| 1. | Zone melting recrystallization
区域熔化再结晶 |
| 2. | Zone melting without crucible
无坩埚区域熔融 |
| 3. | Zone melting with laser
激光区域熔化 |
| 4. | Cage zone melting
笼式区域熔化 |
| 5. | The connection of microstructure and floating zone melting process was studied
利用ebfzm法，本文研究了区熔工艺和凝固组织之间的关系。 |
| 6. | The technological parameters such as the diameter of quartz tube , the dimension of materials and parameters in zone melt are analyzed
对于石英管的直径、装入石英管块材的大小及区熔工艺参数等因素进行了分析。 |
| 7. | On account of the solidification character of rare earth alloys , the zone melting is improved by putting the alloys prepared by arc - melting into the quartz tube , then melting
鉴于稀土化合物凝固结晶的特点，对区熔法进行了改进，将电弧炉熔炼好的样品装入石英管中，封石英管后在区熔设备上进行区熔。 |
| 8. | The result indicated that the two phases in eutectic had difficulty in growing regularly on condition that the floating zone melting rate was in the scope of 0 ~ 0 . 3mm / min . the matrix phase was directional grown and the other phase was grown with no order
结果表明，在区熔速率r = 0 0 . 3mm min范围内两相很难形成规则共晶，其中基体相定向生长，第二相混乱生长，弥散分布于基体中。 |
| 9. | In this paper , an ingot of niobium - niobium silicide based in - situ composites ( rmics ) was prepared by arc melting process , and nb - nb3si / nb5si3 in - situ composites with a uniformly orientated microstructure were produced in a high temperature gradient directional solidification apparatus named electron beam floating zone melting ( ebfzm ) . the relationships between the processing parameters and the characteristics of the solidified microstructure have been investigated . the influence of the microstructure on the mechanical properties has been revealed and the rupture mechanism at room temperature has been discussed
本文采用真空电弧自耗熔炼法制备了铌?硅基rmics材料的母合金锭，并采用电子束区熔( ebfzm )高温度梯度定向凝固装置制备了定向效果良好的nb - nb _ 3si nb _ 5si _ 3共晶自生复合材料，并对其定向凝固工艺参数和组织之间的对应规律、组织特性进行了研究，探讨了凝固组织对室温力学性能的影响及其断裂机制。 |
| 10. | Therefore , in this paper , two directional solidification methods , czochralski method and electron - beam floating zone melting method , were used to obtain such material . the directional solidifition microstructures of si - tasi2 system was performed using neophot - 1 , amray - 100b sem and jem - 2000cx tem analysis technique
本文采用切克拉斯基法( cz法)和电子束区熔法( ebfzm )两种定向凝固方法制备该共晶自生复合材料；借助金相技术、电镜技术、图象处理技术等多种分析测试手段，考察了si - tasi _ 2共晶定向凝固组织和及其相应的工艺规范。 |
