BULK SUPERHEATING OF SOLID KBR AND CSBR WITH SHOCK-WAVES

被引：49
作者：
BONESS, DA [1 ]
BROWN, JM [1 ]
机构：
[1] UNIV WASHINGTON,GRAD PROGRAM GEOPHYS,SEATTLE,WA 98195
来源：
PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 18期
关键词：
D O I：
10.1103/PhysRevLett.71.2931
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have observed bulk solid superheating of the order of 650 K and persisting for DELTAt > 500 ns in shocked single crystals of KBr at 22 to 33 GPa and CsBr at 30 to 42 GPa. These experiments use nanosecond-resolution, twelve-channel optical pyrometry to measure the temperature of the advancing shock front in the crystal, and the rarefaction-overtake technique to simultaneously measure sound velocity. This novel combination of measurements allows a virtually continuous determination of Hugoniot temperature versus pressure or density for transparent crystals.
引用
收藏
页码：2931 / 2934
页数：4
相关论文
共 25 条
[11]  
KORMER SB, 1969, SOV PHYS JETP-USSR, V28, P852
[12]   OPTICAL STUDY OF CHARACTERISTICS OF SHOCK-COMPRESSED CONDENSED DIELECTRICS [J].
KORMER, SB .
SOVIET PHYSICS USPEKHI-USSR, 1968, 11 (02) :229-+
[13]  
KORMER SB, 1965, ZH EKSP TEOR FIZ, V21, P689
[14]  
KURZ H, 1987, MATER RES SOC S P, V74, P3
[15]   SHOCK TEMPERATURE-MEASUREMENTS IN MG2SIO4 AND SIO2 AT HIGH-PRESSURES [J].
LYZENGA, GA ;
AHRENS, TJ .
GEOPHYSICAL RESEARCH LETTERS, 1980, 7 (02) :141-144
[16]   SHOCK TEMPERATURES OF SIO2 AND THEIR GEOPHYSICAL IMPLICATIONS [J].
LYZENGA, GA ;
AHRENS, TJ ;
MITCHELL, AC .
JOURNAL OF GEOPHYSICAL RESEARCH, 1983, 88 (NB3) :2431-2444
[17]  
McQueen R.G., 1970, HIGH VELOCITY IMPACT, P244
[18]   OPTICAL TECHNIQUE FOR DETERMINING RAREFACTION WAVE VELOCITIES AT VERY HIGH-PRESSURES [J].
MCQUEEN, RG ;
HOPSON, JW ;
FRITZ, JN .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1982, 53 (02) :245-250
[19]  
MCQUEEN RG, UNPUB
[20]   MELTING CURVES OF POTASSIUM HALIDES AT HIGH PRESSURES [J].
PISTORIUS, CW .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1965, 26 (09) :1543-+
123