Microstructure and Mechanical Properties of (TiB 2 + SiC) Reinforced Ti 3 SiC 2 Composites Synthesized by In Situ Hot Pressing
Source abstract
Abstract
Fully dense (TiB 2 + SiC) reinforced Ti 3 SiC 2 composites with 15 vol% TiB 2 and 0–15 vol% SiC were designed and synthesized by in situ reaction hot pressing. The increase in SiC content promoted densification and significantly inhibited the growth of Ti 3 SiC 2 grains. The in situ incorporated TiB 2 and SiC reinforcements showed columnar and equiaxed grains, respectively, providing a strengthening–toughening effect by the synergistic action of particulate reinforcement, grain's pulling out, “self‐reinforcement,” crack deflection, and grain refining. A maximum bending strength of 881 MP a and a fracture toughness of 9.24 MP am 1/2 were obtained at 10 vol% SiC. The Vickers hardness of the composites increased monotonously from 9.6 to 12.5 GP a.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: MXene and MAX Phase Materials · Aluminum Alloys Composites Properties · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Materials Science and Engineering Nanjing Tech University Nanjing 210009 China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province
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