摘要
A water-quenching technique was adopted to evaluate the thermal shock behavior of hot-pressed ZrB2-SiC and ZrB2-SiC-graphite composites in an air atmosphere. The strength retention of the two kinds of composites was measured after varying temperature (ΔTc) up to 1000 °C. Monolithic ZrB2-SiC showed rapidly drop in flexural strength above ΔT of 400 °C, however the critical thermal shock temperature difference (ΔTc) is enhanced by adding graphite, and the ZrB2-SiC-graphite composite showed a higher retained strengths up to 1000 °C. The main reasons for a great improvement of thermal shock resistance (TSR) were also discussed and analyzed.
源语言 | 英语 |
---|---|
页(从-至) | 338-341 |
页数 | 4 |
期刊 | Materials Chemistry and Physics |
卷 | 113 |
期 | 1 |
DOI | |
出版状态 | 已出版 - 15 1月 2009 |
已对外发布 | 是 |