Microwave Sintering of Zirconia-Toughened Alumina Composites *
Microwave Sintering of Zirconia-Toughened Alumina Composites *
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微波烧结氧化锆增韧氧化铝复合材料*
DOI：
10.1557/proc-189-243
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
R. L. Beatty
中科院分区：
文献类型：
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作者：
H. Kimrey;J. Kiggans;M. Janney;R. L. Beatty
微波烧结技术具有独特的性能，有望成为控制先进陶瓷显微结构、改善其性能阿萨新技术。1-6由于微波辐射可穿透大多数陶瓷，因此可以实现均匀的体积加热。在传统烧结过程中由于传导和辐射热传递到部件和部件内而产生的热梯度可以最小化。通过消除温度梯度，可以减少内部应力，这有助于在烧结过程中开裂的部件，并创建一个更均匀的微观结构，这可能会导致改善的机械性能和可靠性。通过均匀的体积温度，可以调节由于温度梯度和相关的烧结梯度而产生的不均匀颗粒/晶粒生长。
Microwave sintering possesses unique attributes and has the potential to be developed asa new technique for controlling microstructure to improve the properties of advanced ceramics. 1–6 Because microwave radiation penetrates most ceramics, uniform volumetric heating is possible. Thermal gradients, which are produced during conventional sintering because of conductive and radiative heat transfer to and within the part, can be minimized. By eliminating temperature gradients, it is possible to reduce internal stresses, which contribute to cracking of parts during sintering, and to create a more uniform microstructure, which may lead to improved mechanical properties and reliability. With uniform, volumetric temperatures, the generation of nonuniform particle/grain growth due to temperature gradients and associated sintering gradients can be regulated.