晶系

According to the Vegard's law and density functional theory of quantum mechanics, the lattice match conditions of Boron-contained arsenide and antimonide quaternary materials have been deduced, the bandgap properties of such quaternary materials have been theoretically analyzed, and the bandgap bowing parameters of all ternary compounds included have been theoretically calculated.

依据维加德定理和量子力学中的密度泛函理论计算出含硼砷化合物和含硼锑化合物四元系材料与GaAs、Si晶格匹配的条件及其带隙性质，同时计算出上述四元系材料所含三元系材料的能带弯曲参数，进而推导出BInGaAs、BInAlAs、BGaAsSb和BGaPSb四元系材料的发光波长与硼元素并入比例的关系。

This invention relates to a new type nanometer crystal Fe-Zr-Nb-Si-Al-Cu series soft magnetic alloy super thin band and its process technology in which, the mother alloy is smelted by vacuum IF induction oven, an amorphous band is processed by a single quick cooling device to be processed by magnetic field heating at last to get the needed product with good soft magnet performance and iron core made by the super thin band improves its magnetic performance greatly.

本发明为一种新型纳米晶Fe-Zr-Nb-Si-Al-Cu系软磁合金超薄带及其制备工艺。由真空中频感应炉冶炼母合金，用单辊冷急装置制得非晶带，最后对非晶带进行磁场热处理，从而制得所需产品。本发明的合金超薄带具有优良的软磁性能，生产成本也较低。由本发明的超薄带制得的铁芯，其磁性能有很大改善，在国防和民用工业方面有广泛用途。

Al /AlLi-Mg〓Si and α/TiAl〓-Mg〓Si pseudobinary directional eutectic composites with fine structural integrity were achieved by investigating the influence of various amounts of alloying Li and Ti on the eutectic line, the preferred eutectic reaction point and the range in which eutectic structure appears in Al-Mg-Si system, through which the modification on the matrix and strengthening phase in this system was realised.

通过考察不同含量Li和Ti合金化对Al-Mg-Si系中共晶线、最佳共晶成分点及产生共晶组织的范围的影响，制备了组织完整性良好的α/AlLi-Mg〓Si和α/TiAl〓-Mg〓Si伪二元定向共晶复合体，从而实现了对其基体和强化相的调整。

The results of Raman, SEM and EPMA tests show that the microstructure defects of the chalcogenide glasses play an important part in their second-order nonlinear optical properties. The glasses show large SNOP because of Sb2S3 microcrystal or the mental antimony in the glasses even before they were polarized. After the electrical/thermal polarized, GeSbS glasses show larger SNOP with the increase and growth of the microcrystal. The glasses show larger SNOP because of the existence of Sb2S3 microcrystal or the mental antimony in the glasses.

通过研究玻璃的拉曼光谱、扫描电镜和电子探针显微分析后发现，硫系玻璃内部的微结构缺陷对其二阶非线性光学性能有显著影响，玻璃体系内存在的Sb2S3微晶或金属锑颗粒能使硫系玻璃在未经极化处理前就具有较大的二阶非线性光学性能；经电场温度场极化处理后，随着微晶的增多和进一步长大，导致GeSbS玻璃具有更高的非线性光学性能；由于Sb2S3微晶或金属锑的存在，导致玻璃具有较高的二阶非线性光学性能。

In this paper,the forming mechanism and affecting favtor of bulk metallic glasses is systematically discussed from the aspects of thermodynamic, kinetic and microstructure . Thermodynamic factors which favor the amorphization of alloys analyzed, the glass forming range of ternary alloys system was proposed by using Miedema theory, Toop model and considering the influence of free energy of pure metals at different temperature. The approach was applied to predict the composition range of amorphous Mg-Cu-La alloys. Several methods(such as three empirical criterions ,binary alloys phase diagram , Miedema theory and Toop mode) were used to design a series of Mg65Cu25La10 、Mg68Cu17La15 and Mg57Cu23La20 alloys, These bulk amorphous alloys with maximum diameter thickness reaching to 1mm were prepared by means of graphite-molding casting though the raw materials are of a low purity by conventional casting processes at a low cooling rate.

