Abstract
Al-15Bi composite water-reactive materials were prepared by hot pressing sintering with mechanically mixed powder of Al and Bi as raw materials. The microstructure, water-reactive properties and reaction products of the materials were analyzed and characterized. The effects of temperature and KCl concentration on the reaction rate between Al-15Bi and water were analyzed, meanwhile the water reaction mechanism of Al-15Bi was explored, and the reaction model was established. The results indicate that the Al-Bi composite material with dense and uniform structure can be prepared at 550 ℃ and 40 MPa for 1 h. Bi in the material is distributed in a network at the interface of Al particles. The hydrogen production rate can be improved greatly by increasing the temperature. Al and Bi can form micro-galvanic cells in water, thereby promoting the reaction of Al and water.
| Translated title of the contribution | Microstructure and Water Reactivity of Hot Pressing Sintered Al-Bi Composite Water-reactive Materials |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 1434-1439 |
| Number of pages | 6 |
| Journal | Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys |
| Volume | 42 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 20 Nov 2022 |
