PBN4690 Pyrolytic Boron Nitride Ring, PBN Ring

Pyrolytic Boron Nitride Ring Description

Pyrolytic Boron Nitride Ring is an ideal product for semiconductor industries & vacuum systems. It is synthesized on the mould by the chemical vapour deposition (CVD) process. PBN is extremely pure, as the purity of gas material is easier to control. With such a high purity level, PBN rings are widely applied in the effusion cell of OLED production. PBN product features ultra-high purity, chemical inertness, excellent high-temperature resistance, and high-temperature stability.

The diameter of raw material PBN was limited by equipment size but Pyrolytic Boron Nitride Ring could be machined to highly customised shapes with competitive price cost.

Pyrolytic Boron Nitride Ring Specifications

*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us.

Pyrolytic Boron Nitride Ring Applications

1. Semiconductor Industry: Used in high-temperature processes such as crystal growth and wafer processing, providing a contamination-free environment and excellent thermal stability.

2. Material Processing: Employed as components in high-temperature reactors and furnaces, where their chemical inertness and thermal resistance are crucial.

3. Chemical Processing: Applied in reactors and vessels handling aggressive chemicals and molten materials, benefiting from their corrosion resistance and high-temperature durability.

4. Optoelectronics: Utilised in the production and processing of optoelectronic devices, where high-purity and stable operating conditions are essential.

5. Aerospace and Defence: Used in components that require high thermal stability and resistance to harsh environments, such as in propulsion systems and high-temperature coatings.

Pyrolytic Boron Nitride Ring Packaging

Our products are packaged in customised cartons of various sizes based on the material dimensions. Small items are securely packed in PP boxes, while larger items are placed in custom wooden crates. We ensure strict adherence to packaging customisation and the use of appropriate cushioning materials to provide optimal protection during transportation.

FAQs

Q1: What is a Pyrolytic Boron Nitride (PBN) ring?
A: A PBN ring is a precision-machined component made from pyrolytic boron nitride, produced via chemical vapour deposition (CVD). It features excellent thermal and chemical stability, high purity, and is commonly used as an insulator, spacer, or structural part in high-temperature and high-vacuum environments.

Q2: What are the key properties of PBN rings?
A:

Ultra-high purity (>99.99%), ideal for contamination-sensitive applications

Excellent thermal stability, withstanding up to 1800°C in vacuum and 2000°C in inert gas

Electrical insulation with high dielectric strength

High thermal conductivity (in-plane) for heat management

Non-reactive and non-wettable to most molten metals

Pore-free and dense microstructure, unlike traditional pressed ceramics

Q3: What are the typical applications of PBN rings?
A:

Insulating rings in high-vacuum or high-temperature furnace assemblies

Spacer or support rings in MBE, CVD, and MOCVD systems

Sealing or shielding components in semiconductor processing equipment

Crystal growth systems for compound semiconductors

Precision thermal isolators in analytical and electronic instruments