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《材料导报》期刊社  2018, Vol. 32 Issue (10): 1602-1605    https://doi.org/10.11896/j.issn.1005-023X.2018.10.006
  材料研究 |
仿生制备多孔ZrC/C复合陶瓷材料
阚小清1,丁 军1,余 超1,邓承继1,祝洪喜1,樊国栋2,冷光辉2
1 武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉 430081;
2 河南东大高温节能材料有限公司,鹤壁 458030
Biomimetic Synthesis of Porous ZrC/C Composite Ceramic Materials
KAN Xiaoqing1, DING Jun1, YU Chao1, DENG Chengji1, ZHU Hongxi1, FAN Guodong2, LENG Guanghui2
1 The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081;
2 Henan Dongda High Temperature &
Energy Saving Material Co., Ltd, Hebi 458030
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摘要 以碳化后的梧桐木块作为碳模板,采用金属锆作为锆源,在KCl和KF的混合熔盐体系中制备了多孔ZrC/C复合陶瓷材料。研究了不同碳化温度对碳模板的显微形貌、显气孔率和体积密度的影响。并采用X射线光电子能谱(XPS)、傅里叶变换红外光谱(FTIR)、X射线衍射仪(XRD)和扫描电子显微镜(SEM)表征了梧桐木的碳化过程以及复合材料的物相组成和显微形貌。结果表明:梧桐木的碳化分为有机物的热分解和石墨化两个过程;碳化后的梧桐木保留了多孔的特征结构,随着碳化温度的升高,碳模板显气孔率变大,体积密度减小;反应时间的延长有利于增强ZrC层与碳模板基体表面的结合力;KF的加入量需要严格控制,过量的KF会破坏复合材料的结构。
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阚小清
丁 军
余 超
邓承继
祝洪喜
樊国栋
冷光辉
关键词:  仿生制备  ZrC/C  复合陶瓷  熔盐法  梧桐木    
Abstract: Porous ZrC/C composite ceramic materials were prepared in a KCl-KF molten salt reaction medium, using the carbonized platane wood as carbon source and Zr as metal source. Systematically investigations of the C templates on microstructures, apparent porosities and bulk densities in different carbonization temperatures were carried out. The carbonize procedure of platane wood and the phase compositions and morphological structures of the composite materials were characterized by X-ray photoelectron spectroscopy (XPS), fourier transform infrared (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the carbonization of platane wood included the two processes of organic matter decomposition and graphitization. The porous structure of platane wood was well retained in the resulting C templates. The apparent porosities of C templates increased and the bulk densities decreased with the increase of carbonization temperature. The increase of reaction time can strengthen the bin-ding force of ZrC layer and C template. The amount of KF requires strict control because excess KF can damage the structure of the composite material.
Key words:  biomimetic synthesis    ZrC/C    composite ceramic    molten salt synthesis    platane
               出版日期:  2018-05-25      发布日期:  2018-07-06
ZTFLH:  TQ175  
基金资助: 国家自然科学基金(51502215;51574187;51602232);国际合作项目(2015DFR50800)
通讯作者:  丁军:通信作者,男,1982年生,博士,副教授,主要从事碳材料改性及应用、非氧化物材料绿色合成以及材料微结构设计等方面的研究 E-mail:dingjun@wust.edu.cn   
作者简介:  阚小清:男,1992年生,硕士研究生,主要从事耐火材料与高技术陶瓷方面的研究 E-mail:284104939@qq.com
引用本文:    
阚小清,丁 军,余 超,邓承继,祝洪喜,樊国栋,冷光辉. 仿生制备多孔ZrC/C复合陶瓷材料[J]. 《材料导报》期刊社, 2018, 32(10): 1602-1605.
KAN Xiaoqing, DING Jun, YU Chao, DENG Chengji, ZHU Hongxi, FAN Guodong, LENG Guanghui. Biomimetic Synthesis of Porous ZrC/C Composite Ceramic Materials. Materials Reports, 2018, 32(10): 1602-1605.
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http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.10.006  或          http://www.mater-rep.com/CN/Y2018/V32/I10/1602
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