Properties of optical phonons in multinary phosphide mixed crystals;
磷化物多元混晶中光学声子的性质
The solid state photoreactions of mixed crystals of acetylcoumarins and indole were investigated,and the mixed crystals were characterized by solid UV spectra, solid FL spectra and X-ray powder diffraction analysis.
本文研究了乙酰基香豆素及其衍生物与吲哚的混晶在微环境影响下的固相光反应,并用固体紫外光谱、固体荧光光谱和X-射线粉末衍射技术考察了混晶的特征。
The result show that for two-phase rolling,the structure with mixed crystals is formed in product due to rolling in partially recrystallized zone caused by the effect of rolling piece thickness increment on deformation temperature of non-recrystallized zone,and as the result,the low temperature rate after rolling,making low temperature impact strength lo.
研究表明,在采用两阶段轧制时,由于中间坯的厚度较大,从而对未再结晶区的变形温度产生影响,易于产生在部分再结晶区轧制的现象,使钢板出现混晶现象,从而造成钢板低温冲击值较低。
The cause bringing mixed grain in heavy forged 34CrNi3MoV steel during heat treatment processing was investigated by means of Quanta 400 SEM.
应用Quanta 400型环境扫描电镜等方法对34CrNi3MoV钢大锻件在热处理过程中产生混晶的原因进行了研究和分析。
High impact values correspond to the samples of fine and even grains,the unevenness of the mixed grains reduces the impact values,and the strip-shaped microstructure can increase the longitudinal impact value.
对油井用管冲击试样的断口进行了扫描电镜以及金相检测分析,结果表明具有细小均匀晶粒试样的冲击值高,混晶组织的不均匀性使试样的冲击值降低,带状组织有利于提高纵向冲击值,得出冲击值高、低差异的主要原因是组织中出现混晶及带状组织。
Big forgings of 34CrNi3MoV steel often produce mixed grain appearances after normalizing treatment and quenching-and-tempering treatment,and mechanical properties of 34CrNi3MoV steel are seriously affected.
34CrNi3MoV大锻件在正火和调质处理后容易产生混晶,严重影响材料机械性能。
With TiCl_(4) and urea as the raw materials,the mix-crystals of rutile and anatase TiO_(2) were prepared at 100 ℃ by means of microwave irradiation method.
利用该纳米TiO2混晶作为光催化剂对有机染料溶液进行了降解实验,发现在日光照射50 m in后对藏蓝染料的降解率接近100%,所合成TiO2混晶样品的光催化活性明显高于单独晶相以及物理混合样品的光催化活性。
The mix-crystal of low quality 40Cr is caused by the impurity of big size barutype α-MnS along thegrains, which is generated by casting segregation or in hot rolling and cannot be cleared up in norrnal heat treat-ment.
低品质钢混晶的出现是沿晶分布大体积的长条状α－MnS夹杂。
Using TiCl4,NH3·H2O and surfactant op-10 as the raw materials,dispersion emulsion of mix-crystal nanometric TiO2 was obtained by two-stage hydrolyzed method in constant pressure;The effects of parameters such as pH,reaction time for acidity medium,the amount of surfactant op-10 were examined,taking acid red 3R as a specific for analysis.
以四氯化钛、氨水、表面活性剂op-10等简单易得的试剂为主要原料,采用常压液相、两步水解法制备出混晶纳米TiO2分散乳液;对乳液制备过程中的影响因素如pH值、酸性介质中的反应时间、表面活性剂量等进行了研究,并采用XRD、TEM、紫外-可见分光光度计等分析手段,对产品的物相、形貌、光吸收和光催化等性能进行了表征。
MOR/β zeolite co-crystalline materials had been synthesized by adjusting crystallizing conditions ofβ zeolite with NaAlO2, silica sol as sources of aluminum and silica respectively in homogeneous phase, and tetraethylammonium hydroxide (TEA+) as the template.
以铝酸钠为铝源、硅溶胶为硅源、四乙基氢氧化胺为模板剂,通过调节β沸石晶化条件用均相法合成了丝光沸石／β沸石混晶材料。
But there is not report about comparison between microparticle and nanoparticle, pure ZSM-5 and co-crystalline, unsupported and supported ZSM-5 zeolite in physicochemical and catalytical characters.
但将其微米颗粒与纳米颗粒、纯ZSM-5与混晶、非负载与负载型分子筛放在一起进行系统的物化性能和催化性能研究对比的工作尚未见报道。
Effect of rutile content on photocatalytic water-splitting for hydrogen production over composite-crystal nano-TiO_2;
金红石相含量对混晶纳米TiO_2光催化分解水制氢的影响
TEM results showed that the sample was sphere shape,and averaged particle size was 20～30 nm,XRD patterns showed that it was composite-crystal structure with rutile and anatase phase.
以简单,易得的无机盐为原料,采用两步反应法合成了一系列混晶纳米二氧化钛粉体,TEM观察产品为球型,粒径10~20 nm,无明显团聚。
The mixed crystals have a crystal form that is isomorphous with the monoclinic crystal form of ammoniun nitrate III.
这种混晶具有和硝酸铵3单斜晶形（类质）同晶的晶形。
Growth and performance characterization of K_(1-x)(NH_4)_xH_2PO_4 mixed crystals grown onto point seeds
K_(1-x)(NH_4)_xH_2PO_4混晶的点状籽晶法生长与性能表征
The mixed crystals have a lipophilic surface characteristic.
这种混晶具有亲脂表面特性。
Fine Structures of Energy Levels of DX Centers in AlGaAs:Sn Alloy Semiconductors;
AlGaAs:Sn混晶中DX中心能级的精细结构
Preparation and Performance of HNS/HMX Superfine Mischcrystal
超细HNS/HMX混晶的制备与性能
Normalization procedure was added before the transverse rolling for improving steel austenite grain fineness and removing mischcrystal structure.
在横轧前增加正火工序,改善钢的奥氏体晶粒度,消除混晶组织。
microwave mixing crystal diode
微波混频晶体二极管
hybrid diode transistor logic
混合二极管 晶体管逻辑
Crystallization Behaviour of PPDO/PDLLA Blends
PPDO/PDLLA共混物的结晶行为
THE STUDIES OF LC MIXING & CHOLESTERIC LC DISPLAY;
液晶材料的混合配比和胆甾相液晶显示的研究
Amorphous/crystalline blend effects on the performance of polymer-based photovoltaic cells
非晶/结晶共混对聚合物光伏电池性能的影响
Cataract :Opacity of the eye's crystalline lens. Cataracts causing central visual-field defects are most likely to affect vision.
白内障:表现为眼内水晶体混浊的眼科
By definition a cataract is an opacity in the lens.
白内障的定义就是晶状体混浊。
Study on Separation of Mixture of Binary Acids by Crystallization Method of Urea Adduct
混合二元酸尿素加合结晶分离的研究
Construction Technology for Mass Concrete with Dense Barite
高密度重晶石大体积混凝土施工技术
Crystallization Behavior of Miscible PA6 and PA6IcoT Blends
PA6/PA6IcoT相容共混物的结晶行为
The Thermal Stability and Crystallization Behaviors of PEN/PBT Blends
PEN/PBT共混物的结晶行为和热性能
Modification Effects of Lan-Rich Mischmetal on Hypereutectic Al-24% Si Alloy
富镧混合稀土变质过共晶Al-24%Si合金