China Ceramic Alumina Tube manufacturer

Industrial Metallized Ceramic Insulator , Alumina Ceramic Spacer For Electrical Engineering

Product Details:
Place of Origin: China
Brand Name: Jinghui ceramics
Certification: RoHS, REACH, ISO
Model Number: JH.MCI.018
Payment & Shipping Terms:
Minimum Order Quantity: 100pcs
Price: Negotiable
Packaging Details: Vacuum packaging and export carton
Delivery Time: 28~35 days
Payment Terms: T/T, Western Union, MoneyGram, Paypal
Supply Ability: 5000 pieces / month

Detail Information

Product Name: Metallized Ceramic Spacer Type: Ceramic Parts
Raw Material: 95%-99% Alumina Ceramic Density: 3.65g/cm3
Color: White Shape: Customized Designs
Size: Size Customized Package: Vacuum Packaging
Usage: For Electrical Engineering
High Light:

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Product Description

Industrial Metallized Alumina Ceramic Spacer For Electrical Engineering

Description of metallized alumina ceramic spacer:

1. We are dealing with a selection of raw materials for metalized ceramic spacer, including 95% alumina, 99% alumina, zirconium oxide (ZrO2), Beryllia oxide(BeO).
2. In order to achieve the joining from ceramic to ceramic, ceramic to metal, a certain metallic layer will be applied to the surface of ceramic parts which cured by high temperature, then the metallic layer will adhere to the section tightly. 

3. Jointing type of metallization

● Ceramic base + Molybdenum-Manganese ( Mo - Mn) metallization,   20 ~ 40um thick

● Ceramic base + Silver ( Ag) plating,   2~ 4um thick

● Ceramic base + Molybdenum-Manganese (Mo - Mn) + Nickle (Ni) plating, Mo/Mn: 20 ~ 40um thick, Ni: 2~6um thick

● Ceramic base + Tungsten ( W) + Gold (Au) plating, W: 20~40um thick, Au:  0.5um thick 


Key performance parameters of metallized ceramics

Leak rate

≤1×10-11 Pa•m3 / s Metal layer tensile strength ≥ 150Mpa

Volume resistivity

≥108Ω•cm CTE (6.5 ~ 8.0) × 10-6 /°C

Insulation strength

≥18kV/mm (D•C) Dielectric constant 9~10(1MHz, 20°C)

Visual quality: 1. No cracks, no bubbles; 2. Evenly distributed glaze; 3. No contamination


Prime features of metallized ceramic insulators:

●High bonding/brazing strength                       ●Min. electric resistance and vacuum tightness       ●High mechanical strength, insulation strength
●Anti-chemical, anti-aging without corrosion    ● Super wear resistance with long service life


The main application of metallized ceramic insulators:

Metallized ceramic insulators are widely used in electronics, high-vacuum technology, sensors, and medical fields, like vacuum interrupters, electron tubes, feedthroughs, medical linear accelerators/ power tubes, photomultipliers, X-ray tubes, and pressure sensors.


Other related metallized ceramic insulators

We are capable of producing a great many complicated structure metallized ceramic insulators as per customer's specification, special needs. Whatever, it's a small-size part or large-size part, we could achieve it well. 

Industrial  Metallized Ceramic Insulator , Alumina Ceramic Spacer For Electrical Engineering 0


Packaging proposal and transportation

1. Vacuum packaging with drier as the inner package; 

2. An exported carton as the outer package;

3. The wooden case will be used if needed.
Industrial  Metallized Ceramic Insulator , Alumina Ceramic Spacer For Electrical Engineering 1

Why choose us?

★ 10+ Years of manufacturing experience in OEM, ODM                     ★ Powerful R&D, mass production capability                     

★ In-house comprehensive manufacturing types of equipment            ★ Rigorous quality control system and processes

★ Surpassing pre-sales and after-sales service                                   ★ Abide all orders as the first priority

FAQs(Frequently Asked Questions)

Q1. Are you a factory or trading company?
A: We are a manufacturer. You are welcome to visit our factory.

Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.

Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours

Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.

Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.

Q6: How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per international AQL standard. A 100% cosmetic inspection will be done.

Q7: What other products are you dealing with?
A: We focus on a variety of ceramic tubes, ceramic substrates, ceramic sheets, textile ceramics besides metalized ceramics.

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