✦ LIBER ✦

A continuous demagnetization refrigerator operating near 2 K and a study of magnetic refrigerants

✍ Scribed by W.P. Pratt Jr; S.S. Rosenblum; W.A. Steyert; J.A. Barclay

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 507 KB
Volume: 17
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(77)90225-9

No coin nor oath required. For personal study only.

✦ Synopsis

A prototype refrigerator using a demagnetization cycle has been designed and built to operate continuously, pumping heat from temperatures as low as 2. 10 K to a heat sink at 4 K. The device has pumped 0.2 War 2. 10 K and 0.5 War 2.75 K. Criteria have been developed for selecting magnetic refrigerant materials, and heat capacities of the most promising compounds were measured from 1K to 20 K in magnetic fields of up to 10.0 7".

📜 SIMILAR VOLUMES

A model for study and optimization of re

A model for study and optimization of real-operating refrigeration machines

✍ Camelia Petre; Michel Feidt; Monica Costea; Stoian Petrescu 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 110 KB 👁 1 views

A general model for the study and optimization of reversed cycle thermal machines with two heat reservoirs is presented. The model is based on the First and Second Laws of Thermodynamics, heat transfer equations at finite thermal source and sink capacities, and entropy generation terms in order to c

A 4 K to 20 K rotational-cooling magneti

A 4 K to 20 K rotational-cooling magnetic refrigerator capable of 1mW to > 1W operation

✍ J.A. Barclay 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 515 KB

The low-temperature, magnetic entropy of certain single-crystal paramagnetic materials, eg DyPO 4 changes dramatically as the crystal rotates in a magnetic field. A new magnetic refrigerator design based on the anisotropic nature of such materials is presented. The key advantages of the rotational-c

A comparative study of the magnetic and

A comparative study of the magnetic and electrical properties of perovskite oxides and the corresponding two-dimensional oxides of K2NiF4 structure

✍ C.N.R. Rao; P. Ganguly; K.K. Singh; R.A.Mohan Ram 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 715 KB

2D device-level simulation study on d.c.

2D device-level simulation study on d.c. and transient behavior of a SiGe-base HBT with a graded germanium profile in an ECL buffer operating at 77 K

✍ J.B. Kuo; T.C. Lu 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 387 KB

Investigation of the magnetic state of C

Investigation of the magnetic state of Cu(COOH)2.4H2O and Cu(COOH)2.4D2O at 4.2°K by a proton resonance study

✍ P. Van Der Leeden; P.A. Van Dalen; W.J.M. De Jonge 📂 Article 📅 1967 🏛 Elsevier Science ⚖ 244 KB

Continuous interleukin-2 and tumor-infil

Continuous interleukin-2 and tumor-infiltrating lymphocytes as treatment of advanced melanoma. A national biotherapy study group trial

✍ Robert O. Dillman; Neil M. Barth; Robert K. Oldham; Richard J. Cohen; David R. M 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 798 KB