| 热爆反应制备原位颗粒增强镁基复合材料 |
| |
| 引用本文： | 纪秀林,王树奇.热爆反应制备原位颗粒增强镁基复合材料[J].机械工程材料,2006,30(5):41-43,77. |
| |
| 作者姓名： | 纪秀林 王树奇 |
| |
| 作者单位： | 1. 东南大学材料科学与工程系,江苏,南京,210096
2. 江苏大学材料科学与工程学院,江苏,镇江,212013 |
| |
| 摘 要： | 采用Mg-TiO2-B2O3体系热爆方法制备了原位颗粒增强镁基复合材料，并对材料进行了热力学、DTA、XRD和SEM分析。结果表明：在Mg-TiO2-B2O3体系中镁的加入量小于70％（质量分数）的情况下，体系的热爆反应可以在镁液的冶炼温度自发进行，同时可原位合成MgO和TiB2颗粒。5％Mg-TiO2-B2O3体系制备的镁基复合材料的抗拉强度和布氏硬度分别比基体提高了约26％和32％。
|
| 关 键 词： | 镁基复合材料 热爆反应 颗粒增强 |
| 文章编号： | 1000-3738（2006）05-0041-03 |
| 收稿时间： | 2005-03-19 |
| 修稿时间： | 2005-03-192005-05-25 |
Preparation of In-situ Particulate Reinforced Magnesium Matrix Composites with Thermal Explosion Reaction |
| |
| JI Xiu-ling,WANG Shu-qi.Preparation of In-situ Particulate Reinforced Magnesium Matrix Composites with Thermal Explosion Reaction[J].Materials For Mechanical Engineering,2006,30(5):41-43,77. |
| |
| Authors: | JI Xiu-ling WANG Shu-qi |
| |
| Affiliation: | 1. Southeast University, Nanjing 210096, China; 2. Jiangsu University, Zhenjiang 212013, China |
| |
| Abstract: | Thermal explosion of Mg-TiO2-B2O3 system was applied to prepare in-situ particulate reinforced magnesium matrix composite. The thermodynamics, DTA, XRD and SEM analyses were performed. The thermal explosion could spontaneously occur at the temperature of melting magnesium when the addition of magneium in the Mg-TiO2-B2O3 system was less than 70%mass and at the sametime the in-situ particulates of TiB2 and MgO were synthesized. The tensile strength and Brinell hardness of magnesium matrix composites prepared from 5%mass Mg- TiO2-B2O3 system were higher than those of magnesium matrix by about 26% and 32% separately. |
| |
| Keywords: | magnesium matrix composites thermal explosion reaction particulate reinforcement |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
