Synthesis of polycrystalline cubic boron nitride from hexagonal boron nitride after mechanical activation and modification with aluminum

V. T. Senyut; P. A. Vityaz; S. A. Kovalyova; E. I. Mosunov; I. V. Valkovich; T. V. Gamzeleva

doi:10.1134/S2075113316010238

Synthesis of polycrystalline cubic boron nitride from hexagonal boron nitride after mechanical activation and modification with aluminum

Autores: Senyut V.T.¹, Vityaz P.A.¹, Kovalyova S.A.¹, Mosunov E.I.¹, Valkovich I.V.¹, Gamzeleva T.V.²
Afiliações:
1. Joint Institute of Mechanical Engineering
2. Powder Metallurgy Institute
Edição: Volume 7, Nº 1 (2016)
Páginas: 53-57
Seção: Article
URL: https://journals.rcsi.science/2075-1133/article/view/204624
DOI: https://doi.org/10.1134/S2075113316010238
ID: 204624

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The effect of the thermochemical modification of hexagonal BN micropowders with aluminum on the synthesis of cubic-BN-based polycrystals after attritor processing is studied. It is found that the preliminary hBN_attr modification with aluminum reduces the parameters of the hBN → cBN phase transformation, namely, p and T, and results in the formation of a cBN-based material and refractory aluminum compounds with the finest structure.