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The ductile-brittle transitions due to both temperature and torsional prestrain were discussed by means of the micoscopic parameter ln.

利用扫描电镜测量了BHW60钢、20钢和45钢拉伸试样断口心部的临界空穴扩张比Rc/Ro,并据此分析了由于环境温度和扭转预应变等因素引起的韧脆转变过程及其细观形态。

In 500—1000 ℃, electronic hole conduction is dominant in dry and wet oxygen, air or nitrogen. Protonic conduction is dominant in wet hydrogen and it is about two orders of magnitude higher than that in hydrogen-free atmospheres.

在500~1000℃下,在干燥和潮湿的氧气、空气和氮气气氛中,样品以电子空穴导电为主;在潮湿的氢气气氛中,以质子导电为主,其电导率比不含氢气气氛(O2,air,N2)中的电导率约高两个数量级。

Formation of exciplexes at the interfaces of the pyrazoline derivatives and BBOT layers were determined by photoluminescence spectral studies on the HTM/BBOT bilayers and HTM∶BBOT mixed evaporated films as well as electroluminescence measurements.

以两种吡唑啉衍生物为空穴传输材料和BBOT为电子传输材料组成双层器件,获得了相对于组成材料的荧光光谱红移和宽化的电致发光。

Located in the prospecting lines Nos.47 and 37-33 on the middle 270m section, the mineral typomorphic characteristics are as follows: pyrite possesses the combination of octahedron with pyritohedron, pyritohedron with octahedron, etc It appearsas hole-centre and mix center conduction, if being electron-centre conduction, the absolute magnitudes of thermoelectromotive force and thermoelectromotive coefficient of pyrite are bigger relatively; pyrite contains Cu; the relative absorbency in quartz D(subscript H2O0.9403, D(subscript CO2)0.1961, D(subscript CO2)/D(subscript H2O)0.2591 in prospecting lines 37-33 is smaller than average D(subscript H2O1.3267, D(subscript CO2)0.3090, D(subscript CO2)/D(subscript H2O)0.338 2 in the deposit.

江西茅排金矿区270m中段47勘探线及37~33勘探线的矿物标型特征为:黄铁矿形态见有八面体和五角十二面体,五角十二面体和八面体等聚形;出现空穴心型导电和混合型导电黄铁矿,若为电子心型导电黄铁矿,其热电动势和热电系数的绝对值相对较大;黄铁矿成分中检测出Cu;石英相对吸光度(37~33勘探线)D(下标 H2O)0.9403,D(下标 CO2)0.1961,D(下标 CO2)/D(下标 H2O)0.2591,略低于矿区研究样品的平均值D(下标 H2O1.3267,D(下标 CO2)0.3090,D(下标 CO2)/D(下标 H2O)0.3382。

The anodes are injected into Alq3 hole through TDP when using low DC voltage, and captured by Alq3 together with the electrons injected into the Alq3 through cathodes to form up excitonic pairs, and the excitonic compounding produces radioluminescence.

在加较低直流偏压时,阳极通过 TDP 注入到 Alq3 的空穴,与阴极注入到 Alq3 的电子被Alq3 捕获形成激子对、激子复合产生辐射发光。

Factors , photo-induced restoration , leading to specific changes in the most of the hole peaks on TSC spectra, but without reappearing of the TSC peaks before PQ, and reillumination with PQ light.

在本研究中,首次在T=75K用PIR光照射后的热激电流测定了深能级空穴陷阱的填充率,并与在不同PQ光照射时间下的陷阱填充率比较。

The electroluminescence devices (ITO/NPB/emitting layer /BCP/Mg : Ag) based on 1, 4-bis (4-N, N-methylamino styryl) naphthalene as emitting layer have been designed by the energy band matching principle.

以自制的&D-π-D&对称型有机绿色发光分子1,4-双(4'-N,N-二甲基氨基苯乙烯基)萘为发光层,在结构为ITO/NPB/BMABN/BCP/Mg: Ag的器件中,研究了空穴阻挡层厚度对器件发光性能的影响。

Tetraiodo 9,9' spirobifluorene (2) is the key intermediate of hole transport media and conducting polymers.

2 ,2' ,7,7'-四碘-9,9'-螺二芴具有特殊的螺形结构,它是合成空穴导电材料OMeTAD和TAD及其它一些导电高分子的关键中间体。

Meanwhile the defects are also studied by means of the methods of EPR, PSL, thermostimulated luminescence and absorption spectroscopy. These results indicate that the principal defects are F centers and O〓 in PSL. O〓 centers are formed by O〓 ions substituting for F ions with a trapped hole The trap depth of two kinds of F centers is obtained by using thermoluminescent spectra.

同时还利用电子顺磁共振谱,光激励发光,热释发光和吸收光谱的方法,研究了其材料中缺陷的性质,实验结果表明在光激励发光过程中主要的缺陷是F心和O〓心,其中,O〓心是O〓离子替代F〓离子并束缚一个空穴而形成的局域中心。

SEM analysis finds that the fractures are intercrystalline plus quasi-cleavage fractures under quasi-motionless state;with the increase of stress intensity factor,fractureschange from transcrystalline quasieleavage fractutes to microvoid-coalescence dimple plus cleavage frac-tures,The increase of fracture toughHess of 8090Al-Li alloy under high stress intensity factor is associ-ated with the deformation mechanism and the change of precipitation Free Zone of grain boundary.

扫描电镜分析发现,准静态下的断裂为沿晶和准解理混合断口;随着应力强度因于的增加,断裂从准解理断裂过渡到准解理和显微空穴聚集的韧窝断裂舶混合断口。高应力强度因于率下断裂韧度的提高与其变形机制和晶界无沉淀区的变化有关。

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