Rodrigo Orta-Guerra, Olivia Brandt, Averyonna Kimery, Edwin S. Romero, Jeffrey P. Youngblood, Rodney W. Trice
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Development of a reaction bonding method for bonding silicon carbide using ceramic suspensions
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.
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;
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