Metamaterials with multiple anisotropic properties have strong potential in medicine, military, and civil engineering applications. However, previous studies have been limited to the design and fabrication of polymers, metals, and alloys, which can allow the retention of the structure at low temperatures. Metamaterials that operate at high temperatures or over large temperature ranges need to be developed. In this study, 3D-architected ceramic metamaterials with programmable thermal expansion, which can be used in high-temperature or large-temperature-range environments, were designed, fabricated, and characterized. First, three multi-ceramic quadrangular-pyramid-structured metamaterials with programmable thermal expansion behaviors were proposed and designed based on ZrO₂ and Al₂O₃ ceramics. The design mechanism and programmable range of thermal expansion were analyzed. Then, 3D-architected ceramic metamaterials with negative (−10 × 10⁻⁶/°C), zero (0 × 10⁻⁶/°C), and positive (+10 × 10⁻⁶/°C) thermal expansion were designed and fabricated through stereolithography additive manufacturing. The manufactured 3D-architected multi-ceramic metamaterials with programmable thermal expansion behaviors were analyzed using a digital image correlation (DIC) method. The results showed that the experimentally measured values were in good agreement with the theoretical values. The obtained findings pave the way for the application of 3D-architected multi-ceramic metamaterials.

具有多种各向异性特性的超材料在医学、军事和土木工程应用中具有强大的潜力。然而，之前的研究仅限于聚合物、金属和合金的设计和制造，这可以在低温下保持结构。需要开发在高温或大温度范围内工作的超材料。在这项研究中，设计、制造和表征了具有可编程热膨胀的 3D 架构陶瓷超材料，可用于高温或大温度范围环境。首先，基于ZrO ₂和Al ₂ O提出并设计了三种具有可编程热膨胀行为的多陶瓷四棱锥结构超材料₃陶瓷。分析了热膨胀的设计机理和可编程范围。然后，设计了具有负 (-10 ×  10 ^-6 /°C)、零 (0 ×  10 ^-6 /°C) 和正 (+10 ×  10 ^-6 /°C) 热膨胀系数的3D 结构陶瓷超材料并通过立体光刻增材制造制造。使用数字图像相关 (DIC) 方法分析制造的具有可编程热膨胀行为的 3D 架构多陶瓷超材料。结果表明，实验测量值与理论值吻合良好。所获得的研究结果为 3D 架构的多陶瓷超材料的应用铺平了道路。