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Pyrolytic Boron Nitride Crucible

Introduction

In this article, we will explore the unique properties and applications of pyrolytic boron nitride (PBN). Also known as Chemical Vapor-Deposited Boron Nitride (CVD-BN), PBN is a remarkable material that finds use in various industries. Let’s delve into the characteristics and uses of both PBN and its related form, hexagonal boron nitride (hBN).

Pyrolytic Boron Nitride (PBN) and Hexagonal Boron Nitride (hBN)

Pyrolytic boron nitride is a form of boron nitride deposited through a chemical vapor deposition (CVD) process. The structure of PBN is typically hexagonal, similar to hBN, but it may have some stacking faults or deviations from the ideal hexagonal lattice found in hBN.

 

BN structures
BN structures (left: hexagonal; right: cubic)

Properties and Features of PBN

Pyrolytic boron nitride possesses exceptional properties, including excellent thermal stability, intrinsic purity, high mechanical strength, and superb thermal conductivity. Unlike ordinary hot-pressed boron nitride (BN), PBN does not require conventional hot-press sintering or sintering agents, which further enhances its purity and density. The material exhibits high insulation resistance, and high dielectric strength over a wide temperature range, and is non-wetting, non-toxic, and non-reactive to most other compounds. Additionally, PBN is very easy to machine.

Applications of PBN

Pyrolytic boron nitride (PBN) finds extensive applications in various industries due to its outstanding properties. It is widely used in the semiconductor industry for manufacturing semiconductor components and in photovoltaic applications. PBN serves as an essential material for coatings on graphite and as crucibles for crystal growth. The material’s high purity level and density make it a preferred choice in critical applications.

Conclusion

Pyrolytic boron nitride (PBN) is a versatile material with remarkable thermal stability, high purity, and exceptional mechanical strength. Its hexagonal structure, obtained through chemical vapor deposition, makes it a valuable material in the semiconductor, photovoltaic, and crystal growth industries. Stanford Advanced Materials (SAM) offers a wide range of PBN products, including crucibles for various applications. For more information, please visit https://www.sputtertargets.net/.

About the author

Julissa Green graduated from the University of Texas studying applied chemistry. She started her journalism life as a chemistry specialist in Stanford Advanced Materials (SAM) since 2016 and she has been fascinated by this fast growing industry ever since. If you have any particular topics of interest, or you have any questions, you can reach her at julissa@samaterials.com.

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About Us

Stanford Advanced Materials (SAM) Corporation is a global supplier of various sputtering targets such as metals, alloys, oxides, ceramic materials. It was first established in 1994 to begin supplying high-quality rare-earth products to assist our customers in the research and development (R&D) fields.

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