The effect of boron nitride nanosheets on the mechanical and thermal properties of aluminum nitride ceramics |
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| Authors: | Xiangning Yang Jianqiang Bi Guandong Liang Yonghan Li Linjie Meng Chengge Wu Xiangyu Zhang |
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| Affiliation: | 1. Key Laboratory for liquid-solid Structural Evolution & Processing of Materials of Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China;2. School of Construction Machinery, Shandong Jiaotong University, Jinan, P. 3. R. 4. China |
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| Abstract: | The boron nitride nanosheets (BNNSs)/aluminum nitride (AlN) composites were prepared by hot press sintering at 1600°C. The microstructure, mechanical properties, and thermal conductivity of the samples were measured, and the effect of adding BNNSs to AlN ceramics on the properties was studied. It is found that the addition of BNNSs can effectively improve the mechanical properties of AlN. When the additional amount is 1 wt%, the bending strength of the sample reaches the maximum value of 456.6 MPa, which is 23.1% higher than that of the AlN sample without BNNSs. The fracture toughness of the sample is 4.47 MPa m1/2, a 68.7% improvement over the sample without BNNSs. The composites obtained in the experiment have brilliant mechanical properties. |
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| Keywords: | aluminum nitride boron nitride nanosheets mechanical properties microstructure thermal properties |
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