查询词典 morphologies

The effect of the tool composition on the friction and wear behavior was investigated,and the morphologies of the rake face and rear face of the tool cutting the steel in air and nitrogen were observed on a scanning electron microscope. It was found that the Al_2O_3/TiB_2 tool was dominated by adhesive and abrasive wear in low speed dry cutting; while in high speed dry cutting,the tool was characterized by oxidation wear. An oxide layer of TiO_2 was formed by way of the oxidation of the reinforcing agent TiB_2 at a very much high cutting temperature, which contributed to greatly reducing the friction coefficient and increasing the antiwear life of the tool.Such a friction-reducing and antiwear behavior of the oxide layer was enhanced with increasing content of TiB_2 in the tool composite. However,the tool showed a relatively poorer wear resistance in N_2 than in air, because N_2 acted to retard the oxidation of the TiB_2 and the formation of the oxide layer on the tool rake face.

结果表明：低速干切削时，Al2O3/TiB2陶瓷刀具的磨损机制主要表现为粘着磨损和磨料磨损；而在高速干切削时，刀具的磨损机制主要表现为氧化磨损，刀具表面经由氧化反应生成具有润滑作用的反应膜而起到固体润滑作用，从而使刀具的耐磨性能提高，随着TiB2含量和切削速度的增加，反应膜的减摩抗磨作用增强；而在切削区通入氮气时，由于刀具表面氧化膜形成受阻，刀具的抗磨能力有所降低。

The rapidly solidified Al98-3xCu2xFexNi1Ce0.5Zr0.5 alloys were fabricated by means of spray forming technique. The morphologies and hardnesses of these alloys were studied.

摘 要：制备了多种Al98-3xCu2xFexNi1Ce0.5Zr0.5合金喷射成形毛坯，同时研究了该类合金的快速凝固组织和硬度随合金组分变化的规律。

The effects of silver iodobromide tabular grain emulsions on their crystal morphologies and photographic sensitivities,caused by varying accommodation techniques,the distribution and the amount of iodides,have been discussed in this paper.

高感光度乳剂制备中，如何利用好碘的掺杂技术，对于提高乳剂感光性能起至关重要的作用，本文针对碘溴化银 T颗粒乳剂中不同的加碘方式、碘的不同分布及不同的加入量，对其晶型和感光性能的影响进行了综述。

Their morphologies were characterized with scanning electron microscopy, transmission electron m...

通过扫描电子显微镜、透射电子显微镜的观察，以及对产物的拉曼光谱分析发现，用本方法制备得到的碳纳米管形态良好，石墨化程度高。

In this article, the aim we pray is to synthesize small-scale Cu2O with uniform morphologies by simple method, and then discuss the activities of photocatalysis of Cu2O by degradation of the methylene blue and methyl orange.

因此，许多研究者开始致力于开发可以利用可见光或太阳光来处理环境污染物的新型可见光响应型光催化剂的研究。

The use of rare earth vanadates as supports for active gold catalysts opens up new routes in the research work for high performance catalysts. Bismuth vanadate micro/nanocrystals with different morphologies were synthesized by surfactant assisted hydrothermal/solvothermal methods.

建立了表面活性剂辅助的水热及溶剂热合成方法，通过选用合适的表面活性剂及控制单体浓度，获得了一系列不同晶形及形貌的BiVO4微/纳米晶，研究了晶体结构与生长行为的相关性。

The products present two different morphologies. We studied the nucleus in the center of the tetrapods by TEM, SAED systematically and finally discuss its growth mechanism.

利用透射电子显微镜，选区电子衍射技术等技术对其中心成核区域做了大量的微结构分析，讨论了其生长机制。

The electrodeposition method with amino acids as soft templets may supply a novel and facile way to synthesize functional materials that have special structures and morphologies.

在电沉积制备ZnO的过程中，以氨基酸作为软模板调控沉积物的形貌的方法，可以推广到其它金属氧化物的制备中。

The optical absorbance properties of all films were examined by UV-VIS spectrometer. The results show that the absorbance curve of TiO2/Pt/TiO2 composite film redshifted by 30 nm. Its absorbance curve expanded even up to 670 nm. The SEM results show that there existed a difference in the morphologies and size distribution of three kinds of films.

扫描结果表明：3种薄膜中TiO2颗粒形状有所差异，在夹层式TiO2/Pt/TiO2薄膜中，颗粒尺寸较均匀，大小在20～40 nm之间；TiO2/TiO2/Pt薄膜表面颗粒聚集较严重；而Pt/TiO2/TiO2薄膜中颗粒大小不均，部分颗粒长大现象较严重。

The reaction temperature and reactants concentration have important influence on the morphologies of the products.

反应温度和反应物浓度对产物的形貌影响较大，反应时间对产物的形貌影响不大，但随着反应时间的延长，产物的粒径有增大的趋势。

It inculcates justification before God on the ground of human merits.

它说明在上帝灌输在地上人类优点。

TH Leaguer has excellent Quality Control and Management System.

本公司具有完善的品管部门。