变晶

8Co alloy have been studied by means of optical and transmission electron microscopy, X-ray diffraction, dilatometry, tensile tests and Vickers hardness measurements. The inherent factors responsible for the low shape memory effect of polycrystalline Fe-Mn-Si alloys have been revealed.

本文通过金相、透射电镜及X-射线衍射分析以及热膨胀、拉伸和硬度试验等手段研究了Fe-25.6Mn-5.1Si-4.1Ni-1.8Co合金中应力诱发γ→ε马氏体相变和形状记忆效应，揭示了引起多晶Fe-Mn-Si系记忆合金形状记忆效应低的内在因素。

Thixotropic behavior of semi-solid metal with non-dendritic structure was described briefly. The principle of the mesh structure agglomeration and disagglomeration of solid particles of semi-solid metal was discussed in detail.

简述了非枝晶结构半固态金属的触变行为并详细讨论了固相颗粒网状结构形成和破坏的原理。

So, on the basis of systemically study of summarizing the history of geothermometer, geobarometer, P-T paths, relationship between the metamorphic and deformation and the geochemistry of paracelsian, the author studied the character of mineralogy, petrology and geochemistry and discussed the basic geological problem, relationship between metamorphism and deformation.

鉴于此，在系统总结了PTt轨迹的研究历史及现状、地质温压计的进展、变质与变形作用和副变质岩石的地球化学研究的基础上，通过详细的矿物学、岩石学及地球化学的系统研究，就宝音图群的地质、地球化学特征、变斑晶生长相与变形的关系和变质作用演化进行了探讨。

It is shown that the non-crystallization of CaSiO_3 perovskite on decompression is a second transition of softening mode and kinetically controlled metastable process.

由MD模拟数据计算了CaSiO_3系统的红外光谱，分析这些数据可知钙钛矿型CaSiO_3解压缩非晶化是一个二阶软模相变。

The well known peaks at -40℃ and 160℃ are caused by twin boundaryrelaxation and martensitic transformation respectively.

除在-40及160℃附近是熟知的孪晶界面弛豫峰和马氏体相变峰P_？

The martensitic transformation in the ultra-fine particles of single crystal and the particles of polycrystalline structure.

4超细单晶颗粒和多晶结构颗粒中的马氏体相变。

The evolution of pro-eutectic austenite in semi-solid high chromium cast iron was studied by self-made slope sampling plate through metallographical image analysis system.

采用自行研制的倾斜取样板进行取样，并借助金相图像分析系统研究了半固态高铬铸铁先共晶奥氏体的衍变过程。

According to crystal shape and color, 4 types of zircon in metarhyolite have been identified: inherited, magmatic, metamophic and mixed zircon.

1根据锆石的晶形和颜色，将本区流纹岩中的锆石分为继承锆石、岩浆结晶锆石、变生锆石以及它们之间的混合锆石。

Based on the study on the monovariant eutectic reaction in Al-Mg〓Si-Mg〓Ge ternary system, possibility of using the composite compound as the strengthening phase was examined primarily.

通过对Al-Mg〓Si-Mg〓Ge系中单变度共晶反应的研究，对复合型化合物作强化相的可行性作了初步探讨。

Dielectric, piezoelectric and electrmechanical coupling properties of PZT and PSZT systems at high Zr content region were studied. The feature of high Kt and low Kp of PZT-based materials near F-AF phase boundary was exploited and examined, and electromachanical coupling anisotropy Kt/Kp is higher than that at the morphotropic phase boundary , Kt≥0.40, Kt/Kp≥3. 0. This phenomenon can be realized by electric field -induced AF-F phase transition and explained by coupling effect of two-sublattice in antiferroelectric unit cell.

研究了PZT和PSZT两个系统在高锆区的介电、压电和机电耦合等性能，首次发现了PZT基材料在铁电-反铁电相界处具有高Kt和低Kp的性质，机电耦合各向异性Kt/Kp也比准同型相界要高，Kt≥0.40，Kt/Kp≥3.0，并把这一现象归因于电场诱导AF-F相变和反铁电双子晶格间的强耦合作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。