In this study, a dense Al₂O₃–Y₃Al₅O₁₂ (YAG) ceramic was synthesized by flash sintering a powder mixture of Al₂O₃ and Y₂O₃ in less than 150 seconds at a furnace temperature of 1350°C. The resultant ceramic has a well‐defined eutectic structure consisting of alternating Al₂O₃ and YAG layers. The hardness and fracture toughness of the ceramic were measured to be 18.5 GPa and 4.3 MPa.m^1/2, respectively. These values are comparable to those of similar eutectic ceramics made by directional solidification techniques. The results suggest a new method for making high‐performance eutectic ceramics, which could be applied in other systems.

中文翻译：

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通过快速烧结超快形成Al2O3-Y3Al5O12共晶陶瓷

在这项研究中，通过在1350的炉温下不到150秒的时间内对Al ₂ O ₃和Y ₂ O ₃的粉末混合物进行快速烧结，合成了致密的Al ₂ O ₃ -Y ₃ Al ₅ O ₁₂（YAG）陶瓷。 ℃。所得的陶瓷具有明确的共晶结构，由交替的Al ₂ O ₃和YAG层组成。测得陶瓷的硬度和断裂韧性为18.5 GPa和4.3 MPa.m ^1/2， 分别。这些值可与通过定向凝固技术制成的类似共晶陶瓷的值相比。结果提示了一种用于制造高性能共晶陶瓷的新方法，该方法可用于其他系统。