A ceramic coating from polymer-derived SiCNO for high-temperature electrical insulation on Ni-based alloy substrates

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-03-01 DOI:10.1016/j.ceramint.2024.12.347

Zaifu Cui, Zhenguo Lu, Liwen Huang, Zitong Xu, Zhonghai Wang, Wenjin Duan, Huayu Che, Bohuai Gou, Qiyu Liang, Jiahong Huang, Xiaojun Chen

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引用次数: 0

Abstract

High-temperature thin-film sensors on nickel-based alloy high-temperature components are important for design validation and health monitoring of such high-temperature components, however, maintaining good electrical insulation at high temperatures remains a challenge for the stability and reliability of thin-film sensors. In this study, an insulating coating on nickel-based alloy substrate is proposed to solve the electrical insulation problem of thin-film sensors. A layer of precursor ceramic slurry is prepared on a nickel-based alloy substrate by direct-write printing method, and then a layer of pure precursor liquid is spin-coated on it after vacuum pyrolysis, and then a four-layered structural insulating coating is formed by the vacuum pyrolysis at last. The coatings were characterized by SEM, EDS, FTIR, XRD and XPS for surface morphology, elemental content, functional groups, and physical phase composition. The electrical resistance of the coatings was tested at high temperatures and their adhesion at room temperature was tested. Finally, the temperature and thermal shock resistance of the coatings were verified by preparing thin-film thermistors and heat flux sensors on the coating. A high-temperature resistant electrically insulating coating is provided for the preparation of thin-film sensors on high-temperature nickel-based alloys.

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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.