INNOVACERA | technical ceramic solutions

  Ceramic-to-metal vacuum feedthroughs pass electrical leads through chamber walls while maintaining a dependable hermetic bond between the ceramic and metal components. In semiconductor, thin-film deposition, and vacuum coating equipment, even a minor leak degrades vacuum integrity, causes batch contamination, and triggers unplanned line stoppages.   A common engineering headache is that feedthroughs often pass initial helium leak tests at room temperature immediately after manufacturing, only to develop catastrophic vacuum leaks after repeated heating and cooling cycles in service. Root cause troubleshooting can be deceptive: the ceramic insulator may appear completely intact, while microscopic leakage paths form along the ceramic-metal interface, the braze alloy boundary, or the flange mating face.   Thermal cycling is a primary trigger, but temperature variation alone does not explain failure. Coefficient of thermal expansion (CTE) mismatches, metallization adhesion ...

Setter plates serve as essential supports for metal injection molding (MIM) parts inside sintering furnaces, directly affecting sintering quality, surface finish, dimensional stability, and production efficiency. As sintering temperatures and production volumes increase, choosing the right setter plate becomes increasingly important.   INNOVACERA offers ceramic setter plates for MIM sintering , including custom alumina (Al2O3) designs to meet different component geometries and furnace requirements. Proper setter selection can help manufacturers address common problems such as warpage, sticking, and inconsistent part dimensions.   How Does Setter Plate Flatness Affect MIM Warpage?   MIM parts usually undergo approximately 15-20% linear shrinkage during sintering, depending on the material and process conditions. If the setter surface is uneven or the plate deforms at high temperatures, the contact conditions between the part and setter can change, potentially affecting fin...

  Metallized ceramic rings are widely used in electrical and industrial components where electrical insulation, structural support, and connection with metal parts must be achieved simultaneously. By forming a metallized layer on designated areas of ceramic surfaces such as alumina, ceramics that would otherwise be difficult to connect directly to metals become suitable for subsequent soldering, brazing, or assembly.   In a surge arrester component project, the customer assembled metallized ceramic rings with corresponding metal parts. Since the original design involved silver layers and precious metal costs had risen, the customer sought a more cost-effective alternative and proposed evaluating three metal coating options: aluminum, nickel, and silver.   This led to a practical engineering question: How should one choose among aluminum, nickel, and silver for metallized ceramic rings? If the goal is cost reduction, is it sufficient to compare only the material prices of ...

Alumina ceramic  is widely applied in the high-temperature industry because of its excellent resistance to high temperatures. It can withstand high temperatures up to 1800℃, in addition to its stable chemical properties, high mechanical strength, and electrical insulation. So  Alumina ceramic tube  is commonly used in high-temperature furnaces, thermocouples tubes, insulating tubes, and corona electrode’s square ceramic tubes. In this articles, we would like to discuss how to use alumina ceramic tubes at high temperatures to ensure optimal performance and longevity.

Innovacera’s metallised ceramic rings are used in image intensifier tubes for night vision equipment and other instruments. Specifications: -High purity alumina ceramics-95-96% alumina. -Metallization-Mo/Mn metallized with Nickel plating. -Customised sizes and metallisation patterns available. Features: Shape As per request. Mostly are using ring shape Size Big ring OD30.5*ID24.2*3.20mm Small ring OD30.5*ID27.5*1.06mm Or custom by your drawing Color White Properties l Ultra-high vacuum compatibility (10 -8  to 10 -9  mbar.l/s) l Good dielectric strength (13KV/mm in AC and 42KV/mm in DC) Four ceramic rings are using in one image intensifier tubes. Each metalized ceramic ring serves not only as a part of the electrode conductive path, but also as a mechanical positioning and vacuum holding function. The rings are often precisely bonded through brazing or metal support structures to form a cylindrical main structure. Functional: Realize electrode cascade and electric fi...

Metallization ceramic cylinders  are a crucial component of vacuum interrupters (often referred to as VI) used in the fabrication of vacuum circuit breakers (VCB). VCBs find application in medium-voltage switchgear and distribution circuits, where they play a pivotal role in regulating distribution voltage by suppressing voltage surges. Innovacera is a lead supplier of  high purity alumina metallized ceramic cylinders . These metalized cylinders are used in vacuum arc extinguishing chambers worldwide due to their excellent electrical insulation properties   Innovacera specializes in the metallization of molybdenum-manganese (Mo-Mn) and nickel plating, providing excellent hermetic sealing for these metallzed ceramic cylinders, essential components in vacuum interrupters.   The hermetic sealing ensures the maintenance of the required vacuum level for efficient arc extinguishing within the interrupter chamber. Moreover, the high mechanical strength of Mo-Mn metallizatio...