Indium foil is a remarkable metal renowned for its exceptional ductility and malleability, making it a crucial component in various industries. Here’s why indium foil stands out:
Exceptional Ductility and Malleability: Indium foil’s unique properties allow it to deform and seamlessly fill tiny gaps between mating components, ensuring effective sealing with minimal pressure.
Consistent Performance in Harsh Conditions: Even at ultra-low temperatures, indium retains its ductility and malleability, enabling assemblies to maintain effective sealing in harsh environments.
Wide Application in Thermal Management: With a high thermal conductivity of 86W/mK at 85°C, indium is widely utilized in thermal management applications, efficiently dissipating heat generated by electronic components.
Compensation for Thermal Expansion: Indium can compensate for different coefficients of thermal expansion (CTE) when bonding different components together, enhancing overall performance and reliability.
Enhanced Solder Performance: Even in small quantities, indium improves the thermal fatigue performance of solder used in electronic assembly, ensuring longevity and reliability.
Versatile Soldering Solutions: Indium-containing alloys with low melting points below 180°C are ideal for multiple soldering operations or applications requiring lower reflow temperatures.
Ultra-low Temperature Sealing (Indium Sheet)
Indium sheet emerges as an ideal material for ultra-low temperature sealing applications, offering two key advantages:
Maintained Ductility: Indium can maintain its ductility even at ultra-low temperatures, ensuring effective sealing in extreme conditions.
Complete Seal Formation: Soft and highly ductile, indium fills gaps between mating surfaces of metal components, forming a complete seal, crucial for sealing operations in challenging environments.
While traditional sealing materials may fracture at -150°C, indium compensates for defects in uneven surfaces without requiring reflow, making it a preferred choice. Moreover, cleanliness is paramount in indium’s sealing applications, with its self-passivation ability forming an oxide layer on the surface, preventing leakage within sealed components.
In conclusion, indium foil’s remarkable properties make it an indispensable component in thermal management and sealing solutions, driving innovation and reliability across various industries.
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