Microwave Sintering, as a new aspect on the study of ZTA ceramics, improves the bending strength and the fracture toughness KIC of ZTA and the micro structure.

选用微波烧结新工艺，对ZTA陶瓷力学性能进行了研究，获得了较传统烧结工艺优良的陶瓷力学强度和断裂韧性。同时，新工艺改善了陶瓷体的显微结构。

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Plane strain fracture toughness (KIc). The critical value of the stress intensity factor (i. e., at which crack propagation occurs) for the condition of plane strain.

平面应变断裂韧性(KIc)：平面应变条件下应力强度因子的临界值(即达到该值时裂纹发生扩展)。

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The results show that the fracture toughness of Kic increased with lower loading rate and higher test temperature and the incision depth has no significant impact on the test results.

结果显示，断裂韧度随加载速率降低和试验温度提高而增大，而切口深度对结果的影响不显著。

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However, for the most part the KIC has continued to operate and expand despite the frequent flare-ups of tension on the peninsula.

BBC: Q&A: Kaesong Industrial Complex

This latest haul was detected around a star known as KIC 05807616.

BBC: Newly found planets are 'roasted remains'