TiB2粒径对BN-TiB2复相陶瓷致密化和性能的影响
Journal of the Chinese Ceramic Society（2011）
Abstract
以平均粒径分别为8.1μm和12.2μm的两种TiB2粉末为原料,通过热压烧结方法制备BN–48%（质量分数）TiB2复相陶瓷,研究了TiB2粉末粒径对复相陶瓷致密化和性能的影响。结果表明：平均粒径小的TiB2粉末所制备的复相陶瓷致密化速率更快,致密度更高;在1 850℃烧结1.5 h后,表观相对密度为95.3%,体积相对密度为83.9%,抗弯强度为85.3 MPa,弹性模量为47.2 GPa,电阻率为1.4 m？.cm,673 K时的热导率为33.7 W/（m.K）,298～1 373 K的平均热膨胀系数为7.2×10–6/K,均优于相同工艺条件下平均粒径大的TiB2粉末所制备的复相陶瓷的性能
MoreTranslated text
Key words
boron nitride–titanium diboride,composite ceramics,densification,hot-pressing sintering,average particle size
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined