由 SnO-ZnO-P2O5-SiO2 磷酸盐玻璃钎焊的 SrTiO3 陶瓷接头的微观结构演变和力学性能

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

Ceramics International Pub Date : 2024-10-01 DOI:10.1016/j.ceramint.2024.09.410

Ding Hao , Wei Guo , pengkun Liu , Jiafen Song , Jingru Xin

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引用次数: 0

摘要

该研究揭示了氧化钴酸锂陶瓷和磷酸盐玻璃（成分为 49SnO-19ZnO-32P2O5-3SiO2）之间钎焊接头的微观结构和机械性能。主要目的是研究磷酸盐玻璃在 SrTiO3 陶瓷上的润湿性以及在不同保持时间内接头强度的变化。主要研究结果表明，磷酸盐玻璃在 SrTiO3 陶瓷上表现出良好的润湿性。在接合微观结构中形成了 Zn2P2O7 和 SnP2O7 相，并且这两种相的数量随着保温时间的延长而逐渐增加。在 560 °C 下钎焊 10 分钟后，峰值剪切强度达到 40.3 MPa，这突出表明了该材料的机械性能。此外，Zn2P2O7 和 SnP2O7 相的硬度、弹性模量和塑性介于 SrTiO3 基体和玻璃之间。这两种相的形成大大提高了接头的机械性能。

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Microstructure evolution and mechanical properties of SrTiO3 ceramic joint brazed by SnO–ZnO–P2O5–SiO2 phosphate glass

The study uncovers the microstructure and mechanical properties of brazed joints between SrTiO₃ ceramics and a phosphate glass with the composition 49SnO-19ZnO-32P₂O₅-3SiO₂. The primary objective is to investigate the wettability of the phosphate glass on SrTiO₃ ceramics and the evolution of joint strength over varying holding times. Key findings reveal that the phosphate glass exhibits favorable wettability on SrTiO₃ ceramics. The formation of Zn₂P₂O₇ and SnP₂O₇ phases in the joint microstructure and the amount of these two phases gradually increases with the holding time. The mechanical performance is highlighted by the achievement of a peak shear strength of 40.3 MPa after brazing at 560 °C for 10 min. Additionally, the hardness, elastic modulus, and plasticity of the Zn₂P₂O₇ and SnP₂O₇ phases were found to be intermediate between those of the SrTiO₃ matrix and the glass. The formation of these two phases significantly enhances the mechanical properties of the joint.

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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.