烧结策略优化制备高抗热震性Mg2Al4Si5O18-Al2O3红外辐射陶瓷

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-09-01 DOI:10.1016/j.ceramint.2025.06.264

Yunping Li , Zichen Mu , Zhichuang Jia , Kongjun Zhu , Xiaobo Zhou , Luming Wang , Guoqing Gu , Jianzhou Du

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引用次数: 0

摘要

采用滑移铸造法和常规固相烧结法制备了Mg2Al4Si5O18-Al2O3红外辐射复合陶瓷。系统地研究了烧结工艺对相结构和微观形貌的影响。XRD和FT-LR分析表明，堇青石在1050℃时结晶度最佳，相含量为64 wt%。样品密度为1.878 g/cm3，表观孔隙率为22%。采用有限元模拟和由稳压器、计算机和红外测温仪组成的测试系统相结合的方法对样品的抗热震性进行了评估。结果表明：在220v输入下，表面温度最高可达860.48℃，平均为618.85℃；值得注意的是，在1050°C下烧结150分钟的样品表现出优异的抗热震性，在反复加热和风冷循环后表现出最小的开裂。对红外陶瓷加热器的热响应行为进行了评价。

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High thermal shock resistance of Mg2Al4Si5O18-Al2O3 infrared radiation ceramics via sintering strategy optimization

Infrared radiation composite ceramics of Mg₂Al₄Si₅O₁₈-Al₂O₃ were prepared by the slip casting process and conventional solid-state sintering method. The influence of the sintering process on phase structure and microscopic morphology was systematically investigated. XRD and FT-LR analyses revealed that optimal cordierite crystallinity was achieved at 1050 °C, with a phase content of 64 wt%. The sample density was 1.878 g/cm³, and the apparent porosity was 22 %. A combination of finite element simulations and a test system comprising a voltage regulator, computer and infrared thermometer was employed to assess the thermal shock resistance of the samples. The results indicated that under 220 V input, the maximum surface temperature reached 860.48 °C, with an average of 618.85 °C. Notably, samples sintered at 1050 °C for 150 min demonstrated superior thermal shock resistance, exhibiting minimal cracking after repeated cycles of heating and air-cooling. The thermal response behavior of the infrared ceramic heater was also evaluated.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.