Whiskers refer to fibrous one-dimensional materials with a certain aspect ratio generated in the form of single crystals. Due to its relatively ideal single crystal structure, the atomic arrangement is highly ordered, which makes the defects in the whiskers low, thus having outstanding mechanical properties and functional characteristics. When used as a reinforcing and modified material, the mechanical strength and toughness of the composite material can be significantly improved; and because whiskers are typical one-dimensional single crystal materials, they also have outstanding advantages in functional properties such as heat transfer and conductivity.
Boron nitride has excellent properties such as high temperature resistance, oxidation resistance, chemical corrosion resistance, and neutron absorption, and has low dielectric constant and dielectric loss. It has important applications in cutting-edge fields such as thermal protection of carbon fiber surface oxidation resistance coatings and atomic reactors. Boron Nitride Whisker combines the excellent properties of boron nitride and whisker materials, and has important applications in the fields of composite materials or functional materials. Especially for hexagonal boron nitride, because its layered structure is very similar to that of graphite, it is called "white graphite".
But compared with graphite, hexagonal boron nitride has more stable physical and chemical stability. Its oxidation resistance at high temperature is very excellent, and it is an ideal thermal protection material for advanced composite materials such as carbon fiber; and more interestingly, most materials with excellent thermal conductivity generally also have ideal electrical conductivity, while hexagonal boron nitride also has very high thermal conductivity, but it is not conductive, and will have important value in functional applications such as heat dissipation of integrated circuit substrates. Therefore, obtaining and applying boron nitride whiskers is one of the important objects of attention in materials science and engineering.
Boron nitride is a solid material composed of boron and nitride, with the characteristics of high hardness, high melting point and not easy to oxidize. Its molar hardness is higher than that of diamond and silicon carbide, and it is widely regarded as one of the hardest ceramic materials. Therefore, Boron Nitride Whisker is also one of the most important chemical materials.
Boron nitride has very high hardness and wear resistance, and can be made into high-hardness cutting tools for processing high-hardness materials. Due to its high hardness, boron nitride tools are more wear-resistant and have a longer service life than tools made of other materials.
In the process of making ceramic materials, Boron Nitride Whisker can be used as a ceramic raw material additive, which can enhance the hardness and wear resistance of ceramic materials, improve their performance and make them more durable.
The high hardness and high melting point of boron nitride make it an ideal high-temperature coating material. In high temperature environments, boron nitride does not lose hardness and stability, and can provide superior protection to prevent oxidation or corrosion of the surface of parts.
Boron Nitride Whisker can also be used to manufacture electronic components such as light-emitting diodes (LEDs) and solar cells. It can be used as a semiconductor material with excellent electrical and thermal properties, which can improve the efficiency and stability of these components.
Boron Nitride Whisker is a very important material with the characteristics of high hardness, high melting point and not easy to oxidize. It has a wide range of applications in cutting tools, ceramic materials, coatings and electronic components. With the continuous development of technology, its application prospects will become more and more broad.
