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非晶粉末爆炸固結材料的磁性能

The Magnetic Properties of the Explosive Consolidating Amorphous Powder

  • 摘要: 本文研究了非晶粉末爆炸固結材料的磁性能.結果表明爆炸固結態樣品磁性能表現為Br/Bs、初始磁導率偏低,不易磁化到飽和,矯頑力偏高,經低溫短時保溫退火處理后樣品磁性能顯著提高,但過長的保溫時間、較高的退火溫度則會導致樣品晶化而造成磁后退,400℃×20min水淬為最佳退火工藝條件.

     

    Abstract: An investigation on magnetic properties of explosive consolidating amorphous powder is peiformed. The results indicate as follow:The consolidated specimen has weak magnetic properties such as low Br/Bs and μm, not easy to get saturation magnetization and high coercivity. The magnetic properties are raised obviously after short time annealing at 380℃ or 400℃. it can cause crystlization and magnetic retreat if annealing time is longer and temperature is higher. 400℃×20min and quenching by water is the best annealing process.

     

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