| 1. | Research and development in strengthening and toughening of magnesium alloys
新型稀土阻燃镁合金研究 |
| 2. | Strengthening and toughening of dental porcelain fused to metal by nano - sized al2o
纳米氧化铝对牙科烤瓷材料的强化与增韧 |
| 3. | Strengthening and toughening mechanisms of the microalloying non - quenched and tempered steel
微合金化非调质钢强韧化机理研究 |
| 4. | The results reveal the mechanism of strengthening and toughening forged white cast iron and provide the basic theory of plastic deformation of forged white cast iron
揭示了白口铸铁锻造强韧化的机理，从而为提高白口铸铁的强韧性提供了理论依据。 |
| 5. | Another research finds that the ball mechanic milling on high - cr alloy powders has obvious effects on strengthening and toughening of the material . it is an effective approach for the materials " strengthening and toughening
还发现，机械球磨合金粉末对高铬覆层材料的强化和韧化有明显作用，是实现材料强韧性的有效途经。 |
| 6. | However , as the content of nano - zno was over 3 % , the mechanic properties decreased contrarily . the results also showed that nano - zno without surface treatment had no effect on strengthening and toughening the composites
而未经衣曲处理的纳米氧化锌粉体则小能增强和增韧nhi苞复合材料，而是明显降低复合材料的力学性能。 |
| 7. | In this paper , the attempt was made in sic nano - particle reinforcing al2o3 - zro2 . the methods of dispersion , molding , sintering were investigated in detail for composites , and the mechanisms of strengthening and toughening were studied
本论文研究的纳米sic颗粒添加到亚微米zro2复合亚微米al2o3陶瓷，是基于单一纳米颗粒添加的一种多相复合新尝试。 |
| 8. | The micromechanisms of fracture in engineering materials have been studied in this thesis , with particular emphasis on the dislocations behavior in the front of crack tip and the processes of crack nucleation and propagation on nanometer scale . the relation between the microprocesses of fracture and the macromechanical behaviors were investigated , which will be helpful to the strengthening and toughening of engineering materials
本文首先对材料断裂文献进行综述，了解断裂微观机理研究的过去成就、现状和发展，确定本文研究的内容为工程材料断裂的微观机理，侧重裂尖微区位错行为和纳米尺度上微裂纹形核与扩展过程及微观组织的影响，断裂微观过程与宏观力学行为的关系，为工程材料的强韧化提供理论依据。 |
| 9. | The inserting method and properties of the composite materials in consist of omt and poly ( styrene - butyl acrylate ) had been researched ; the ultra - fine organic rigid particles crosslinked polystyrene ( xps ) has been synthesized by emulsion polymerization , the effect of the synthesis process on the size of organic rigid particles was discussed . the cause of the increasing mechanical properties of pp composite materials , which were strengthened and toughened with organic rigid particles and elastomer , had been investigated . the results of studying viscosity and precipitate height of sio2 nano - particles suspension showed that the sio2 nano - particles are very good dispersed by dp270 or cat 639w dispersant
通过粘度法和沉降法测定结果的一致性，说明分散剂dp270和cat639w对sio _ 2纳米粒子有较好的分散性， dp270的最佳用量为0 . 2时悬浮液粘度从35 . 1mpa ? s降为23 . 3mpa ? s ， cat639w最佳用量为0 . 4时悬浮液的粘度从35 . 1mpa ? s降为23 . 1mpa ? s ；通过研究分散剂存在下纳米粒子的苯丙乳液聚合动力学，发现纳米粒子的存在对乳液聚合有一定的缓聚作用，并讨论了乳化体系、温度、引发剂、表面处理剂以及纳米粒子用量对聚合的影响。 |
