The Difference Between Cubic Boron Nitride And Hexagonal Boron Nitride

Cubic boron nitride (cBN) and hexagonal boron nitride (hBN) are two types of boron nitride crystals that have distinct differences in their crystal structures and properties.

cBN has a cubic crystal structure and is the second hardest material after diamond. It is highly resistant to chemical erosion and has high thermal conductivity. It is often used as a cutting tool due to its superior hardness and wear resistance. cBN is also used as a high-precision bearing material and in the production of abrasive and polishing materials.

In contrast, hBN has a hexagonal crystal structure and is a white, soft, and slippery material that is often used as a lubricant due to its low friction coefficient. It is also electrically insulating and has high thermal conductivity. hBN is used in various applications such as cosmetics, electronic components, and as a manufacture of composites.

While both cBN and hBN are made up of boron and nitrogen, the difference in their crystal structure results in different physical and mechanical properties. Understanding these differences allows one to choose the appropriate material for specific applications and can lead to significant improvements in performance and efficiency.

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