29Si MASNMR spin-lattice relaxation study of α-, β-, and amorphous silicon nitride

Hirotaka Fujimori, Naoya Sato, Koji Ioku, Seishi Goto, Tetsuo Yamada

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The spin-lattice relaxation times, T1, in α-, β-, and amorphous Si3N4 have been obtained for the first time, using a multiple-pulse saturation recovery method. The saturation recovery of the 29Si magnetization follows exponential behavior under magic-angle spinning conditions, within the limits of experimental error. A rather wide dispersion of T1 values is observed for the phases of Si3N4: 284±29 min (-46.686 ppm) and 260±23 min (-48.812 ppm) for the α-phase, 36±4 min for the β-phase, and 11±1 min for the amorphous phase, assuming an exponential recovery. The values obtained for the exponent in the power-law fitting are 0.599(9) (-46.686 ppm) and 0.61(1) (-48.812 ppm) for the α-phase, 0.52(2) for the β-phase, and 0.53(3) for the amorphous phase.

Original languageEnglish
Pages (from-to)2251-2254
Number of pages4
JournalJournal of the American Ceramic Society
Volume83
Issue number9
Publication statusPublished - 2000 Sep
Externally publishedYes

Fingerprint

Spin-lattice relaxation
Amorphous silicon
Silicon nitride
Recovery
Magic angle spinning
Relaxation time
Magnetization
silicon nitride

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

29Si MASNMR spin-lattice relaxation study of α-, β-, and amorphous silicon nitride. / Fujimori, Hirotaka; Sato, Naoya; Ioku, Koji; Goto, Seishi; Yamada, Tetsuo.

In: Journal of the American Ceramic Society, Vol. 83, No. 9, 09.2000, p. 2251-2254.

Research output: Contribution to journalArticle

Fujimori, Hirotaka ; Sato, Naoya ; Ioku, Koji ; Goto, Seishi ; Yamada, Tetsuo. / 29Si MASNMR spin-lattice relaxation study of α-, β-, and amorphous silicon nitride. In: Journal of the American Ceramic Society. 2000 ; Vol. 83, No. 9. pp. 2251-2254.
@article{a413269b72d24314b308aa5535cdf748,
title = "29Si MASNMR spin-lattice relaxation study of α-, β-, and amorphous silicon nitride",
abstract = "The spin-lattice relaxation times, T1, in α-, β-, and amorphous Si3N4 have been obtained for the first time, using a multiple-pulse saturation recovery method. The saturation recovery of the 29Si magnetization follows exponential behavior under magic-angle spinning conditions, within the limits of experimental error. A rather wide dispersion of T1 values is observed for the phases of Si3N4: 284±29 min (-46.686 ppm) and 260±23 min (-48.812 ppm) for the α-phase, 36±4 min for the β-phase, and 11±1 min for the amorphous phase, assuming an exponential recovery. The values obtained for the exponent in the power-law fitting are 0.599(9) (-46.686 ppm) and 0.61(1) (-48.812 ppm) for the α-phase, 0.52(2) for the β-phase, and 0.53(3) for the amorphous phase.",
author = "Hirotaka Fujimori and Naoya Sato and Koji Ioku and Seishi Goto and Tetsuo Yamada",
year = "2000",
month = "9",
language = "English",
volume = "83",
pages = "2251--2254",
journal = "Journal of the American Ceramic Society",
issn = "0002-7820",
publisher = "Wiley-Blackwell",
number = "9",

}

TY - JOUR

T1 - 29Si MASNMR spin-lattice relaxation study of α-, β-, and amorphous silicon nitride

AU - Fujimori, Hirotaka

AU - Sato, Naoya

AU - Ioku, Koji

AU - Goto, Seishi

AU - Yamada, Tetsuo

PY - 2000/9

Y1 - 2000/9

N2 - The spin-lattice relaxation times, T1, in α-, β-, and amorphous Si3N4 have been obtained for the first time, using a multiple-pulse saturation recovery method. The saturation recovery of the 29Si magnetization follows exponential behavior under magic-angle spinning conditions, within the limits of experimental error. A rather wide dispersion of T1 values is observed for the phases of Si3N4: 284±29 min (-46.686 ppm) and 260±23 min (-48.812 ppm) for the α-phase, 36±4 min for the β-phase, and 11±1 min for the amorphous phase, assuming an exponential recovery. The values obtained for the exponent in the power-law fitting are 0.599(9) (-46.686 ppm) and 0.61(1) (-48.812 ppm) for the α-phase, 0.52(2) for the β-phase, and 0.53(3) for the amorphous phase.

AB - The spin-lattice relaxation times, T1, in α-, β-, and amorphous Si3N4 have been obtained for the first time, using a multiple-pulse saturation recovery method. The saturation recovery of the 29Si magnetization follows exponential behavior under magic-angle spinning conditions, within the limits of experimental error. A rather wide dispersion of T1 values is observed for the phases of Si3N4: 284±29 min (-46.686 ppm) and 260±23 min (-48.812 ppm) for the α-phase, 36±4 min for the β-phase, and 11±1 min for the amorphous phase, assuming an exponential recovery. The values obtained for the exponent in the power-law fitting are 0.599(9) (-46.686 ppm) and 0.61(1) (-48.812 ppm) for the α-phase, 0.52(2) for the β-phase, and 0.53(3) for the amorphous phase.

UR - http://www.scopus.com/inward/record.url?scp=0034274756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034274756&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0034274756

VL - 83

SP - 2251

EP - 2254

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 9

ER -