趋势和热稳定性分析
(湖南大学应用物理系, 长沙 410082)
摘 要: 用X射线衍射(XRD)和差示扫描量热(DSC)法研究了B含量对化学镀Fe-Mo-B合金非晶形成能力和热稳定性的经验判据,并从结构化学方面进行了分析。结果表明,适当的金属Mo含量可使合金镀层非晶形成能力和热稳定性得到改善。 在6.6%~24.5%B,11.3% ~16.9%Mo, 7.4%~73.6%Fe的成分范围内获得完全非晶镀层。并用非晶形成的经验判据对实验结果进行了分析讨论。
关键字: Fe-Mo-B合金镀层 玻璃形成能力 化学镀 热稳定性
(Department of Applied Physics, Hunan University, Changsha 410082, P. R. China)
Abstract:Effect of the metalloid element B on the glass forming ability and thermal stability for electroless plating Fe-Mo-B alloy deposits has been studied by X-ray diffraction analysis and differential scanning calorimetry, which is analized by structure chemistry theory. The glass forming and thermal stability could be improved by adding element Mo. It has been found that the range of amorphous formation is 6.6%~24.5%B, 11.3%~16.9% Mo and 57.4%~73.6% Fe for the Fe-Mo-B alloy deposits, which is larger than that for the electroless plating Fe-B alloy deposits. The experimental results have been analyzed and discussed by the empirical criteria of the glass forming ability and thermal stability.
Key words: Fe-Mo-B alloy deposits glass forming ability electroless plating
thermal stability