Electrical System & Utilities

Assemble the stainless vacuum can with internal crucible supports and the selected heater package (MoSi₂ elements or induction coil). Ensure all feedthroughs are water-cooled and rated for 1600–1900 °C operation.

Install the cold-trap on the exhaust path. Use a water-cooled finger plus a removable cryogenic cup to capture SiO and P species before they reach the pump.

Route the chamber outlet through an isolation valve to the pump manifold. Tee in both a Pirani gauge and a capacitance manometer so you can monitor across the full pressure range.

Verify that all seals seat properly under vacuum and that thermocouple or pyrometer sight ports maintain line-of-sight without fouling.

Mount the rotary vane pump on vibration pads and plumb a KF manifold that can independently service the MOE cell and the refining pot. Include check valves to prevent back-streaming.

Build the argon loop: buffer tank → dryer → 0.1 µm filter → mass-flow control → process inlet. Return gas through a filter to the buffer tank to enable reclaim.

Provide an oxygen vent line from the MOE headspace to an exterior safe vent or capture bottle. Install throttling so the process headspace maintains 50–150 mbar above ambient during operation.

Add quick-service ports for leak checks and purge operations. Label every valve position and document the normal operating configuration.

Route 120 V mains through a line conditioner, UPS, or portable power station rated for ≥1.8 kW continuous output. This buffer rides through brownouts and keeps control power stable.

Split clean control power from heater feeds. Use appropriately sized breakers, contactors, and solid-state relays to switch the heating loads. Bond all metallic enclosures and maintain a single-point ground.

Install a dedicated emergency stop that drops heater power and signals the control system to transition to a safe state.

Confirm wire gauges, lug ratings, and insulation class match the expected current draw and ambient temperature.