An apparatus for in situ high temperature pretreatment of materials and measurement of their magnetic properties at cryogenic temperatures
| Autor: | Nalini Krishnankutty, M. Albert Vannice, L. N. Mulay |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Cryostat
Controlled atmosphere Materials science Field (physics) Mechanical Engineering Analytical chemistry Condensed Matter Physics Magnetic susceptibility law.invention Magnetization symbols.namesake Mechanics of Materials law Faraday effect symbols Measuring instrument General Materials Science Faraday cage |
| Zdroj: | Materials Science and Engineering: B. 15:115-120 |
| ISSN: | 0921-5107 |
| DOI: | 10.1016/0921-5107(92)90042-8 |
| Popis: | An easy to use apparatus with high sensitivity for magnetic measurements is described that incorporates a unique dual purpose cryostat/heater, capable of in situ pretreatments at pressures up to 1 atm and temperatures up to 700 K. Magnetization measurements can be made at temperatures down to 100 K, either under vacuum or in a selected ambient gas, in the same cryostat with fields up to 1.7 T (17 kG). Techniques for measuring field profiles of the 23 cm diameter gradient pole caps are discussed along with the absolute and relative methods for measuring the magnetic susceptibility or magnetization. This system, based on the Faraday method, is particularly suitable for catalytic materials which need to be pretreated prior to magnetic measurements. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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