Metallized and Resistive Coated Ceramics, Vacuum and Atmosphere Brazed Assemblies, and Photochemically Machined Parts.
Metallization of Ceramics
Elcon offers precision metallized ceramic components for the military, medical, and aerospace industries. Through spray, needle, and brush coatings or screen printing our capabilities allow us to metallize on flat, cylindrical, and complex ceramic bodies. Moly-Manganese and Tungsten-Manganese are the typical base coat materials used for metallization. We specialize in metallizing ceramics with a coating thickness ranging from 0.0005" to 0.0015". We measure the thickness of metallized coatings using XRF technology.
Aluminum oxide, beryllium oxide, and sapphire are some common materials we metallize. After metallization, a thin or thick metal coating is applied to the metallized layer to improve its wettability, preparing the substance for subsequent brazing operations. These components are widely used in a variety of industries.
Hermetic Brazed Assembly Services
Elcon specializes in joining ceramic to metal and metal to metal assemblies by brazing. Our brazing processes offer several advantages, including high hermiticity and repeatability with minimal part-to-part variation. Typical base materials that we braze include copper, alloy steels, molybdenum, stainless steel, and Kovar. Common applications include aerospace components, microwave-transmitting tubes, and medical components.
We typically work with active metal braze, copper, gold, and silver-based alloys. Depending on your material type and part geometry, our experienced engineers will select the appropriate brazing method to join custom components.
Through atmosphere or vacuum brazing, we join metal to metal and ceramic to metal in a controlled environment. This process protects the assemblies from oxidation. Our active metal brazing process is suited for assembling metal substrates to ceramic parts without metallization and is normally very cost effective.
As an additive value service we can join metal components by laser, TIG, or spot welding. We also offer gold, nickel, silver and copper plating services that comply with military standards (Mil Spec).
We have over four decades of experience in manufacturing photochemically etched components for the military and aerospace markets. Optical encoders, lead frame prototypes, and R/F shielding components are some of the common photochemically machined products that we manufacture. Elcon specializes in processing diverse base materials, including molybdenum, tungsten, copper, stainless steel, and titanium, with thicknesses ranging from 0.0005" to 0.100".
Technical designs for your projects are created by our CAD/CAM department. Using Optibeam printers, photographic artwork designed from custom specifications are plotted on to photoresists that preserve surface metal during photo etching. After the imaging phase, we use Chemcut etchers to remove undesired areas from metal surfaces. Our photochemical etching process offers several advantages, including low cost tooling, design flexibility, fast turnaround, and dimensional repeatability.
Flat as well as 3D curved surfaces can be precisely etched to tight tolerances of up to 0.00025". Through chemical milling, we accurately etch holes and slots on a wide range of materials. The minimum hole diameter and spacing between holes can be 1.5 times the material thickness. Our average lead time is 3 weeks ARM for planar and 8 weeks ARM for 3D Grids. Expediting services are also available.