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首页> 外文期刊>Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing >Effects of MCAS glass additives on dielectric properties of Al_2O_3-TiO_2 ceramics
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Effects of MCAS glass additives on dielectric properties of Al_2O_3-TiO_2 ceramics

机译：MCAS玻璃添加剂对Al_2O_3-TiO_2陶瓷介电性能的影响

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摘要

MgO-CaO-Al_2O_3-SiO_2 (MCAS) glass synthesized by sol-gel method was used to improve the sintering and dielectric properties of the 0.88Al_2O_3-0.12TiO_2 ceramics. Using MCAS glass as sintering additives, 0.88Al_2O_3-0.12TiO_2 ceramics can be sintered at a relatively low temperature, 1350 ℃. The effect of glass additives and post-annealing treatment on the phase compositions and dielectric properties of 0.88 Al_2O_3-0.12TiO_2 ceramics is investigated. The decomposition of Al_2TiO_5, which formed in the sintering process, depends on the MCAS content and time of annealing treatment. Further investigation indicates that the decomposition degree of Al_2TiO_5 has a strong influence on the microwave dielectric properties of 0.88Al_2O_3-0.12TiO_2 ceramics.
机译：采用溶胶-凝胶法合成了MgO-CaO-Al_2O_3-SiO_2玻璃，以提高0.88Al_2O_3-0.12TiO_2陶瓷的烧结性能和介电性能。使用MCAS玻璃作为烧结助剂，可以在相对较低的温度1350℃下烧结0.88Al_2O_3-0.12TiO_2陶瓷。研究了玻璃添加剂和后退火处理对0.88 Al_2O_3-0.12TiO_2陶瓷相组成和介电性能的影响。烧结过程中形成的Al_2TiO_5的分解取决于MCAS含量和退火时间。进一步的研究表明，Al_2TiO_5的分解程度对0.88Al_2O_3-3-0.12TiO_2陶瓷的微波介电性能有很大的影响。

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