<8> M ASTERBOND CASE STUDY Supreme 10HT: Utilized in structural bonding for supersonic aircraft, electronics packaging and capacitor tanks Master Bond Inc. 154 Hobart Street, Hackensack, NJ 07601 USA Phone +1.201.343.8983 | Fax +1.201.343.2132 | [email protected]

CASE STUDY Supreme 10HT: Utilized in structural bonding for supersonic aircraft, electronics packaging and capacitor tanks Because of its outstanding strength and other physical properties, Master Bond Supreme 10HT has been selected for use in several published research studies. Following are summaries of how Supreme 10HT performed in demanding applications. Control electronics packaging Application Electronic control components, which perform logical and signal conditioning functions, are complex devices characterized by large die areas and a large number of small contact pads. Control modules...

Temperature cycling tests An additional five samples were subjected to repeated temperature cycling between 20°C and 180°C. Shear tests were performed on one die from each sample after both 10 and 100 cycles. The Supreme 10HT samples showed no measurable degradation in bond strength after either 10 or 100 cycles, even under a maximum strain of 200μm. Capacitor Tanks Application Capacitor tanks are commonly used in electrical power distribution systems to help maintain consistent line voltage levels. A capacitor tank consists of a metal casing that houses one or more capacitor windings and is...

Key Parameters and Requirements For a mixed-adhesive joint to succeed in this application, both the low-temperature adhesive and the high-temperature adhesive must exhibit the required strength within its intended application range and must not degrade at temperatures outside this range (refer to Figure 1). If an adhesive fails outside its intended application range, it will no longer be able to sustain any load within its application range. Figure 1: Mixed-adhesive joint concept. The goal of the research study was to measure the mechanical properties of select adhesives across the entire operating...

Figure 2: Supreme 10HT tensile and shear moduli. Figure 3: Supreme 10HT tensile and shear strength for steel adherends. Figure 4: Supreme 10HT ductility. Master Bond Inc. | Tel: +1 (201) 343-8983 | www.masterbond.com | [email protected]

In single-lap joint tests using hard steel adherends, Supreme 10HT performed well up to 100°C, as Figure 5 illustrates. Results also showed that the high-temperature bismaleimide adhesive was stiff and strong from -55°C to 200°C, brittle for temperatures below 100°C, but more ductile at 200°C. The researchers concluded that Supreme 10HT should be capable of supporting the load through at least 100°C, above which the high-temperature adhesive can bear the load safely, and proposed a future study in which mixed-joint adhesives are designed and tested. Figure 5: Lap shear strength of Supreme 10HT...

Figure 7: Failure load for titanium/composite double-lap joints. Conclusion In several research studies, Master Bond Supreme 10HT has been shown to be exceptionally strong, durable, and tough over a wide range of temperatures and after repeated thermal cycling. Supreme 10HT performed well in a variety of applications with both similar and dissimilar substrates and was compatible with a commercially available dielectric fluid. The combination of outstanding performance and convenient handling makes Supreme 10HT an excellent choice for applications in the aerospace, automotive, electronics, military/defense,...