Improvement of mechanical strength of piezoelectric ceramics embedded in aluminum matrix

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2025-03-27 DOI:10.1111/jace.20514

Tetsuro Yanaseko, Hiroshi Sato, Fumio Narita, Hiroshi Asanuma

引用次数: 0

Abstract

Piezoelectric ceramics were integrated into an aluminum matrix to enhance their strength. The strength, obtained via a three-point bending test conducted both pre- and postembedding the piezoelectric ceramics, was analyzed using a Weibull distribution. The analysis aimed to provide a quantitative assessment of the strength augmentation. The Weibull modulus increased from 4.30 to 5.96, while the scale parameter rose from 125.1 to 167.8 MPa. Notably, a distinct inflection point emerged in the Weibull plot of the composite piezoelectric ceramics, indicating a shift in the fracture mode. This transition in fracture mode is attributed to matrix yielding, a conjecture supported by the Weibull modulus aligning with the Weibull modulus of strength at the yield. The microstructures of the composites emerged as pivotal factors that influenced the fracture mode transition. Microstructural defects at the interface contributed to reducing the interfacial strength, which induced differences in fracture modes.

查看原文本刊更多论文

铝基中压电陶瓷机械强度的提高

压电陶瓷被集成到铝基体中以提高其强度。通过对压电陶瓷埋前和埋后进行三点弯曲试验获得的强度，采用威布尔分布进行了分析。分析的目的是提供强度增强的定量评估。威布尔模量从4.30增加到5.96，尺度参数从125.1增加到167.8 MPa。值得注意的是，复合压电陶瓷的Weibull图中出现了一个明显的拐点，表明断裂模式发生了转变。断裂模式的这种转变归因于基体屈服，这一猜想得到了威布尔模量与屈服时强度的威布尔模量一致的支持。复合材料的显微组织是影响断裂模式转变的关键因素。界面处的微观组织缺陷导致界面强度降低，从而导致断裂模式的差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.