High pressure behavior of titanium–silicon carbide (Ti3SiC2)
High pressure behavior of titanium–silicon carbide (Ti3SiC2)
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DOI：
10.1063/1.1573345
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发表时间：
2003-05
影响因子：
3.2
通讯作者：
J. Jordan;T. Sekine;Takamichi Kobayashi;Xijun Li;N. Thadhani;T. El-Raghy;M. Barsoum
中科院分区：
文献类型：
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作者：
J. Jordan;T. Sekine;Takamichi Kobayashi;Xijun Li;N. Thadhani;T. El-Raghy;M. Barsoum
本文研究了钛-碳化硅（Ti 3SiC 2）陶瓷的动态高压行为和相稳定性。采用两级轻气枪在50-120 GPa的压力范围内对Ti 3SiC 2样品进行了Hugoniot状态方程的时间分辨测量。在约90-120 GPa的压力下，发现Ti 3SiC 2转变为更压缩的状态。冲击恢复实验也在Ti 3SiC 2粉末上进行，冲击速度为1.5-2 km/s，使用单个胶囊几何形状，添加和不添加铜粉以改变样品中的冲击加载压力（计算为22-58 GPa）和温度（计算为高达3250 °C）。在对Ti 3SiC 2粉末进行的这些恢复实验中没有观察到冲击诱导分解的证据。
The dynamic high-pressure behavior and phase stability of titanium–silicon carbide (Ti3SiC2), a unique ceramic having metal-like properties, was investigated in this study. Time-resolved measurements of the Hugoniot equation of state, employing a plate impact geometry, were conducted on the Ti3SiC2 samples in the pressure range of 50–120 GPa using a two stage light gas gun. At pressures around 90–120 GPa, Ti3SiC2 was found to transform to a more compressed state. Shock-recovery experiments were also performed on Ti3SiC2 powders at impact velocities of 1.5–2 km/s using a single capsule geometry, with and without the addition of copper powder to vary the shock-loading pressure (calculated to be 22–58 GPa) and temperature (calculated to be up to 3250 °C) in the sample. No evidence of shock-induced decomposition was observed in these recovery experiments performed on the Ti3SiC2 powders.