INVESTIGATION OF STRUCTURE DEFECTS IN BORON PYRONITRIDE BY POSITRON ANNIHILATION AND X-RAY STRUCTURE ANALYSIS.

Abstract

X-ray structure analysis and positron annihilation were used in an investigation of polycrystalline mesographite pyrolytic boron nitride. Changes in the lattice period c were used to calculate the approximate dimensions of the loosely packed layers between grains. Estimates were obtained of the phenomenological annihilation parameters. These parameters were then used as the basis for suggesting that positronium states are localized in intergranular pores and to determine the size of these pores.

Original language	English
Pages (from-to)	1914-1916
Number of pages	3
Journal	Soviet Physics, Solid State (English translation of Fizika Tverdogo Tela)
Volume	26
Issue number	10
Publication status	Published - Oct 1984

ASJC Scopus subject areas

Engineering(all)

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INVESTIGATION OF STRUCTURE DEFECTS IN BORON PYRONITRIDE BY POSITRON ANNIHILATION AND X-RAY STRUCTURE ANALYSIS. / Aref'ev, K. P.; Boev, O. B.; Vorob'ev, S. A.; Dergaleva, G. A.; Lopatin, V. V.; Prib, V. E.; Surov, Yu P.

In: Soviet Physics, Solid State (English translation of Fizika Tverdogo Tela), Vol. 26, No. 10, 10.1984, p. 1914-1916.

Research output: Contribution to journal › Article › peer-review

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title = "INVESTIGATION OF STRUCTURE DEFECTS IN BORON PYRONITRIDE BY POSITRON ANNIHILATION AND X-RAY STRUCTURE ANALYSIS.",

abstract = "X-ray structure analysis and positron annihilation were used in an investigation of polycrystalline mesographite pyrolytic boron nitride. Changes in the lattice period c were used to calculate the approximate dimensions of the loosely packed layers between grains. Estimates were obtained of the phenomenological annihilation parameters. These parameters were then used as the basis for suggesting that positronium states are localized in intergranular pores and to determine the size of these pores.",

author = "Aref'ev, {K. P.} and Boev, {O. B.} and Vorob'ev, {S. A.} and Dergaleva, {G. A.} and Lopatin, {V. V.} and Prib, {V. E.} and Surov, {Yu P.}",

year = "1984",

month = oct,

language = "English",

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AU - Aref'ev, K. P.

AU - Boev, O. B.

AU - Vorob'ev, S. A.

AU - Dergaleva, G. A.

AU - Lopatin, V. V.

AU - Prib, V. E.

AU - Surov, Yu P.

PY - 1984/10

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N2 - X-ray structure analysis and positron annihilation were used in an investigation of polycrystalline mesographite pyrolytic boron nitride. Changes in the lattice period c were used to calculate the approximate dimensions of the loosely packed layers between grains. Estimates were obtained of the phenomenological annihilation parameters. These parameters were then used as the basis for suggesting that positronium states are localized in intergranular pores and to determine the size of these pores.

AB - X-ray structure analysis and positron annihilation were used in an investigation of polycrystalline mesographite pyrolytic boron nitride. Changes in the lattice period c were used to calculate the approximate dimensions of the loosely packed layers between grains. Estimates were obtained of the phenomenological annihilation parameters. These parameters were then used as the basis for suggesting that positronium states are localized in intergranular pores and to determine the size of these pores.

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