层化

The orthogonal experiment for carbonization process indicated that the heating rate and the final carbonization temperature showed more significant influence on the properties of aerogels than the holding time did.

采用IR分析技术跟踪C〓F气凝胶的热解过程，发现400～600℃之间样品中出现石墨化结构的红外活性振动，表明炭气凝胶的微结构中开始有乱层石墨化微晶出现。C〓F气凝胶是典型的中孔材料。

The bath compositions of trivalent chrome black passivation for zinc-iron alloy coating were optimized by orthogonal test method.

采用正交试验法对锌-铁合金镀层三价铬黑色钝化工艺进行优化，并研究了工艺参数对钝化膜外观和耐蚀性等影响。

The bath compositions of trivalent chrome black passivation for zinc plating coating were optimized by orthogonal test method and the effects of operation conditions on the appearance and the corrosion resistance of the passivation film were investigated.

采用正交试验法对镀锌层三价铬黑色钝化工艺组分进行优化，研究了工艺参数对钝化膜外观和耐蚀性的影响。

AES result shows that this beneficial effect is mainly related with the formation of passive film with chromium oxide on the bombarded surface.

钝化膜的俄歇电子能谱分析结果表明，腐蚀性能的改进可归因于表面形成了一层富铬的以氧化膜为主的钝化膜，也与混合界面上形成的亚稳相有关。

When used in superabrasive grits synthesizing, especially in the case of cubic boron nitride, the consumption of anvils can be decreased effectively; and the quality and yield of CBN can he improved.

在超硬材料合成中，尤其是立方氮化硼合成中，能有效降低锤耗，同时可提高立方氮化硼的合成品质及产量；超硬材料表面镀钛及钛合金后，能实现镀层和结合剂的冶金结合，工具寿命提高30%以上；钛对许多氧化物质和还原物质具有极好的耐腐蚀性，适用于人造金刚石的批量电解提纯工序。

The preparation of the low expansion graphite intercalated compound and the selection or development of the catalyser were involved in the research.

在国内外首次研究成功以无硫低倍膨胀石墨层间物为原料合成氟化膨胀石墨和低温催化合成氟化石墨新技术。

Through heating zirconium hydride, high purityC02 and red phosphorous, the gas adsorbs, desorbs, scatters and finally forms the compact film on the surface of zirconium hydride.

研究了通过加热氢化锆、高纯二氧化碳和磷，在设定的工艺参数下，通过反应气体在氢化锆表面吸附、离解，然后通过元素扩散和反应生成致密的膜层。

As a result, some ideas about the fabrication are put forward.The EPMA experiment results show that the main element such as W, Mo, Ti, Ni, Cu, Fe element are changed gradually in W-Mo and W-Mo-Ti FGM. In the layer rich in W, the grain are intervained and are mixed mechanismly. The same is to the layer rich in Mo and W-Mo. These grain felt up by some sinter. In Mo-Ti layer rich in Mo, the grains are also mixed mechanismly. Ni, Cu, Fe element assembled at interface. Ni melt by Cu plays an vital role in sinter effect. The microstructure characteristics result show that the compactness of W-Mo and W-Mo-Ti FGM is good.

电子探针实验结果表明W-Mo系、W-Mo-Ti系梯度功能材料中主要元素W、Mo、Ti、Ni、Fe、Cu分布整体上具有梯度变化规律，发现富W区、富Mo区、W-Mo混合区中颗粒交错分布，基本上以机械混合的形式存在，颗粒之间主要靠烧结剂的粘结作用实现致密化；以Mo为主要组分的Mo-Ti混合区，也是以机械混合的形式存在；Cu溶解于Ni形成固溶体更好地起到活化烧结能力，Ni、Cu、Fe在宏观层间界面富集，有利于烧结致密化。

In this thesis, the InGaN/GaN MQW LEDs with various barrier doping structures are investigated.

本论文主要研究不同量子井阻挡层掺杂结构的氮化铟镓/氮化镓发光二极体，并探讨不同的掺杂结构对其光电特性之影响。

He said global warming could lead to melting of the arctic tundras, setting free large volumes of methane, which would in its turn increase global warming.

他表示，全球暖化融解北极冻土层并导致大量甲烷释出，而这些甲烷将再反过头来加快暖化效应。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。