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由包头稀土研究院与包头钢铁学院承担的国家科技部“九五”攻关项目“稀土磁致冷技术开发”课题(2000.1～2002.12)在国家科技部及有关部门的大力支持下进展顺利,并取得了阶段性成果。 磁致冷技术是利用磁场工作物质(磁性材料)电子的自旋取向空间分布的有序度发生变化而引起熵变S来实现的。即磁致冷材料等温磁化时向外界放出热量,而绝热退磁时从外界吸收热量。与传统的气体制冷技术相比,它是一种绿色的制冷技术,具有效率高、耗能低、无污染等优点。目前,磁致冷技术
The project “Development of Rare Earth Magnetism Refrigeration Technology” of the “95th Five-Year Plan” Project of Ministry of Science and Technology undertaken by Baotou Rare Earth Research Institute and Baotou Iron and Steel Institute (2000.1 ~ 2002.12) progressed well under the strong support of the Ministry of Science and Technology and relevant departments and obtained The stage results. Magnetic refrigeration technology is the use of the magnetic field of work (magnetic material) electronic spin orientation spatial distribution of the degree of change caused by the entropy change S to achieve. That is, when the magnetic refrigeration material isothermal magnetization emits heat to the outside world, while absorbing heat from the outside when adiabatic demagnetization. Compared with the traditional gas refrigeration technology, it is a green refrigeration technology, with high efficiency, low energy consumption, pollution-free and so on. At present, magnetic refrigeration technology