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ABO3钙钛型电子陶瓷材料的研究进展 总被引:3,自引:0,他引:3
概述了ABO3钙钛型电子陶瓷材料的一些成果及具有该结构主晶相的功能材料在PTC元件,铁电、压电、微波陶瓷元件等领域的应用与前景。 相似文献
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BaTiO3陶瓷以其优异的铁电、压电和绝缘性能广泛应用于体积小、容量大的电子器件材料,但其在一定的工作温度区间介电常数却呈现不稳定变化。对其常用的改性方法进行了分类和阐述,同时对Nb2O5掺杂改性对BaTiO3陶瓷介电性能的影响作了简单介绍,最后讨论了Nb2O5在多层陶瓷电容器制备领域的应用和重要性。 相似文献
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介绍铁电、压电等功能陶瓷及其片式元件应用研究的若干新进展.基于过渡液相烧结机制的高性能压电陶瓷材料具有低烧结温度、高压电常数和低介质损耗等诸多优点.低烧多层压电变压器(MPT)以其低驱动电压、小体积、高升压比、薄型片式化等优点在液晶显示背光电源等方面获得应用.多层压电变压器及其背光电源具有高功率密度、高转换效率、薄型化和低成本等特点.基于缺陷化学原理和无晶粒长大的致密化烧结动力学,制备了亚微米/纳米晶钛酸钡基陶瓷及其薄层化贱金属内电极MLCC.研制了低烧铁氧体材料及其片式电感器.介绍了压电陶瓷超声微马达的结构与特性. 相似文献
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论述压电陶瓷在高精度领域的不同应用,包括压电陶瓷对物体微小形变测量、压电陶瓷作为传感元件与谐振器结合应用、压电传感技术在应力测量领域应用、压电陶瓷作为驱动器在纳米定位领域应用、压电陶瓷对材料构件损伤识别、压电陶瓷在无损检测领域应用、基于相移干涉法对三维表面微观轮廓检测等;描述压电材料分类以及特性;深度剖析压电陶瓷在当前科技发展阶段不同工业领域的应用,分析目前研究中的难点,展望未来的研发方向。 相似文献
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从功能陶瓷的开始,介绍了压电材料的演化过程,压电材料的分类、及其结构构成。举例说明了常见的压电材料,对压电材料的结构和性能作了初步的分析,指出了压电材料发展中存在的问题并展望了压电材料的发展方向。 相似文献
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Eugene Medvedovski 《International Journal of Applied Ceramic Technology》2023,20(2):612-659
The applications of advanced ceramics, composites and coatings in mineral, mining, fuel production, and processing are reviewed. The materials include oxide and non-oxide ceramics (specifically SiC-based), ceramic–ceramic, and ceramic–metal composites, coatings on metallic components where functional application properties can be achieved. Some principles of materials selection, specifically for erosion wear and corrosion applications, and manufacturing are considered. The examples of the successful development and processing of ceramics, coatings, and composites with manageable structures and phase compositions, in the erosion-related applications, particularly conducted by the author, are discussed and reviewed. Specifically, industrially employed types of ceramics and processing routes were focused on the considered applications. Particular demands for advanced materials with high reliability and complex shapes or for protective coatings on complex shape steel components and long tubing with inner surface protection require novel and optimized processing. The factors affecting erosion and erosion–corrosion resistance and the paths for the erosion resistance enhancement of ceramic and coating materials are considered. Ceramic components design, technology, and installation features are reviewed. 相似文献
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建筑卫生陶瓷技术展望 总被引:3,自引:1,他引:2
本文分析了我国建筑卫生陶瓷工业的技术现状,对低品质原料的开发利用、原料加工技术、成型技术、干燥与烧成技术、装饰技术、计算机技术的应用、产品功能复合化、新技术应用等方面的发展趋势进行了探讨,提出了一些作者认为比较有前途的发展方向。 相似文献
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陶瓷基复相材料的非相变增韧机制 总被引:3,自引:0,他引:3
本文讨论了脆性陶瓷基复相材料不同于其它韧性基体复合材料的特点,较为系统的论述了颗粒弥散复相陶瓷材料的主要非相变增韧机制,为高韧性新型复相陶瓷材料研究开发提供理论参考。 相似文献
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High-entropy ceramics have been widely explored and extensively studied since the first demonstration of the configuration entropy stabilized reversible transitions between multiple and single phases by Rost et al. in 2015. Most of the current research on high-entropy ceramics has focused on properties like thermal conductivity, thermoelectricity, structures, and others. Some recent studies have extended the high-entropy concept to the field of transparent ceramics. We reviewed these papers and proposed four potential ceramics groups for high-entropy transparent ceramics including fluoride ceramics, fluorite-deficient and/or ordered pyrochlore A2B2O7 ceramics, garnet ceramics, and sesquioxide ceramics. In this article, we review ceramic powder synthesis, the fabrication of transparent ceramics, high-entropy ceramics, and limited cases of high-entropy transparent ceramics for each category. High-entropy transparent ceramics with diverse compositions and structures will provide more possibilities for functional transparent ceramics in the future. 相似文献
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稀土元素在陶瓷材料中的应用 总被引:4,自引:0,他引:4
针对我国稀土资源得天独厚的现状,从稀土元素的原子结构和化学特性出发,较详细地阐述了稀土元素在Al2O3、Si3N4、ZrO2等结构陶瓷以及介电、压电、导电陶瓷等功能陶瓷和陶瓷色釉料中的应用以及作用机理。 相似文献