porous matrix meaning in Chinese
多孔基体
Examples
- Sc shows no diffusion during heated between 800 ? to 1290 ? . analysis the result of all the experiments above , we can know porous matrix , nanometer re oxide particles and fine crystal structure can accelerate the active matter diffusion to the surface , and do good effect to the emission performance of cathode
阴极表面的空隙有利于活性物质的扩散；纳米尺度的稀土氧化物自身能量高，易于克服扩散激活能而进行扩散；发射过程中阴极表面的微晶化使表层晶界增多，活性物质扩散通道增多，利于扩散进行。