In Situ Synthesis Aluminum Borate Whiskers Reinforced TiB2 Matrix Composites for Application in Aluminum Reduction Cells
In Situ Synthesis Aluminum Borate Whiskers Reinforced TiB2 Matrix Composites for Application in Aluminum Reduction Cells
复制标题
DOI：
10.1007/s11837-013-0710-4
复制
发表时间：
2013-08
期刊：
影响因子：
2.6
通讯作者：
Gang Zhang;Jian-hong Yang
中科院分区：
文献类型：
--
作者：
Gang Zhang;Jian-hong Yang
采用常压烧结方法制备了硼酸铝晶须(Al18B4O33w)增强TiB2基陶瓷。研究了TiB2基陶瓷的力学性能和致密化行为。结果表明，Al18B4O33w是由勃姆石(AlOOH)与TiB2粉末在烧结过程中反应原位合成的。提高烧结温度有利于TiB2基陶瓷的致密化。 Al18B4O33w可以提高抗弯强度和维氏硬度。结果表明，1600℃烧结的样品维氏硬度最大值为1.81 GPa，弯曲强度最大值为82 MPa。
The TiB2matrix ceramics reinforced by aluminum borate whiskers (Al18B4O33w) had been prepared by the pressureless sintering method. The mechanical properties and densification behavior of the TiB2matrix ceramics were investigated. The results showed that Al18B4O33wwas in situ synthesized by the reaction of boehmite (AlOOH) and TiB2powders during the sintering process. Increasing the sintering temperature had benefited for densification of the TiB2matrix ceramics. Al18B4O33wcould increase the flexural strength and Vicker’s hardness. It is obtained that the maximum value Vicker’s hardness with 1.81 GPa and flexural strength with 82 MPa for samples sintered at 1600°C.