通过放电等离子烧结由自蔓延高温合成粉末制备的AlMgB-TiB复合材料的结构与性能

On the Structure and Properties of AlMgB-TiB Composites Obtained from SHS Powders by Spark Plasma Sintering.

作者信息

Nikitin Pavel, Zhukov Ilya, Matveev Aleksey, Sokolov Sergei, Grigoriev Mikhail, Vorozhtsov Alexander

机构信息

Laboratory of Metallurgy Nanotechnologies, National Research Tomsk State University, Lenin Avenue, 36, 634050 Tomsk, Russia.

出版信息

Materials (Basel). 2021 Sep 24;14(19):5521. doi: 10.3390/ma14195521.

DOI:10.3390/ma14195521

PMID:34639916

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8509751/

Abstract

AlMgB-TiB composite materials were fabricated by self-propagating high-temperature synthesis (SHS) followed by spark plasma sintering of the obtained SHS products. It was found that, during the SHS, the AlMgB phase is formed at a donor (Ti + 2B) to acceptor (AlMg-B) mass ratio of 3:7 and 4:6, respectively. The specimen sintered from the SHS powder with the donor:acceptor mass ratio of 5:5 at a temperature of 1470 °C has a uniform skeletal structure. The average hardness of the obtained specimen is 30.1 GPa.

摘要

通过自蔓延高温合成（SHS）制备AlMgB-TiB复合材料，然后对所得SHS产物进行放电等离子烧结。结果发现，在SHS过程中，AlMgB相分别在供体（Ti + 2B）与受体（AlMg-B）质量比为3:7和4:6时形成。由供体:受体质量比为5:5的SHS粉末在1470℃烧结而成的试样具有均匀的骨架结构。所得试样的平均硬度为30.1 GPa。