摘要
La-Ni-Al合金吸氢后严重粉化,在使用中对设备产生有害影响,使用范围受到很大限制。由于La-Ni-Al合金粉压制成型后,经过吸放氢后依然粉化,因而先对合金粉表面镀覆铜后再压制成型,通过对成型试样和未进行加工处理的试样进行吸氢性能测试,绘制La-Ni-Al合金化学镀铜压制成型前后的PCT曲线。研究La-Ni-Al镀铜成型试样多次吸放氢后的吸氢量及膨胀数据,对比试验结果,压制成型的La-Ni-Al合金抗粉化性能显著提高,使用方便,有效地消除了对设备的危害。
Hydrogen storage alloy La - Ni - A1, which would be broken up to fines seriously after the cycles of hydrogen absorption and desorption, affected the instrument negatively and the extend was restricted in use. With the hope of eliminating this influence, we have coated the powder with Cu before pressing and forming,and then, made a measurement and compare upon the absorption performance between this powder before and after coating. It shows that, with the coating treatment, the La- Ni- A1 alloy can withstand many cycles without producing fines as before.
出处
《湖南有色金属》
CAS
2008年第3期21-23,69,共4页
Hunan Nonferrous Metals
