硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (4): 1324-1334.DOI: 10.16552/j.cnki.issn1001-1625.2025.0934
刘宏瑞1,2(
), 马登浩2, 陈科3, 程业红4, 王洪磊1(
), 余金山1, 周新贵1(
)
收稿日期:2025-09-19
修订日期:2025-10-03
出版日期:2026-04-20
发布日期:2026-05-14
通信作者:
王洪磊,博士,副教授。E-mail:honglei.wang@163.com;作者简介:刘宏瑞(1987—),男,博士研究生。主要从事陶瓷基复合材料方面的研究。E-mail:liu_hongrui@126.com
基金资助:
LIU Hongrui1,2(
), MA Denghao2, CHEN Ke3, CHENG Yehong4, WANG Honglei1(
), YU Jinshan1, ZHOU Xingui1(
)
Received:2025-09-19
Revised:2025-10-03
Published:2026-04-20
Online:2026-05-14
摘要:
SiCN陶瓷具有低密度、出色的高温稳定性与可调的介电特性,是满足高速飞行器对轻质、耐高温、高效吸波迫切需求的关键材料体系之一,但阻抗失配是制约其吸波性能进一步提升的瓶颈,其中,热处理温度通过改变材料物相组成与微观结构,成为调控SiCN陶瓷阻抗匹配特性的关键因素。因此,本文通过调控热处理温度优化SiCN陶瓷的介电特性和吸波性能,采用先驱体预裂解结合热压烧结工艺在不同温度下制备了SiCN陶瓷样品,通过波导法准确测量陶瓷样品的复介电常数。结果表明,1 300 ℃热压烧结制备的SiCN陶瓷具有适宜的复介电常数和阻抗匹配特性,在X波段和Ku波段表现出优异的吸波性能,有效吸收带宽分别达到2.86和4.42 GHz。1 400 ℃热压烧结制备的SiCN陶瓷的石墨化程度提高、复介电常数过高引发阻抗失配,导致表面反射加剧、吸波性能下降。
中图分类号:
刘宏瑞, 马登浩, 陈科, 程业红, 王洪磊, 余金山, 周新贵. 热压烧结SiCN陶瓷的介电和吸波性能[J]. 硅酸盐通报, 2026, 45(4): 1324-1334.
LIU Hongrui, MA Denghao, CHEN Ke, CHENG Yehong, WANG Honglei, YU Jinshan, ZHOU Xingui. Dielectric Property and Microwave Absorption Performance of Hot-Pressing Sintering SiCN Ceramics[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(4): 1324-1334.
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