含硼的

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。

Some conclusions are followed:(1)the reaction ratio of boron is 12% in primary combustion;(2)the degree of agglomeration can be decreased adopting boron coated with AP;(3)the content of oxygen is very important for afterburning efficiency;(4)the afterburning efficiency will be changed with different air-gas ratio;(5)the head distance of after-burning chamber is increasing, the circumfluence in the head of after-burning chamber is stronger and the distribution of fuel backward the after-burning chamber is more well-proportioned.(6)the combustion efficiency of DR will be improved by increasing the area of fuel nozzle.(7)the angle between dual air-inlets have complex influence with the combustion of DR.

通过本项研究，取得如下结论：（1）一次燃烧硼反应比例在12～15％之间；（2）AP包覆硼，可以降低硼结团度，有利于一次燃烧喷射效率的提高，也有利于硼在补燃室进行二次燃烧；（3）进气空气中的氧含量对二次燃烧非常重要；（4）对于一定配方的含硼富燃推进剂，不同的空燃比，二次燃烧效率不同；（5）补燃室头部距离的增加能增强补燃室头部回流以及提高燃料在补燃室后段分布的均匀性；（6）在一定范围内，增加一次燃气喷嘴面积能提高冲压发动机燃料的燃烧效率；（7）进气道夹角对补燃室内燃料的燃烧影响复杂。

Two benzothiazole ester compounds containing boron with different alkyl chain, Di-n-hexyl-[2-(2-benzothiazolylthio)] ethyl boric acid ester (BNS-1) and Dicyclohexyl-[2-(2-benzothiazolylthio)] ethyl boric acid ester(BNS-2), were synthesized and their tribological performance as additives in rapeseed oilwas investigated using a four-ball testing machine.

合成了两种含不同烷基链的含硼苯并噻唑酯类化合物，即二正己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-1)和二环己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-2)。

The present application situation of boric acid in the area of lubricating oil additives was introduced,such as boracic detergents,dispersants,pole tension antiwear agent and antirust agent,etc..

介绍了硼酸在润滑油添加剂中的应用现状，包括含硼清净剂、含硼分散剂、含硼极压抗磨剂、含硼防锈剂。

The results of boron, borax and boronic iron concentrate as additives in the production of sintering pellets are compared and analyzed.

比较分析了硼、硼泥、含硼铁精矿作为添加剂在烧结球团生产中的应用，得出了含硼铁精矿作为烧结球团的含硼添加剂在经济上、工艺上都是可行的，且性能优于硼泥的结论。

In this paper,the built-up welding rod of the wear-resisting alloy with boronic compound hard phase is studied by author which is a Cr-Mn-B alloy system, the structure of buitt-up welding layer is consist of eutectic of austenite and contain boronic compound hard phase.

该文研究的硼化物硬质相耐磨合金堆焊焊条为Cr－Mn－B合金系，堆焊层组织由奥氏体和含棚化物硬质相的共晶体组成，由于硼化物硬质相的硬度高，故含硼化物硬质相的共晶体在磨损过程中起到耐磨骨架作用，显著地提高了堆焊层的耐磨性。

A new organic compound, trans-2--5-dimesitylborylthiophene (abbreviated as DMASBT, 5) with dimesitylboryl, dimethylamino and styryl-thiophene as electron acceptor, electron donor and conjugate bridge respectively, was synthesized. Its crystal structure determined by X-ray diffraction method indicates that the B-C bond between B atom and it bridge is obviously shorter than those of between B atom and mesityl groups. This remarkably strengthened B-C bonding can be regarded as an evidence of additional p-7t conjugation between the B atom and n bridge.

合成了以含硼基团为电子受体，以二甲胺基为电子给体，以苯乙烯基噻吩为共轭桥的新化合物2-[（4'-N，N-二甲胺基）苯乙烯基]-5-二米基硼-噻吩 trans-2-[(4'-N， N-dimethylamino) styryl]-5-dimesitylboryl-thiophene（简写为DMASBT，5）。X射线衍射方法测定其单晶结构表明，硼原子与π共轭桥之间的硼碳键相对于其它的硼碳键明显缩短，硼与π共轭桥之间存在除了σ键之外的p-π共轭作用。

In this paper boron-doped diamond single crystals was synthesized at high pressure and high temperature with iron-based catalyst doped with B4C, h-BN and Na2B4O7. The effects of multiple boron sources on diamond were studied according to the characterization of structure and properties of the boron-doped diamond.

本文使用碳化硼、六方氮化硼和硼砂三种硼源材料复合添加的铁基触媒在高温高压下合成含硼金刚石，通过对金刚石结构与性能的表征，探讨多种硼源复合添加对含硼金刚石的影响。

The recent progress in molecular design and synthesis of polyborosilazane precurosors for SiBCN ceramics is reviewed.Especially the borazine modified polyborosilazane,monofunctional borane modified polyborosilazane on side chai...

本文分4个方面，即基于硼吖嗪的聚硼硅氮烷、侧基含有环硼氮烷或单硼烷的聚硼硅氮烷、基于多官能硼烷构筑的聚硅氮烷和含硼聚硅基碳化二亚胺，从聚硼硅氮烷分子结构设计、改性、合成及在多维尺寸材料中初步应用的角度综述了该领域国内外研究的新进展，指出了聚硼硅氮烷陶瓷前驱体设计合成研究发展中值得关注的新方向。

Transition metal borides and inorganic boron-containing compounds, such as TiB〓, BN, B〓C and BP, are one of the most important groups for application in high-temperature performance, electronics and catalysts. Traditionally, they were prepared by high-temperature reactions; however, the products were beyond nanometer scale.

中文题名溶剂热合成硼化物及非金属含硼化合物纳米材料副题名外文题名论文作者谷云乐导师钱逸泰学科专业无机化学研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数70页关键词纳米材料硼化物溶剂热合成馆藏号BSLW /2003 /O613 /6 硼化物、非金属含硼化合物功能材料（如硼化钛、氮化硼、碳化硼和磷化硼等）通常具有高硬度、高熔点、机械强度大、高温化学稳定性好等一系列优良性能，有些还具有奇异的光、电、磁、热学性能和催化活性，是一类最富潜力的非氧化物高温结构材料、电子材料和催化材料。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