Ceramic-to-metal Sealing Ceramic Feedthrough
for Coating Machine High Temperature Resistance Corrosion Resistance
Metallized ceramic bushings are the unsung heroes of reliable ceramic-metal connections – boasting excellent insulation and strong metallurgical bonding.
✅ Excellent insulation properties for high-performance applications
✅ Precise metallization process for perfect ceramic-metal combination
✅ Full range of standard sizes + custom shapes/sizes to meet your unique needs
Metallized Alumina Ceramic Alumina (Al₂O₃) ceramic parts represent advanced engineering components manufactured from high-purity aluminum oxide.
With exceptional hardness, thermal stability, chemical resistance, and electrical insulation properties, these precision components serve critical f
unctions across semiconductor, medical, industrial, and high-tech applications where traditional materials fail to perform.


Application
|
Applications:
|
|
Feed-through insulators
|
Power switches
|
|
Insulating discs
|
Traveling wave tubes
|
|
Insulator rings and cylinders
|
Vacuum interrupters
|
|
Headers
|
Windows
|
|
High-power receptacles
|
Power grid tubes
|
|
Precipitator products
|
X-ray tubes
|
|
Joining types:
|
|
Ceramic + Mo/Mn Metallized + plating Ni
|
|
Ceramic + Mo/Mn Metallized + plating Ag
|
|
Ceramic + Mo/Mn Metallized + plating Au
|
|
Ceramic + printing Ag
|
|
* Special types are available according to customer's drawings or samples.
|
Specifications
Mechanical Properties
|
|
|
|
|
|
|
|
|
|
|
|
Thermal Conductivity @ 20°C
|
|
|
|
|
Thermal Expansion a at 20–400°C
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Properties
|
Unit
|
95%Al2O3
|
99%Al2O3
|
99.5%Al2O3
|
|
Dielectric Constant
|
1MHz
|
9.4
|
9.9
|
9.9
|
|
Dielectric Strength
|
V/m
|
15 x 10 6
|
15 x 10 6
|
15 x 10 6
|
|
Dielectric Loss
|
1MHz
|
4 x 10 -4
|
4 x 10 -4
|
4 x 10 -4
|
|
Volume Resistivity @ 25°C
|
Ω・cm
|
>10 14
|
>10 14
|
>10 14
|
|
Volume Resistivity @ 500°C
|
Ω・cm
|
>10 8
|
>10 8
|
>10 10
|
Various Types of Metallized Alumina Ceramic
We Can Do OEM and 0BM According to Your Drawing and Requirements.

Ceramic-to-Metal brazing components are widely used in electrical engineering due to their good performance
for high-vacuum, high-voltage and high-pressure applications. We manufacture a large range of metalized
ceramic components with the latest technologies in order to meet the needs of our clients. Our metallizing
processes could be customized according to clients’ requirements.
Material :
· Insulator-Glazed Ceramic 95% or 99% Al2O3 (white or pink)
· Feedthrugh – Nickel, Kovar, Copper
· Weld Sheath/Flange-Nickel, Kovar, 304 Stainless Steel
Features:
· Feedthroughs are custom made to specifications that determined by the electrical, temperature, and environmental condition requirements.
· Standard parts are available
Characteristics
· High Abrasion Resistance
· High Mechanical Strength
· Pressures over 10,000 PSI
· High Temperature Usage
· Low Dielectric Loss
· Mass Spectrometer Leak Tested
· High Chemical Stability
Typical Applications:
· Aerospace
· Defense Industries
· Aviation
· Industrial Application
· Nuclear Equipment
Packing


 |
Hunan Yuanhong New Material Co.,Ltd was established in 2016 ,there are over 100 sets of ceramic professional equipments , several types of furnace in more than 8000 square meters production workshops. ISO9001 certified, a variety of advanced ceramic materials are ROHS and REACH certified. |
Q1. Do you provide product samples? Yes, we provide samples subject to availability. A nominal sample fee may apply in some cases, and shipping costs are borne by the customer.
Q2. What are your accepted payment methods? We accept T/T (bank transfer) in advance, Western Union, Alipay, and PayPal.
Q3. What is your typical delivery lead time? Lead times vary depending on product requirements, including material selection, dimensions, and specific manufacturing processes.
Q4. Do you perform quality inspection before shipment? Yes, we conduct 100% inspection of all goods prior to delivery to ensure they meet specified standards.
Q5. What other ceramic materials do you offer? We supply a range of advanced ceramic materials, including Alumina, Zirconia, Aluminum Nitride,Boron Nitride, Silicon Nitride, Machinable Glass Ceramic, and related specialized ceramic