变晶

Based on the design of the interfacial free energy, the positive heat of formation, which is an unfavored factor for alloying, could be overcome for forming amorphous alloys in those equilibrium immiscible binary metal systems, thus confirming the thermodynamic model for metallic glass formation proposed previously by this research group.

二、通过界面能的设计可以克服正生成热的不利影响而制备出非晶态合金，论证了本研究组提出的非晶化相变的热力学模型的合理性。

The six data in the age spectra defined an 40 Ar 39 Ar isochron which gives an age of 1862±37Ma.

这一结果表明，虽然变斑晶石榴石中仅仅在显微矿物包体、流体包裹体和晶格缺陷中赋存少量的 K+，但其生成的 4 0 Ar*仍然能够形成稳定的年龄谱。

The results showed that the hardness of CGHAZ is decreasing,bainite ferrite strip coarsens,the shape of M－A constituents transforms strip into block,its size becomes large,and its bulk extends, with increasing of t8/5.In addition austenitic,M－A constituents in γ grain boundary coarsens and manifolds with increasing of t8/5.They all deteriorate the toughness of pipeline.And the extended zone of impact fracture shows brittle.

结果表明，随着t8/5的增加，粗晶区硬度逐渐减小，贝氏体化铁素体粗化，且其间的M－A组元由条状转变为块状，平均弦长增加，体积分数增大，奥氏体晶界M－A组元增多变粗，管线钢的韧性恶化，抗裂性变差，冲击断口扩展区呈脆性断裂。

From the laboratory population, it seems that when the krill shrink, the crystalline cone number does not decrease.

从活体培养的结果来看，当南极磷虾身体出现负生长时，磷虾复眼中的晶椎数目保持不变，即晶椎数目不受负生长的影响。

In all experimented cooling conditions the alloy with the addition of 0.15% Mg possesses the coarsest eutectic structure,while the alloy with the 0.3% Mg addition the finest structure in eutectics.

在试验范围内，Al-Si11.0合金中加入0.15%镁时，共晶组织变得较粗；而当镁的加入量增加到0.3%时，其共晶组织比Al-Si11.0合金细得多，分析了出现这一结果的原因。

This has an important meaning to the industrial manufacture.DSC, WAXD and polarizing microscope with hot stage experiments were performed to describe what led the SSP rate acceleration of PET/MMT. It was shown that montmorillonite acted as a very good nucleating agent in PET crystallization process, which results in the lower crystallinity, more small microlites, and more surfaces of microlites.

为研究PET／MMT固相缩聚效率提高的原因，通过热台偏光显微镜、DSC、X-射线衍射等手段对样品的结晶进行观察与分析研究，结果表明蒙脱土对PET的结晶有明显的成核作用，使其晶核生成速率迅速提高，晶核数量明显增多，从而使整个结晶过程的时间变短，同时形成了更多结构不完善的微晶体。

Many twinnings are produced during the process of AZ31 magnesium alloy deformation at room temperature, twinning deformation is the mainly deformation manner, and twinning increases with the deformation increase up to fracture.

AZ31镁合金室温下压缩产生大量孪晶，变形方式以孪生变形为主，且随着应变的逐步变大，孪晶明显增加直至断裂。

There is delocalization effect on d-electron orbit at the same temperature. In addition, in high temperature region, another anomaly is observed at about 200K in recoilless factor.

发生在超导温度以上的与晶格不稳定性相联系的但是没有明显的结构相变的晶格软化效应对于进一步探讨超导机制有重大意义。

Significantly shortening of 〓C T〓s for orthorhombic crystals indicates that the thicknesses of crystals decrease during the course of stretching.

通过对不同拉伸比样品〓C T〓弛豫行为的研究发现，拉伸导致正交晶晶片厚度明显变薄，拉伸对于无定形相的高频分子运动几乎无影响。

The molecular motion of amorphous region at high-frequency was found to be hardly affected during the stretching processes. In summary, elongation has created major but different influences on the morphology and molecular motion of the aforementioned four series of polymeric elastomers. For those elastomers like natural rubber and poly , elongation has induced crystallization of the noncrystalline or the soft segments. The crytallinitiy and the crystal thicknesses increase monotonously during the course of the stretching; On the other hand, the stretching processes for those semicrytalline copolymers like EMA and POE are rather complex, including the formation of crystal at relatively low λand the destruction of the crystal at the utmost λ. It revealed that stretching process has resulted in a decreasing of the thicknesses and a shortening of 〓C T〓s for the orthorhombic crystalline components.

拉伸对上述四个弹性体体系的聚集态结构都产生了很大影响，但是影响的程度和内容因体系而不同，对于本身存在着化学交联或者是物理交联的体系而言，拉伸导致了其中本来难以结晶组分的结晶，且结晶度随着拉伸比增加而增加，与此同时，体系结晶的晶片厚度也会逐渐增加；而对于结晶性共聚物体系，如EMA和POE，结晶区本来起到了物理交联的作用，在这种情况下拉伸的影响变得比较复杂，拉伸对于不同晶型的影响有所不同，在拉伸比较低的情况下体系总体的结晶度会有所增加，说明有新的结晶产生，当接近或达到断裂伸长比时，体系的结晶度会突然降低，含量占优的结晶会被拉伸所破坏，含量较低的结晶在整个拉伸过程中受的影响较小。

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。