TiSiC相的合成及MAX/SiC复合材料的固结——微观结构与力学性能

Synthesis of TiSiC Phases and Consolidation of MAX/SiC Composites-Microstructure and Mechanical Properties.

作者信息

Wozniak Jaroslaw, Petrus Mateusz, Cygan Tomasz, Adamczyk-Cieślak Boguslawa, Moszczyńska Dorota, Olszyna Andrzej Roman

机构信息

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

出版信息

Materials (Basel). 2023 Jan 17;16(3):889. doi: 10.3390/ma16030889.

DOI:10.3390/ma16030889

PMID:36769901

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9917825/

Abstract

The article describes the TiSiC powder synthesis process. The influence of the molar ratio and two forms of carbon on the phase composition of the obtained powders was investigated. The synthesis was carried out using a spark plasma sintering (SPS) furnace. In addition, using the obtained powders, composites reinforced with SiC particles were produced. The obtained results showed no effect of the carbon form and a significant impact of annealing on the purity of the powders after synthesis. The composites were also consolidated using an SPS furnace at two temperatures of 1300 and 1400 °C. The tests showed low density and hardness for sinters from 1300 °C (maximum 3.97 g/cm and 447 HV5, respectively, for composite reinforced with 10% SiC). These parameters significantly increase for composites sintered at 1400 °C (maximum density 4.43 g/cm and hardness 1153 HV5, for TiAlC-10% SiC). In addition, the crack propagation analysis showed mechanisms typical for granular materials and laminates.

摘要

本文描述了TiSiC粉末的合成过程。研究了摩尔比和两种碳形态对所得粉末相组成的影响。合成过程采用放电等离子烧结（SPS）炉进行。此外，利用所得粉末制备了SiC颗粒增强复合材料。所得结果表明，碳形态对合成后粉末的纯度没有影响，而退火对其有显著影响。复合材料也在1300和1400℃两个温度下使用SPS炉进行固结。测试表明，1300℃烧结的复合材料密度和硬度较低（对于10%SiC增强复合材料，最大密度分别为3.97 g/cm³和硬度为447 HV5）。对于在1400℃烧结的复合材料（TiAlC-10%SiC，最大密度4.43 g/cm³和硬度1153 HV5），这些参数显著增加。此外，裂纹扩展分析显示了颗粒材料和层压板的典型机制。