INNOVACERA | technical ceramic solutions

  Boron Nitride Sliding Plates in Induction Tunnel Furnaces   Boron Nitride sliding plates, also referred to as Boron Nitride sliding planes , are used in induction tunnel furnaces for the continuous production of precious metal ingots .   During continuous precious metal production, materials move through different stages of the induction tunnel furnace while being exposed to high temperatures and repeated thermal cycles. The sliding plates/planes provide a stable surface for material movement and support within the furnace.   In this demanding environment, the material used for the sliding surface needs to withstand high temperatures while maintaining low friction and good dimensional stability. At the same time, minimizing adhesion between the processed precious metals and the sliding surface is important for stable operation and product quality.   Boron Nitride is well suited to these requirements due to its low friction, excellent thermal shock resistance, ...

A suitable aluminum nitride substrate must meet the thermal budget, survive the manufacturing process and provide consistent performance in the final assembly. Thermal conductivity alone cannot establish that fit.This engineering guide explains how to compare conductivity grades, balance thickness against other design requirements, define surface and geometric controls, and convert sample validation into a purchasing specification.For available material grades, dimensions and machining options, see our Aluminum Nitride (AlN) Substrates product page. In this guide Start with the thermal resistance budget Selecting the Right Thermal Conductivity Grade Select thickness together with insulation and manufacturability Define thickness tolerance, TTV, warpage and surface finish separately Match the substrate to the downstream process Use representative test data without turning it into a blanket guarantee Qualify the material through three stages Turn the design decision into a purchasing sp...