Indium

Material information

The Invisible Conductor of the Touchscreen Era

Enabling advanced optoelectronics and technology-critical displays with Less Common Metals.

Indium is the hidden element at your fingertips. So if you’re reading this on a smartphone, tablet, or flat-screen monitor, you are looking right through it. With this material, it is the rare, highly specialised metal that makes transparent, conductive screens possible, acting as the vital bridge between human touch and digital response.

As a premier UK supplier of high-purity metals, Less Common Metals (LCM) understands the exacting demands of the global technology sector. Based in Ellesmere Port, UK, we supply the high-grade Indium essential for advanced electronics, optoelectronics, and specialised cryogenic sealing.

Technical Details

CompositionIndium 6N8
Common metallic impuritiesTrace metals basis
Physical DescriptionSilver-grey coloured metallic lump or ingot
AnalyticsMetallic impurities determined by GDMS (Glow Discharge Mass Spectros-copy)
Certificate of analysisAvailable upon request
PackagingPacked in sealed polythene bags and supplied in securely sealed metal drums, resistant to the impregnation of water

What is Indium?

Indium is a very soft, silvery-white post-transition metal with a brilliant lustre. It is so soft that you can easily score it with your fingernail. Indium is a minor component in zinc sulfide ores and is produced almost entirely as a byproduct of zinc refinement. Today, it is universally recognised by governments and tech giants alike as a “Technology-Critical Element.

What is Indium used for?

Indium’s unique physical and electrical properties make it indispensable in modern electronics:

  • Transparent Conductive Coatings (ITO): This is Indium’s most famous and vital application. When alloyed with tin to create Indium Tin Oxide (SnO2), it forms a coating that is both electrically conductive and optically transparent. This is applied as a microscopic film to glass, forming the core technology behind LCD screens, OLED displays and touchscreens.

  • Low-Melting-Point Solders: As it melts at a relatively low temperature, Indium is a major component in specialised lead-free solders. These are critical in the semiconductor industry for bonding delicate electronic components that would be destroyed by the heat of traditional soldering.

  • High-Vacuum Seals: Thanks to its extreme softness and malleability, pure Indium is used to create gaskets and seals for high-vacuum and cryogenic (ultra-low temperature) laboratory equipment, as it remains pliable even in deep-freeze conditions.

 

Indium Industry Insight

The Display Bottleneck

We live in a world dominated by screens, and almost all of them rely on Indium Tin Oxide (ITO). But because Indium is relatively rare and produced merely as a byproduct of zinc mining, its supply chain is incredibly inelastic. So as the demand for smart devices, augmented reality (AR) glasses, and touch-interfaces skyrockets, securing a high-purity, reliable supply of Indium is a major strategic priority for the Western tech industry.

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