Metal matrix composites with near-zero thermal expansion (NZTE) have gained significant popularity in high-precision industries due to their excellent thermal stability and mechanical properties. The incorporation of Mn3Zn0.8Sn0.2N, which possesses outstanding negative thermal expansion properties, effectively suppressed the thermal expansion of titanium. Highly dense Mn3Zn0.8Sn0.2N/Ti composites were obtained by adjusting the fabrication temperature. Both composites fabricated at 650 °C and 700 °C exhibited NZTE. Furthermore, finite element analysis was employed to investigate the effects of thermal stress within the composites on their thermal expansion performance.
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机译：具有近零热膨胀 （NZTE） 的金属基复合材料因其优异的热稳定性和机械性能而在高精度工业中广受欢迎。具有突出负热膨胀性能的 Mn3Zn0.8Sn0.2N 的掺入有效抑制了钛的热膨胀。通过调节制造温度，获得了高密度的 Mn3Zn0.8Sn0.2N/Ti 复合材料。在 650 °C 和 700 °C 下制造的两种复合材料都表现出 NZTE。此外，采用有限元分析来研究复合材料内部的热应力对其热膨胀性能的影响。
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