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microwave sintering of Al2O3-ZrO2 composite

Author: langfeng1 Time: 2017-10-18

Microwave processing is generally believed to be method of highly efficient production. The two different sintering process (microwave and conventional) for Al2O3-ZrO2 composite produce different phase transformation, microwave sintering promoted the formation of t-ZrO2 at 1300o C and 1400o C, while this phase forms in sample with conventional sintering at 1400°C. Microwave sintering results in higher densities, flexural and compressive strength compared to conventional sintering. The porosity of sintered Al2O3- ZrO2 composite increased with increasing of starting ZrSiO4 particle size. Furthermore by microwave sintering, the microstructure of composites show more dense and uniform grain growth.

Hunan WISE Microwave Technology Co., Ltd.

SEM micrograph of AZ1 sinterd at 1300°C in microwave furnace.

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