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Client Challenge A Korean semiconductor materials leader faced critical issues with their high-temperature kilns (1600°C+): Dimensional Instability: Traditional alumina roller rods deformed at elevated temperatures, causing substrate misalignment and yield loss. Corrosion Failures: Aggressive ...
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Background A chemical processing facility operating in an acidic environment was using components made from Reaction Bonded Silicon Carbide (RB-SiC) for pump seals and corrosion-resistant structural parts. The system was exposed to concentrated sulfuric acid (H₂SO₄) at elevated temperatures around ...
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Client Challenge: An Italian ceramics firm sought to improve the efficiency of their glaze grinding process while reducing wear on milling equipment. Traditional zirconia balls showed low fracture toughness in abrasive slurries, leading to frequent ball breakage and contamination risks. Kegu ...
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Problem In a roller kiln operating at high temperature,SiC rollers showed edge chipping at the roller ends after a period of operation. The damage was localized and repetitive, raising concerns about material failure. Initial Assumption The issue was initially attributed to: Insufficient material ...
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Why Porosity Can Improve Performance in High-Temperature SiC Applications Problem In material selection, a common belief is: Lower porosity = better performance This assumption leads many engineers to prefer: Dense ceramics High-strength materials However, in high-temperature systems, this is not ...
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Why Thermal Shock Is Often Misdiagnosed in SiC Component Failure? Problem In high-temperature applications, when SiC components fail, the most common conclusion is: “This is thermal shock failure." This assumption is widely accepted because: Temperature changes are obvious SiC is known to be ...
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When Recrystallized SiC (RSiC) Outperforms Dense SiC (SSiC) in High-Temperature Applications? Problem In silicon carbide material selection, a common belief is: SSiC is always better than RSiC Because: Higher density Higher strength Lower porosity However, in real high-temperature systems, this ...
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Why SiC Component Failure Often Begins During Shutdown Rather Than During Operation Problem In many high-temperature kiln systems, operators observe an unusual phenomenon: Components remain stable during productionBut cracks or failures appear after shutdown This raises an important engineering ...
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Understanding Thermal Stress in Spring-Supported SiC Rollers In high-temperature kiln systems, roller failure is often incorrectly attributed to: poor straightness, insufficient bending strength, or manufacturing defects. However, field observations show that even perfectly straight rollers can ...
Cases
