Abstract

The resistivity of hafnium carbide in the temperature range of 2000–5000 K has been measured via current-pulse heating (for several microseconds). Data on the liquid phase have been obtained for the first time. The resistivity was calculated for sample sizes at room temperature (thermal expansion was neglected). A comparative investigation of the resistivities (measured with the same method) of the refractory carbides ZrC, HfC, and TaC + HfC has been performed in a wide temperature range (2000–5000 K). The dependences of the resistivity on temperature and heating energy for the samples obtained via spark plasma sintering and magnetron sputtering are compared.

中文翻译：

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固态和液态耐火硬质合金（ZrC，HfC和TaC + HfC）的电阻率

摘要

通过电流脉冲加热（持续几微秒）测量了2000-5000 K温度范围内碳化ha的电阻率。液相数据是首次获得。计算室温下样品尺寸的电阻率（忽略热膨胀）。在宽温度范围（2000-5000 K）内，对耐火碳化物ZrC，HfC和TaC + HfC的电阻率（用相同方法测量）进行了比较研究。比较了通过火花等离子体烧结和磁控溅射获得的样品的电阻率对温度和热能的依赖性。