What is Wurtzite boron nitride? Wurtzite boron nitride (w-BN) has attracted intense interest due to its outstanding properties and potential applications. W-BN is a fascinating superhard material with a hardness next to the diamond (1–3), rendering it a candidate material to replace it. W-BN is also a promising III-V group wide-bandgap material for advanced electronic devices because it has many properties superior to GaN and AlN, such as a wider band gap, higher thermal conductivity, and more significant spontaneous polarization. Since the first synthesis of w-BN in the 1960s, extensive efforts have been devoted to the fabrication of high-quality w-BN samples, the in-depth understanding of phase transformations between BN polymorphs, and the theoretical investigation of the deformation mechanisms of w-BN. Unfortunately, such efforts are greatly hampered by the technical difficulties in stabilizing w-BN at atmospheric pressure.
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The w-BN phase obtained by the direct conversion The w-BN phase obtained by the direct conversion of hexagonal BN (h-BN) at high pressure tends to recover to the h-BN phase after releasing pressure, and only a tiny amount of w-BN can maintain its structure (12, 15, 18, 19). The prevailing synthesis method of w-BN is the shock compression of h-BN, which can only produce w-BN fine powders with micrometer grain size, and other BN impurities are readily introduced (7, 13, 20, 21). Synthesis of w-BN bulk crystals is challenging due to insufficient efficient approaches for stabilizing the metastable high-pressure phase. Since w-BN is a thermodynamically metastable phase, w-BN single crystals cannot be fabricated by a dissolution and precipitation process. When BN crystals were recrystallized by a solvent system, only h-BN or cubic BN (c-BN) crystals were grown at stable pressure and temperature conditions. Similar features were known in the carbon system as a hexagonal diamond (h-diamond). However, w-BN can be partially quenchable after being transformed from h-BN, while h-diamond will almost totally transform into graphite. This known feature has yet to be reasonably explained.
Fabricating w-BN bulk crystals In general, fabricating w-BN bulk crystals and revealing the stabilization mechanism can significantly contribute to materials science in the following aspects. First, this study has unambiguously demonstrated that the 3D networks of planar defects can stabilize the w-BN to the atmospheric pressure via retarding the w-BN to h-BN phase transformation. This finding contrasts the common knowledge that the crystal defects in materials will facilitate the occurrence of phase transformations, contributing significantly to phase transformation theory.
Price of Wurtzite boron nitride Wurtzite boron nitride particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Wurtzite boron nitride. A large amount of large amount will be lower. The Price of Wurtzite boron nitride is on our company's official website.
Wurtzite boron nitride supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Wurtzite Boron Nitride, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Wurtzite Boron Nitride, you are welcome to contact us or inquire at any time.
