Rhodium Straight Wire

Industrial Applications

Rhodium Straight Wire (99.9%) is used across semiconductor test, scanning probe microscopy, high-temperature instrumentation, catalysis, and surface science sectors where chemical inertness, axial precision, and tip geometry must be combined in a precious metal wire:

✦ Probe Card Pins in Semiconductor Test Equipment

Used as probe card pins in semiconductor test equipment, where the straight wire format maintains tip geometry without the spring-back or curvature introduced by coiling. Rhodium’s hardness and chemical inertness ensure reliable contact performance across repeated test cycles.

✦ Scanning Tunneling Microscopy Tips & Surface Analysis Probes

Applied as scanning tunneling microscopy tips and surface analysis probes, where tip sharpness and axial straightness are both functional requirements. Rhodium’s resistance to oxidation and tarnish maintains a clean, chemically stable tip surface in demanding surface science environments.

✦ Precision Electrical Contacts & Connector Pins

Used in precision electrical contacts and connector pins, where the combination of high hardness, chemical inertness, and the dimensional precision of the straight wire format delivers reliable, low-maintenance contact performance.

✦ Resistance Elements & Thermocouple Components

Applied as resistance elements and thermocouple components in high-temperature instrumentation, where electrical resistivity of 4.93 µΩ·cm, a temperature coefficient of resistance of 0.00436, and a melting point of 1,985°C support accurate measurement at elevated temperatures.

✦ Heterogeneous Catalyst Substrate in Wire Microcalorimetry

Used directly as a heterogeneous catalyst substrate in wire microcalorimetry experiments for combustion and oxidation reactions at temperatures up to 900 K, where rhodium wire’s high-temperature stability and catalytic activity combine with the straight wire geometry’s dimensional precision.

✦ Electrochemical Reference Electrodes & Surface Science Research

Used as electrochemical reference electrodes and in surface science experiments, heterogeneous catalysis studies, and high-precision electrode fabrication wherever a clean, hard, chemically stable precious metal wire in a defined straight form is required.