The first contains a fine iron powder, salt, and water in a pouch that is permeable to air. When it is exposed to air, the iron begins to rust. This rusting process produces heat. The second contains ...

In a recent study published in the journal Advanced Powder Materials, the traditional powder metallurgy compaction ... brake disks were prepared using chemical vapor infiltration and melt ...

The researchers concluded their study by offering math models to show that their process could be an economically viable way to recycle textiles. More information: Erha Andini et al, Chemical ...