高性能热机械分析仪在先进陶瓷及粉末冶金烧结研究领域的应用

The Aplication of TMA in Advanced Ceramics and Powder Metallurgy Sintering

热分析法，已成为当今先进材料研究领域不可或缺的表征手段之一。在确定材料相图，评估热稳定性等方面均发挥着无可替代的重要作用。在粉末冶金及先进陶瓷领域，对材料的烧结过程的控制及相应的热膨胀信息的掌握一直是获得高性能产品的关键。而现阶段在相应领域广泛使用的常规热分析仪，尤其是热膨胀仪，基于仪器设计方面的局限，并不能完全胜任此项工作。本文结合应用实例，介绍了高性能热机械分析仪的工作原理及结构特点，阐述了其在先进陶瓷及粉末冶金领域的研究方法及独有优势。

Thermal analysis has been one of the indispensable means of characterization in advanced materials research nowadays. It plays an irreplaceable role in determining the material phase, controlling the sintering process and getting the corresponding thermal expansion information. Conventional thermal analyzer, especially the thermal expansion instrument, is widely used in many fields, but it cannot fully do the job based on the limitations of the instruments＇ design. In this paper, using application examples describes the principle and structure characteristics of high--performance thermal mechanical analyzer （TMA）, and describes the unique advantage in advanced ceramics and powder metallurgy fields.