Pyrolytic Boron Nitride (PBN) MBE Crucible

Pyrolytic Boron Nitride 

Pyrolytic boron nitride ceramic is prepared by the CVD process (chemical vapor deposition), with all the boron nitride crystals growing parallel to the surface of which the vapor is deposited. PBN is also called chemical vapor deposition boron nitride.

PBN is deposited by the reaction of ammonia and boron halide under high temperature and high vacuum conditions. It can be deposited in sheet/strip form, it can also be directly deposited into PBN final products such as tubes, rings, and thin-walled containers (crucibles).

Compare to hot-pressed boron nitride (BN), no hot-press sintering process & binder are engaged. The material purity is higher than HBN since the raw material is high purity gas (BCl3 + NH3 –> BN +HCl), the typical purity for PBN is 99.99%.

PBN is an advanced material with excellent properties, including

-Non-toxic and odorless;

-High purity & density

-No react with acid, alkali, salt, and organic reagents at room temperature, and slightly corroded in molten salt or alkali solution, but it can resist corrosion of various acids at high temperature;

-No react with most molten metals, semiconductors, and their compounds;

-The oxidation resistance is good below 1000 °C;

-Good thermal shock resistance

-The use temperature is high, there is no sublimation point, and it is directly decomposed into B and N above 3000 °C

Synonyms

h-BN; Elbor; hexagonal boron nitride; Boron mononitride; Nitridoborane; Nitriloborane

Pyrolytic Boron Nitride (PBN) MBE Crucible Specifications

Dimensions

Per your request or drawing

We can customized as required

Properties（Theoretical)）

Advantage

● Non-toxic and odorless;

● No react with most molten metals, semiconductors, and their compounds;

● -The oxidation resistance is good below 1000 °C;

● -Good thermal shock resistance –

● The use temperature is high, there is no sublimation point, and it is directly decomposed into B and N above 3000 °C

● High purity (99.999%)

● Low outgassing in high temperature

● Uniform thickness, Good consistency in heating

● Excellent thermal conductivity and shock resistance

● Easy cleaning and Reusability

● High density (> 2.12g/cm³)

● High interlayer strength, easy to clean and repeated use

● No react with acid, alkali, salt, and organic reagents at room temperature, and slightly corroded in molten salt or alkali solution, but it can resist corrosion of various acids at high temperature;

Pyrolytic Boron Nitride (PBN)  Applications

PBN ceramic materials have high purity, chemical inertness and excellent thermal conductivity, making PBN crucible an ideal container for elemental purification, crystal growth and semiconductor manufacturing, especially for the preparation of next-generation compound semiconductors such as GaAs, InP, etc.

At the same time, PBN products are also widely used in aviation, aerospace, electronics, chemical, special metallurgy, medical and other fields.

Pyrolytic Boron Nitride (PBN) Packing

Standard Packing:

Sealed bags in carton boxes. Special package is available on request.

As a ceramic material, boron nitride is quite fragile in a lot of cases. The Pyrolytic Boron Nitride (PBN) MBE crucibles are usually held in plastic bags by vacuum, and protected with heavy foam.

Our Pyrolytic Boron Nitride (PBN) are carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original condition.

Chemical Identifiers