Nature of the real structure of graphite-like BN and its transformation into a wurtsite modification under impact compression

Journal Article · Wed Mar 01 00:00:00 EST 1995 · Powder Metallurgy and Metal Ceramics

DOI:https://doi.org/10.1007/BF00559537· OSTI ID:237607

Kurdyumov, A V; Zelyavskii, V B; Ostrovskaya, N F ^[1]

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1. Institute of Materials Science Problems, Kiev (Ukraine); and others

The dependence of the interlayer distance d on the degree of unidimensional disorder {gamma} in graphite-like BN was determined. It was established that d = 0.33273 {plus_minus} 0.00006 nm at 20{degrees} in the perfectly ordered structure ({gamma}=O); the value of d increased uniformly with increase of {gamma}, and at {gamma} = 1 it equals 0.343 {plus_minus} 0.001 nm. It was also established that the yield of wurtsite phase produced by impact compression of the graphite-like modification sharply decreases with increase of {gamma}, and for {gamma} {ge} 0.2 it becomes equal to zero. This result is explained in terms of the nature of martensitic transformatons in layered structures.

• Sponsoring Organization: USDOE
• OSTI ID: 237607
• Journal Information: Powder Metallurgy and Metal Ceramics, Vol. 33, Issue 9-10; Other Information: PBD: Mar 1995; TN: Translated from Poroshkovaya Metallurgiya; Nos. 9-10, 62-66(Sep-Oct 1994)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
BORON NITRIDES
IMPACT STRENGTH
COMPRESSION
MATHEMATICAL MODELS
PHASE TRANSFORMATIONS
GRAIN SIZE