Al-Fe-Based Sound-Absorbing Materials by Self-Propagating High-Temperature Synthesis

作者：Li Haohan^*; Wang Zhou; Murotani Takayuki; Zhao Minghua; Fu Chuanqi; He Xiang; Li Bin

来源：Rare Metal Materials and Engineering, 2010, 39: 146-149.

• self-propagating high-temperature synthesis
• Al-Fe-based sound-absorbing materials
• absorption coefficient

Al-Fe sound-absorbing material was produced by self-propagating high-temperature synthesis. The obtained materials were characterized by SEM and XRD. And the absorption coefficient was tested with standing wave pipe method. The experimental results show that the porosity and the absorption coefficient of the Al-Fe sound-absorbing material increase with the content of NaCl and anhydrous K(2)CO(3) increasing; the acoustic properties of the Al-Fe sound-absorbing material in which NaCl was taken as pore former are higher than those using K(2)CO(3) as pore former; there are no residue of Al and Fe after the reaction, because all turned into Al-Fe intermetallic compound. NaCl and anhydrous K(2)CO(3) have been fully dissolved after ultrasonic cleaning.

• 出版日期2010-6
• 单位大连大学