, which indicated that SiZrBCN ceramics could be prepared by pyrolysis of PZrBSZ.
备注/Memo
- 备注/Memo:
-
收稿日期:2018-06-27修回日期:2018-08-21 基金项目:国家自然科学基金资助项目(51772204)第一作者:王思惠,女,1986年生,博士后,工程师,Email:wangsihui@tju.edu.cn
更新日期/Last Update:
2019-11-15