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| 二硼化锆基超高温陶瓷的制备及性能 | |
| 引用本文： | 王海龙,汪长安,张锐,黄勇,方岱宁. 二硼化锆基超高温陶瓷的制备及性能[J]. 硅酸盐学报, 2007, 35(12): 1590-1594 |
| 作者姓名： | 王海龙 汪长安 张锐 黄勇 方岱宁 |
| 作者单位： | 1. 郑州大学材料科学与工程学院,郑州,450000;清华大学,新型陶瓷与精细工艺国家重点实验室,北京,100084 2. 清华大学,新型陶瓷与精细工艺国家重点实验室,北京,100084 3. 郑州大学材料科学与工程学院,郑州,450000 4. 清华大学航空航天学院,北京,100084 |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| 摘 要： | 用碳化硅(SiC)颗粒增韧二硼化锆(ZrB2)陶瓷,在氩气流中热压烧结温度为1 950℃、保温1 h,20 MPa压力下成功制备出了致密的ZrB2/SiCp复合材料.ZrB2/SiCp复合材料的致密度随着SiC颗粒添加量的增加而增加.当SiC颗粒的体积分数(下同)为15%时,相对致密度达到100%.ZrB2/SiCp复合材料的抗弯强度和断裂韧性都随着SiC添加量的增加成上升趋势,当SiC颗粒的添加量在15%时同时达得最大值,分别为646 MPa和8.52 MPam·m1/2.SiCp的添加还提高了ZrB2/SiCp复合材料的耐氧化烧蚀性能. |
| 关 键 词： | 超高温陶瓷 二硼化锆 热压烧结 性能 ultra-high temperature ceramics zirconium diborde hot press sintering property |
| 文章编号： | 0454-5648（2007）12-1590-05 |
| 收稿时间： | 2007-04-21 |
| 修稿时间： | 2007-08-10 |
PREPARATION AND PROPERTIES OF ZIRCONIUM DIBORIDE-BASED ULTRA-HIGH TEMPERATURE CERAMICS |
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| WANG Hailong,WANG Chang'an,ZHANG Rui,HUANG Yong,FANG Daining. PREPARATION AND PROPERTIES OF ZIRCONIUM DIBORIDE-BASED ULTRA-HIGH TEMPERATURE CERAMICS[J]. Journal of The Chinese Ceramic Society, 2007, 35(12): 1590-1594 | |
| Authors: | WANG Hailong WANG Chang'an ZHANG Rui HUANG Yong FANG Daining |
| Abstract: | Zirconium diboride (ZrB2)-based ultra-high temperature ceramics (UHTC) reinforced by silicon carbide (SiC) particles were prepared by hot press sintering at 1 950 ℃ for 1 h under 20 MPa pressure in an argon flow. The relative density of ZrB2/SiCpcomposites increased with the content of SiC addition, and reached 100% when 15% (in volume) SiC particles were added. The bending strength and toughness of the composites also increased with increasing SiC amount, and reached values of 646 MPa and 8.52 MPa-m1/2, respectively, at 15% SiC addition. Furthermore, the addition of SiC particles improved the resistance to oxidation/ablation of ZrB2/SiCp composites. |
| Keywords: | ultra-high temperature ceramics zirconium diborde, hot press sintering property |
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