기계적으로 합금처리한 Mg-18wt.%Ni 혼합물의 수소저장특성이 조사되었다. 1h, 3h, 그리고 6h 동안 기계적으로 합금처리한 혼합물들 중에서 6h동안 기계적으로 합금처리한 혼합물(MA 6h sample)이 가장 좋은 활성화, 수소화물 형성.분해 특성을 보인다. 수소화물 형성.분해 cycling을 시킴에 따라 Mg2Ni상이 형성된다. MA 6h sample은 비교적 쉽게 활성화되며, 순수한 Mg나 Mg-10wt.%Ni 합금보다 수소화물 형성속도가 높으나, Mg2Ni 합금보다는 수소화물 형성속도가 약간 낮다. MA 6h sample은 Mg2Ni 합금에 비해 낮은 수소화물 분해속도를 보이지만, 순수한 Mg나 Mg-25wt.%Ni 합금보다는 높은 수소화물 분해속도를 보인다. MA 6h sample은 순수한 Mg나 다른 합금들보다 큰 수소저장용량을 가지고 있다.

With the recent increased awareness of underground water as a resource and detection of radioactive material called radon in underground, underground waterproofing system is newly regard as not only ensuring stability and durability of the structure but also preserving underground water, safety of employee working underground structure, protecting of facilities and comfortable use. For these reasons, constructing industry have highly demanded feasible underground waterproofing system that responding long-life and high-performance new material and developing waterproof performance evaluation techniques. Therefore, this study attempts to build environmental responding waterproof system with high adhesive sealant material and setting a manual of field application in waterproofing construction technique.

Underground material and to secure any other appropriate waterproofing method for improving the workability experiments on non-woven fabric weight is selected. As a result, the appropriate non-woven fabric weight of 140 g/㎡ was confirmed.