𝔖 Bobbio Scriptorium
✦   LIBER   ✦

98/04144 An improved 3He refrigerator


Book ID
104286592
Publisher
Elsevier Science
Year
1998
Weight
202 KB
Volume
39
Category
Article
ISSN
0140-6701

No coin nor oath required. For personal study only.

✦ Synopsis


13 Space heating and cooling

98104134

Use of pitch-dolomite refractories in steelmaking ladles Chumarin, B. A. et al. Metalhug., 1997, (7) 13-16. (In Russian) Using pitch binder, lime-periclase refractories and the technology for lining ladles with the refractories were developed and implemented. The starting materials used were dolomite and coke pitch. A furnace for heat treatment of linings was developed and put into operation. The composition of the refractories fabricated was CaO 55.5-58.0%, MgO 35.0-37.0%, SiOa 2.5-3.0% and RsOs 3.0-4.0%, they had a density of 2.91-2.93 g/cm3 and a tensile strength of 40-60 MPa.


πŸ“œ SIMILAR VOLUMES


An improved 3He refrigerator
✍ G. Dall'Oglio; L. Martinis; G. Morgante; L. Pizzo πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 167 KB

The new generation of miniature 3He refrigerators, exploiting only the condensation and cryosorption cycles of 3He without moving parts and external links, represents the most common adopted solution in low temperature physics for cooling detectors such as bolometers at 0.3 K. The characteristics an

Improved 3He/4He refrigerator
✍ G Dall'Oglio; W Fischer; L Martinis; L Pizzo πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 146 KB

The characteristics and performance of an improved 3He/4He double stage refrigerator are presented. It is based on the same principle as the previous double stage refrigerator described in reference 1. A new geometry was used to overcome both the extra thermal input due to gas convection in the cond

An improved version of the He3ξ—ΈHe4 refri
✍ N.H. Pennings; K.W. Taconis; R. de Bruyn Ouboter πŸ“‚ Article πŸ“… 1974 πŸ› Elsevier Science 🌐 English βš– 146 KB

QT n -(4) L At the low temperature end, T = 4.2 K and (5) and the parameters p, A, X, Cp are constant and over a short length near the end the temperature variation can be taken as linear, which means that d2T -0 dx 2 From (3), (4), and (5) LI2pX 1 QT-Cp QL By differentiating dQT LI2 pX 1 dQL Cp Q~

Unusual features of an He3 refrigerator
✍ T. Claeson; T. Wingbro πŸ“‚ Article πŸ“… 1974 πŸ› Elsevier Science 🌐 English βš– 234 KB

adhesion. Four electrical leads were soldered on the contact areas with the pure indium.