Development of a reaction bonding method for bonding silicon carbide using ceramic suspensions

IF 2.3 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

International Journal of Applied Ceramic Technology Pub Date : 2025-06-15 DOI:10.1111/ijac.70003

Rodrigo Orta-Guerra, Olivia Brandt, Averyonna Kimery, Edwin S. Romero, Jeffrey P. Youngblood, Rodney W. Trice

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Abstract

Bonding ceramic-based components is desired to create more complex assemblies. In this work, a method for bonding sintered SiC components via reaction bonding based on SiC/carbon black (CB) ceramic suspensions was developed. Four-point flexural testing was used to evaluate the strength of the bond. The effect of bond thickness and temperature on strength was evaluated. The SiC/CB 37 vol% suspension, with a polyethyleneimine content of 1.7 wt% and a pH between 5 and 7, displayed suitable rheology for slurry casting on SiC. At room temperature, a bond thickness of 100 ± 6 µm displayed the highest flexural strength (242 ± 35 MPa). Ten specimens with a 60 ± 4 µm bond thickness were tested at room temperature and 1200°C, with strengths of 229 ± 50 MPa and 278 ± 45 MPa measured, respectively. The presence of SiC in the bond area was verified and quantified with X-ray diffraction, energy-dispersive X-ray spectroscopy, and image analysis.

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用陶瓷悬浮液键合碳化硅的反应键合方法的发展

结合陶瓷为基础的组件需要创建更复杂的组件。本文提出了一种基于碳化硅/炭黑（CB）陶瓷悬浮液的反应键合烧结碳化硅构件的方法。四点弯曲试验用于评估粘结强度。评价了粘结层厚度和温度对强度的影响。SiC/CB悬浮液体积百分比为37，聚乙烯亚胺含量为1.7 wt%， pH值在5到7之间，表现出合适的SiC浆液铸造流变性。室温下，粘结层厚度为100±6µm时，抗折强度最高（242±35 MPa）。在室温和1200℃下测试了10个粘结厚度为60±4µm的试件，强度分别为229±50 MPa和278±45 MPa。通过x射线衍射、能量色散x射线光谱和图像分析验证并量化了键区中SiC的存在。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Applied Ceramic Technology 工程技术-材料科学：硅酸盐

CiteScore

3.90

自引率

9.50%

发文量

280

审稿时长

4.5 months

期刊介绍： The International Journal of Applied Ceramic Technology publishes cutting edge applied research and development work focused on commercialization of engineered ceramics, products and processes. The publication also explores the barriers to commercialization, design and testing, environmental health issues, international standardization activities, databases, and cost models. Designed to get high quality information to end-users quickly, the peer process is led by an editorial board of experts from industry, government, and universities. Each issue focuses on a high-interest, high-impact topic plus includes a range of papers detailing applications of ceramics. Papers on all aspects of applied ceramics are welcome including those in the following areas: Nanotechnology applications; Ceramic Armor; Ceramic and Technology for Energy Applications (e.g., Fuel Cells, Batteries, Solar, Thermoelectric, and HT Superconductors); Ceramic Matrix Composites; Functional Materials; Thermal and Environmental Barrier Coatings; Bioceramic Applications; Green Manufacturing; Ceramic Processing; Glass Technology; Fiber optics; Ceramics in Environmental Applications; Ceramics in Electronic, Photonic and Magnetic Applications;