2000
DOI: 10.15760/etd.1356
|View full text |Cite
|
Sign up to set email alerts
|

The Tensile Strength of Liquid Helium Four

Abstract: It is well known that most liquids exhibit a tensile strength which is much smaller in magnitude than the tensile strength predicted by homogeneous nucleation theory. This lack of agreement is usually attributed to the difficulty of preparing liquid samples free from foreign gases which act as heterogeneous nucleation sites.Liq"lid heliurr. occupies a unique place among liquids for tensile strength measurements because all fcreign gases are frozen OLt at liquid helium temperatures. LIST OF FIGURESAt Equilibr… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

1
4
0

Year Published

2000
2000
2016
2016

Publication Types

Select...
1
1

Relationship

0
2

Authors

Journals

citations
Cited by 2 publications
(5 citation statements)
references
References 36 publications
1
4
0
Order By: Relevance
“…This kind of signal was also observed by Nissen (1988Nissen ( , 1989 in his study of the tensile strength of liquid helium. He defined the signal as the characteristic signal of the homogeneous nucleation.…”
Section: The Design Of the High Pressure Dewarsupporting
confidence: 74%
See 3 more Smart Citations
“…This kind of signal was also observed by Nissen (1988Nissen ( , 1989 in his study of the tensile strength of liquid helium. He defined the signal as the characteristic signal of the homogeneous nucleation.…”
Section: The Design Of the High Pressure Dewarsupporting
confidence: 74%
“…Since a short ultrasonic pulse is focused onto a very small volume of the bulk liquid, the possibility of heterogeneous nucleation caused by the impurities or walls can be greatly reduced. We adopt the method developed by Nissen (1988Nissen ( , 1989) to obtain the measurement of the tensile strength of liquid nitrogen. Although he used a hemispherical transducer, we will use ultrasonic transducers with a small aperture angle since the theories concerning this kind of transducer are well developed.…”
Section: Calculation Of Pressure At the Focus From Debye's Theorymentioning
confidence: 99%
See 2 more Smart Citations
“…Nevertheless, homogeneous nucleation may be observed even in the presence of heterogeneous cavitation centers if the volume of the liquid being stretched and the time of its transition into a metastable state (the shock phase-transition regime 10 ) are considerably reduced. For this purpose focused acoustic fields may be employed, which make it possible to transfer the cavitation zone from the walls of the piezoelectric transducer by reducing its volume to (λ/2) 3 , where λ is the length of the acoustic wave 11,12 and the wave of reflection from the liquid free surface. 13,14 In the present work the pulse method of superheating a liquid on a thin platinum heater in a tension wave 15,16 has been used to investigate the tensile stress of liquid nitrogen.…”
mentioning
confidence: 99%