BN Crucibles: The Top Choice for Crystal Growth

Boron nitride (BN) crucibles have become a popular choice for researchers in various fields, including the growth of single-crystal diamond. One research paper that investigates the properties of boron nitride crucibles is "Properties of Boron Nitride Crucibles for Growth of Single-Crystal Diamond," by A. Yoshikawa, Y. Kato, and K. Kobayashi, published in the Journal of Crystal Growth in 2003.

Compared to traditional crucible materials like alumina or silica, boron nitride crucibles offer several advantages that make them a top choice for researchers. These include high thermal stability, chemical inertness, non-wettability, and low contamination.

In the case of growing single-crystal diamond, boron nitride crucibles offer superior thermal stability compared to other materials. The high melting point of boron nitride, which can reach up to 3000°C in an inert atmosphere, allows for the growth of diamond crystals at high temperatures. In addition, boron nitride has a low coefficient of thermal expansion, which means it can withstand thermal cycling without cracking or warping.

Furthermore, boron nitride is chemically inert, meaning it does not react with most substances. This is particularly important in the growth of diamond, as any impurities or reactions with the crucible material could lead to defects in the crystal structure. Boron nitride also exhibits non-wettability, preventing the adhesion of molten metal or other materials onto the surface of the crucible.

QS Advanced Materials Inc is a major supplier of high-quality boron nitride crucibles, offering the largest size available (400mm x 400mm x 200mm). Our boron nitride crucibles are made from high-purity h-BN powder and sintered at high temperatures to form dense, uniform, and crack-free crucibles. Our crucibles have excellent thermal stability, chemical inertness, and non-wettability properties, making them an ideal choice for researchers in various fields.

In conclusion, boron nitride crucibles offer superior properties compared to traditional crucible materials like alumina or silica. Researchers prefer boron nitride crucibles for their high thermal stability, chemical inertness, non-wettability, and low contamination. QS Advanced Materials Inc is a leading supplier of high-quality boron nitride crucibles, offering the largest size available and ensuring reliable and accurate results in research and development.