Thick Film Deposition Alumina Metalized Ceramic Spacer for Gdt

• Application: Refractory, Structure Ceramic, Industrial Ceramic, Brazing
• Type: Ceramic Parts
• Product Name: Metalized Ceramic Spacer
• Optional Purity: 96%, 99% and 99.5% Alumina
• Color: White, Beige, Pink
• Usage: for Ceramic to Metal Joint Technology
• Model NO.: Customized
• Material: Alumina Ceramic
• Transport Package: Vacuum Packaging with Desciant
• Specification: 36cm x 20cm x 24cm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000
• Production Capacity: 50000/Month

Product Description

High Purity Alumina Metalized Ceramic Spacer for GDT 

Standard types of the metalization
1. Alumina ceramic base +  silver (Ag) plating directly
2.Alumina ceramic base +  molybdenum (Mo/Mn) metallization
3.Alumina ceramic base +  molybdenum (Mo/Mn) metallization + nickel (Ni) plating
4. Alumina ceramic base + tungsten (W) metalization + gold (Au) plating 

The key parameters capability

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

The prime features of alumina metalized ceramics
1. High bonding/brazing strength with ideal vacuum tightness between the assembly
2. With diamond-like hardness to be 85 HRV and superb compressive strength 
3. Great insulation strength and volume resistivity that fit for various high voltage high current applications     
4. Chemical stability, anti-aging even if it works in a variety of harsh environments, free of rust forever.
5. Over 276 times wear resistance in comparison with stainless steel, it leads to a long service lifespan.

The description of the metalized ceramics
Ceramic-to-metal and ceramic to ceramic bonding have been one of the biggest challenges in the high voltage, high power, electronic industries, high current vacuum electrical in the past years because of their inherent differences in the thermal expansion coefficients of the two types of materials. So far, the most regular preferred and effective method for creating a leak-tight, robust joint between ceramic and metal is by brazing. This starts with the chemical bonding metallization of the ceramic to create a wettable surface on which braze alloy will flow between the two components during the brazing process.


The typical application of metalized ceramics
Remark:
Metalized ceramics are widely used in electronics, high-vacuum technology, sensors, and medical fields,
like vacuum interrupters, electron tubes, feed-throughs, medical linear accelerators/ power tubes, photomultipliers, X-ray tubes, and pressure sensors

Why choose us?
★ 10+ Years of manufacturing experience in OEM, ODM for producing a variety of technical ceramic parts
★ In-house comprehensive manufacturing types of equipment from raw material to secondary process
★ Powerful R&D and mass production capability to support and meet customized needs in a short time
★ Rigorous quality control system and processes from incoming material to shipping of finished goods        
★ Surpassing pre-sales and after-sales service, all actions we do are just for customers' business growth           



FAQs (Frequently Asked Questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer with 15 years of OEM, ODM experience for technical ceramic components. 
Q2: Do you send a sample to check?
A: For sure, the standard type of sample in stock would be free of charge, but freight collect.
Q3: 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.
Q4: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.
Q5: How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per international AQL standard.
The cosmetic inspection will be done fully.