放电等离子烧结法退火过程中MXenes氧化过程的研究

Investigation of MXenes Oxidation Process during SPS Method Annealing.

作者信息

Wozniak Jaroslaw, Petrus Mateusz, Cygan Tomasz, Lachowski Artur, Kostecki Marek, Jastrzębska Agnieszka, Wojciechowska Anita, Wojciechowski Tomasz, Olszyna Andrzej

机构信息

Faculty of Material Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland.

Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.

出版信息

Materials (Basel). 2021 Oct 12;14(20):6011. doi: 10.3390/ma14206011.

DOI:10.3390/ma14206011

PMID:34683603

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8537654/

Abstract

This paper discusses the effects of the environment and temperature of the TiC (MXene) oxidation process. The MXene powders were annealed at temperatures of 1000, 1200, 1400, 1600, and 1800 °C in argon and vacuum using a Spark Plasma Sintering (SPS) furnace. The purpose of the applied annealing method was to determine the influence of a high heating rate on the MXene degradation scheme. Additionally, to determine the thermal stability of MXene during the sintering of SiC matrix composites, SiC-C-B-TiC powder mixtures were also annealed. The process parameters were as follows: Temperatures of 1400 and 1600 °C, and pressure of 30 MPa in a vacuum. Observations of the microstructure showed that, due to annealing of the SiC-C-B-TiC powder mixtures, porous particles are formed consisting of TiC, TiC, and amorphous carbon. The formation of porous particles is a transitional stage in the formation of disordered carbon structures.

摘要

本文讨论了TiC（MXene）氧化过程中的环境和温度影响。使用放电等离子烧结（SPS）炉，将MXene粉末在氩气和真空中于1000、1200、1400、1600和1800℃的温度下进行退火。采用这种退火方法的目的是确定高加热速率对MXene降解方案的影响。此外，为了确定MXene在SiC基复合材料烧结过程中的热稳定性，还对SiC-C-B-TiC粉末混合物进行了退火。工艺参数如下：温度为1400和1600℃，真空压力为30MPa。微观结构观察表明，由于SiC-C-B-TiC粉末混合物的退火，形成了由TiC、TiC和无定形碳组成的多孔颗粒。多孔颗粒的形成是无序碳结构形成过程中的一个过渡阶段。