本文从合金的热力学、动力学及结构形成条件方面系统的讨论了Mg 基大块非晶的形成机制及影响因素，并从非晶形成的热力学观点出发，综合应用Miedema理论和Toop 模型，并考虑纯金属在不同温度下的自由能，在此基础上提出了一种定量预测三元非晶合金形成范围的方法，用该方法计算Mg-Cu-La 三元合金系的非晶形成范围，应用多项技术(三经验原则、二元合金相图及Miedema 理论和Toop模型)设计了Mg65Cu25La10 、Mg68Cu17La15 和Mg57Cu23La20非晶合金。

As the twinborn shear department of {112}m is obstructed, slipping department {111}P of parent phase begin to work, rely on dislocation"s slipping, coordinate flaky martensite"s twinborn shearing and form dislocation inferior structure at M phase corresponding plane(contain the interface between parent phase and martensite phase).

在本实验电镜照片上可以观察到在片状马氏体亚结构同时存在相变孪晶和形变孪晶，当{112}_m孪生切变系受阻时，母相中滑移系{111}_p启动，依靠母相中的位错滑移协调片状马氏体的孪生切变。

The present invention relates to an ultraviolet detector and manufacture method thereof, in which a buffer layer is formed on a baseplate and a P-type GaN layer is formed on the baseplate by using epitaxial method. By availing ion-distribution-and-vegetation technology, a first N-type GaN layer is vegetated and invested in the P-type GaN layer by distributing and vegetating Si.sup.+ ions in that layer, and a second N-type GaN layer having a thicker ion concentration is invested in the N-type GaN layer.

专利简介本发明系关於一种紫外光检测器及制程方法，其主要系在一基板上形成一缓冲层，利用磊晶法在缓冲层上形成一P型氮化镓系层，并接著以离子布植技术将Si+离子适当地布植於该P型氮化镓系层中，形成一N型氮化镓系层及包覆在此N型氮化镓系层中且布植浓度更高的另一N型氮化镓系层，最后在该P型氮化镓系层及第二N型氮化镓系层上分别镀上一环状金属层及另一金属层，以作为欧姆接触层。

The atom structure model of Ni64Pd16Al20 amorphous alloy was set up by using molecular dynamics theory.

摘 要：根据分子动力学理论建立了非晶Ni64Pd16Al20的结构模型，利用Recursion方法计算了Ni64X16Al20系非晶及相应晶态的电子结构。

The synthetic technologies of calcium carbonate whiskers are reviewed, most of which are carried out in the normal gravity environment by adding some kind of morphology-control additive or needle-like crystal seeds of calcium carbonate supplemented with certain phosphate so as to prompt the crystal of calcium carbonate whiskers to grow in a certain direction to the reaction system.

摘 要：晶须碳酸钙的合成技术备受关注，其中绝大多数方法是在常重力场中，通过向反应物系中添加某种晶形控制剂，或预先添加针状碳酸钙晶种，并辅以能够促使碳酸钙晶体沿单一方向生长的磷酸系助剂。

The disordered solid solution Al was obtained for Fe_(25)Al_(65)Ni_(10) mixture powder. The mechanical alloying of Fe_(0.25)Al_(0.75-x)Ni_x(x=0.05,0.175,0.25) mixture powders result in intermetallic compounds. The results of mechanical alloyed_(1-x)Ni_x (x=0.4,0.6) and (FeAl_3)_(1-x)Ni_x(x=0.1,0.3) mixture powders indicate that the ratio of iron and aluminum determines the formation of intermetallic compounds. The FeNi intermetallic compound, cerium oxide and one unidentified phase were obtained by mechanical alloying FeCeNi_3 and Ce_2 mixture powders.

对于合金化过程中的结构演变采用X射线衍射仪、DTA或DSC热分析仪、SEM进行分析，对Al-Fe-Ni和Ce-Fe-Ni两个三元系的机械合金化过程的研究表明：对于Al-Fe-Ni三元系来说，成分为Fe_(25)Al_(65)Ni_(10)的混合粉末经机械合金化后可生成非晶与纳米晶的混合物；球磨成分为Fe_(0.25)Al_(0.75-x)Ni_x(x=0.05，0.175，0.25)混合粉末，可形成Al_3Ni_2，AlFe_3，AlFe_(0.23)Ni_(0.77)，球磨成分为_(1-x)Ni_x(x=0.4，0.6)和(FeAl_3)_(1-x)Ni_x(x=0.1，0.3)混合粉末，Fe与Al比例相同时球磨所形成的金属间化合物也相同。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。