Indium Granules, Indium Pellets, and Indium ball
Indium Granules are small, irregularly shaped pieces of high-purity indium, ideal for alloying, plating, and chemical applications. Indium Pellets are uniform, cylindrical shapes of indium used in vapor deposition, thin-film applications, and precise material dosing. Indium Balls are spherical indium forms with excellent purity, thermal conductivity, and softness, widely used in soldering, thermal interfaces, and hermetic sealing.
Princeton Powder is a leading supplier of high-purity indium products.
Formula | Indium |
Part Number | IN2401 |
Purity | 99.99% min |
Shape | Pallet, Granule, ball |
Particle Sizes | 1-3 mm |
Melting point | 156.6 °C |
Boiling Point | 2072 °C |
Density | 7.29 g/cm 3 |
Description of Indium ball
Indium balls are precision-manufactured spherical forms of indium, a rare, soft, and highly ductile post-transition metal. Indium is known for its unique properties, including excellent thermal and electrical conductivity, low melting point, and ability to adhere well to other metals. It also demonstrates high corrosion resistance and maintains flexibility at cryogenic temperatures. These features make indium balls ideal for use in electronics, semiconductors, and optoelectronics, particularly for soldering, thermal interface materials, and hermetic sealing.
Manufacturing method of Indium ball
Raw Material Selection
- High-purity indium ingots (≥99.99%) are sourced to ensure low impurity levels.
Melting and Forming
- Indium is melted under controlled conditions to prevent oxidation and ensure uniformity.
- A precision forming process, such as drop or rotary atomization, is used to create spherical indium balls of uniform size.
Size Grading
- Spheres are screened and classified to achieve tight tolerances in diameter, typically ranging from 0.5 mm to 10 mm or customized sizes.
Surface Treatment and Packaging
- Surface cleaning is performed to remove oxides and impurities.
- Packaged in vacuum-sealed or inert-gas-filled containers to preserve purity and prevent surface oxidation during storage.
Main properties of Indium Granules, Indium Pellets, and Indium ball
Application of Indium ball
Soldering: Used in precision soldering for semiconductors, optoelectronic devices, and cryogenic applications.
Thermal Interface Materials (TIMs): Provides efficient heat transfer between components like LEDs, CPUs, and heat sinks.
Hermetic Sealing: Used in sealing applications for aerospace, vacuum systems, and medical devices.
Alloying: As an alloying agent in fusible materials and low-melting-point solder alloys.
Indium ball Scholar Articles
A simple and rapid method for preparing indium nanoparticles from bulk indium via ultrasound irradiation
Abstract: A simple and rapid process has been developed for the preparation of indium nanoparticles from bulk indium via ultrasound irradiation. Transmission electron microscopy (TEM) shows the as-prepared indium nanoparticles are appear to be close to a spherical shape. X-ray diffraction (XRD) pattern indicates that the samples are the tetragonal phase of indium with the same crystal structure as that of the bulk indium. It is confirmed by X-ray photoelectron spectrum (XPS) analysis that there is an indium oxide layer at the surface of the indium nanoparticles. The tribological property of indium nanoparticles as additives in oil is evaluated on a four-ball tester and shown that indium nanoparticles exhibit good performance in wears.