摘要
以TiO2、B2O3、Mg为原料,用机械合金化方法制备TiB2+MgO粉末。对所得粉末的结构、粒度及反应机理等进行了分析研究。结果表明:机械合金化制备TiB2和MgO混合粉末的反应机理为机械诱发自蔓延反应;球磨2h得到的混合粉末的平均粒径可达到4μm。
A mixture of rutile, boron oxide and magnesium was ball-milled together with the intention of inducing a reaction to form titanium diboride. The resultant powders were examined by differential thermal analysis, X-ray diffraction and laser particle size analysis, and the reaction mechanism were discussed. The formation mechanism is self-propagating reactive synthesis induced by mechanical alloying. The particle size of powder after milling 2h is about 4μm.
出处
《机械工程材料》
CAS
CSCD
北大核心
2004年第3期25-27,共3页
Materials For Mechanical Engineering
基金
云南省应用基础研究基金资助项目(99E0035M)
关键词
TIB2
机械合金化
陶瓷材料
自蔓延
TiB_2
mechanical alloying
ceramic
self-propagating reactive synthesis
