96% Alumina Metallized Ceramics for High Voltage

Metallized Ceramic Componenets: Innovacera supplies precision metallized ceramic parts in aluminum oxide ceramics for the medical, and aerospace industries. Through spray, needle, and brush coatings or screen printing our capabilities allow us to metallized on flat, cylindrical, and complex ceramic bodies. Moly-Manganese is the typical base coat materials used for metallization.In order to achieve the welding between ceramic and metal, the ceramic surface firmly adheres to a layer of the metal film, which is ceramic metallization.Refractory-metalized aluminum oxide ceramics widely use in power grid tubes, vacuum interrupters, and similar applications where metal to ceramic joints of exceptional strength and hermeticity is required. Specification >Metallization thickness: 25 ±10um >Nickel thickness:2~10um >Pin full strength: 4200kgf/cm2 avg. (at Φ3.0mm pin) Available Ceramic Composition >94%,96%,99%,99.

In a development that could have a significant impact on the electronics industry, the latest ceramic metallized insulators are making strides in enhancing semiconductor packaging and related applications. These insulators offer a range of practical benefits that can improve the performance and durability of electronic components. Let’s take a closer look at what sets them apart: Key Features of Ceramic Metallized Insulators: 1. Stability and Strength: The ceramic material employed in these insulators boasts an even texture, ensuring every batch maintains stable quality and flexural strength. This consistency in material quality is pivotal for the reliability of electronic components. 2.Dense and Weldable Metal Layer: The metal layers in these insulators are densely applied, providing a smooth and even surface. This not only enhances their appearance but also makes them easy to work with, particularly in manufacturing processes.

DBC ceramic substrate: Direct bonded copper (DBC) substrates are commonly used in power modules, because of their very good thermal conductivity. They are composed of a ceramic tile (commonly alumina) with a sheet of copper bonded to one or both sides by a high-temperature oxidation process (the copper and substrate are heated to a carefully controlled temperature in an atmosphere of nitrogen containing about 30 ppm of oxygen; under these conditions, a copper-oxygen eutectic forms which bonds successfully both to copper and the oxides used as substrates). The top copper layer can be preformed prior to firing or chemically etched using printed circuit board technology to form an electrical circuit, while the bottom copper layer is usually kept plain. The substrate is attached to a heat spreader by soldering the bottom copper layer to it. 1. Thickness of substrate can be thin: 0.25mm,0.28mm,0.45mm,0.5mm,0.635mm,1.0mm,1.5mm, 1.8mm,2.0mm 2.

Alumina cearmic bar is used when conditions exclude the use of metal, either for chemical reasons or because of excessive temperatures.Their main applications are between 1000 and 1800°C. They may be in directly contact with the medium or may be used as a gas-tight inner sheath to separate the thermocouple from the actual metal protection tube. Ceramic tubes should be mounted in a hanging position above 1200°C to prevent distortion or fracture due to bending stresses. Evenhair-line cracks can lead to contamination of the thermocouple resulting in drift or failure. High purity ceramic strip provide a broad range of engineering properties: High Temperature-Superior Strength-Corrosion Resistance-Thermal & Electrical Insulation along with other specialized characteristics. -Precision Close, Tight Tolerances, -Ceramic Bar & Ceramic Strip machined to customer specifications-Prototype to Production-Intricate ceramic machining -Alumina is widely used in automotive,petro-chemical