| 热压烧结制备高致密度B4C陶瓷及其致密化 |
| |
| 引用本文： | 朱保鑫,张玉军,岳双双,姜立平.热压烧结制备高致密度B4C陶瓷及其致密化[J].现代技术陶瓷,2013(6):7-11. |
| |
| 作者姓名： | 朱保鑫 张玉军 岳双双 姜立平 |
| |
| 作者单位： | [1]山东工业陶瓷研究设计院有限公司,淄博255000 [2]山东大学材料液态结构及其遗传性教育部重点实验室,济南250061 |
| |
| 摘 要： | 以B4C粉末为原料,以酚醛树脂热解碳为烧结助剂,采用真空热压烧结工艺制备出高致密度的B4C陶瓷材料,探讨了酚醛树脂含量和烧结温度对材料致密化的影响,对比分析了纯B4C和掺碳B4C的热压烧结致密化过程.研究显示,烧结温度的升高有利于材料的致密化,酚醛树脂的添加则显著活化了B4C的烧结.实验条件下酚醛树脂的最优添加量为3％（质量分数）,烧结过程中热解碳固溶于B4C晶格,显著加速了其在1600℃至1800℃区间的致密化速率.
|
| 关 键 词： | B4C 酚醛树脂 热压烧结 致密化 |
High Compact B4C Ceramics Prepared by Hot-press Sintering and Its Densification |
| |
| Affiliation: | Zhu Baoxinl Zhang Yujun2 Yue ShuangshuangI Jang Liping (1 Shandong Research and Design Institude of Industrial Ceramic, Zibo 255031; 2 Key Laboratory for Liquid Structure and Heredity of Materials of Education Ministry, Shandong University, Jinan 250061) |
| |
| Abstract: | B4C ceramics were fabricated by hot--press sintcring with phenolic resin as the precur- sor of pyrolysis carbon agent. The influences of additive and sintering temperature on the density of B4C ceramics as well as their hot--press sintering densification process were studied. The results showed that the increase of sintering temperature was beneficial to the densification of B4 C ceramics, while phenolic resin was significantly reduce the sintering activation energy of B4 C. When the phenol- ic resin content was 3%, the hot--press sintering densification rate of B4C ceramics bewteen 1600 ℃ and 1800 ℃ increased due to the solid soluting of pyrolysis carbon into B4C grains. |
| |
| Keywords: | boron carbide phenolic resin hot--press sintering densification |
| 本文献已被 维普 等数据库收录！ |
|
