Plasma characteristics of the discharge produced during mechanoluminescence

被引：15

作者：

Eddingsaas, Nathan C. ^{[1
]}

Suslick, Kenneth S. ^{[1
]}

机构：

[1] Univ Illinois, Sch Chem Sci, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.99.234301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The conditions during light emission from the fracture of solids have been difficult to determine because such mechanoluminescence (ML) is usually weak. When ML is produced by acoustic cavitation of a liquid slurry of resorcinol crystals, however, we observe bright light emission, which makes it possible to measure plasma conditions by emission spectra: a bimodal heavy atom emission temperature profile is observed with 405 +/- 22 K (for 80% of emitting CH) and 4015 +/- 730 K (for 20%), with an electron density and energy of 1.3 +/- 0.13 x 10(14) cm(-3) and similar to 3.5 eV (i.e., an effective T(e) similar to 41 000 K).

引用

页数：4

共 33 条

[11] INTERPARTICLE COLLISIONS DRIVEN BY ULTRASOUND [J].

DOKTYCZ, SJ ;

SUSLICK, KS .

SCIENCE, 1990, 247 (4946) :1067-1069

[12] Intense mechanoluminescence and gas phase reactions from the sonication of an organic slurry [J].

Eddingsaas, Nathan C. ;

Suslick, Kenneth S. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (21) :6718-+

[13] Light from sonication of crystal slurries [J].

Eddingsaas, Nathan C. ;

Suslick, Kenneth S. .

NATURE, 2006, 444 (7116) :163-163

[14]

GRIEM HR, 1974, SPECTRAL LINE BROADE, P36129

[15]

GRIEM HR, 1964, PLASMA SPECTROSCOPY, P36129

[16] IMPROVED STARK PROFILE CALCULATIONS FOR HYDROGEN LINES HALPHA HBETA HGAMMA AND HDELTA [J].

KEPPLE, P ;

GRIEM, HR .

PHYSICAL REVIEW, 1968, 173 (01) :317-+

[17] From ozone generators to flat television screens: history and future potential of dielectric-barrier discharges [J].

Kogelschatz, U ;

Eliasson, B ;

Egli, W .

PURE AND APPLIED CHEMISTRY, 1999, 71 (10) :1819-1828

[18] Optical diagnostics of atmospheric pressure air plasmas [J].

Laux, CO ;

Spence, TG ;

Kruger, CH ;

Zare, RN .

PLASMA SOURCES SCIENCE & TECHNOLOGY, 2003, 12 (02) :125-138

[19] Gas temperature measurement in CH4/CO2 dielectric-barrier discharges by optical emission spectroscopy [J].

Luque, J ;

Kraus, M ;

Wokaun, A ;

Haffner, K ;

Kogelschatz, U ;

Eliasson, B .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (08) :4432-4438

[20] RELATIVE INTENSITY OF HELIUM SPECTRAL LINES AS A FUNCTION OF ELECTRON TEMPERATURE AND DENSITY [J].

MEWE, R .

BRITISH JOURNAL OF APPLIED PHYSICS, 1967, 18 (01) :107-+

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